CN101402884A - Process and apparatus for removing and recovering sulphur in coke oven gas - Google Patents

Process and apparatus for removing and recovering sulphur in coke oven gas Download PDF

Info

Publication number
CN101402884A
CN101402884A CNA2008101604770A CN200810160477A CN101402884A CN 101402884 A CN101402884 A CN 101402884A CN A2008101604770 A CNA2008101604770 A CN A2008101604770A CN 200810160477 A CN200810160477 A CN 200810160477A CN 101402884 A CN101402884 A CN 101402884A
Authority
CN
China
Prior art keywords
sulphur
sulfur
foam
thionizer
pump
Prior art date
Application number
CNA2008101604770A
Other languages
Chinese (zh)
Inventor
李大路
Original Assignee
李大路
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 李大路 filed Critical 李大路
Priority to CNA2008101604770A priority Critical patent/CN101402884A/en
Publication of CN101402884A publication Critical patent/CN101402884A/en

Links

Abstract

The invention discloses a method for removing and recycling the sulphur in the coal gas of a coke oven and a device thereof. A desulfurization device and a sulfur block recycling device are used for carrying out the desulfurizing, regenerating and sulphur recycling on the coal gas of the coke oven. The method of the invention is simpler than the original wet high tower regenerating method; the energy consumption is low; the desulfurization effect can achieve more than 97 percent and the circulation amount of a desulfurization liquid is reduced by more than 10 percent.

Description

Sulphur removes and recovery method and device thereof in the coke-oven gas
Technical field
The present invention relates to a kind of recovery technology of coking industry sulphur.
Background technology
At present in coke-oven gas is produced, because of containing H 2S gas must be with H 2S removes.Desulfurization technology mainly contains dry desulfurization and wet desulphurization two big classes.Dry desulfurization mainly is to adopt solid desulfurating agent to slough sulfide.Wet desulphurization is to adopt the way of solution absorption to remove, and basic solution commonly used has sodium carbonate solution and ammoniacal liquor.
Wet method high tower reclaiming process has generally all been adopted in the desulfurization of coke-oven plant's coke-oven gas.Along with the increasing of national energy-saving and emission-reduction dynamics, more and more higher to the requirement of sulphur content standard in the coal gas.The high tower reclaiming process has been difficult to be up to state standards, exists problems such as investment is big, cost height simultaneously.
Summary of the invention
Problems such as wet desulphurization is not up to standard, investment is big in order to solve, cost height, the present invention proposes a kind of new desulfurization and sulfur recovery method, and the present invention proposes to be used for the device of this method simultaneously.
For achieving the above object, processing step of the present invention is: three steps of desulfurization, regeneration, sulfur recovery that comprise coke-oven gas.
The first step: at first send into thionizer bottom by the not desulfurization coal gas of coke oven production, desulfurization coal gas is not up from the thionizer bottom, the reverse contact of doctor solution under with spraying from the thionizer top, the H in the coal gas 2S is desulfurized liquid and fully absorbs, and removes H 2Coke-oven gas behind the S is discharged from the thionizer top and is entered next procedure.
Second step: absorbed H 2Sulfur-bearing doctor solution behind the S enters the rich solution groove, the sulfur-bearing doctor solution is squeezed into the injector of jet regeneration tower with the rich solution pump, the sulfur-bearing doctor solution when injector sprays and the injector inhaled air be mixed into the jet regeneration tank of jet regeneration tower, mixed have the sulfur-bearing doctor solution of air to carry out oxidation regeneration in jet regeneration tank, generate the sulphur foam, the sulphur floatation of foam in the above; Poor doctor solution behind the oxidation regeneration flows into the lean solution groove through regulator of level, squeezes into former thionizer by lean pump again and carries out desulphurization circulating.
The 3rd step: the sulphur foam that jet regeneration tank is overflowed is stored in the foam chute, with foam pump the sulphur foam is squeezed into header tank, the sulphur foam enters sulfur melting kettle from header tank, by the steam in the sulfur melting kettle chuck foam is heated, be heated to 75-90 ℃ of sulphur foam and be subjected to thermal rupture, the elemental sulfur of the particulate after breaking focuses on to become and separates continuous gathering with former doctor solution greatly, and the doctor solution that has broken away from elemental sulfur enters collector on sulfur melting kettle top, returns thionizer then and circulates; Accumulative simple substance solid sulfur particle heats it simultaneously at continuous accumulative, becomes the sulphur that is easy to the mobile molten state when being heated to 120-130 ℃, opens the sulphur inflow mould of sulfur melting kettle bottom valve with molten state, becomes the solid sulfur piece after the cooling.
The production equipment that above-mentioned Process is used is described below: it comprises desulfurizer and Sulphur element slab 99.5 retrieving arrangement.Desulfurizer is made of following equipment pipe connection successively: thionizer, and---------jet regeneration tower---lean solution groove---desulfur pump, the desulfur pump outlet forms circulation with the pipe connection thionizer to the rich solution pump to the rich solution groove again.
Wherein the jet regeneration tower is made up of body of the tower, injector and jet regeneration tank.
The Sulphur element slab 99.5 retrieving arrangement is made of following equipment pipe connection successively: foam chute---foam pump---header tank---sulfur melting kettle---mould.
Various device recited above is the market existing device.Wherein the jet regeneration tower is to have used the equipment that chemical fertilizer industry is used in semiwater gas desulphurizing technology.
Positively effect of the present invention is:
1, simpler than original wet method high tower reclaiming process, energy consumption is low, and investment cost is low, reduce operator, reduce labour intensity, is convenient to the maintenance of equipment simultaneously, has reduced maintenance, the survey fee of equipment and has used.
2, can also remove the part organosulfur when removing inorganic sulfur, sweetening effectiveness reaches more than 97%, and desulfurization coal gas is up to state standards.
3, the air foam that has reduced doctor solution in the production process is carried secretly, has improved the stability of producing, and the internal circulating load that has reduced doctor solution simultaneously is more than 10%.
With 600,000 tons of/year coke-oven plant's scales is example, presses H in the coke-oven gas 2The content of S is 4.5g/m 3, H in the coal gas after the desulfurization 2The content of S is 200mg/m 3Calculate, can remove H every year 21263.168 tons of S, correspondence can reduce discharging SO 2Nearly more than 2500 ton, environmental benefit is fairly obvious; Recyclable sulphur is more than 1000 ton simultaneously.With present sulphur market conditions is 3000 yuan of/ton calculating, can be every year enterprise increase income 300 surplus ten thousand yuan, can offset the running cost of desulfurization process substantially.
Description of drawings
Further specify technology contents of the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is desulfurizer of the present invention and desulfurization process;
Fig. 2 is the Sulphur element slab 99.5 retrieving arrangement and reclaims process flow diagram.
Among the figure: 1-thionizer, 2-desulfur pump, 3-rich solution groove, 4-rich solution pump, 5-jet regeneration tower, 6-lean solution groove, 7-foam chute, 8-foam pump, 9-sulfur melting kettle, 10-header tank, the 11-mould, 12-doctor solution collector, JQ-is desulfurization coal gas not, TQ-desulfurization coal gas, PM-sulphur foam.
Embodiment
Ginseng Fig. 1 Fig. 2 further describes the embodiment of the invention.
At first purchasing all devices shown in Fig. 1, Fig. 2 is connected and installed.---------desulfur pump 2 is pipe connection successively for jet regeneration tower 5---lean solution groove 6---, and the desulfur pump outlet forms circulation with the pipe connection thionizer again for rich solution pump 4 for rich solution groove 3 to be found out that by Fig. 1 desulfurizer is by thionizer 1.
---sulfur melting kettle 9 pipe connection successively forms foam pump 8---header tank 10---, and the stage valve export of sulfur melting kettle 9 is aimed at sulphur mould 11 to find out that by Fig. 2 the Sulphur element slab 99.5 retrieving arrangement is by foam chute 2.
Sulfide (H in the coke-oven gas as shown in Figure 1 2S) removing process is as follows:
The first step: sent into earlier by the first JQ of the not desulfurization coal gas of coke oven production and to enter thionizer 1 bottom, desulfurization coal gas JQ is not up from thionizer 1 bottom, the reverse contact of doctor solution under with spraying from thionizer 1 top, the H in the coal gas 2S is desulfurized liquid and fully absorbs, and removes H 2Coke oven desulfurization coal gas TQ behind the S discharges from thionizer 1 top and enters next procedure.
Second step: absorbed H 2Sulfur-bearing doctor solution behind the S enters rich solution groove 3, the sulfur-bearing doctor solution is squeezed into the injector of jet regeneration tower 5 with rich solution pump 4, the sulfur-bearing doctor solution when injector sprays and the injector inhaled air be mixed into the regeneration tank of jet regeneration tower 5, mixed have the sulfur-bearing doctor solution of air to carry out oxidation regeneration in jet regeneration tank, generate the sulphur foam, the sulphur floatation of foam in the above.Poor doctor solution behind the oxidation regeneration flows into lean solution groove 6 through regulator of level, squeezes into former thionizer 1 by lean pump 2 again and carries out desulphurization circulating.
The 3rd step (see figure 2): the sulphur foam PM that is overflowed by the regeneration tank of jet regeneration tower 5 is stored in the foam chute 7, with foam pump 8 sulphur foam PM is squeezed into header tank 10, sulphur foam PM enters sulfur melting kettle 9 from header tank 10, by the steam in sulfur melting kettle 9 chucks sulphur foam PM is heated, be heated to 75-90 ℃ of sulphur foam and be subjected to thermal rupture, the elemental sulfur of the particulate after breaking focuses on to become and separates continuous gathering with former doctor solution greatly, what broken away from elemental sulfur enters doctor solution collector 12 on sulfur melting kettle 9 tops, returns thionizer 1 then and circulates; Accumulative simple substance solid sulfur particle heats it simultaneously at continuous accumulative, when being heated to 120-130 ℃, become the sulphur that is easy to the mobile molten state, open the sulphur inflow mould 11 of sulfur melting kettle 9 bottom valves, become the solid sulfur piece after the cooling molten state.

Claims (2)

1, the removing and recovery method of sulphur in a kind of coke-oven gas is characterized in that it comprises desulfurization, regeneration and three steps of sulfur recovery of coke-oven gas, and is specific as follows:
The first step: at first sent into by the not desulfurization coal gas of coke oven production and to enter thionizer bottom, desulfurization coal gas is not up from the thionizer bottom, the reverse contact of doctor solution under with spraying from the thionizer top, the H in the coal gas 2S is desulfurized liquid and fully absorbs, and removes H 2Coke-oven gas behind the S is discharged from the thionizer top and is entered next procedure;
Second step: absorbed H 2Sulfur-bearing doctor solution behind the S enters the rich solution groove, the sulfur-bearing doctor solution is squeezed into the injector of jet regeneration tower with the rich solution pump, the sulfur-bearing doctor solution when injector sprays and the injector inhaled air be mixed into the regeneration tank of jet regeneration tower, mixed have the sulfur-bearing doctor solution of air to carry out oxidation regeneration in jet regeneration tank, generate the sulphur foam, the sulphur floatation of foam in the above; Poor doctor solution behind the oxidation regeneration flows into the lean solution groove through regulator of level, squeezes into former thionizer by lean pump again and carries out desulphurization circulating;
The 3rd step: the sulphur foam that jet regeneration tank is overflowed is stored in the foam chute, with foam pump the sulphur foam is squeezed into header tank, the sulphur foam enters sulfur melting kettle from header tank, by the steam in the sulfur melting kettle chuck foam is heated, be heated to 75-90 ℃ of sulphur foam and be subjected to thermal rupture, the elemental sulfur of the particulate after breaking focuses on to become and separates continuous gathering with former doctor solution greatly, and the doctor solution that has broken away from elemental sulfur enters collector on sulfur melting kettle top, returns thionizer then and circulates; Accumulative simple substance solid sulfur particle heats it simultaneously at continuous accumulative, becomes the sulphur that is easy to the mobile molten state when being heated to 120-130 ℃, opens the sulphur inflow mould of sulfur melting kettle bottom valve with molten state, becomes the solid sulfur piece after the cooling.
2, a kind of device of implementing the described method of claim 1 is characterized in that, it comprises desulfurizer and Sulphur element slab 99.5 retrieving arrangement;
Described desulfurizer is connected and composed with pipeline successively by following equipment: thionizer---rich solution groove---rich solution pump---jet regeneration tower---lean solution groove---desulfur pump, the desulfur pump outlet forms circulation with the pipe connection thionizer again, and wherein the jet regeneration tower is made up of body of the tower, injector and jet regeneration tank;
Described Sulphur element slab 99.5 retrieving arrangement is connected and composed with pipeline successively by following equipment: foam chute---foam pump---header tank---sulfur melting kettle---mould.
CNA2008101604770A 2008-11-16 2008-11-16 Process and apparatus for removing and recovering sulphur in coke oven gas CN101402884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2008101604770A CN101402884A (en) 2008-11-16 2008-11-16 Process and apparatus for removing and recovering sulphur in coke oven gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2008101604770A CN101402884A (en) 2008-11-16 2008-11-16 Process and apparatus for removing and recovering sulphur in coke oven gas

Publications (1)

Publication Number Publication Date
CN101402884A true CN101402884A (en) 2009-04-08

Family

ID=40537054

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2008101604770A CN101402884A (en) 2008-11-16 2008-11-16 Process and apparatus for removing and recovering sulphur in coke oven gas

Country Status (1)

Country Link
CN (1) CN101402884A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101992017A (en) * 2010-09-13 2011-03-30 太原煤气化股份有限公司焦化厂 Device and method for treating sodium salt-containing desulfurization waste liquid in coking industry
CN102381688A (en) * 2011-09-06 2012-03-21 武汉科技大学 Concentrated sulfuric acid preparation method using hydrogen sulfide in manufactured gas
CN102977932A (en) * 2012-12-13 2013-03-20 济南冶金化工设备有限公司 Coke oven gas desulfurization equipment
CN103285722A (en) * 2013-06-06 2013-09-11 浙江晋巨化工有限公司 Highly sulfur-containing pressurized shifted gas wet-process desulphurization technique
CN104512869A (en) * 2013-12-17 2015-04-15 广西鹿寨化肥有限责任公司 Apparatus for improving sulfur recovery ability of sulfur melting system
CN105038865A (en) * 2015-06-12 2015-11-11 宁波科新化工工程技术有限公司 Coal gas wet oxidation desulfurizing tower type regeneration tail gas recycling process and device thereof
CN105542874A (en) * 2016-01-28 2016-05-04 陕西华祥能源科技集团有限公司 Integrated process and device for semicoke coal gas
CN105771593A (en) * 2016-02-25 2016-07-20 宁波金远东石化工程技术有限公司 Method for removing hydrogen sulfide in industrial raw material gas and recycling sulfur
CN108246082A (en) * 2018-01-13 2018-07-06 安徽金禾实业股份有限公司 Waste gas processing method and device in a kind of liquid method desulfurization regeneration system
CN110358559A (en) * 2019-07-25 2019-10-22 内蒙古万众炜业科技环保股份公司 A kind of big partial size coal cracking sub-prime utilizes production technology
WO2020135136A1 (en) * 2018-12-27 2020-07-02 中冶焦耐(大连)工程技术有限公司 Process and device for preparing sulfur pulp by performing vacuum evaporation treatment on coked sulfur foam

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101992017A (en) * 2010-09-13 2011-03-30 太原煤气化股份有限公司焦化厂 Device and method for treating sodium salt-containing desulfurization waste liquid in coking industry
CN102381688A (en) * 2011-09-06 2012-03-21 武汉科技大学 Concentrated sulfuric acid preparation method using hydrogen sulfide in manufactured gas
CN102977932A (en) * 2012-12-13 2013-03-20 济南冶金化工设备有限公司 Coke oven gas desulfurization equipment
CN103285722A (en) * 2013-06-06 2013-09-11 浙江晋巨化工有限公司 Highly sulfur-containing pressurized shifted gas wet-process desulphurization technique
CN104512869A (en) * 2013-12-17 2015-04-15 广西鹿寨化肥有限责任公司 Apparatus for improving sulfur recovery ability of sulfur melting system
CN104512869B (en) * 2013-12-17 2017-01-25 广西鹿寨化肥有限责任公司 Apparatus for improving sulfur recovery ability of sulfur melting system
CN105038865A (en) * 2015-06-12 2015-11-11 宁波科新化工工程技术有限公司 Coal gas wet oxidation desulfurizing tower type regeneration tail gas recycling process and device thereof
CN105542874A (en) * 2016-01-28 2016-05-04 陕西华祥能源科技集团有限公司 Integrated process and device for semicoke coal gas
CN105771593A (en) * 2016-02-25 2016-07-20 宁波金远东石化工程技术有限公司 Method for removing hydrogen sulfide in industrial raw material gas and recycling sulfur
CN108246082A (en) * 2018-01-13 2018-07-06 安徽金禾实业股份有限公司 Waste gas processing method and device in a kind of liquid method desulfurization regeneration system
WO2020135136A1 (en) * 2018-12-27 2020-07-02 中冶焦耐(大连)工程技术有限公司 Process and device for preparing sulfur pulp by performing vacuum evaporation treatment on coked sulfur foam
CN110358559A (en) * 2019-07-25 2019-10-22 内蒙古万众炜业科技环保股份公司 A kind of big partial size coal cracking sub-prime utilizes production technology

Similar Documents

Publication Publication Date Title
CN101665309B (en) Method for treating gasified waste water containing high-concentration phenol and ammonia
CN102309913B (en) Treatment method for stinky waste gas containing sulfides and hydrocarbons
CN100428979C (en) Ammonia desulfurizing process and apparatus with crystallization inside tower
CN101230283B (en) Oil shale retorting process reclaiming method
WO2015103892A1 (en) Method for efficiently removing acid gas sulfide by using desulfurization technology in ammonia method
CN203781842U (en) New sulfur recovery device
CN100395006C (en) Void tower type ammonia desulfurizing process and apparatus
CN201345398Y (en) Regeneration and utilization system for waste lead-acid storage batteries and lead-containing waste
CN103772250B (en) The recovery and treatment method of sulfur-bearing mix waste gas in a kind of viscose fiber production
CN102350203A (en) Process for removing hydrogen-sulfide-containing gas by using rotary power equipment
CN102134519B (en) Combined process for natural gas desulfurization with high resource utilization ratio and good environmental protection effect
CN103706460A (en) Bauxite desulphurization method and device
CN104263421B (en) Coke oven gas purification method
CN102061197B (en) Coke oven gas desulfuration and deamination combined purifying method and special device thereof
CN104857838A (en) System and method for flue gas desulfurization through bipolar membrane electrodialysis
CN101230294A (en) Tannin extract (tannin) desulfurization equipment and technique thereof
CN101333464A (en) Desulphurization process by vacuum ammonia method
EP2657215A1 (en) Method and device for producing methanol
CN101637685A (en) Comprehensive treatment method of sulfur-containing flue gas
CN101700463A (en) Method for desulfurating and denitrating and recovering sulfur resource in closed cycle way
CN105296037A (en) Natural gas continuous mercury removal high efficiency adsorption apparatus and application method
CN103432902B (en) The method of hydrodesulfurization tail gas clean-up recovering liquid hydrocarbon and NaHS
CN102992351B (en) Method and device for purifying ammonia recovered from coal chemical industry wastewater
CN104249994B (en) The treatment process of molten sulfur degasification in recovery technology of sulfur
CN105126380B (en) A kind of coking exhaust gas treating method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20090408