CN105567305B

CN105567305B - Simulation moving bed for solid acid alkylating is reacted reacts and the method for catalyst regeneration with regenerating unit and raw material

Info

Publication number: CN105567305B
Application number: CN201410548768.2A
Authority: CN
Inventors: 朱振兴; 龙军; 侯栓弟; 张久顺; 慕旭宏; 杨克勇; 张哲民; 毛俊义; 唐晓津; 胡立峰; 郑博; 李永祥
Original assignee: Sinopec Research Institute of Petroleum Processing; China Petroleum and Chemical Corp
Current assignee: Sinopec Research Institute of Petroleum Processing; China Petroleum and Chemical Corp
Priority date: 2014-10-16
Filing date: 2014-10-16
Publication date: 2019-01-08
Anticipated expiration: 2034-10-16
Also published as: CN105567305A

Abstract

It reacts the invention discloses a kind of Simulation moving bed for solid acid alkylating and is reacted and the method for catalyst regeneration with regenerating unit and raw material, the device includes raw material and product area, regeneration feed area, rotary valve and adverse current simulation moving bed reactor, under the control of rotary valve, raw material imports in adverse current simulation moving bed reactor to be alkylated with the raw material in product area to react, the product generated in adverse current simulation moving bed reactor is back to raw material and product area, the catalyst regeneration medium in regeneration feed area, which imports in adverse current simulation moving bed reactor, regenerates catalyst, material in adverse current simulation moving bed reactor after catalyst regeneration is back to regeneration feed area.Described device and method realize solid acid alkylating reaction, product extraction, catalyst mitigation regeneration and the regenerated continuous and stable operation of catalyst depth, extend the service life of operation cycle and device, substantially increase the economy of device operation operation.

Description

Simulation moving bed for solid acid alkylating is reacted reacts with regenerating unit and raw material With the method for catalyst regeneration

Technical field

The present invention relates to a kind of device and methods for solid acid alkylating, and in particular, to one kind is used for solid acid The reaction of alkylated Simulation moving bed and regenerating unit and a kind of raw material for solid acid alkylating reacts and catalyst regeneration Method.

Background technique

Currently, one of the main task of petroleum refining industry is to provide transport fuel, gasoline is as a kind of important transport combustion Material, is widely used in the industries such as communications and transportation.According to data, to the year two thousand thirty, global gasoline demand amount will growth 22%.Therefore increasingly strict with the increase of gasoline consumption and environmental protection standard, around how solving gasoline cleaning metaplasia The problem of production, is increasingly becoming the hot spot of research and discussion.

Under the action of strong acid, with isoparaffin (mainly iso-butane) and alkene (C₃-C₅Alkene) it is that raw material generates alkyl The technology of carburetion provides possibility for the cleanly production of gasoline.This alkylate oil octane number with higher and lower thunder Family name's vapour pressure (Reid vapor pressure), is mainly made of saturated hydrocarbons, and the not objects such as sulfur-bearing, nitrogen, alkene and aromatic hydrocarbons Matter, thus be referred to as and clean gasoline, it is aviation gasoline and the ideal blend component of motor petrol.Alkylation techniques press catalyst Form can be divided into liquid acid alkylation and solid acid alkylating.Currently, in world wide about 90% alkylation production capacity be by What liquid acid alkylation techniques (sulfuric acid process and hydrogen fluoride) provided, although liquid acid alkylation techniques comparative maturity, and have Preferable reaction selectivity, but there is also many problems, such as liquid acid alkylation process all there is equipment seriously corroded Problem.In addition to this, for sulfuric acid process, process acid consumption is huge, and a large amount of spent acid all exists in transport and processing Some potential safety problems；For hydrogen fluoride, since hydrofluoric acid has stronger corrosivity and toxicity, and it is easy to wave Hair, can cause very big injury to human body.Therefore, in contrast, using solid acid as catalyst, environment will not only be made At pollution, and the problem of equipment is corroded is not present, a kind of alkylation process technology of green can be considered as, there is hair well Exhibition prospect.But during solid acid alkylating, since solid acid catalyst is easy inactivation, in order to keep certain reaction living Property, it needs to carry out frequent regenerative operation.Therefore, a kind of reactor skill that can be realized reaction and regenerative process serialization is developed Art is highly important to pushing for the development of solid acid alkylating technology.

A kind of fixed bed solid acid alkylation processes are disclosed in patent application US7875754.Two are used in the technique Fixed bed reactors blocked operation, and then realize the continuous operation of reaction and regenerative process.That mentions in the patent application is anti- Answer temperature at 50-80 DEG C, pressure is 0.1-0.3h in 18-24bar, the mass space velocity of alkene^-1, alkane alkene ratio is 16:1-32:1, alkene The conversion ratio of hydrocarbon is up to 98% or so.Operation cycle between reactor and regenerator is identical, and approximate range is used in 45min-2h Hydrogen regenerates catalyst, and in order to prevent during reactor and regenerator switch, alkene and hydrogen haptoreaction need Stop the charging of alkene and hydrogen during switching, and needs to carry out logistics displacement between reactor and regenerator, time swap Substantially in 4-7min.It is thus impossible to realize the continuous operation and malfunction between raw material reaction and catalyst regeneration.

A kind of fluid bed solids acid alkylation technology is disclosed in patent application CN1879956A, which mainly wraps Include riser reactor, fluidized-bed reactor, circulation regenerator and moving bed regenerator.Wherein liquid speed model in riser reactor It is trapped among 0.1-3m/s, liquid speed range is in 0.26-7.68cm/s in fluidized-bed reactor.Regenerative process can be according to the reproduction time come really Determine the form of regeneration reactor, if the regenerated time is several seconds to tens seconds, can individually use circulation regenerator.If regeneration Time is to arrive dozens of minutes in tens seconds, can individually use moving bed regenerator, and the liquid speed of regenerated liquid is 0.2-3cm/s.

A kind of fluid bed solids acid accordance micronizing technology, the technique mistake are disclosed in patent application CN1113906A Journey mainly includes that liquid consolidates uplink reactor, reclaimable catalyst settles back scrubber, liquid consolidates the upward regenerator of cocurrent, regenerated catalyst Settle back scrubber.Catalyst particle size used in the patent application can carry in 0.05-0.8mm, reactor and regenerator The liquid liquid speed that catalyst flows up is 1-15 times of particle final Sedimentation Velocity, sedimentation back scrubber in, using from it is lower to The cleaning solution of upper flowing carries out regenerated from washing to catalyst, and the flow velocity of cleaning solution is 0.5-5 times of particle final Sedimentation Velocity.

Using common fixed bed reactors, catalyst life is short, and to stop work after inactivation will be in entire fixed bed reactors Catalyst carry out high temperature regeneration, it is with short production cycle, it is difficult to realize continuous operation.It is although able to achieve and is urged using fluidized-bed reactor Agent reaction and regenerated continuous operation, but the flowing due to catalyst in the reactor, be easy to cause catalyst granules Abrasion, shortens the service life of catalyst.

It had both been able to achieve the reaction and regenerated continuous operation of catalyst using Simulation moving bed, and has not needed to stop work, together When in turn avoid abrasion caused by the flow process of catalyst in the reaction, be carry out solid acid alkylating react more satisfactory Reactor types.In Simulation moving bed, fixed phase catalyst can be envisioned for being inverse in the movement of material moving direction, raw material is mixed It closes certain point of the material in the middle part of reaction workspace continuously to be inputted, selectes the ratio of the flow velocity of both direction flowing, feed liquid is certainly Inlet is just divided into two parts of reverse flow, using feed entrance as reference point, catalyst seem while reaction generate product while to Upper movement, because referred to herein as " Simulation moving bed ".The production capacity and separative efficiency of Simulation moving bed can avoid than the fixed height of bed Channel between moving bed adsorption abrasion, fragment or dust occluding device or pipeline and solid particle seam.

A kind of cocurrent Simulation moving bed solid acid alkylating technology, the technology are disclosed in patent application US005523503A By three sections of reactor groups at one section is alkylated reaction, two sections of progress catalyst regenerations.Isoparaffin is in self-loopa Alkylate oil is generated with olefine reaction under the action of catalyst solid acid agent in fixed bed reactors.Two-stage catalytic agent regeneration is anti- Device is answered to be divided into low temperature liquid phase regeneration reactor and high-temperature steam regeneration reactor.Low temperature liquid phase regeneration reactor is by a series of fixations Bed reactor group at, by different stepping times regeneration reactor difference bed import low-temp recovery medium and extraction washing urge Medium after agent, realize logistics in catalyst and reactor and flow field simulation it is mobile.Each of low-temp recovery reactor Reactor can import reaction mass, become alkylation reactor after catalyst regeneration；Alkylation reactor loses in catalyst After work, it will also become a part of low temperature liquid phase regeneration reactor.It, will when low temperature liquid phase regeneration cannot restore catalyst activity Material in reactor all exports, and imports high-temperature steam, carries out high-temperature steam regeneration, which is used as high-temperature steam at this time Regeneration reactor uses.But this application discloses cocurrent Simulation moving bed solid acid alkylating technology, storeroom contacts not It is enough abundant, and reaction efficiency is to be improved.

Summary of the invention

The purpose of the invention is to overcome existing for the device and method for solid acid alkylating of the prior art Defect is stated, a kind of Simulation moving bed reaction for solid acid alkylating and regenerating unit and a kind of for solid dialkylaminobenzoic acid are provided The method of the raw material reaction and catalyst regeneration of change.

Therefore, to achieve the goals above, in a first aspect, the present invention provides a kind of simulations for solid acid alkylating Moving bed reaction and regenerating unit, described device include that raw material and product area, regeneration feed area, rotary valve and adverse current simulation are moved Bed reactor, under the control of rotary valve, the raw material in raw material and product area, which imports in adverse current simulation moving bed reactor, carries out alkane Glycosylation reaction, the alkylation reaction product generated in adverse current simulation moving bed reactor are back to raw material and product area, regrowth The catalyst regeneration medium in material area, which imports in adverse current simulation moving bed reactor, regenerates catalyst, adverse current Simulation moving bed Material after catalyst reactor regeneration is back to regeneration feed area.

Second aspect, the present invention provides a kind of sides of raw material reaction and catalyst regeneration for solid acid alkylating Method, the raw material reaction and catalyst regeneration carry out in adverse current simulation moving bed reactor, and the adverse current Simulation moving bed is anti- Answering device includes at least two fixed bed reactors, and each fixed bed reactors include at least one catalyst bed, the method Include:

(1) at the T moment, the liquid mixture of alkane and alkene from raw material with product area imported by rotary valve inverse Reaction is alkylated in the M bed of flow field simulation moving-burden bed reactor, conversion zone includes i bed；

(2) in synchronization T, from the M+i bed of adverse current simulation moving bed reactor by the liquid containing alkylate oil Mixture extraction, and raw material and product area are back to by rotary valve, oil-producing section includes j bed；

(3) in synchronization T, regenerating medium will be mitigated from the catalyst in regeneration feed area by rotary valve and import adverse current Mitigation regeneration is carried out to catalyst in the M+i+j bed of simulation moving bed reactor, mitigating regenerator section includes k bed；

(4) in synchronization T, catalyst is mitigated from the M+i+j+k bed of adverse current simulation moving bed reactor and is regenerated Material extraction afterwards, and regeneration feed area is back to by rotary valve, breeze way includes q bed；

(5) every after time t, the conversion zone, oil-producing section, mitigation regenerator section and breeze way move down a bed Layer；

After catalyst inactivation in bed reactor to be fixed, by the fixed bed reactors of inactivation and remaining fixed bed reaction Device is completely isolated, forms deep regenerative section and is carried out using the catalyst depth regenerating medium from regeneration feed area to catalyst Deep regenerative, to deep regenerative after, continue on for the conversion zone, oil-producing section, mitigate regenerator section and breeze way.

With regenerating unit, adverse current Simulation moving bed is anti-for Simulation moving bed reaction for solid acid alkylating of the invention Device is answered to be made of a series of fixed bed reactors including several catalyst beds, structure of reactor is simple, equipment installation and behaviour It is convenient and flexible to make comparisons.Fixed bed reactors are imported or extract out by corresponding material in the specific time by rotary valve to specify Bed, realize static catalyst and simulate the effect flowed up, and storeroom contact is sufficiently, reaction efficiency is high.Countercurrently Simulation moving bed reactor continuously carries out solid acid alkylating reaction and catalyst regeneration, does not need to stop work.Meanwhile catalyst Without practical flowing in reactor, avoids and exist in catalyst loss, line clogging caused by catalyst abrasion and product The problems such as fine powder.Moreover, the setting of gas-liquid separator and fractionating column, the circulation that can be efficiently separated product, realize material, mention The utilization rate of high raw material.

The method of raw material reaction and catalyst regeneration for solid acid alkylating of the invention, is moved using adverse current simulation Bed realizes solid acid alkylating reaction, product extraction, catalyst mitigation regeneration and the regenerated continuous and stable fortune of catalyst depth Row substantially increases the economy of device operation operation.It is simple that this method had both inherited common fixed bed reactors technological operation, The few advantage of catalyst abrasion, and taken into account the feature that moving-burden bed reactor catalyst utilization is high, and frequent regeneration operation is easy. Raw material reaction and catalyst are mitigated regeneration to be isolated with catalyst depth regeneration, can effectively avoid deep regenerative medium from entering anti- System is answered, reduces reaction yield, while also can flexibly be operated in two regions of high temperature and low temperature, and does not have to stop work, is prolonged The service life of operation cycle and device is grown.

Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.

Detailed description of the invention

Fig. 1 is a kind of embodiment of the Simulation moving bed reaction and regenerating unit for solid acid alkylating of the invention Structural schematic diagram.

Fig. 2 is another embodiment party of the Simulation moving bed reaction and regenerating unit for solid acid alkylating of the invention The structural schematic diagram of formula.

Description of symbols

1-3 fixed bed reactors；4 rotary valves；5 alkane storage tanks；6 alkene storage tanks；7 mitigate regeneration wet tank；8 regeneration gases Body storage tank；9 alkylate oil storage tanks；10 gas-liquid separators；11 fractionating columns；12 material mixers；13 Gas-liquid mixing valves；14 regeneration gases Body heater；15-20,52-55 valve；51 grids；56 deep regenerative wet tanks；57 cooling heat exchangers.

Specific embodiment

Below in conjunction with Fig. 1-2, detailed description of the preferred embodiments.It should be understood that this place is retouched The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.

In a first aspect, the present invention provides a kind of Simulation moving bed reaction for solid acid alkylating and regenerating unit, Described device includes raw material and product area, regeneration feed area, rotary valve 4 and adverse current simulation moving bed reactor, in rotary valve 4 Under control, raw material imports in adverse current simulation moving bed reactor to be alkylated with the raw material in product area to react, and adverse current simulation moves The alkylation reaction product generated in dynamic bed reactor is back to raw material and product area, the catalyst regeneration medium in regeneration feed area It imports in adverse current simulation moving bed reactor and catalyst is regenerated, in adverse current simulation moving bed reactor after catalyst regeneration Material be back to regeneration feed area.

It is solid in order to preferably realize in Simulation moving bed reaction and regenerating unit for solid acid alkylating of the invention The reaction of body acid alkylation, product extraction, catalyst mitigate regeneration and the regenerated continuous and stable operation of catalyst depth, without Catalyst is removed into adverse current simulation moving bed reactor, under preferable case, by the position of feed inlet and outlet, adverse current Simulation moving bed is anti- Device is answered to include conversion zone, oil-producing section, mitigate regenerator section, breeze way and deep regenerative section, wherein conversion zone, mitigates again oil-producing section Raw section and breeze way have m fixed bed reactors altogether, and deep regenerative section has n fixed bed reactors, conversion zone, oil-producing Section, mitigation regenerator section and breeze way and deep regenerative section are completely isolated, and breeze way will mitigate regenerator section and conversion zone separates, each Fixed bed reactors include at least one catalyst bed, are separated from each other between catalyst bed；Wherein, m >=1, n >=1, and work as It when m > 1, is serially connected between m fixed bed reactors, as n > 1, is serially connected between n fixed bed reactors.

In Simulation moving bed reaction and regenerating unit for solid acid alkylating of the invention, for fixed bed reactors There is no particular limitation, can be various fixed bed reactors commonly used in the art, under preferable case, fixed bed reactors it is interior Diameter is 1-20m, further preferably 2-10m, it is further preferred that the internal diameter of each fixed bed reactors is identical；Fixed bed Reactor includes at least one catalyst bed, and the highly preferred of each catalyst bed is 0.5-3m, further preferably 0.8- 1.5m, it is further preferred that the height of each catalyst bed is identical；Catalyst bed in fixed bed reactors preferably by Grid separates, and the highly preferred of grid is 0.03-0.5m, further preferably 0.05-0.3m.Grid is in addition to that can support catalyst Effect outside, also have and external logistics imported into adverse current simulation moving bed reactor and will be in adverse current simulation moving bed reactor The effect of logistics extraction.

It will be understood by those skilled in the art that the Simulation moving bed reaction for solid acid alkylating of the invention with In regenerating unit, the m fixed bed reactors are for the reaction of raw material and the mitigation regeneration of catalyst, the n fixed bed The mutually isolated deep regenerative for catalyst, the conversion zone, oil-producing between reactor and the m fixed bed reactors Section, mitigation regenerator section and breeze way include at least one catalyst bed, and the deep regenerative section includes that at least one fixed bed is anti- Answer device.Over time, it carries out raw material reaction and catalyst mitigates regenerated fixed bed reactors and progress catalyst is deep Regenerated fixed bed reactors echelon is spent to switch over.Pipeline and valve 15-20,52- are provided between each fixed bed reactors 55, by the opening and closing of control valve 15-20,52-55, realize that carrying out raw material reaction and catalyst mitigates between regenerated reactor Be connected in series, and realize carry out the regenerated reactor of catalyst depth between be connected in series, and realize carry out raw material reaction and Catalyst mitigates regenerated reactor and the progress regenerated reactor of catalyst depth is completely isolated.

Simulation moving bed reaction for solid acid alkylating of the invention under preferable case, is rotated with regenerating unit Valve 4 includes conduit valve, channel valve and rotor plate, the pipeline phase of conduit valve and the material for importing and extracting out fixed bed reactors Connection, channel valve is connected with each catalyst bed of fixed bed reactors, rotor plate be used to import specific material or Extract some specified catalyst bed out.Under preferable case, the pipeline being connected with conduit valve imports and extraction fixed bed reaction The material of device is at least 4 strands, and when afore-mentioned materials are only 4 strands, 4 strands of materials are respectively raw material (the i.e. liquid of alkane and alkene Body mixture), alkylation reaction product (i.e. containing the liquid mixture of alkylate oil), catalyst mitigate regenerating medium and catalysis Material (i.e. catalyst mitigates the flushing liquor after regeneration) after agent regeneration, when afore-mentioned materials are more than 4 strands, remaining material may be used also Think catalyst depth regenerating medium.Channel valve can pass through the lattice in each catalyst bed of pipeline and fixed bed reactors Grid 51 are connected.By the periodic rotary of rotor plate timing, it may be implemented to import each stock material or to extract some out specified Catalyst bed.

It will be understood by those skilled in the art that rotary valve 4 is to be connected to raw material, alkylation reaction product, catalyst to delay With after regenerating medium and catalyst regeneration material and each catalyst bed of reactor key equipment, within the specific time Corresponding material is imported to specified catalyst bed, or extracts material out from specified catalyst bed, realization is still in anti- Answer what the catalyst in device simulated to move up.It is realized by rotary valve 4 and each stock logistics is imported or extracted out some catalyst bed Layer.

In Simulation moving bed reaction and regenerating unit for solid acid alkylating of the invention, for being connected with conduit valve Inner diameter size, communicating passage valve and the fixed bed reactors of the pipeline of the logical material for importing and extracting out fixed bed reactors The inner diameter size of pipeline of catalyst bed there is no particular limitation, can be respectively the interior of corresponding pipeline commonly used in the art Diameter size, under preferable case, be connected with conduit valve for importing raw material, extraction alkylation reaction product, importing catalyst The internal diameter for mitigating regenerating medium and extracting the pipeline of the material after catalyst regeneration out is 10-800mm, is connected with conduit valve The internal diameter of pipeline for importing catalyst depth regenerating medium is 60-600mm, and communicating passage valve and fixed bed reactors are urged The internal diameter of the pipeline of agent bed is 20-800mm.For the diameter of rotary valve 4, there is no particular limitation, can be normal for this field Various diameters, such as can be 0.3-20m.Under preferable case, according to the scale of adverse current simulation moving bed reactor, setting Multiple 4 co- controlling materials of rotary valve import or extraction catalyst bed.

In Simulation moving bed reaction and regenerating unit for solid acid alkylating of the invention, under preferable case, raw material It include alkane storage tank 5, alkene storage tank 6, material mixer 12, alkylate oil storage tank 7 and fractionating column 11, alkane storage tank with product area 5 and alkene storage tank 6 in material through material mixer 12 mixing after by rotary valve 4 import adverse current simulation moving bed reactor, The alkylation reaction product generated in adverse current simulation moving bed reactor imports fractionating column 11 for separating alkyl by rotary valve 4 Carburetion and alkane, isolated alkylate oil and alkane are back to alkylate oil storage tank 9 and alkane storage tank 5 respectively, realize alkane Hydrocarbon circulation is separated with product.

Simulation moving bed reaction for solid acid alkylating of the invention and the alkane in regenerating unit, in alkane storage tank 5 Hydrocarbon is preferably isoparaffin, further preferably iso-butane；Alkene in alkene storage tank 6 is preferably C₃-C₅Alkene, it is further excellent It is selected as butylene.

Simulation moving bed reaction for solid acid alkylating of the invention does not have fractionating column 11 with regenerating unit It is special to limit, it can be various fractionating columns commonly used in the art, such as fractionating column 11 can be rectifying column, can install in tower Tower tray can also load filler.Under preferable case, the diameter of fractionating column 11 is 0.1-15m, and a height of 1-100m is filled with 0.3- The filler of 90m high.Filler is preferably Raschig ring.

In Simulation moving bed reaction and regenerating unit for solid acid alkylating of the invention, one kind according to the present invention Preferred embodiment, as shown in Figure 1, regeneration feed area includes mitigating regeneration wet tank 7, regeneration gas storage tank 8, gas-liquid mixed Valve 13, regeneration gas heaters 14 and gas-liquid separator 10.Mitigate the material in regeneration wet tank 7 and regeneration gas storage tank 8 It is imported in adverse current simulation moving bed reactor after the mixing of Gas-liquid mixing valve 13 by rotary valve 4 and catalyst is mitigated again Raw, catalyst mitigates the material after regeneration and is used by the importing gas-liquid separator 10 of rotary valve 4 in adverse current simulation moving bed reactor In separation regeneration gas and regenerated liquid body is mitigated, isolated regeneration gas and mitigation regenerated liquid body are back to regeneration gas respectively Body storage tank 8 and regenerated liquid body storage tank 7 is mitigated, the regeneration gas in regeneration gas storage tank 8 is after the heating of regeneration gas heaters 14 It is imported in adverse current simulation moving bed reactor by rotary valve 4 and deep regenerative is carried out to catalyst.

It is according to the present invention another in Simulation moving bed reaction and regenerating unit for solid acid alkylating of the invention Kind preferred embodiment, as shown in Fig. 2, regeneration feed area includes mitigating regeneration wet tank 7, regeneration gas storage tank 8, regeneration gas Body heater 14, deep regenerative wet tank 56, cooling heat exchanger 57 and gas-liquid separator 10.It mitigates in regeneration wet tank 7 Material imported in adverse current simulation moving bed reactor by rotary valve 4 mitigation regeneration carried out to catalyst, adverse current simulation movement Bed catalyst reactor, which mitigates the material after regeneration and imported by rotary valve 4, mitigates regeneration wet tank 7, regeneration gas storage tank Regeneration gas in 8 mixes with the material in deep regenerative wet tank 56 after the heating of regeneration gas heaters 14 and will mixing Object imports in adverse current simulation moving bed reactor and carries out deep regenerative, catalyst in adverse current simulation moving bed reactor to catalyst Material after deep regenerative imports gas-liquid separator 10 for separating regeneration gas and depth again after the cooling of cooling heat exchanger 57 Raw liquid, isolated regeneration gas and deep regenerative liquid are back to regeneration gas storage tank 8 and deep regenerative liquid respectively Storage tank 56.

In Simulation moving bed reaction and regenerating unit for solid acid alkylating of the invention, it is preferable that each solid Special valve is arranged in fixed bed reactor head, and controlling depth regenerating medium enters deep regenerative section.

In Simulation moving bed reaction and regenerating unit for solid acid alkylating of the invention, for gas-liquid separator 10 There is no particular limitation, can be various gas-liquid separators commonly used in the art, under preferable case, the diameter of gas-liquid separator 10 For 0.3-10m, a height of 0.5-10m.According to a preferred embodiment of the present invention, as shown in Figure 1, gas-liquid separator 10 will Catalyst mitigates the material after regeneration (mitigation i.e. containing regeneration gas regenerates liquid) and carries out gas-liquid separation, realizes regeneration gas With recycling for mitigation regenerated liquid body.Another preferred embodiment according to the present invention, as shown in Fig. 2, gas-liquid separation Material (i.e. the deep regenerative liquid containing regeneration gas) after catalyst depth regeneration after cooling down is carried out gas-liquid by device 10 Separation, realization regeneration gas and deep regenerative liquid recycle.

In Simulation moving bed reaction and regenerating unit for solid acid alkylating of the invention, by mitigating regenerator section Breeze way is set between conversion zone, regenerator section will be mitigated and conversion zone separates, realizes catalyst and mitigates the flushing after regeneration Liquid is isolated with reaction raw materials, is avoided catalyst and is mitigated contact of the hydrogeneous flushing liquor with reaction raw materials after regeneration, drops significantly Low fractionation cost；By the way that deep regenerative section is arranged, the gas phase regeneration of decaying catalyst is realized.

Simulation moving bed reaction for solid acid alkylating of the invention can be used for needing comprising multiply with regenerating unit The continuous production of material disengaging chemical process, such as aromatics absorption separation process, syrup preparation process and solid acid alkylating are anti- Answer process etc..It preferably, is that solid acid alkylating reacts with regenerating unit for the Simulation moving bed reaction of solid acid alkylating Device.

Second aspect, the present invention provides a kind of sides of raw material reaction and catalyst regeneration for solid acid alkylating Method, raw material reaction and catalyst regeneration carry out in adverse current simulation moving bed reactor, and adverse current simulation moving bed reactor includes At least two fixed bed reactors, each fixed bed reactors include at least one catalyst bed, this method comprises:

(1) at the T moment, the liquid mixture of alkane and alkene from raw material Yu product area is imported by rotary valve 4 Reaction is alkylated in the M bed of adverse current simulation moving bed reactor, conversion zone includes i bed；

(2) in synchronization T, from the M+i bed of adverse current simulation moving bed reactor by the liquid containing alkylate oil Mixture extraction, and raw material and product area are back to by rotary valve 4, oil-producing section includes j bed；

(3) in synchronization T, it is inverse that regenerating medium importing will be mitigated from the catalyst in regeneration feed area by rotary valve 4 Mitigation regeneration is carried out to catalyst in the M+i+j bed of flow field simulation moving-burden bed reactor, mitigating regenerator section includes k bed；

(4) in synchronization T, catalyst is mitigated from the M+i+j+k bed of adverse current simulation moving bed reactor and is regenerated Material extraction afterwards, and regeneration feed area is back to by rotary valve 4, breeze way includes q bed；

The raw material reaction for solid acid alkylating of the invention in the method for catalyst regeneration, conversion zone, oil-producing section, The temperature for mitigating regenerator section and breeze way is preferably 30-150 DEG C, further preferably 40-120 DEG C, more preferably 50-100 DEG C； Pressure is preferably 0.5-10MPa, further preferably 1-6MPa.

Raw material for solid acid alkylating of the invention reacts in the method with catalyst regeneration, the liquid of alkane and alkene The molar ratio of alkane and alkene can fluctuate in a wider scope in body mixture, under preferable case, the liquid of alkane and alkene The molar ratio of alkene and alkane is 1:10-1000, further preferably 1:15-200, more preferably 1:20- in body mixture 100。

Raw material for solid acid alkylating of the invention reacts in the method with catalyst regeneration, under preferable case, instead The liquid phase void tower linear speed for answering section is 0.01-0.5m/s, further preferably 0.02-0.2m/s.Alkane and alkene in conversion zone Molar ratio can fluctuate in a wider scope, and under preferable case, the molar ratio of alkane and alkene is 100-1500 in conversion zone: 1, preferably 300-800:1.

Raw material reaction for solid acid alkylating of the invention under preferable case, is produced with the method for catalyst regeneration The void tower linear speed of oily section is 0.005-0.3m/s, further preferably 0.008-0.15m/s.

Raw material reaction for solid acid alkylating of the invention under preferable case, is walked with the method for catalyst regeneration It suddenly include that will contain in such a way that rotary valve 4 is back to raw material with product area by the liquid mixture containing alkylate oil in (2) There is the liquid mixture of alkylate oil to import fractionating column 11 by rotary valve 4, separates alkylate oil and alkane, and will be isolated Alkylate oil and alkane be back to alkylate oil storage tank 9 and alkane storage tank 5 respectively.

Raw material reaction for solid acid alkylating of the invention under preferable case, is urged with the method for catalyst regeneration It is to mitigate regeneration liquid or regenerate liquid for the mitigation dissolved with regeneration gas that agent, which mitigates regenerating medium, further preferably Mitigation dissolved with regeneration gas regenerates liquid.It is the mitigation regenerated liquid dissolved with regeneration gas when catalyst mitigates regenerating medium When body, the mass fraction that catalyst mitigates regeneration gas in regenerating medium is preferably 0.01-1%, further preferably 0.05- 0.5%.For mitigation regeneration liquid and regeneration gas, there is no particular limitation, can regenerate for various mitigations commonly used in the art Liquid and regeneration gas, under preferable case, it is C3-C11 that mitigate regeneration liquid, which be carbon atom number, further preferably C4-C9, more The preferably hydrocarbons of C4-C8；Regeneration gas is hydrogen.

Raw material for solid acid alkylating of the invention reacts in the method with catalyst regeneration, and according to the present invention one Kind preferred embodiment, as shown in Figure 1, being dissolved with regeneration gas when the catalyst in step (3) mitigates regenerating medium When mitigating regeneration liquid, in step (4), catalyst is mitigated into the material after regeneration, regeneration feed area is back to by rotary valve 4 Mode may include: by catalyst mitigate regeneration after material by rotary valve 4 import gas-liquid separator 10 in carry out gas-liquid Separation obtains regeneration gas and mitigates regenerated liquid body, and isolated regeneration gas and mitigation regenerated liquid body are returned respectively To regeneration gas storage tank 8 and mitigate regenerated liquid body storage tank 7.Another preferred embodiment according to the present invention, such as Fig. 2 institute Show, when it is to mitigate regeneration liquid that the catalyst in step (3), which mitigates regenerating medium, in step (4), catalyst is mitigated and is regenerated Material afterwards may include: to lead to the material that catalyst mitigates after regeneration in such a way that rotary valve 4 is back to regeneration feed area It crosses rotary valve 4 and imports and mitigate regeneration wet tank 7.

Raw material reaction for solid acid alkylating of the invention under preferable case, is delayed with the method for catalyst regeneration Liquid phase void tower linear speed with regenerator section is 0.01-0.5m/s, further preferably 0.02-0.2m/s.

Raw material reaction for solid acid alkylating of the invention under preferable case, is delayed with the method for catalyst regeneration The void tower linear speed for rushing section is 0.005-0.3m/s, further preferably 0.008-0.15m/s.

Raw material for solid acid alkylating of the invention reacts in the method with catalyst regeneration, deep under preferable case Spend regenerated condition include: temperature be 100-600 DEG C, further preferably 150-400 DEG C；Pressure is 0.1-10MPa, further Preferably 0.5-5MPa.

Raw material reaction for solid acid alkylating of the invention under preferable case, is urged with the method for catalyst regeneration Agent deep regenerative medium is regeneration gas or for the deep regenerative liquid dissolved with regeneration gas, is further preferably regenerated Gas.When catalyst depth regenerating medium is the deep regenerative liquid dissolved with regeneration gas, catalyst depth regenerating medium The mass fraction of middle regeneration gas is preferably 0.01-10%, further preferably 0.1-5%.For deep regenerative liquid and again There is no particular limitation for angry body, can be various deep regenerative liquid and regeneration gas commonly used in the art, under preferable case, Deep regenerative liquid is the lower carbon number hydrocarbons that carbon atom number is C3-C8, and regeneration gas is hydrogen.

Raw material for solid acid alkylating of the invention reacts in the method with catalyst regeneration, and according to the present invention one Kind preferred embodiment, as shown in Fig. 2, when deep regenerative medium is the deep regenerative liquid dissolved with regeneration gas, it will Catalyst depth regeneration after material through cooling heat exchanger 57 cooling after import gas-liquid separator 10 for separate regeneration gas and Deep regenerative liquid, and isolated regeneration gas and deep regenerative liquid are back to regeneration gas storage tank 8 and depth respectively Degree regeneration wet tank 56；It is further preferred that the material after catalyst depth regeneration is cooled to 30- through cooling heat exchanger 57 150℃。

Raw material for solid acid alkylating of the invention reacts in the method with catalyst regeneration, deep under preferable case Spending regenerating medium in the apparent velocity of deep regenerative section is 0.001-1m/s, further preferably 0.02-0.5m/s.

Raw material for solid acid alkylating of the invention reacts in the method with catalyst regeneration, this method further include: After catalyst completes deep regenerative, the temperature of deep regenerative section is reduced to conversion zone, oil-producing section, mitigates regenerator section and breeze way Required temperature.For the temperature of deep regenerative section is reduced to conversion zone, oil-producing section, is mitigated needed for regenerator section and breeze way There is no particular limitation for the method for temperature, as long as under preferable case, being passed through low the temperature was then adjusted to aforementioned suitable temperature The temperature of deep regenerative section is reduced to conversion zone, oil-producing section, mitigation regenerator section to ease up by the alkane liquid in the reaction raw materials of temperature Temperature needed for rushing section.

Raw material reaction for solid acid alkylating of the invention under preferable case, divides with the method for catalyst regeneration Evaporate tower 11 tower top temperature be 50-300 DEG C, further preferably 80-200 DEG C, pressure 0.01-3MPa, further preferably 0.05-1MPa, void tower linear speed of the liquid mixture containing alkylate oil in fractionating column 11 is preferably 0.05-3m/s, into one Step is preferably 0.1-2m/s.

Raw material for solid acid alkylating of the invention reacts in the method with catalyst regeneration, under preferable case, gas The temperature of liquid/gas separator 10 be 20-100 DEG C, further preferably 40-80 DEG C, pressure 0.05-3MPa, further preferably 0.1-2MPa。

Raw material reaction for solid acid alkylating of the invention does not have catalyst with the method for catalyst regeneration It is special to limit, it can be various catalyst commonly used in the art, under preferable case, the active component of catalyst includes that load has The molecular sieve of metal, molecular sieve is one of FAU structural zeolite, BETA structural zeolite and MFI structure zeolite or a variety of, into one Step is preferably FAU structural zeolite and BETA structural zeolite, and metal is preferably one of Fe, Co, Ni, Pd and Pt or a variety of, into One step is preferably one of Co, Ni and Pt or a variety of.The average grain diameter of catalyst is preferably 0.1-10mm, further preferably 0.5-5mm。

Raw material for solid acid alkylating of the invention reacts in the method with catalyst regeneration, those skilled in the art It should be understood that the liquid mixture of alkane and alkene imports adverse current simulation moving bed reactor, and some is fixed in step (1) It is contacted in the M bed of bed reactor with catalyst and is alkylated reaction, M bed is in conversion zone at this time, and conversion zone needs I bed (i >=1) is wanted to complete jointly；In step (2), the liquid mixture containing alkylate oil is back to raw material and product area, M+i bed is in oil-producing section at this time, and oil-producing section needs j bed (j >=1) to complete jointly；In step (3), catalyst mitigates Mitigation regeneration is carried out to catalyst in the M+i+j bed of regenerating medium importing adverse current simulation moving bed reactor, at this time M+i + j bed, which is in, mitigates regenerator section, mitigates regenerator section and k bed (k >=1) is needed to complete jointly；In step (4), catalyst mitigates Material after regeneration is back to regeneration feed area, and M+i+j+k bed is in breeze way at this time, and breeze way needs q bed (q >=1) common to complete.

Raw material reaction for solid acid alkylating of the invention is with the method for catalyst regeneration, and the time, t was known as stepping The length of time, t are codetermined by catalyst reaction rate and feed throughput, preferably 30-500s.Each stepping time knot Shu Shi, rotary valve 4 rotates a certain angle, and (rotation angle is equal to 360 ° of numbers divided by catalyst bed in fixed bed reactors Amount), so that each stock logistics is moved down a bed, realizes the periodical transition of material mouth.

It will be understood by those skilled in the art that 360 ° divided by catalyst bed quantity be raw material react and urge When agent regenerates, the quantity of catalyst bed in the fixed bed reactors that are connected with the channel valve of rotary valve 4.According to the present invention A kind of preferred embodiment, the materials of the fixed bed reactors for importing and extracting out by rotary valve 4 is that raw material, alkylation are anti- Product, catalyst is answered to mitigate material and catalyst depth regenerating medium after regenerating medium, catalyst regeneration, at this point, rotary valve 4 Channel valve be connected with all catalyst beds of adverse current simulation moving bed reactor, then 360 ° divided by catalyst bed Quantity be adverse current simulation moving bed reactor all catalyst beds quantity；It is according to the present invention another preferred Embodiment, the material for the fixed bed reactors for importing and extracting out by rotary valve 4 are raw material, alkylation reaction product, catalysis Agent mitigates the material after regenerating medium and catalyst regeneration, at this point, the channel valve of rotary valve 4 and adverse current simulation moving bed reactor In for raw material reaction mitigate regenerated fixed bed reactors with catalyst catalyst bed be connected, then 360 ° divided by urge The quantity of agent bed is anti-for raw material reaction and the regenerated fixed bed of catalyst mitigation in adverse current simulation moving bed reactor Answer the quantity of the catalyst bed of device.

Raw material for solid acid alkylating of the invention reacts in the method with catalyst regeneration, in step (5), every warp After crossing time t, the conversion zone, oil-producing section, mitigate regenerator section and breeze way move down a bed it is to be understood that through After crossing time t, the liquid mixture of alkane and alkene stops importing from M bed, is changed to import from M+1 bed, conversion zone Move down a bed；Liquid mixture containing alkylate oil stops extracting out from M+i bed, is changed to from M+i+1 Layer extraction, oil-producing section move down a bed；Catalyst mitigate regenerating medium stop from M+i+j bed import, be changed to from M+i+j+1 bed imports, and mitigates regenerator section and moves down a bed；Catalyst, which mitigates the material after regeneration, to be stopped from M+ The extraction of i+j+k bed is changed to extract out from M+i+j+k+1 bed, and breeze way moves down a bed；At this point, adverse current is simulated M+i+j+k+q catalyst bed is shared in moving-burden bed reactor carries out raw material reaction and catalyst mitigation regenerative process, remaining Bed and these beds are completely isolated, form deep regenerative section and carry out deep regenerative to catalyst, have regenerated to catalyst depth Finish, the liquid mixture of alkane and alkene stops importing from cannot continue catalyst and mitigate regenerated reactor, be changed to from Reactor after deep regenerative imports, and the reactor for importing material becomes raw material reaction and catalyst mitigation regeneration tandem reactor A part, continue the raw material being made of M+i+j+k+q catalyst bed reaction and catalyst mitigate regenerative process, no It can continue the regenerated reactor of catalyst mitigation and enter deep regenerative section, deep regenerative is carried out to catalyst.To catalyst When carrying out deep regenerative, depth can be passed through again by the valve being arranged at the top of rotary valve 4 or adverse current simulation moving bed reactor Raw medium carries out deep regenerative.Catalyst inactivation in fixed bed reactors can pass through the production of detection solid acid alkylating reaction Object detects, if containing alkene in product, illustrates catalyst inactivation and cannot mitigate regeneration.

Raw material for solid acid alkylating of the invention reacts in the method with catalyst regeneration, those skilled in the art It should be understood that catalyst bed corresponding to conversion zone, oil-producing section, mitigation regenerator section, breeze way and deep regenerative section is not It is fixed, but is converted by stepping time t, the invariable number of every section of catalyst bed for being included when transformation.

Embodiment

The present invention is further illustrated for embodiment below, but is not intended to limit the present invention.

In following embodiment and comparative example, catalyst is the FAU structural zeolite spheric catalyst for loading Pt metal, activity gold The content for belonging to Pt is 0.3wt%, average grain diameter 1.5mm.Preparation method is raw using Sinopec catalyst Co., Ltd The NaY type molecular sieve of the FAU structure of production, is loaded to Pt metal on molecular sieve by ion exchange；Then by molecular sieve and oxygen Change aluminium to be uniformly mixed with the weight ratio of 70:30, in roller forming equipment top water spray side rolling balling, be made after drying, roasting ?.

The quality of oil product usually uses the uprising performance characterization of oil product, and the uprising performance of different oil products usually uses octane number table Show.The anti-knock properties of isooctane (2,2,4- trimethylpentanes, TMP) are preferable, and octane number is given as 100.The anti-knock properties of normal heptane are poor, It is given as 0.The measurement of oil product octane number is using isooctane and normal heptane as ideal fuels, by standard conditions, in laboratory standard It is carried out on Single Cylinder Gasoline Engine with method of comparison.The ratio of adjustment criteria fuel composition, make ideal fuels generate knock intensity with Test oil condition is same, and percentage by volume shared by isooctane is exactly to test the octane number of oil product in ideal fuels at this time.Oil product is pungent The measuring method of alkane value usually has two kinds of organon (RON) and motor method (MON).

The determination condition of RON includes: that engine speed is 600r/min, and intake air temperature is 25 DEG C.It reflects automobile in city The anti-knock characteristic of gasoline of area at a slow speed when driving.To same gasoline, research octane number (RON) about 0-15 higher than motor octane number Unit.

The determination condition of MON includes: that engine speed is 900r/min, and intake air temperature is 149 DEG C.It reflects automobile in height The anti-knock characteristic of gasoline of speed, heavy load conditions downward driving.

C8 component is mainly by isoparaffin dimethylhexane (DMH) and trimethylpentane in alkylation reaction product oil (TMP) it forms, the ratio of TMP/DMH shows that more greatly the octane number of oil product is higher.

Embodiment 1

The present embodiment is used to illustrate that a kind of Simulation moving bed reaction for solid acid alkylating of the invention to be filled with regeneration It sets and a kind of raw material for solid acid alkylating reacts and the method for catalyst regeneration.

As shown in Figure 1, it includes raw material that the Simulation moving bed for solid acid alkylating of the invention, which is reacted with regenerating unit, With product area, regeneration feed area, rotary valve 4 and adverse current simulation moving bed reactor, under the control of rotary valve 4, raw material and production The raw material in object area imports in adverse current simulation moving bed reactor and is alkylated reaction, generates in adverse current simulation moving bed reactor Alkylation reaction product be back to raw material and product area, the catalyst regeneration medium in regeneration feed area imports adverse current simulation movement Catalyst is regenerated in bed reactor, the material in adverse current simulation moving bed reactor after catalyst regeneration is back to regeneration Material area.

Wherein, adverse current simulation moving bed reactor is the combination of 3 fixed bed reactors 1-3, including conversion zone, oil-producing Section mitigates regenerator section, breeze way and deep regenerative section, wherein conversion zone, oil-producing section mitigate regenerator section and breeze way in 2 strings In the fixed bed reactors of connection, another fixed bed that deep regenerative section is in completely isolated with the two fixed bed reactors is anti- It answers in device, breeze way will mitigate regenerator section and conversion zone separates, and 3 fixed bed reactors are that diameter is equal urges including 3 The fixed bed reactors of agent bed, the internal diameter of each fixed bed reactors are 200mm, a height of 3.5m, each catalyst bed Height be 1m, separated with grid 51 between catalyst bed, height of grid 50mm.Catalyst in each catalyst bed Loadings be 20kg, filling height be 1m.Pipeline and valve 15-20 are set between fixed bed reactors 1-3, pass through control valve Door 15-20 opening and closing, realize fixed bed reactors 1-3 between two-by-two series connection and with another fixed bed reactors it is completely isolated with And the switching between conversion zone, oil-producing section, mitigation regenerator section, breeze way and deep regenerative section.

Wherein, raw material and product area include alkane storage tank 5, alkene storage tank 6, material mixer 12, alkylate oil storage tank 9 and The diameter of fractionating column 11, fractionating column is 200mm, and a height of 2m is filled with the Raschig ring filler of 1.5m high.It is different in alkane storage tank 5 It is anti-that 1- butylene in butane and alkene storage tank 6 imports adverse current Simulation moving bed by rotary valve 4 after the mixing of material mixer 12 Device is answered, the alkylation reaction product generated in adverse current simulation moving bed reactor imports fractionating column 11 for dividing by rotary valve 4 From alkylate oil and alkane, isolated alkylate oil and alkane are back to alkylate oil storage tank 9 and alkane storage tank 5 respectively.

Wherein, regeneration feed area includes mitigating regeneration wet tank 7, regeneration gas storage tank 8, Gas-liquid mixing valve 13, regeneration Gas heater 14 and gas-liquid separator 10, the diameter of gas-liquid separator 10 are 500mm, a height of 1m.Mitigate regeneration wet tank 7 In iso-butane and regeneration gas storage tank 8 in hydrogen through Gas-liquid mixing valve 13 mixing after by rotary valve 4 import adverse current simulate Mitigation regeneration is carried out to catalyst in moving-burden bed reactor, catalyst mitigates the object after regeneration in adverse current simulation moving bed reactor Material imports gas-liquid separator 10 for separating hydrogen and iso-butane, isolated hydrogen and iso-butane difference by rotary valve 4 It is back to regeneration gas storage tank 8 and mitigates regenerated liquid body storage tank 7, the hydrogen in regeneration gas storage tank 8 is through regeneration gas heaters It is imported in adverse current simulation moving bed reactor after 14 heating by rotary valve 4 and deep regenerative is carried out to catalyst.

Wherein, rotary valve 4 includes conduit valve, channel valve and rotor plate, conduit valve be used to import and to extract fixed bed out anti- The pipeline of the material of device is answered to be connected, channel valve is connected by pipeline with each catalyst bed of fixed bed reactors 1-3, Rotor plate is used to import or extract out some specified catalyst bed for specific material.All 9 of fixed bed reactors 1-3 Catalyst bed is connected with the channel valve of rotary valve 4, the conduit valve of rotary valve 4 by pipeline respectively with material mixer 12, regeneration wet tank 7, regeneration gas storage tank 8, gas-liquid separator 10 is mitigated to be connected with fractionating column 11.By channel valve with urge The internal diameter for the pipeline that agent bed is connected is 50mm, is connected between conduit valve and material mixer 12 and gas-liquid separator 10 The internal diameter of pipeline is that the internal diameter of the pipeline connected between 25mm, conduit valve and fractionating column 11 and mitigation regenerated liquid body storage tank 7 is 20mm, the internal diameter for importing the pipeline that catalyst mitigates regenerating medium that conduit valve is connect with regeneration gas storage tank 8 is 25mm, The internal diameter for the pipeline for importing catalyst depth regenerating medium that conduit valve is connect with regeneration gas storage tank 8 is 100mm, rotation The diameter of valve 4 is 1m.It is realized by rotary valve 4 and each stock material is imported or extracted out some catalyst bed.

Specifically, it is mutually connected in series, forms raw material reaction and urges in moment T, fixed bed reactors 1 and fixed bed reactors 2 Agent mitigates regeneration reactor, and fixed bed reactors 3 are isolated with fixed bed reactors 1 and fixed bed reactors 2, becomes depth Regeneration reactor.25:1 imports material mixer to the 1- butylene in iso-butane and alkene storage tank 6 in alkane storage tank 5 in molar ratio 12, mixed mixture enters fixed bed reactors 1 from the grid 51 of the top bed of fixed bed reactors 1 by rotary valve 4, It is contacted with catalyst and is alkylated reaction, the total feed of mixture is 125kg/h, at this time the top bed of fixed bed reactors 1 Layer is in conversion zone, and altogether there are two bed anabolic reaction section, alkane alkene molar ratio is 600:1 in conversion zone, and material is in conversion zone Liquid phase void tower linear speed be 0.035m/s.Meanwhile containing alkylate oil from the extraction of the grid 51 of the bottom layer of fixed bed reactors 1 Liquid mixture, and fractionating column 11 is imported by rotary valve 4 and separates alkylate oil and iso-butane, the tower top temperature of fractionating column 11 It is 90 DEG C, pressure 0.1MPa, void tower linear speed of the liquid mixture containing alkylate oil in fractionating column 11 is 1.5m/s, and Isolated alkylate oil and alkane are back to alkylate oil storage tank 9 and alkane storage tank 5 respectively.Fixed bed reactors at this time 1 bottom layer is in oil-producing section, and the void tower linear speed of the fluid of oil-producing section is 0.012m/s, Duan Youyi bed composition of oil-producing.Together When, shape after the iso-butane mitigated in regeneration wet tank 7 is mixed with the hydrogen in regeneration gas storage tank 8 through Gas-liquid mixing valve 13 Regenerating medium is mitigated at catalyst, the mass fraction that catalyst mitigates regeneration gas in regenerating medium is 0.2%, passes through rotary valve 4 import the top bed of fixed bed reactors 2, carry out mitigation regeneration to the catalyst in the bed.Fixed bed reactors 2 at this time It pushes up bed and is in and mitigate regenerator section, there are two beds to carry out mitigation regeneration altogether, and the void tower linear speed for mitigating fluid in regenerator section is 0.16m/s.Meanwhile the flushing liquor after regeneration is mitigated from the bottom layer of fixed bed reactors 2 extraction catalyst, and pass through rotary valve 4, which import gas-liquid separator 10, separates hydrogen and iso-butane, and isolated hydrogen and iso-butane are back to regeneration gas storage respectively Tank 8 and mitigation regenerated liquid body storage tank 7.The bottom layer of fixed bed reactors 2 is in breeze way, the void tower of the fluid of breeze way at this time Linear speed is 0.010m/s.Wherein, the temperature of conversion zone, oil-producing section, mitigation regenerator section and breeze way is 80 DEG C, pressure 4MPa. Meanwhile the hydrogen in regeneration gas storage tank 8 is imported by rotary valve 4 after regeneration gas heaters 14 are heated to 260 DEG C and is fixed The top bed of bed reactor 3 carries out deep regenerative to catalyst.The top bed of fixed bed reactors 3 is in deep regenerative at this time Section, three beds of fixed bed reactors 3 are completely in deep regenerative section.Fixed bed reactors 3 are with fixed bed reactors 1 and admittedly Fixed bed reactor 2 is completely isolated, and the temperature of deep regenerative section is 260 DEG C, pressure 3MPa, deep regenerative section high temperature hydrogen Superficial velocity is 0.15m/s.

Stepping time is 70s, and after 70s (i.e. T+70s moment), rotary valve 4 is rotated 40 °, iso-butane and 1- butylene it is mixed It closes object to stop entering from the top bed of fixed bed reactors 1, change by entering from the intermediate bed of fixed bed reactors 1；Contain alkyl The liquid mixture of carburetion stops extracting out from the bottom layer of fixed bed reactors 1, changes by taking out from the top bed of fixed bed reactors 2 Out；Catalyst, which mitigates regenerating medium, to be stopped being entered by the top bed of fixed bed reactors 2, is changed by from fixed bed reactors 2 Between bed enter；Catalyst, which mitigates the flushing liquor after regeneration, to be stopped extracting out from the bottom layer of fixed bed reactors 2, is changed by from fixation The top bed extraction of bed reactor 1；Hydrogen after heated stops entering from the top bed of fixed bed reactors 3, changes by from admittedly The intermediate bed of fixed bed reactor 3 enters.So on circulate, every time circulation when conversion zone, oil-producing section, mitigate regenerator section, be slow Rush the invariable number for the catalyst bed that section and deep regenerative section are included, 6 catalyst beds of fixed bed reactors 1 and 2 It carries out raw material reaction and catalyst mitigates regenerative process, 3 catalyst beds of fixed bed reactors 3 carry out catalyst depth again Raw process.Fixed bed reactors 3 inject 50 DEG C different after 55 hours high temperature regenerations, from the top of fixed bed reactors 3 The temperature of fixed bed reactors 3 is reduced to 80 DEG C by butane.At the 7th day, detect to contain in the product of solid acid alkylating reaction There is alkene, show the catalyst inactivation in fixed bed reactors 1 and regeneration cannot be mitigated, then by the mixed of iso-butane and 1- butylene The top bed that object imports fixed bed reactors 3 is closed, at this point, fixed bed reactors 2 and fixed bed reactors 3 are composed in series mutually original Material reaction and catalyst mitigate regeneration reactor, and fixed bed reactors 1 are separated by with fixed bed reactors 2 and fixed bed reactors 3 From becoming deep regenerative reactor.When the catalyst inactivation in fixed bed reactors 2 and when cannot mitigate regeneration, by iso-butane Fixed bed reactors 1 are imported with the mixture of 1- butylene, so that fixed bed reactors 3 and fixed bed reactors 1 is mutually connected in series, is formed Raw material reaction and catalyst mitigate regeneration reactor, fixed bed reactors 2 and 1 phase of fixed bed reactors 3 and fixed bed reactors Isolation, becomes deep regenerative reactor.It loops back and forth like this, realizes that raw material reaction, catalyst mitigate regeneration and catalyst depth Regenerated continuous operation.

Embodiment 2

As shown in Fig. 2, it includes raw material that the Simulation moving bed for solid acid alkylating of the invention, which is reacted with regenerating unit, With product area, regeneration feed area, rotary valve 4 and adverse current simulation moving bed reactor, under the control of rotary valve 4, raw material and production The raw material in object area imports in adverse current simulation moving bed reactor and is alkylated reaction, generates in adverse current simulation moving bed reactor Alkylation reaction product be back to raw material and product area, the catalyst regeneration medium in regeneration feed area imports adverse current simulation movement Catalyst is regenerated in bed reactor, the material in adverse current simulation moving bed reactor after catalyst regeneration is back to regeneration Material area.

Wherein, adverse current simulation moving bed reactor is the combination of 2 fixed bed reactors 1-2, including conversion zone, oil-producing Section mitigates regenerator section, breeze way and deep regenerative section, wherein conversion zone, oil-producing section, mitigation regenerator section and breeze way are solid at 1 In fixed bed reactor, deep regenerative section is in another fixed bed reactors completely isolated with this fixed bed reactors, Breeze way will mitigate regenerator section and conversion zone and separate, 2 fixed bed reactors be diameter it is equal include 4 catalyst beds Fixed bed reactors, the internal diameters of each fixed bed reactors is 200mm, and the height of a height of 6.5m, each catalyst bed are 1.5m is separated between catalyst bed, height of grid 50mm with grid 51.The filling of catalyst in each catalyst bed Amount is 28kg, and filling height is 1.5m.Be arranged between fixed bed reactors 1 and fixed bed reactors 2 pipeline and valve 15-20, 52-55 realizes that fixed bed reactors 1 and fixed bed reactors 2 are mutually isolated by the opening and closing of control valve 15-20,52-55 Be connected to.Valve is provided at the top of each fixed bed reactors to be connected with regeneration gas storage tank 8 and deep regenerative wet tank 56 It is logical.

Wherein, regeneration feed area include mitigate regeneration wet tank 7, regeneration gas storage tank 8, regeneration gas heaters 14, Deep regenerative wet tank 56, cooling heat exchanger 57 and gas-liquid separator 10, the diameter of gas-liquid separator 10 is 500mm, a height of 1m.Mitigate regeneration wet tank 7 in iso-butane by rotary valve 4 import adverse current simulation moving bed reactor in catalyst into Row mitigates regeneration, and catalyst mitigates the material after regeneration and imported by rotary valve 4 and mitigated again in adverse current simulation moving bed reactor Raw wet tank 7, hydrogen in regeneration gas storage tank 8 after the heating of regeneration gas heaters 14 with deep regenerative wet tank 56 In iso-butane mix merga pass be arranged in the valve at the top of adverse current simulation moving bed reactor by mixture import adverse current simulate Deep regenerative is carried out to catalyst in moving-burden bed reactor, the object in adverse current simulation moving bed reactor after catalyst depth regeneration Material imports gas-liquid separator 10 for separating hydrogen and iso-butane after the cooling of cooling heat exchanger 57, isolated hydrogen and different Butane is back to regeneration gas storage tank 8 and deep regenerative wet tank 56 respectively.

Wherein, rotary valve 4 includes conduit valve, channel valve and rotor plate, conduit valve be used to import and to extract fixed bed out anti- The pipeline of the material of device is answered to be connected, channel valve is connected by pipeline with each catalyst bed of fixed bed reactors 1 or 2 Logical, rotor plate is used to import or extract out some specified catalyst bed for specific material.4 of fixed bed reactors 1 or 2 Catalyst bed is connected with the channel valve of rotary valve 4, the conduit valve of rotary valve 4 by pipeline respectively with material mixer 12, regeneration wet tank 7, fractionating column 11 is mitigated to be connected with regenerated liquid body storage tank 7 is mitigated.By channel valve and catalyst bed phase The internal diameter of the pipeline of connection is the pipeline connected between 50mm, conduit valve and material mixer 12 and mitigation regenerated liquid body storage tank 7 Internal diameter be 25mm, the internal diameter of the pipeline connected between conduit valve and fractionating column 11 is 20mm, and the diameter of rotary valve 4 is 1m.It is logical Rotary valve 4 is crossed to realize the importing of each stock material or extract some catalyst bed out.

Specifically, in moment T, fixed bed reactors 1 form raw material reaction and catalyst mitigates regeneration reactor, fixed bed Reactor 2 is isolated with fixed bed reactors 1, becomes deep regenerative reactor.Iso-butane and alkene storage tank in alkane storage tank 5 100:1 imports material mixer 12 to 1- butylene in 6 in molar ratio, and mixed mixture is anti-from fixed bed by rotary valve 4 Answer device 1 top bed grid 51 enter fixed bed reactors 1, contacted with catalyst and be alkylated reaction, mixture it is total Inlet amount is 140kg/h, and the top bed of fixed bed reactors 1 is in conversion zone at this time, shares a bed anabolic reaction section, instead Answering alkane alkene molar ratio in section is 700:1, and liquid phase void tower linear speed of the material in conversion zone is 0.012m/s.Meanwhile from fixed bed Second bed of reactor 1 extracts the liquid mixture containing alkylate oil out, and imports fractionating column 11 by rotary valve 4 and separate alkane Base carburetion and iso-butane, the tower top temperature of fractionating column 11 are 200 DEG C, pressure 1MPa, the liquid mixture containing alkylate oil Void tower linear speed in fractionating column 11 is 2m/s, and isolated alkylate oil and alkane are back to alkylate oil storage respectively Tank 9 and alkane storage tank 5.The second bed of fixed bed reactors 1 is in oil-producing section at this time, and the void tower linear speed of the fluid of oil-producing section is 0.008m/s, Duan Youyi bed composition of oil-producing.Meanwhile the iso-butane mitigated in regeneration wet tank 7 being led by rotary valve 4 The third bed for entering fixed bed reactors 1 carries out mitigation regeneration to the catalyst in the bed.Fixed bed reactors 1 at this time Third bed, which is in, mitigates regenerator section, shares a bed and carries out mitigation regeneration, and the void tower linear speed for mitigating fluid in regenerator section is 0.02m/s.Meanwhile the flushing liquor after regeneration is mitigated from the 4th bed of fixed bed reactors 1 extraction catalyst, and pass through rotation Valve 4 is back to mitigation regeneration wet tank 7.The 4th bed of fixed bed reactors 1 is in breeze way, the fluid of breeze way at this time Void tower linear speed be 0.015m/s.Wherein, the temperature of conversion zone, oil-producing section, mitigation regenerator section and breeze way is 50 DEG C, and pressure is 6MPa.Meanwhile the hydrogen in regeneration gas storage tank 8 after regeneration gas heaters 14 are heated to 400 DEG C with deep regenerative liquid Iso-butane in storage tank 56 is mixed to get catalyst depth regenerating medium, the mass fraction of hydrogen in catalyst depth regenerating medium It is 5%, the top bed of fixed bed reactors 2 is imported by the valve at 2 top of fixed bed reactors, depth is carried out again to catalyst It is raw.The top bed of fixed bed reactors 2 is in deep regenerative section, and four beds of fixed bed reactors 2 are completely in depth again Raw section.Fixed bed reactors 2 and fixed bed reactors 1 are completely isolated, and the temperature of deep regenerative section is 400 DEG C, pressure 5MPa, The superficial velocity of deep regenerative medium is 0.5m/s in deep regenerative section.

Stepping time is that rotary valve 4 is rotated by 90 ° by 80s after 80s (i.e. T+80s moment), iso-butane and 1- butylene it is mixed It closes object to stop entering from the top bed of fixed bed reactors 1, change by entering from the second bed of fixed bed reactors 1；Contain alkane The liquid mixture of base carburetion stops extracting out from the second bed of fixed bed reactors 1, changes by the third from fixed bed reactors 1 Bed extraction；Catalyst, which mitigates regenerating medium, to be stopped being entered by the third bed of fixed bed reactors 1, is changed by from fixed bed reaction The bottom layer of device 1 enters；Catalyst mitigate regeneration after flushing liquor stop from the bottom layer of fixed bed reactors 1 extract out, change by It is extracted out from the top bed of fixed bed reactors 1；Catalyst depth regenerating medium stop from the top beds of fixed bed reactors 2 into Enter, changes by entering from the second bed of fixed bed reactors 2.So on circulate, every time circulation when conversion zone, oil-producing section, slow 4 of the invariable number for the catalyst bed for being included with regenerator section, breeze way and deep regenerative section, fixed bed reactors 1 urge Agent bed carries out raw material reaction and catalyst mitigates regenerative process, and 4 catalyst beds of fixed bed reactors 2 are catalyzed Agent deep regenerative process.Fixed bed reactors 2 inject after 60 hours high temperature regenerations from the top of fixed bed reactors 2 The temperature of fixed bed reactors 2 is reduced to 50 DEG C by 30 DEG C of iso-butane.At the 7th day, solid acid alkylating reaction is detected Contain alkene in product, show the catalyst inactivation in fixed bed reactors 1 and regeneration cannot be mitigated, then by iso-butane and 1- The mixture of butylene imports the top bed of fixed bed reactors 2, at this point, the reaction of 2 constitutive material of fixed bed reactors and catalyst Regeneration reactor is mitigated, fixed bed reactors 1 are still isolated with fixed bed reactors 2, become deep regenerative reactor.When solid Catalyst inactivation in fixed bed reactor 2 and when cannot mitigate regeneration, imports fixed bed for the mixture of iso-butane and 1- butylene Reactor 1, fixed bed reactors 1 form raw material reaction and catalyst mitigates regeneration reactor, and fixed bed reactors 2 become depth Regeneration reactor.It loops back and forth like this, realizes that raw material reaction, catalyst mitigate regeneration and the regenerated continuous behaviour of catalyst depth Make.

Comparative example 1

This comparative example be used to illustrate it is existing based on fixed bed reactors medium-sized tester for solid acid alkylating Raw material reaction and the method for catalyst regeneration.

According to the method for embodiment 1, it unlike, is carried out on three fixed bed reactors medium-sized testers in parallel Solid acid alkylating reaction is operated with catalyst regeneration, and specific operation process is, when First fixed bed reactors are for carrying out When alkylated reaction, second fixed bed reactors are for carrying out low temperature either shallow regenerative operation, and third platform fixed bed reactors For carrying out high temperature deep regenerative operation, three fixed bed reactors in parallel, which switch, to be used.Each fixed bed reactors it is interior Diameter is 200mm, a height of 2500mm.The loadings of catalyst are 28kg in each fixed bed reactors, and filling height is 1500mm. Reaction raw materials are the mixture of iso-butane and 1- butylene, and the molar ratio of iso-butane and 1- butylene is 25:1 in raw material, in reactor Alkane alkene molar ratio be 900:1, total feed 960kg/h, the mass space velocity of alkene is 0.035h^-1.Wherein alkylated reaction Period with the switching of either shallow regenerative operation is 4h, and using the iso-butane of dissolution hydrogen as either shallow regenerating medium, either shallow regeneration is situated between The mass fraction of hydrogen is 0.2% in matter, carries out regenerated from washing, the condition of regenerated from washing to the catalyst in fixed bed reactors It is identical as the condition of alkylated reaction, are as follows: temperature is 80 DEG C, pressure 4MPa.It is in the fixed bed of alkylated reaction every time Before reactor and fixed bed reactors switching in regenerated from washing operation, needs to stop respectively 1- butylene and dissolve hydrogen Isobutane feed washs this two fixed bed reactors using pure iso-butane, after washing 10min, this two fixations Bed reactor starts handover operation.It needed to carry out a high temperature deep regenerative to the catalyst in bed every 4 days, using hydrogen At 260 DEG C, deep regenerative is carried out to the catalyst in bed under 3MPa, reproduction time 3h needs to carry out bed after regeneration Cooling down operation then again washs the catalyst in bed using pure iso-butane, and wash time 20min is residual to remove Stay in the hydrogen in bed.

After medium-sized tester continuous and steady operation 1000h in embodiment 1-2 and comparative example, to respective resulting alkane Base carburetion is detected and is evaluated, and the results are shown in Table 1.

Table 1

From table 1 it follows that 1-2's of the embodiment of the present invention is used for solid acid alkane compared with the alkylate oil of comparative example The raw material of base reacts, the yield of alkene C5+ product higher with the octane number of the resulting alkylate oil of method of catalyst regeneration It is higher, and there is higher target product (trimethylpentane) selectivity, the yield of C9+ product is also lower, illustrates of the invention Property more preferably alkylate oil can be obtained for the raw material reaction of solid acid alkylating and the method for catalyst regeneration.

From the point of view of device operation angle, for the fixed bed alkylation techniques of comparative example, the device pole of experimental determination Limiting the operation cycle is about 6 months, thereafter must more catalyst changeout；And it is used for using of the invention based on adverse current Simulation moving bed The method of the raw material reaction and catalyst regeneration of solid acid alkylating laboratory operating 12 months or more, still is able to keep higher Olefin conversion.

The method of raw material reaction and catalyst regeneration for solid acid alkylating of the invention, by raw material reaction-catalysis Agent mitigates regeneration-catalyst depth regeneration and combines, and while not influencing alkylated reaction progress, carries out to catalyst inverse Stream regeneration, can effectively inhibit the inactivation of catalyst, reduce the frequency of catalyst high temperature deep regenerative, extend the longevity of catalyst Life realizes solid acid alkylating reaction, product extraction, catalyst mitigation regeneration and the regenerated continuous and stable fortune of catalyst depth Row, extends the service life of operation cycle and device, guarantees and maintaining the catalyst in device has relatively stable balance living Property, the selectivity of target product in alkylate oil is improved, the economy of device operation operation is substantially increased, is had better Prospects for commercial application.

The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this A little simple variants all belong to the scope of protection of the present invention.

It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can No further explanation will be given for the combination of energy.

In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally The thought of invention, it should also be regarded as the disclosure of the present invention.

Claims

1. a kind of method of raw material reaction and catalyst regeneration for solid acid alkylating, which is characterized in that the raw material is anti- It should be carried out in adverse current simulation moving bed reactor with catalyst regeneration, the adverse current simulation moving bed reactor includes at least two A fixed bed reactors, i.e., for carrying out the regenerated fixed bed reactors of catalyst depth, and for carry out raw material reaction and Catalyst mitigates regenerated fixed bed reactors, and each fixed bed reactors include at least one catalyst bed, the method Include:

(1) at the T moment, the liquid mixture of alkane and alkene from raw material Yu product area is imported by adverse current mould by rotary valve It is alkylated reaction in the M bed of quasi- moving-burden bed reactor, conversion zone includes i bed；The liquid of the alkane and alkene The molar ratio of alkene and alkane is 1:10-1000 in body mixture；The liquid phase void tower linear speed of the conversion zone is 0.01-0.5m/ s；

(2) in synchronization T, the liquid containing alkylate oil is mixed from the M+i bed of adverse current simulation moving bed reactor Object extraction, and raw material and product area are back to by rotary valve, oil-producing section includes j bed；The void tower linear speed of the oil-producing section For 0.005-0.3m/s；

(3) in synchronization T, regenerating medium will be mitigated from the catalyst in regeneration feed area by rotary valve and import adverse current simulation Mitigation regeneration is carried out to catalyst in the M+i+j bed of moving-burden bed reactor, mitigating regenerator section includes k bed；It is described slow Liquid phase void tower linear speed with regenerator section is 0.01-0.5m/s；It is dissolved with regeneration gas that the catalyst, which mitigates regenerating medium, Regeneration liquid is mitigated, the mass fraction that the catalyst mitigates regeneration gas in regenerating medium is 0.01-1%, and the mitigation is again Raw liquid is hydrocarbons, and the carbon atom number of the hydrocarbons is C3-C11；The regeneration gas is hydrogen；

It (4), will be after catalyst mitigation regeneration from the M+i+j+k bed of adverse current simulation moving bed reactor in synchronization T Material extraction, and regeneration feed area is back to by rotary valve, breeze way includes q bed；The void tower linear speed of the breeze way For 0.005-0.3m/s；

(5) every after time t, the conversion zone, oil-producing section, mitigation regenerator section and breeze way move down a bed；

It is ready to use in after carrying out the catalyst inactivation that raw material reaction is mitigated with catalyst in regenerated fixed bed reactors, switching is used for The regenerated fixed bed reactors of catalyst depth are carried out as raw material reaction and catalyst is carried out and mitigate regenerated fixed bed reaction Device, and the fixed bed reactors of inactivation and remaining fixed bed reactors are completely isolated, formed deep regenerative section and using come Deep regenerative is carried out to catalyst from the catalyst depth regenerating medium in regeneration feed area, to deep regenerative after to recycle For the conversion zone, oil-producing section, mitigation regenerator section and breeze way, the catalyst depth regenerating medium is regeneration gas for switching It or is the deep regenerative liquid dissolved with regeneration gas；When the catalyst depth regenerating medium is dissolved with regeneration gas When deep regenerative liquid, the mass fraction of regeneration gas is 0.01-10%, the regeneration in the catalyst depth regenerating medium Gas is hydrogen, and the deep regenerative liquid is the lower carbon number hydrocarbons that carbon atom number is C3-C8；

The conversion zone, oil-producing section, to mitigate the temperature of regenerator section and breeze way be 30-150 DEG C；Pressure is 0.5-10MPa, described The condition of deep regenerative includes: that temperature is 100-600 DEG C；Pressure is 0.1-10MPa；

The active component of catalyst includes that load has the molecular sieve of metal, molecular sieve be FAU structural zeolite, BETA structural zeolite and One of MFI structure zeolite is a variety of, one of metal Fe, Co, Ni, Pd and Pt or a variety of.

2. according to the method described in claim 1, wherein, the rotary valve includes conduit valve, channel valve and rotor plate, the slot Road valve is connected with the pipeline for the material that imports and extract out fixed bed reactors, the channel valve and fixed bed reactors Each catalyst bed is connected, and the rotor plate is used to import or extract out some specified catalyst bed for specific material Layer.

3. according to the method described in claim 1, wherein, the raw material and product area include alkane storage tank, alkene storage tank, raw material Mixer, alkylate oil storage tank and fractionating column, the material in the alkane storage tank and alkene storage tank is after material mixer mixes Adverse current simulation moving bed reactor, the alkylation reaction product generated in adverse current simulation moving bed reactor are imported by rotary valve Fractionating column is imported for separating alkylate oil and alkane by rotary valve, and isolated alkylate oil and alkane are back to respectively Alkylate oil storage tank and alkane storage tank.

4. according to the method described in claim 1, wherein, the regeneration feed area includes mitigating regeneration wet tank, regeneration gas Body storage tank, Gas-liquid mixing valve, regeneration gas heaters and gas-liquid separator, the mitigation regeneration wet tank and regeneration gas storage Material in tank, which is imported in adverse current simulation moving bed reactor after Gas-liquid mixing valve mixes by rotary valve, carries out catalyst Regeneration is mitigated, the material in the adverse current simulation moving bed reactor after catalyst mitigation regeneration passes through rotary valve and imports gas-liquid point From device for separating regeneration gas and mitigating regenerated liquid body, isolated regeneration gas and mitigation regenerated liquid body are back to respectively Regeneration gas storage tank adds with regenerated liquid body storage tank, the regeneration gas in the regeneration gas storage tank is mitigated through regeneration gas heaters It is imported in adverse current simulation moving bed reactor after heat by rotary valve and deep regenerative is carried out to catalyst.

5. according to the method described in claim 1, wherein, the regeneration feed area includes mitigating regeneration wet tank, regeneration gas Body storage tank, regeneration gas heaters, deep regenerative wet tank, cooling heat exchanger and gas-liquid separator, the mitigation regenerated liquid Material in body storage tank is imported in adverse current simulation moving bed reactor by rotary valve carries out mitigation regeneration to catalyst, described inverse Catalyst, which mitigates the material after regeneration and imported by rotary valve, in flow field simulation moving-burden bed reactor mitigates regeneration wet tank, described Regeneration gas in regeneration gas storage tank mixes after regeneration gas heaters heat with the material in deep regenerative wet tank And mixture is imported in adverse current simulation moving bed reactor, deep regenerative is carried out to catalyst, the adverse current Simulation moving bed is anti- The material in device after catalyst depth regeneration is answered to import gas-liquid separator after cooling heat exchanger cools down for separating regeneration gas With deep regenerative liquid, isolated regeneration gas and deep regenerative liquid are back to regeneration gas storage tank and depth again respectively Raw wet tank.

6. according to the method described in claim 1, wherein, the conversion zone, oil-producing section, the temperature for mitigating regenerator section and breeze way It is 40-120 DEG C；Pressure is 1-6MPa.

7. according to the method described in claim 6, wherein, the conversion zone, oil-producing section, the temperature for mitigating regenerator section and breeze way It is 50-100 DEG C.

8. according to the method described in claim 1, wherein, alkene and alkane rubs in the liquid mixture of the alkane and alkene You are than being 1:15-200；The liquid phase void tower linear speed of the conversion zone is 0.02-0.2m/s.

9. according to the method described in claim 8, wherein, alkene and alkane rubs in the liquid mixture of the alkane and alkene You are than being 1:20-100.

10. according to the method described in claim 1, wherein, the void tower linear speed of the oil-producing section is 0.008-0.15m/s.

11. according to the method described in claim 1, wherein, the catalyst mitigates the quality point of regeneration gas in regenerating medium Number is 0.05-0.5%.

12. according to the method described in claim 1, wherein, the carbon atom number of the hydrocarbons is C4-C9.

13. according to the method for claim 12, wherein the carbon atom number of the hydrocarbons is C4-C8.

14. according to the method described in claim 1, wherein, the liquid phase void tower linear speed for mitigating regenerator section is 0.02-0.2m/ s。

15. according to the method for claim 14, wherein the void tower linear speed of the breeze way is 0.008-0.15m/s.

16. according to the method described in claim 1, wherein, the condition of the deep regenerative includes: that temperature is 150-400 DEG C；Pressure Power is 0.5-5MPa.

17. according to the method described in claim 1, wherein, the catalyst depth regenerating medium is regeneration gas.

18. according to the method described in claim 1, wherein, the quality of regeneration gas is divided in the catalyst depth regenerating medium Number is 0.1-5%.

19. according to the method described in claim 1, wherein, the deep regenerative medium is in the apparent velocity of deep regenerative section 0.001-1m/s。

20. according to the method for claim 19, wherein the deep regenerative medium is in the apparent velocity of deep regenerative section 0.02-0.5m/s。