CN107684808A - A kind of sulfur recovery tail gas handling process and system - Google Patents

A kind of sulfur recovery tail gas handling process and system Download PDF

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Publication number
CN107684808A
CN107684808A CN201711002579.5A CN201711002579A CN107684808A CN 107684808 A CN107684808 A CN 107684808A CN 201711002579 A CN201711002579 A CN 201711002579A CN 107684808 A CN107684808 A CN 107684808A
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China
Prior art keywords
gas
tail gas
tail
heat
tower
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CN201711002579.5A
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Inventor
邵松
王弯弯
刘颖
王丽洁
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Luoyang Ruichang Petro Chemical Equipment Co Ltd
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Luoyang Ruichang Petro Chemical Equipment Co Ltd
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Priority to CN201711002579.5A priority Critical patent/CN107684808A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • B01D53/52Hydrogen sulfide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/343Heat recovery
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • B01D53/50Sulfur oxides
    • B01D53/501Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • B01D53/504Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75Multi-step processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases

Abstract

The present invention relates to a kind of sulfur recovery tail gas sulfur removal technology and system, hydrogen sulfide containing sour gas is after Crouse's+SCOT technique Recovered sulphur, the medium temperature flue gas that sulphur tail gas processed exports with exhaust gas heat recovery boiler is exchanged heat, the Fuel Consumption of tail gas furnace is saved, improve utilization rate of waste heat, flue-gas temperature is further reduced simultaneously, is realized and is effectively combined with semi-dry desulfurizing process.Containing SO2Flue gas enters circulating fluidized bed desulfurization tower, SO2Neutralization reaction occurs in the presence of atomized water with absorbent, discharges SO in flue gas2Content is less than 50mg/Nm3.It is inventive desulfurization process non-wastewater discharge, corrosion-free, low without white haze phenomenon, investment and operating cost.

Description

A kind of sulfur recovery tail gas handling process and system
Technical field
The present invention relates to sulfur recovery tail gas processing technology field, and in particular to a kind of sulfur recovery tail gas handling process and System.
Background technology
Environmental problem be China pay attention to outstanding problem, on July 1st, 2015 implement GB31570-2015《Petroleum refining Emission of industrial pollutants standard》Regulation, Special section Acidic Gas Treating device SO2Emission limit be 100mg/Nm3, than before The SO of national regulation2Concentration of emission is not higher than 960mg/Nm3- 90% is reduced, shows that China curbs environmental pollution the resolution of problem.Mesh Preceding domestic sulfur recovery tail gas processing method mainly has low-temperature Claus, selective catalytic oxidation method and reducing absorping method.Reduction Absorption technique is high to claus sulphur recovery units strong adaptability, degree of purification, and sulfur recovery rate can reach 99.8%, through tail gas burning furnace SO in flue gas after burning2Concentration < 960mg/Nm3, but new environmental protection standard < 100mg/Nm can not have been met3Requirement.Other works SO in the flue gas of process end2Concentration is higher, it is therefore desirable to the SO in flue gas2It is further processed.To in tail gas of sulphur SO2The method of processing has several, and patent ZL201510633242.9 uses soda wet method sulphur flue gas desulfurization technique, with sulfurous acid Sodium solution is that absorbent absorbs SO2.Patent ZL201510401950.X uses sodium magnesium wet method sulphur flue gas desulfurization technique, absorbent For Mg (OH)2And NaOH, all it is wet desulfurizing process, substantial amounts of water can be consumed, and operating cost is higher, system is perishable, Later stage operation maintenance is complicated.
The content of the invention
The purpose of the present invention is in order to solve the above technical problems, providing a kind of sulfur recovery tail gas handling process and system.
The present invention is in order to solve the above technical problems, the technical scheme provided is:A kind of sulfur recovery tail gas handling process, Containing H2S sour gas is after claus reaction and SCOT PROCESS FOR TREATMENTs, and sulphur tail gas processed carries out heat exchange with medium temperature flue gas, after heat exchange Tail gas through burn, reclaim heat after, containing SO2Low-temperature flue gas be emitted into air after semidry process desulfurizer purifies.
As a kind of further optimization of sulfur recovery tail gas handling process of the present invention:Containing H2S sour gas fires through sour gas Burn after stove burns and enter two-stage claus reaction system, generate molten sulfur and Claus tail gases, Claus tail gases and reducibility gas Into hydrogenation reactor, the tail gas after hydrogenation reaction sequentially enters chilling tower, absorption tower and regenerator, and regeneration overhead gas returns The further Recovered sulphur of sour gas burning furnace, absorb tower top sulphur tail gas and carried out with entering tail gas burning furnace after medium temperature flue gas heat exchange Burn, burn and contain SO after heat exchange2Medium temperature flue gas enters from circulating sulfuration bed desulfurization tower bottom venturi, accelerates flow-disturbing in throat Afterwards, contacted in divergent segment with absorbent, wherein SO2Absorbed by absorbent, the flue gas for carrying a large amount of dust secretly enters sack cleaner In, returned in circulating fluidized bed desulfurization tower and recycle by the solid particle part that deduster is collected, another part is defeated Hui Ku is delivered to, purifying smoke is emitted into air.
As a kind of further optimization of sulfur recovery tail gas handling process of the present invention:The medium temperature flue gas and sulphur tail gas processed Temperature is down to 150-200 DEG C after heat exchange.
As a kind of further optimization of sulfur recovery tail gas handling process of the present invention:The absorbent be 300-400 mesh, The calcium hydroxide powder of purity more than 90%.
As a kind of further optimization of sulfur recovery tail gas handling process of the present invention:The circulating sulfuration bed desulfurization tower Nozzle is provided with venturi outlet diffusion pipeline section, after process water is by nozzle atomization, is contacted with flue gas and absorbent.
As a kind of further optimization of sulfur recovery tail gas handling process of the present invention:Injection flow rate is adjusted, makes desulfurization fume Temperature control is at 80 DEG C.
A kind of sulfur recovery tail gas processing system, including acid gas burner, sour gas waste heat boiler, one-level Crouse Reactor, two level claus reaction device, hydrogenation reactor, chilling tower, absorption tower, regenerator, tail gas burning furnace, waste heat from tail gas pot Stove, tail gas-flue gas heat-exchange unit and circulating fluidized bed desulfurization tower, sour gas waste heat boiler are connected to one-level sulfur condenser, one-level sulphur The gas of condenser after the pyroprocess gas blending of acid gas burner discharge with entering one-level claus reaction device and two level Sulfur condenser, the medium temperature Process Gas that the chilling process gas that two level sulfur condenser comes out comes out with one-level claus reaction device is in gas gas Exchanged heat in heat exchanger, subsequently into two level claus reaction device and three-level sulfur condenser, three-level sulfur condenser comes out low The Process Gas that warm Process Gas enters after tail gas gathering device after Process Gas heat exchanger and hydrogenation reaction exchanges heat, with H2It is mixed into and adds Hydrogen reactor, the gas after hydrogenation enter chilling tower, absorption tower and regenerator, regeneration overhead gas after the cooling of Process Gas heat exchanger Body returns to sour gas burning furnace, absorbs tower top sulphur tail gas after tail gas-flue gas heat-exchange unit and the heating of medium temperature flue gas heat exchange, enters Enter tail gas burning furnace, burn and contain SO after heat exchange2Flue gas enters from circulating sulfuration bed desulfurization tower bottom venturi, accelerates in throat After flow-disturbing, the flue gas that entrainment a large amount of dust is contacted with absorbent in divergent segment enters in deduster, is collected by deduster Solid particle returns to be recycled in circulating fluidized bed desulfurization tower, and purifying smoke passes through sack cleaner smoke evacuation chimney.
As a kind of further optimization of sulfur recovery tail gas processing system of the present invention:Tail gas-the flue gas heat-exchange unit is Arc plate type heat exchanger or the board-like heat exchanger of full welding metal.
Beneficial effect
(1)The present invention is by Crouse+SCOT recovery technology of sulfur, tail gas burns and waste heat reclaiming process, semi-dry process flue gas desulphurization Technique is combined, and is administered field using in sulfur recovery tail gas, on the premise of upstream sulphur technique is not influenceed, is made in flue gas SO2Content drops to 50mg/Nm3Hereinafter, the newest discharge standard that even better than country promulgates is reached;
(2)Produced in inventive desulfurization process without waste water, reduce the secondary pollution of waste water.Desulfuration byproduct is preferable in mobile performance Dry state, be defined as general industrial solid waste, can be used as filling, backfill, build the road, can also be used as it is non-burning brick, build material by laying bricks or stones, be fertile Material, alkaline land improving, the mixing material of cement and retarder, comprehensive utilization ratio are high;
(3)The desulfurizing agent primary raw material that the present invention uses is finished product is packed or calcium hydroxide in bulk, and aboundresources is cheap, fortune Row cost is low;
(4)The semi-dry desulphurization system that the present invention uses is run higher than acid dew-point temperature, without anti-corrosion;Exhaust gas temperature 80 ~ 90 DEG C, higher than flue gas dew point temperature(45~50 DEG C)More than 30 DEG C, no white haze phenomenon;
(5)The present invention solve the problems, such as wet desulfurizing process power consumption, water consume it is high, it is perishable, emit white cigarette, technological process is simple, Safeguard and the cost of overhaul is with low.
(6)Arc plate type heat exchanger or the board-like heat exchanger of full welding metal are used in low temperature sulphur tail gas and medium temperature by the present invention The occasion of flue gas heat exchange, effectively prevents dew point corrosion, improves fume afterheat utilization rate, has saved the fuel of tail gas treating unit Consumption.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of sulfur recovery tail gas processing system of the present invention;
Marked in figure:1st, acid gas burner, 2, sour gas waste heat boiler, 3, first-stage condenser, 4, secondary condenser, 5, gas Gas heat exchanger, 6, one-level claus reaction device, 7, two level claus reaction device, 8, three-level condenser, 9, tail gas gathering device, 10, Process Gas heat exchanger, 11, hydrogenation reactor, 12, chilling tower, 13, chilling water-circulating pump, 14, absorption tower, 15, rich solution-lean solution changes Hot device, 16, rich solution circulating pump, 17, lean solution circulating pump, 18, regenerator, 19, reboiler, 20, return tank, 21, tail gas burning furnace, 22nd, exhaust gas heat recovery boiler, 23, tail gas-flue gas heat-exchange unit, 24, calcium hydroxide feed bin, 25, tank, 26, circulating fluidized bed desulfurization tower, 27th, sack cleaner, 28, desulfurization ash silo, 29, desulfurization blower fan, 30, chimney, 31, molten sulfur pond.
Embodiment
With reference to embodiment, the invention will be further described, but protection scope of the present invention not limited to this:The present invention It is applicable not only to two level Crouse+SCOT recovery technology of sulfur, tail gas burns and waste heat reclaiming process and semi-dry process flue gas desulphurization The technique that technique is combined, apply also for SO in other Crouse's recovery technology of sulfur tail gas2Concentration≤1000mg/Nm3Stream Journey, any to the above-mentioned embodiment conspicuously improved or change that those skilled in the art are made, all without beyond this The design of invention and scope of the claims.
As shown in the figure:A kind of sulfur recovery tail gas handling process system:
1)Crouse's+SCOT techniques
Containing H2S sour gas enters the by-product middle pressure steam of sour gas waste heat boiler 2, simultaneously after 1 oxygen debt burning of acid gas burner Reduction Process Gas temperature, Process Gas condense molten sulfur into one-level sulfur condenser 3, are admixed afterwards with pyroprocess gas, into one-level Claus reaction device 6 and two level sulfur condenser 4, molten sulfur enter molten sulfur pond 31, the chilling process gas and one that two level sulfur condenser 4 comes out Level claus reaction 6 medium temperature Process Gas out of device carries out gas-gas heat exchange in gas-gas heat exchanger 5, and it is anti-to enter two level Crouse afterwards Device 7 and three-level sulfur condenser 8 are answered, molten sulfur enters molten sulfur pond 31, and this process makes most of H2S etc. is converted into S.
Process Gas of the Claus tail gases after Process Gas heat exchanger 10 and hydrogenation reaction exchanges heat, with H2It is anti-to be mixed into hydrogenation Device 11 is answered, under hydrogenation catalyst effect, S, SO in tail gas2、COS、CS2Deng generation H2S, dropped by Process Gas heat exchanger 10 Enter chilling tower 12 behind Wen Zhiyue ~ 160 DEG C, required to meet to absorb, chilling tower 12 enters after Process Gas is cooled into ~ 40 DEG C to be inhaled Tower 14 is received, absorbent is MDEA in absorption tower 14(N methyldiethanol amine)Solution, to H2S has good adsorption effect.Absorb Complete H2S MDEA solution regenerates after rich solution-lean solution heat exchanger 15 heats up into regenerator 18, recycles.Regeneration overhead Gas returns to 1 further Recovered sulphur of sour gas burning furnace, improves the sulfur recovery rate of whole technique.
2)Tail gas burns and heat recovery technique
The sulphur tail gas processed of tower top 14 is absorbed after tail gas-flue gas heat-exchange unit 23 and flue gas heat exchange heating, into tail gas burning furnace 21, Greatly save tail gas and burned the fuel quantity of consumption, while flue-gas temperature can be reduced to ~ 200 DEG C, substantially increase the energy Utilization rate, SO in flue gas2Content is ~ 1000mg/Nm3, subsequently into circulating fluidized bed desulfurization tower 26.Tail gas flue gas heat-exchange unit 21 For arc plate type heat exchanger or the board-like heat exchanger of full welding metal, dew point corrosion can be effectively prevented.
3)Semi-dry desulfurizing process
Containing SO2Flue gas enters from the bottom venturi of circulating sulfuration bed desulfurization tower 26, after throat accelerates flow-disturbing, in divergent segment with inhaling Receive agent contact, wherein SO2Absorbed by absorbent, the flue gas for carrying a large amount of dust secretly enters in deduster 27, is collected by deduster 27 The solid particle to get off returns to be recycled in circulating fluidized bed desulfurization tower, and purifying smoke passes through the smoke evacuation chimney of sack cleaner 27 30。
Desulphurization reaction is as follows:
Ca(OH)2+ SO2→CaSO3+H2O
Ca(OH)2 + SO2+1/2O2→CaSO4+H2O
Ca(OH)2 + SO3→CaSO4+H2O
Wherein, semi-dry desulfurizing process comprises the steps of:
a)Absorbent feed bin and induction system
Absorbent uses calcium hydroxide, and the system is made up of calcium hydroxide powder cabin 24, intelligent variable batcher and air-transport system, disappeared Lime silo bottom is provided with fluidizer, and calcium hydroxide is sent into the front end of desulfurizing tower venturi throat by air flume, makes calcium hydroxide Enter desulfurizing tower with after flue gas mixing and vigorous agitation.
According to the SO in chimney outlet measurement purifying smoke2Concentration adjusts the amount of desulfurizing tower inner absorbent.
b)Technique water system
Water injector is arranged on venturi outlet diffusion pipeline section, is mixed after being made water fogging by nozzle with flue gas, reduces desulfurization In tower while cigarette temperature, make SO2Reaction with calcium hydroxide is converted into the reaction of ionic type, improves reaction efficiency.
The backwater amount of nozzle is controlled according to desulfurizing tower outlet temperature, so as to control the injection flow rate of desulfurizing tower 26, so that desulfurization Tower 26 exports fibre selection at ~ 80 DEG C or so.
c)Circulating fluidized bed desulfurization tower
The bottom of desulfurizing tower 26 is Venturi nozzle structure, and gas approach is provided with deflector so that flue gas even into.Process water is noted Enter to the place that desulfurizing tower material turbulent flow is maximum, relative velocity is maximum, ensure that flue gas can cool down, but material again will not be moist.Cigarette Gas and absorbent granules produce the turbulence of fierceness in fluidized-bed reaction section, are fully contacted, and in uphill process, are constantly formed Floccule returns downwards, and floccule constantly disintegrates again by gas lift again in fierce turbulence;Desulfurizing tower top structure is used to Property separation further enhance the return of floccule, further increase the bed density and Ca/S ratios of tower endoparticle, extend The reaction time of absorbent.By the mixing between gas-solid, the heat and mass transport between gas-solid is greatly enhanced, to realize high desulfurization Rate provides basic guarantee.
Desulfurization tower bottom sets urgent dust removing system, and in desulphurization system emergent stopping, substantial amounts of ash can be by air-introduced machine Tap is taken away, and the ash of fraction can deposit to desulfurization tower bottom, by being arranged outside dust removing system.
d)Sack cleaner system
Reacted flue gas is discharged from the top of desulfurizing tower 26, dedusting is carried out into sack cleaner 27, under removing dust device 27 filters The solid particle come, major part return to desulfurizing tower 26 by Desulphurization recirculating system and continue to participate in reaction.A small amount of desulfurization It is grey then desulfurization ash silo 28 is delivered to by air-transport system.
e)Absorbent recirculating system
The purpose of the Desulphurization circulatory system is to establish stable fluid bed, reduce absorbent consumption, to meet desulphurization reaction Need.Two air flumes are set inside every suit Desulphurization circulatory system, will be collected by each ash bucket of desulfurization sack cleaner The Desulphurization come is transmitted back to desulfurizing tower, is entered by desulfurizing tower pressure drop signal come adjustment control valve opening so as to change circular flow And control the ash quantity circulated in the circulatory system.
f)Flue gas system
Enter desulfurizing tower 26 after desulfurization through the flue gas of tail gas waste gas of incineration recovery system cooling, into sack cleaner 27, it By the smoke evacuation chimney 30 of air-introduced machine 29.
g)Desulphurization induction system
Desulphurization in desulfurization ash silo is transported to grey field or other point of use by tank car.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification For the equivalent embodiment of equivalent variations, as long as being the technical spirit pair according to the present invention without departing from technical solution of the present invention content Any simple modification, equivalent change and modification that above example is made, in the range of still falling within technical solution of the present invention.

Claims (8)

  1. A kind of 1. sulfur recovery tail gas handling process, it is characterised in that:Containing H2S sour gas passes through claus reaction and SCOT techniques After processing, sulphur tail gas processed carries out heat exchange with medium temperature flue gas, and the tail gas after heat exchange is through burning, after reclaiming heat, containing SO2Low temperature Flue gas is emitted into air after semidry process desulfurizer purifies.
  2. A kind of 2. sulfur recovery tail gas handling process as claimed in claim 1, it is characterised in that:Containing H2S sour gas fires through sour gas Burn after stove burns and enter two-stage claus reaction system, generate molten sulfur and Claus tail gases, Claus tail gases and reducibility gas Into hydrogenation reactor, the tail gas after hydrogenation reaction sequentially enters chilling tower, absorption tower and regenerator, and regeneration overhead gas returns The further Recovered sulphur of sour gas burning furnace, absorb tower top sulphur tail gas and carried out with entering tail gas burning furnace after medium temperature flue gas heat exchange Burn, burn and contain SO after heat exchange2Medium temperature flue gas enters from circulating sulfuration bed desulfurization tower bottom venturi, accelerates flow-disturbing in throat Afterwards, contacted in divergent segment with absorbent, wherein SO2Absorbed by absorbent, the flue gas for carrying a large amount of dust secretly enters sack cleaner In, returned in circulating fluidized bed desulfurization tower and recycle by the solid particle part that deduster is collected, another part is defeated Hui Ku is delivered to, purifying smoke is emitted into air.
  3. A kind of 3. sulfur recovery tail gas handling process as claimed in claim 2, it is characterised in that:The medium temperature flue gas and sulphur tail processed Temperature is down to 150-200 DEG C after gas heat exchange.
  4. A kind of 4. sulfur recovery tail gas handling process as claimed in claim 2, it is characterised in that:The absorbent is 300-400 The calcium hydroxide powder of mesh, purity more than 90%.
  5. A kind of 5. sulfur recovery tail gas handling process as claimed in claim 2, it is characterised in that:The circulating sulfuration bed desulfurization tower Venturi outlet diffusion pipeline section on be provided with nozzle, after process water is by nozzle atomization, contacted with flue gas and absorbent.
  6. A kind of 6. sulfur recovery tail gas handling process as claimed in claim 5, it is characterised in that:Injection flow rate is adjusted, makes desulfurization cigarette Gas temperature control is at 80 DEG C.
  7. A kind of 7. sulfur recovery tail gas processing system, it is characterised in that:Including acid gas burner, sour gas waste heat boiler, One-level claus reaction device, two level claus reaction device, hydrogenation reactor, chilling tower, absorption tower, regenerator, tail gas burning furnace, Exhaust gas heat recovery boiler, tail gas-flue gas heat-exchange unit and circulating fluidized bed desulfurization tower, sour gas waste heat boiler are connected to the condensation of one-level sulphur Device, the gas of one-level sulfur condenser after the pyroprocess gas blending of acid gas burner discharge with entering one-level claus reaction Device and two level sulfur condenser, the medium temperature process that the chilling process gas that two level sulfur condenser comes out comes out with one-level claus reaction device Gas is exchanged heat in gas-gas heat exchanger, subsequently into two level claus reaction device and three-level sulfur condenser, three-level sulfur condenser The Process Gas that chilling process gas out enters after tail gas gathering device after Process Gas heat exchanger and hydrogenation reaction exchanges heat, with H2It is mixed Closing and enter hydrogenation reactor, the gas after hydrogenation enters chilling tower, absorption tower and regenerator after the cooling of Process Gas heat exchanger, then Raw overhead gas return to sour gas burning furnace, absorb tower top sulphur tail gas by tail gas-flue gas heat-exchange unit and medium temperature flue gas heat exchange After heating, into tail gas burning furnace, burn and contain SO after heat exchange2Flue gas enters from circulating sulfuration bed desulfurization tower bottom venturi, After throat accelerates flow-disturbing, contacted in divergent segment with absorbent, the flue gas for carrying a large amount of dust secretly enters in deduster, by deduster The solid particle collected returns to be recycled in circulating fluidized bed desulfurization tower, and purifying smoke is discharged fume by sack cleaner Chimney.
  8. A kind of 8. sulfur recovery tail gas processing system as claimed in claim 1, it is characterised in that:Tail gas-the flue gas heat-exchange unit For arc plate type heat exchanger or the board-like heat exchanger of full welding metal.
CN201711002579.5A 2017-10-24 2017-10-24 A kind of sulfur recovery tail gas handling process and system Pending CN107684808A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108706547A (en) * 2018-06-22 2018-10-26 山东大学 One kind is with H2S and the device and method that petroleum coke is raw materials recovery sulphur
CN108744930A (en) * 2018-06-13 2018-11-06 哈尔滨工程大学 A kind of system of the high efficiente callback gas fired-boiler fume afterheat based on injector
CN108862207A (en) * 2018-07-23 2018-11-23 洛阳瑞昌环境工程有限公司 A kind of sour gas wet process acid-making process combined with semidry method tail gas desulfurization
CN108910829A (en) * 2018-07-26 2018-11-30 国家能源投资集团有限责任公司 The sulfur recovery method of sour gas sulfur recovery system and sour gas
CN110052111A (en) * 2019-05-09 2019-07-26 安徽皖华环保设备科技有限公司 A kind of sulfur-containing tail gas Cress method
CN110124487A (en) * 2019-05-28 2019-08-16 重庆兴发金冠化工有限公司 A kind of device and its technique of Claus method processing sulfur-containing tail gas
CN113122345A (en) * 2019-12-30 2021-07-16 中国石油化工股份有限公司 System and method for treating high-sulfur natural gas
CN113230826A (en) * 2021-05-17 2021-08-10 安徽徽柏环保科技有限公司 Cadmium-containing flue gas cadmium oxide heavy metal recovery and purification process

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050214925A1 (en) * 2004-03-03 2005-09-29 Chen Jen K Process for the high recovery efficiency of sulfur from an acid gas stream
CN101385943A (en) * 2008-10-17 2009-03-18 中电投远达环保工程有限公司 Deprivation technique based on semi-dry process
CN101418246A (en) * 2008-12-05 2009-04-29 华陆工程科技有限责任公司 Low temperature methanol washing integrated Claus sulfur recovery system and process
CN103706246A (en) * 2012-09-28 2014-04-09 中国电力工程有限公司 Combined desulfuration and demercuration device and method for flue gas circulating fluidized bed
CN105485911A (en) * 2015-12-29 2016-04-13 董龙标 VOC gas combustion-supporting coal-fired heat conduction oil furnace
CN105947992A (en) * 2016-06-02 2016-09-21 山东三维石化工程股份有限公司 SWSR-8 pressurization sulfur recovery process
CN106512650A (en) * 2016-11-23 2017-03-22 北京丰汉工程技术有限公司 Method and system for treating Claus process tail gas

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050214925A1 (en) * 2004-03-03 2005-09-29 Chen Jen K Process for the high recovery efficiency of sulfur from an acid gas stream
CN101385943A (en) * 2008-10-17 2009-03-18 中电投远达环保工程有限公司 Deprivation technique based on semi-dry process
CN101418246A (en) * 2008-12-05 2009-04-29 华陆工程科技有限责任公司 Low temperature methanol washing integrated Claus sulfur recovery system and process
CN103706246A (en) * 2012-09-28 2014-04-09 中国电力工程有限公司 Combined desulfuration and demercuration device and method for flue gas circulating fluidized bed
CN105485911A (en) * 2015-12-29 2016-04-13 董龙标 VOC gas combustion-supporting coal-fired heat conduction oil furnace
CN105947992A (en) * 2016-06-02 2016-09-21 山东三维石化工程股份有限公司 SWSR-8 pressurization sulfur recovery process
CN106512650A (en) * 2016-11-23 2017-03-22 北京丰汉工程技术有限公司 Method and system for treating Claus process tail gas

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CN108744930A (en) * 2018-06-13 2018-11-06 哈尔滨工程大学 A kind of system of the high efficiente callback gas fired-boiler fume afterheat based on injector
CN108706547A (en) * 2018-06-22 2018-10-26 山东大学 One kind is with H2S and the device and method that petroleum coke is raw materials recovery sulphur
CN108862207A (en) * 2018-07-23 2018-11-23 洛阳瑞昌环境工程有限公司 A kind of sour gas wet process acid-making process combined with semidry method tail gas desulfurization
CN108910829A (en) * 2018-07-26 2018-11-30 国家能源投资集团有限责任公司 The sulfur recovery method of sour gas sulfur recovery system and sour gas
CN110052111A (en) * 2019-05-09 2019-07-26 安徽皖华环保设备科技有限公司 A kind of sulfur-containing tail gas Cress method
CN110052111B (en) * 2019-05-09 2021-07-02 安徽皖华环保设备科技有限公司 Cleaning and purifying method for sulfur-containing tail gas
CN110124487A (en) * 2019-05-28 2019-08-16 重庆兴发金冠化工有限公司 A kind of device and its technique of Claus method processing sulfur-containing tail gas
CN113122345A (en) * 2019-12-30 2021-07-16 中国石油化工股份有限公司 System and method for treating high-sulfur natural gas
CN113230826A (en) * 2021-05-17 2021-08-10 安徽徽柏环保科技有限公司 Cadmium-containing flue gas cadmium oxide heavy metal recovery and purification process

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