CN206924734U - Fluid catalyst reduces device for discharging - Google Patents
Fluid catalyst reduces device for discharging Download PDFInfo
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- CN206924734U CN206924734U CN201720440341.XU CN201720440341U CN206924734U CN 206924734 U CN206924734 U CN 206924734U CN 201720440341 U CN201720440341 U CN 201720440341U CN 206924734 U CN206924734 U CN 206924734U
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- 239000003054 catalyst Substances 0.000 title claims abstract description 112
- 238000007599 discharging Methods 0.000 title claims abstract description 38
- 239000012530 fluid Substances 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 239000007787 solid Substances 0.000 claims description 24
- 238000000926 separation method Methods 0.000 claims description 16
- 230000001737 promoting effect Effects 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 36
- 238000005070 sampling Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 56
- 238000006722 reduction reaction Methods 0.000 description 35
- 238000000034 method Methods 0.000 description 18
- 238000010926 purge Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 10
- 239000008187 granular material Substances 0.000 description 9
- 239000002245 particle Substances 0.000 description 8
- 239000000523 sample Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
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- 230000015572 biosynthetic process Effects 0.000 description 4
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011949 solid catalyst Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
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- 229910052731 fluorine Inorganic materials 0.000 description 1
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- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
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- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
Fluid catalyst reduction apparatus field is the utility model is related to, discloses fluid catalyst reduction device for discharging, including：Fluidized-bed reactor (9) with bottom pipe and the plunger valve (14) being connected with the lower openings of the bottom pipe (4), the plunger valve includes the valve element (1) that valve body (3), valve rod and surface have sealing structure, the valve body (3) is connected with the bottom pipe (4) coaxial line, and the valve body (3) is identical with the internal diameter of the bottom pipe (4)；The bottom of the valve body (3) is provided with catalyst discharge port (7) and gas blow valve port A (6).The utility model provides a kind of sampling device for discharging simple in construction, easily operated, does not blend the purpose of raw catalyst when can realize reduction-state catalyst removal.
Description
Technical field
It the utility model is related to fluid catalyst reduction apparatus field, and in particular to fluid catalyst reduction discharging dress
Put.
Background technology
Catalyst reduction technology is one of key factor that F- T synthesis device successfully operates, and freshly prepd F- T synthesis is urged
Agent is oxidation state, does not possess fischer-tropsch reaction activity, it is necessary to carry out reduction activation before use.Catalyst reduction technology is sought to
Fischer-tropsch synthetic catalyst before use is reduced, elemental stage is at or metal fluor-complex state plays its activity.
Catalyst reduction technique mainly has three kinds of fixed bed, slurry bed system and fluid bed at present, is synthesized for Low Temperature Fischer Tropsch
The ferrum-based catalyst used, its reduction temperature are generally 220-270 DEG C, and reduce pressure according to the different difference of process choice compared with
Greatly.
In catalyst fluidized bed reducing process, catalyst is heated reduction in fluidized-bed reactor, works as reduction reaction
, it is necessary to which the catalyst reduced is drawn off from fluidized-bed reactor bottom after end, but because discharge valve is located at fluidized-bed reaction
On the discharge duct of device bottom, not energy fluidizing and unreduced catalyst granules are contained in discharge duct for a long time, these catalyst particles
Grain can mix, so as to cause to mix in reduction-state catalyst prod in discharging with the reduction-state catalyst in reactor
There is raw catalyst, influence the using effect of follow-up Fischer-Tropsch synthesis.
At present, the discharge method of industrial fluidized-bed reactor is to set plug valve on reactor bottom pipeline, works as needs
When discharging or sampling, open bottom plug valve and release solid material.But due to having one between discharge valve and reduction reactor bottom
Fixed distance, existing catalyst granules can not be fluidized and reduce in this section of tubing, and the catalyst not being reduced is unloading
Take the lead in being released during material, and blending can not separate in reduction-state catalyst, and this partial catalyst is anti-in follow-up F- T synthesis
When answering process, the activity of catalyst can be reduced, causes the reduction of product yield and yield.Also, due to plunger valve inner sealing
Material is unable to high temperature resistant, therefore plunger valve must be anti-with fluid bed on reactor lower part discharge duct away from high-temperature area
Answer the distance between device bottom at least on 150mm position.
CN201867312U discloses the device of a kind of fluidized-bed reactor gas-liquid-solid three-phase while sampling, and the device is to put
In reactor middle and upper part, probe tube terminal order connection solid knockout drum, knockout drum and gas flowmeter can be simultaneously
Gather gas-liquid-solid three-phase sample.This method can evade the problem of raw catalyst mixes, and directly be taken from reactor middle and upper part
Go out sample.But the prior art can not realize that a large amount of of solid material draw off, and substantial amounts of unstripped gas also one in sampling process
And entering later separation tank, probe tube, which also needs blowback air to carry out blowback, to be prevented from blocking, and adds the complexity and difficulties of technique.This
Outside, the sample of the prior art is carried out in the state of normal temperature, normal pressure.
CN201778047U discloses a kind of high-temperature fluidized bed device of process sampling.Sampling gun in the device is reacting
Device middle and lower part, it is possible to achieve the online process sampling of fluidized-bed reactor, but because sampling gun capacity is smaller, it is impossible to be used in sample
The a large amount of of product draw off.
CN203365172U discloses a kind of high temperature, high pressure, flammable solid liable to sponta neous combustion fluid bed sampler.The device by
Water-cooling jacket is set on the outside of sampler and connects nitrogen pipeline, the hair for solving flammable solid liable to sponta neous combustion material pyrophoricity accident in sampling
It is raw.The sampler is directly connected with the discharge valve of reactor bottom in use, it is impossible to which solution avoids raw catalyst from blending
The problem of being drawn off together in reducing catalyst.
Utility model content
The purpose of this utility model is in order to which blending does not reduce when overcoming reduction-state catalyst removal existing for prior art
The problem of catalyst, there is provided a kind of device for discharging for fluid catalyst reduction reactor, the device can realize reduction
The purpose of raw catalyst is not blended during state catalyst removal.
To achieve these goals, on the one hand the utility model provides a kind of fluid catalyst reduction device for discharging, bag
Include：Fluidized-bed reactor with bottom pipe and the plunger valve being connected with the lower openings of the bottom pipe, the plunger valve
There is the valve element of sealing structure including valve body, valve rod and surface, the valve body is connected with the bottom pipe coaxial line, and described
Valve body is identical with the internal diameter of the bottom pipe；The bottom of the valve body is provided with catalyst discharge port and gas blow valve port A；Institute
At least a portion for stating valve rod is arranged on the valve inner, and the top of the valve rod is connected with the bottom of the valve element, and
And by promoting the valve rod to enable to the valve element in the valve inner and the lower tube connected in coaxial line
Moved up and down between the upper opening and lower openings in road, so as to fluidized-bed reactor described in movable sealing.
The utility model provides a kind of sampling device for discharging simple in construction, easily operated.The utility model eliminates
Original plunger valve static seal mode so that valve element can be deep into valve inner, the bottom pipe of fluid bedreactors it is upper
Portion's opening is directly sealed, while gas blow valve port is added on valve body, is carried out regular purge to pipeline and valve, is extended
The service life of device.
The movable sealing (also referred to as dynamic sealing) be for the static seal of prior art, it is of the present utility model
Movable sealing is by promoting valve rod to realize the up and down motion of valve element, and the surface of valve element has sealing structure, so that
Sealing area is obtained with the movement position of valve element to change.
Preferably, device for discharging of the present utility model further comprises gas solid separation tank, and the top of the gas solid separation tank leads to
Cross and connected with valvular pipeline with the plunger valve, and the bottom of the gas solid separation tank passes through pipeline and the fluid bed
The catalyst inlet connection of reactor.The gas solid separation tank can realize the separation of gas and solid catalyst, consolidating after separation
Body catalyst can be reintroduced back to by pipeline and be reduced into fluidized-bed reactor.
Preferably, device for discharging of the present utility model further comprises discharge tank, and the discharge tank passes through with valvular pipe
Line connects with the plunger valve.By setting valve on the pipeline of connection discharge tank, enable to close after the completion of discharging
Valve and avoid the catalyst of the reduction in discharge tank from againing be oxidized and inactivate.
Preferably, gas blow valve port B is provided with the bottom pipe.The gas blow valve port set in the bottom pipe
B can realize that solid catalyst particle or catalyst fines that may be present etc. may cause pipe effectively in purging bottom pipe
The material of road choking phenomenon, so as to the service life of extension fixture.
Preferably, the valve rod include the first valve rod for being directly connected with the bottom of the valve element and with first valve rod
The second valve rod that lower end is flexibly connected.The valve rod of the first valve rod and the second valve rod containing flexible connection can realize freedom
The purpose of dismounting, so that device convenience in transport of the present utility model etc..The mode of the flexible connection can for example include
Threaded connection, it can also be attached by the concavo-convex tie point for setting shape size to match.Under preferable case, first valve
Concavo-convex tie point between bar and the second valve rod is circumferentially disposed multiple projections on second valve rod, on valve rod inwall
Matching bayonet socket is set, so as to realize that both is circumferentially fixed.
Preferably, the bottom of second valve rod is arranged on outside the valve body, and the bottom connection of second valve rod
There is handle.Under preferable case, the bottom of the handle and second valve rod is connected through a screw thread or for by setting screw mandrel
It is attached.
Preferably, the length of second valve rod is 1~5 times of length of first valve rod.
The utility model sets in valve body valve stem seal by using the valve rod with valve element and to of the present utility model
Device is sealed.The valve stem seal is dynamic sealing.The valve stem seal can select packing box seal, sylphon seal,
One or more of combinations in the conventional seal form such as labyrinth seal.
Preferably, the set location of the gas blow valve port A be located at the catalyst discharge port on along following.By described in
Gas blow valve port A position be arranged on the catalyst discharge port on enable to be entered by the gas blow valve port A along following
The valve body is neutralized the catalyst of possible adhesion or remaining in the catalyst discharge port by the gas entered in the plunger valve
The powder such as particle purging is clean, prevents choking phenomenon.
The gas blow valve port A and gas blow valve port B internal diameter can be with identical or different, preferred both internal diameter phase
Together.
Preferably, the ratio between internal diameter of the internal diameter of the catalyst discharge port and the valve body is (0.8~1.5)：1.
Under preferable case, the ratio between the internal diameter of the gas blow valve port A and the internal diameter of the valve body are (0.3~0.8)：1.
Under preferable case, in upper opening to the distance of the bottom of the valve body and the valve body of the bottom pipe
The ratio between footpath is (5~20)：1.
Preferably, the set location of the catalyst discharge port causes when the valve element is pulled to the bottom of the valve body,
The upper surface of the valve element flushed with the lower edge of the catalyst discharge port or positioned at the catalyst discharge port lower edge with
Under.The upper surface of the preferably described valve element of the utility model flushes with the lower edge of the catalyst discharge port, so that coming
The reducing catalyst of gravity flow fluidized bed reactor does not have excessive residual in valve body and directly can unloaded by the catalyst
Material mouth is drawn.
Preferably, the sealing structure for being arranged on the surface of the valve element is sealing ring.Under preferable case, the sealing ring is adopted
Made of resilience is strong, wearability is high encapsulant, for example, can be soft graphite, fluorine rubber and one kind in tetrafluoroethene or
It is two or more.
Preferably, the fluidized-bed reactor bottom is connected with the upper opening of the bottom pipe by flange.
Under preferable case, the fluidized-bed reactor bottom and the junction of the upper opening of the bottom pipe are provided with
Graphite-metal winds packing ring.
Using foregoing device for discharging reduction and the method for discharge reduction catalyst, including：
(1) valve element is pushed into the upper opening of the bottom pipe by valve rod so that the fluidized-bed reactor
Reducing catalyst in sealed states, until reduction cycle terminates；
(2) valve element is pulled to the bottom of the valve body by valve rod so that urged with described the upper surface of the valve element
The lower edge of agent discharge port flushes, or below the lower edge of the catalyst discharge port, in the fluidized-bed reactor
Reducing catalyst pass sequentially through the bottom pipe, the valve body and the catalyst discharge port are drawn；
(3) gas purging is opened so that gas is entered in the valve body by the gas blow valve port A, by the valve body
And the catalyst granules of possible remaining is removed from the plunger valve and the bottom pipe in the bottom pipe；
(4) upper opening that the valve element is pushed into the bottom pipe by the valve rod carries out catalyst to circulate
Reduction.
Preferably, this method further comprises：In step (3), by the valve body and can in the bottom pipe
Catalyst granules that can be remaining is removed from the plunger valve and the bottom pipe, with by entering institute with valvular pipeline
State and separated in gas solid separation tank, also, isolated catalyst is entered by catalyst inlet of the pipeline through fluidized-bed reactor
Enter and reduced again into the fluidized-bed reactor.
Under preferable case, this method further comprises：In step (2), from the reduction of catalyst discharge port extraction
Catalyst by with valvular pipeline enter the discharge tank in, and discharging completion after and open purging before,
The valve closed on the pipeline for connecting the discharge tank.
According to a kind of preferred embodiment of the present utility model, in the bottom pipe of the fluidized-bed reactor with
And gas blow valve port B and gas blow valve port A are set respectively on valve body, to leaking into the catalyst particles in bottom pipe and valve body
Grain carries out regular purge, improves the service life of device of the present utility model.When the catalyst in fluidized-bed reactor is gone back
When former, the upper opening that the valve element of plunger valve reaches the bottom pipe of fluidized-bed reactor is sealed；After reduction cycle terminates,
Plunger valve is opened, valve element reaches the least significant end of plunger valve, and reduction-state catalyst is drawn off from the catalyst discharge port of plunger valve；Unload
After material, the valve on the pipeline of closing connection discharge tank, the valve on the pipeline of connection gas solid separation tank is opened, opening is blown
Valve is swept to being purged in bottom pipe and valve body, with ensure discharging completely and next time reduction start before plug valve and fluid bed it is anti-
Answer the sealing of device bottom.Catalyst discharge port of the catalyst granules through gas purging along plunger valve enters the gas-solid point in downstream
Separated from tank, be recycled in fluidized-bed reactor after solid particle accumulation and reduced again.
Purge gas species of the present utility model to for purging has no particular limits, and can be that this area routinely makes
Various gases, such as can be inert gas, can be the reduction of the catalyst for reduction-oxidation state under preferable case
Property gas.The utility model has no particular limits to the flow velocity for introducing gas, can be can dispose bottom pipe and valve
The impurity such as catalyst granules that in vivo may be remaining or powder is adjusted for target.
In the utility model, because the bottom of the direct fluid bedreactors of valve element is sealed, fundamentally solve
The blending problem of reduction-state catalyst and raw catalyst when fluid catalyst reduces.The utility model is in original post simultaneously
Gas blow valve port is added on plug valve, can periodically be purged to entering the solid particle inside plug valve, be extended plunger valve and exist
Service life in solid particle environments.
More specifically, the technical solution of the utility model eliminates the static seal in the plunger valve of prior art, devise
The plunger valve of the upper opening of the bottom pipe of fluidized-bed reactor can directly be sealed.
The utility model plunger valve can be connected to fluidized-bed reactor bottom straight down, can also be connected by discharge duct
It is connected on the oblique lower wall of fluid bed taper.Discharging angle is can draw off solid particle as according to setting obliquely.
Brief description of the drawings
Fig. 1 is the structural representation of plunger valve of the present utility model；
Fig. 2 is the process schematic representation using device of the present utility model reduction and discharge reduction catalyst.
Description of reference numerals
1st, valve element
21st, the first valve rod
22nd, the second valve rod
3rd, valve body
4th, bottom pipe
5th, gas blow valve port B
6th, gas blow valve port A
7th, catalyst discharge port
8th, handle
9th, fluidized-bed reactor
10th, discharge tank
11st, gas solid separation tank
12nd, also Primordial Qi import
13rd, catalyst inlet
14th, plunger valve
Embodiment
The end points of disclosed scope and any value are not limited to the accurate scope or value herein, these scopes or
Value should be understood to comprising the value close to these scopes or value.For number range, between the endpoint value of each scope, respectively
It can be combined with each other between the endpoint value of individual scope and single point value, and individually between point value and obtain one or more
New number range, these number ranges should be considered as specific open herein.
Device for discharging is reduced to fluid catalyst of the present utility model below in conjunction with accompanying drawing and its application process is carried out in detail
Thin description.
As shown in figure 1, fluid catalyst reduces device for discharging, including：Fluidized-bed reactor with bottom pipe 4 and
The plunger valve being connected with the lower openings of the bottom pipe 4, the plunger valve includes valve body 3, valve rod and surface, and there is sealing to tie
The valve element 1 of structure, the valve body 3 are connected with the coaxial line of bottom pipe 4, and the valve body 3 and the internal diameter of the bottom pipe 4
It is identical；The bottom of the valve body 3 is provided with catalyst discharge port 7 and gas blow valve port A6；At least a portion of the valve rod is set
Put inside the valve body 3, and the top of the valve rod is connected with the bottom of the valve element 1, and by promoting the valve rod
Enable to the valve element 1 the inside of the valve body 3 and coaxial line connection the bottom pipe 4 upper opening and under
Moved up and down between portion's opening, so as to fluidized-bed reactor described in movable sealing.
Under preferable case, the valve rod includes the first valve rod 21 and the second valve rod 22 being flexibly connected.
Under preferable case, gas blow valve port B5 is provided with the bottom pipe 4.
Preferably, the bottom of second valve rod 22 is arranged on outside the valve body 3, and the bottom of second valve rod 22
It is connected with handle 8.
There is second valve rod 22 of handle 8 by drawing pushing belt, drive connected first valve rod 21 and described
Valve element 1 is up and down in the bottom pipe 4 and the inside of the valve body 3, realizes movable sealing fluidized-bed reactor.
According to a kind of preferred embodiment, by promoting the handle 8, the valve element 1 is pushed into so that described
The upper surface of valve element 1 flushes with the upper opening of the bottom pipe 3, so that fluidized-bed reactor keeps sealing state,
Oxidized catalyst in fluidized-bed reactor is reduced, after reduction cycle terminates, by pulling the handle 8, by described in
Valve element 1 is pulled to so that the upper surface of the valve element 1 flushes with the lower edge of the catalyst discharge port 7, from fluidized-bed reactor
In reduction-state catalyst drawn successively by bottom pipe 4, the inside of valve body 3 with catalyst discharge port 7；After discharging finishes,
Open purging so that gas from gas blow valve port A6 or and purged from gas blow valve port B5 into device, after purging
Gas-solid mixture drawn through catalyst discharge port 7.
As shown in Fig. 2 the utility model can utilize fluid catalyst reduction device for discharging to use following process
Reduce simultaneously discharge reduction catalyst：
(1) valve element is pushed into the upper opening of the bottom pipe of fluidized-bed reactor 9 by the valve rod of plunger valve 14 so that
The fluidized-bed reactor 9 reducing catalyst in sealed states, until reduction cycle terminates；
(2) valve element is pulled to the bottom of valve body by valve rod so that the upper surface of valve element and the lower edge of catalyst discharge port
Flush, or below the lower edge of catalyst discharge port, the reducing catalyst in the fluidized-bed reactor 9 passes sequentially through
Bottom pipe, valve body and catalyst discharge port are drawn；
(3) open gas purging so that gas by gas blow valve port A or and gas blow valve port B enter valve body and bottom
In portion's pipeline, by valve body and in bottom pipe may remaining catalyst granules from plunger valve 14 and the bottom pipe
Remove；
(4) valve element is pushed into by the upper opening of bottom pipe by valve rod and carries out the reduction of catalyst to circulate.
Under preferable case, reduction-state catalyst in step (2) by entering with valvular pipeline in discharge tank 10, and
And the valve closed after discharging on the pipeline.
Preferably, after discharging finishes, the valve on the pipeline of connection plunger valve 14 and gas-solid knockout drum 11 is opened, and
Open gas purging so that gas by gas blow valve port A or and gas blow valve port B enter valve body and bottom pipe in, will
Catalyst granules that may be remaining in valve body and in bottom pipe is removed to enter from plunger valve 14 and the bottom pipe
Separated in the gas solid separation tank 11.
Preferably, the reducibility gas of gained after gas solid separation will be carried out by the way that also to be introduced to fluid bed anti-for Primordial Qi import 12
Answer in device 9, and the catalyst granules of gained after gas solid separation is introduced to fluidized-bed reaction from the catalyst inlet 13
Reduced in device 9.
The utility model will be described in detail by embodiment below.In following examples, it is being not particularly illustrated
In the case of, the various raw materials that use are all from commercially available.
Fluid bed ferrum-based catalyst reduction apparatus in embodiment is feather weight.
Embodiment 1
Carried out using the process route shown in the plunger valve and Fig. 2 described in the utility model Fig. 1, and valve body nominal diameter
DN40, the length of valve rod is 390mm；The upper opening of bottom pipe to the distance of top end of the valve body is 150mm；Gas blow valve port A
Identical with gas blow valve port B internal diameter, nominal diameter is DN20；The nominal diameter of the catalyst discharge port is DN40.
Experiment condition：Temperature is 250 DEG C, pressure 0.4MPa, H2/ CO (volume ratio)=20：1, inlet tower gas speed 0.05m/
s.1kg reduction-state catalyst is drawn off after reduction 10h, evaluation result is such as on stirred tank evaluating apparatus for the batch reduction-state catalyst
Under：
Appreciation condition：245 DEG C, pressure 2.3MPa, H2/ CO=2, air speed 6000NmL/gh, evaluation time 150h.
Evaluation result：CO conversion ratios 55.8%, CO219.1%, CH of selectivity4Selectivity is 2.6%.
Comparative example 1
Carried out using the plunger valve of static seal mode of the prior art, that is, the structure and the utility model of plunger valve
The structure of the plunger valve used in embodiment is similar, unlike：
It is not provided with gas blow valve port A and gas blow valve port B in the plunger valve, and the upper opening of bottom pipe is to valve body top
The distance at end is 150mm, and the length of valve rod is 190mm.When catalyst is reduced, upper surface and the catalysis discharge port of valve element
Upper edge flush；When carrying out discharging after reduction terminates, the upper surface of valve element flushes with being catalyzed the lower edge of discharge port.
Tested using reducing condition same as Example 1 and evaluation experimental condition.
Evaluation result is：CO conversion ratios 52%, CO218.2%, CH of selectivity4Selectivity is 2.5%.
It can be seen from the result of embodiment and comparative example using device of the present utility model carry out catalyst reduction and
Reduction of the performance for the reduction-state catalyst that discharging obtains better than prior art and device for discharging.
Preferred embodiment of the present utility model described in detail above, still, the utility model is not limited to this.At this
In the range of the technology design of utility model, a variety of simple variants can be carried out to the technical solution of the utility model, including it is each
Technical characteristic is combined with any other suitable method, and these simple variants and combination should equally be considered as the utility model
Disclosure of that, belong to the scope of protection of the utility model.
Claims (10)
1. a kind of fluid catalyst reduces device for discharging, including：Fluidized-bed reactor (9) with bottom pipe and with it is described
The plunger valve (14) of the lower openings connection of bottom pipe (4), the plunger valve, which includes valve body (3), valve rod and surface, has sealing
The valve element (1) of structure, the valve body (3) are connected with the bottom pipe (4) coaxial line, and the valve body (3) and the bottom
The internal diameter of pipeline (4) is identical；The bottom of the valve body (3) is provided with catalyst discharge port (7) and gas blow valve port A (6)；It is described
At least a portion of valve rod is arranged on the valve inner, and the top of the valve rod is connected with the bottom of the valve element, and
By promoting the valve rod to enable to the valve element in the valve inner and the bottom pipe connected in coaxial line
Upper opening and lower openings between move up and down, so as to fluidized-bed reactor described in movable sealing.
2. device for discharging according to claim 1, wherein, the device for discharging further comprises gas solid separation tank (11), should
The top of gas solid separation tank with valvular pipeline with the plunger valve by connecting, and the bottom of the gas solid separation tank leads to
The catalyst inlet that pipeline is crossed with the fluidized-bed reactor connects.
3. device for discharging according to claim 1 or 2, wherein, the device for discharging further comprises discharge tank (10), and this is unloaded
Batch can with valvular pipeline with the plunger valve by connecting.
4. device for discharging according to claim 1 or 2, wherein, gas blow valve port B (5) is provided with the bottom pipe.
5. device for discharging according to claim 1 or 2, wherein, the bottom that the valve rod includes directly with the valve element connects
The first valve rod (21) connect and the second valve rod (22) being flexibly connected with the lower end of first valve rod.
6. device for discharging according to claim 5, wherein, the bottom of second valve rod is arranged on outside the valve body,
And the bottom of second valve rod is connected with handle (8).
7. device for discharging according to claim 1 or 2, wherein, the set location of the gas blow valve port A is urged positioned at described
Along following on agent discharge port.
8. device for discharging according to claim 7, wherein, the set location of the catalyst discharge port to work as the valve
When core is pulled to the bottom of the valve body, the upper surface of the valve element flushes with the lower edge of the catalyst discharge port or positioned at institute
State below the lower edge of catalyst discharge port.
9. device for discharging according to claim 1 or 2, wherein, the sealing structure for being arranged on the surface of the valve element is close
Seal ring.
10. device for discharging according to claim 1 or 2, wherein, the fluidized-bed reactor bottom and the bottom pipe
Upper opening connected by flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720440341.XU CN206924734U (en) | 2017-04-25 | 2017-04-25 | Fluid catalyst reduces device for discharging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720440341.XU CN206924734U (en) | 2017-04-25 | 2017-04-25 | Fluid catalyst reduces device for discharging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206924734U true CN206924734U (en) | 2018-01-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111483071A (en) * | 2020-04-22 | 2020-08-04 | 常州海石智能装备有限公司 | Look female mixing arrangement |
| CN112303269A (en) * | 2020-09-30 | 2021-02-02 | 北京航天石化技术装备工程有限公司 | Plunger type valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111483071A (en) * | 2020-04-22 | 2020-08-04 | 常州海石智能装备有限公司 | Look female mixing arrangement |
| CN112303269A (en) * | 2020-09-30 | 2021-02-02 | 北京航天石化技术装备工程有限公司 | Plunger type valve |
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Address after: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Patentee after: CHINA ENERGY INVESTMENT Corp.,Ltd. Patentee after: Beijing low carbon clean energy Research Institute Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee before: SHENHUA GROUP Corp.,Ltd. Patentee before: NATIONAL INSTITUTE OF CLEAN-AND-LOW-CARBON ENERGY |
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