CN102019141A - Process for purifying tail gas containing hydrothion by using liquid phase catalytic oxidation method - Google Patents

Process for purifying tail gas containing hydrothion by using liquid phase catalytic oxidation method Download PDF

Info

Publication number
CN102019141A
CN102019141A CN 201010595609 CN201010595609A CN102019141A CN 102019141 A CN102019141 A CN 102019141A CN 201010595609 CN201010595609 CN 201010595609 CN 201010595609 A CN201010595609 A CN 201010595609A CN 102019141 A CN102019141 A CN 102019141A
Authority
CN
China
Prior art keywords
palladium
tail gas
reactor
copper
sulfide
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN 201010595609
Other languages
Chinese (zh)
Inventor
宁平
瞿广飞
施玉琨
张军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunming University of Science and Technology
Original Assignee
Kunming University of Science and Technology
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 Kunming University of Science and Technology filed Critical Kunming University of Science and Technology
Priority to CN 201010595609 priority Critical patent/CN102019141A/en
Publication of CN102019141A publication Critical patent/CN102019141A/en
Pending legal-status Critical Current

Links

Abstract

The invention provides a process for purifying tail gas containing hydrothion, which is energy-saving, environment-friendly, safe and economic. The technical process comprises the following steps: (1) preparation of a catalyst; and (2) the process for purifying the tail gas containing the hydrothion or catalytic oxidation purification process in which the hydrothion absorption and oxidation are carried out step by step. In the purification process provided by the invention, the hydrothion is oxidized to elemental sulfur so as to realize recycling, effectively solve the problem of hydrothion pollution, and provide a practical purification technique for yellow phosphorus exhausting gas, and tail gas and sewage gas of a sealed calcium carbide furnace. The process that hydrothion absorption and oxidation are carried out respectively on desorption of the hydrothion in the yellow phosphorus exhausting gas, the tail gas and sewage gas of the sealed calcium carbide furnace is adopted. The process is characterized in that the purified gas can be still used as the raw materials for other production links. The catalyst in the process has the advantages of high catalytic activity, good stability, good selectivity, and extensive application conditions, is easy to prepare, and is a clear technical process.

Description

A kind of liquid phase catalytic oxidation purification of sulphur-containing hydrogen tail gas method
Technical field
The present invention relates to the air pollution control technique field, particularly relate to the catalyzing, oxidizing and purifying method of hydrogen sulfide gas.
Background technology
Hydrogen sulfide (H 2S) be the foul gas that a kind of height stimulates strong rotten egg smell, the existence of hydrogen sulfide not only can cause equipment and corrosion of piping, catalyst poisoning in the gas, influences product quality, and can seriously be detrimental to health contaminated environment.The stink of hydrogen sulfide is very easily smelt, and the people is 0.01x10 to the susceptibility of hydrogen sulfide -6G/m 3Low concentration (5x10 -6G/m 3Below) hydrogen sulfide mucous membrane and respiratory tract are had spread effect, can cause eye conjunctivitis, very easily absorbed simultaneously by lung and stomach and intestine, poisoning symptom takes place, cause histanoxia.Long-term contact low concentration H 2Headache, tired unable, failure of memory, insomnia, pectoralgia, cough can appear in S, feel sick and symptom such as diarrhoea, also keratitis punctata can occur.H 2S concentration is greater than 20x10 -6G/m 3The time belonged to dangerous values; Reach 200x10 -6G/m 3The time, can make the olfactory nerves complete paralysis; Concentration is greater than (700~1000) x10 -6G/m 3The time, the people can take place immediately stupor and because of respiratory paralysis dead immediately.H 2S can produce in phosphorus production, closed calcium carbide furnace as difficult purifying contaminated thing in technology such as calcium carbide, biogas fermentation, staple fibre, sulfur dye, petroleum refining, coal gas manufacturing, sewage disposal, papermaking and the organic matter decay process and produce.Not only cause environmental pollution, endangered health but also restricted production process control, safety in production and comprehensive utilization of waste materials.
At present, handle H both at home and abroad 2The method of S waste gas is a lot, generally can be divided into dry method, wet method and bioanalysis.
Dry method is to utilize H 2The reproducibility of S and combustibility are so that fixedly oxidant or absorbent come desulfurization or directly burning.Dry desulfurization is usually used in the processing of low sulfurous gas, and its equipment is simple, but equipment is huger, and needs a plurality of equipment handover operations, and desulfurizing agent is non-renewable, and cost is higher.This method comprises improved Claus method, iron processes, iron oxide process, zinc oxide method, manganese ore method, active carbon adsorption, sieve method, ion-exchange fibre method, electronics card irradiation, membrane separation process etc., desulfurizer therefor, catalyst have active carbon, iron oxide, zinc oxide, manganese dioxide and bauxite, also have molecular sieve, ion-exchange fibre etc. in addition.General recyclable sulphur, sulfur dioxide, sulfuric acid and sulfate.Patent CN1081930A (publication number) has announced that a kind of improved complex iron removes the technology of sulfide from admixture of gas, a kind of doctor solution and corresponding sulfur removal technology thereof by the multicomponent combination is provided, it is big to have saturated sulfur capacity, the absorption efficiency height, but desulfurizing agent needs regular regeneration or replacing, is not very economical generally.
Compare advantage such as wet desulphurization has that floor space is little, equipment is simple, easy to operate, small investment with dry desulfurization.Press the difference of desulfurizing agent, wet desulphurization can be divided into liquid absorption method and absorb oxidizing process two classes.The physical chemistry absorption process that the chemical absorption method that utilizes alkaline solution, the Physical Absorption method of utilizing organic solvent is arranged in the liquid absorption method and utilize Physical Absorption and chemical solvent simultaneously.Patent CN101062460A (publication number) has announced a kind of method of removing hydrogen sulfide from the mist that comprises low concentration hydrogen sulphide gas, and absorption liquid is selected from N-Propylene Glycol amine aqueous solution, monoethanolamine solution, diethanolamine solution and their mixture.This method equipment is simple, the desulfurizing agent cheapness, but desulfuration efficiency is not high, and pollutant is only transferred to liquid phase by gas phase; And absorb oxidizing process generally all is to add oxidant or catalyst in absorption liquid, makes the H of absorption 2S is oxidized to sulphur and makes solution regeneration in oxidizing tower (being regenerator).Absorption liquid commonly used has the aqueous solution of sodium carbonate, potash and ammonia, the aqueous solution or water slurry that oxidant commonly used or catalyst are made up of iron oxide, thioarsenate, iron cyanogen compound double salt and organic catalyst.
Bioanalysis is that the processing low concentration foul gas that gets up of developed recently is (as H 2S) comparatively effective method.Patent CN1218421A (publication number) has announced a kind of gas cleaning method that contains hydrogen sulfide, wherein use can sulfide oxidation autotrophy sulfide-oxidizing bacteria under high pH, handle the cleaning solution of using, thereby obtain elementary sulfur.Elementary sulfur is separated, and treated cleaning solution is looped back in the gas scrubbing step, desulfuration efficiency is up to 98%, even can reach 100%.Contain H with the bioanalysis processing 2S waste gas can be handled the gas of atm number, and the operational processes unit is controlled easily, and biomass accumulative total guarantees effective contaminant degradation ability, so it has certain application value.But equipment is many, and the cost height need add nutriments such as phosphorus, potassium, is not suitable for handling the H that contains of low concentration 2S gas.
Summary of the invention
The object of the present invention is to provide a kind of energy-saving and environmental protection, safe, the economic method that from sulfide hydrogen tail gas, removes hydrogen sulfide.Hydrogen sulfide is oxidized to elemental sulfur and realizes resource, and the pollution problem of also effectively removing hydrogen sulfide also provides practical purification techniques for yellow phosphoric tail gas, closed calcium carbide furnace tail gas and biogas simultaneously.
Liquid phase catalytic oxidation purification of sulphur-containing hydrogen tail gas method of the present invention is achieved in that and it is characterized in that containing following processing step:
1. preparation of catalysts:
Get cupric and palladium-containing catalyst respectively stirring and dissolving in concentration is 0%~30% acid, mix, filter the mixed catalytic agent solution, wherein the palladium mass concentration is 0.05~50g/L, copper mass concentration is 0.1~150g/L;
2. hydrogen sulfide absorption and the oxidation catalyzing, oxidizing and purifying technology of carrying out step by step:
Sulfide hydrogen tail gas is reacted with the mixed catalytic agent solution of being prepared that contains palladium, copper in 4~100 ℃ in the absorption tower, become the palladium simple substance of indissoluble after part palladium ion and the hydrogen sulfide haptoreaction, enter liquid phase and hydrogen sulfide is oxidized to elemental sulfur; Meanwhile, partial vulcanization hydrogen and copper ion generate the copper sulfide of indissoluble, and the generation of palladium simple substance and copper sulfide can make catalyst solution become black suspension,
The mixed catalytic agent solution that will absorb hydrogen sulfide is then sent into oxidizing tower and is carried out oxidation, blasts air or oxygen in oxidizing tower, and the hydrogen sulfide that is absorbed in the solution is existed with dissolved state, becomes elemental sulfur with oxygen generation oxidation reaction; Palladium simple substance then is oxidized to the divalence palladium ion; Copper sulfide is converted into copper sulphate, and the mixed solution after the oxidation is discharged from oxidizing tower, sends into the absorption tower again and recycles.
The acid of step described in 1. is hydrochloric acid, nitric acid or sulfuric acid, and described copper and palladium-containing catalyst are palladium bichloride or copper chloride.
The absorption tower of step described in 2. is turbulent contact absorber, tray absorption columns, bubble absorbing tower, venturi scrubber or stirs bubble absorbing tower that described oxidizing tower is packed column reactor, rapid ball absorption reactor thermally, plate-type reactor, bubbling reactor, falling film reactor or stirs bubbling reactor.
A kind of liquid phase catalytic oxidation purification of sulphur-containing hydrogen tail gas method is characterized in that containing following processing step:
1. preparation of catalysts:
Get cupric and palladium-containing catalyst respectively stirring and dissolving in concentration is 0%~30% acid, mix, filter the mixed catalytic agent solution, wherein the palladium mass concentration is 0.05~50g/L, copper mass concentration is 0.1~150g/L;
2. oxygenating-catalyzing, oxidizing and purifying technology:
Enter that the mol ratio of oxygen and hydrogen sulfide should if oxygen content is on the low side, adopt air or oxygen to mix with sulfide hydrogen tail gas greater than 2 in the sulfide hydrogen tail gas of catalyst oxidation reactor, the mol ratio that makes oxygen and hydrogen sulfide is greater than 2,
The above-mentioned sulfide hydrogen tail gas that regulates oxygen content and the mixed catalytic agent solution that contains palladium, copper that is mixed with are reacted in 4~100 ℃ in reactor, and hydrogen sulfide is oxidized to elemental sulfur and enters liquid phase in solution.
The acid of step described in 1. is hydrochloric acid, nitric acid or sulfuric acid, and described copper and palladium-containing catalyst are palladium bichloride or copper chloride.
The reactor of step described in 2. is packed column reactor, rapid ball absorption reactor thermally, plate-type reactor, bubbling reactor, falling film reactor or stirs bubbling reactor.
The advantage that present technique is compared with prior art had
1. the hydrogen sulfide that contains in the active height of catalyst of the present invention, good stability, the good yellow phosphoric tail gas of selectivity and the closed calcium carbide furnace tail gas is its difficult point of carrying out recycling as carbonizer's unstripped gas, and catalyst of the present invention can make the removal efficiency of hydrogen sulfide keep 100% for a long time in the purification of yellow phosphoric tail gas and closed calcium carbide furnace tail gas, the yellow phosphoric tail gas after the purification satisfy as in carbonizer's unstripped gas to the requirement of hydrogen sulfide content.The high activity, high stability and the high selectivity that possess as good catalyst have been shown;
2. catalyst of the present invention is prepared easily, the extensive different operating conditional request that adapts to temperature, pH, flow, oxygen concentration and the concentration of hydrogen sulfide scope of broad of application conditions, and hydrogen sulfide removes in the sulfide hydrogen tail gas that can be applicable to produce in yellow phosphoric tail gas, closed calcium carbide furnace tail gas, biogas fermentation, staple fibre, sulfur dye, petroleum refining, coal gas manufacturing, sewage disposal, the paper-making process;
3. the purification of hydrogen sulfide is to carry out under 4~100 ℃ cryogenic conditions among Qing Jie technical matters route the present invention, and hydrogen sulfide is oxidized to elemental sulfur in the purification process, and catalyst can be recycled, and has reduced the purification cost.
Description of drawings
Fig. 1 is that the present invention extracts H 2The S process flow diagram.
Among the figure: the 1-water scrubber; The 2-absorption tower; The 3-regenerator; The 4-centrifuge; The 5-washing water pump; 6-rich solution pump; The 7-lean pump; The 8-poor rich liquid heat exchanger; 9-lean solution cooler.
The specific embodiment
Technology contents of the present invention is as follows:
1) the required raw material of catalyst preparation
1. Cu-contained catalyst: elemental copper, cupric oxide, copper sulphate, copper nitrate, copper chloride, Schweinfurt green;
2. palladium-containing catalyst: simple substance palladium, palladium sulfate, palladium nitrate, palladium, palladium bichloride;
3. solvent: include hydrochloric acid, nitric acid or sulfuric acid;
2) object of the present invention's processing
Generation contains H 2The purification of the tail gas of S gas, include yellow phosphoric tail gas (tail gas consist of CO 85%~90%, CO 21~4%, H 21%~8%, N 22%~5%, H 2O 5%, H 2S 60~3000mg/m 3), (typical tail gas consists of (percent by volume): CO 80%~85%, H to closed calcium carbide furnace tail gas 27%, CO 21.5%, O 22%, N 27%, H 2S 100~850mg/m 3), biogas fermentation (CH 450%~80%, CO 220%~40%, N 20%~5%, H 21%, O 20.4%, H 2S 0.1%~3%), produce in the process such as staple fibre, sulfur dye, petroleum refining, coal gas manufacturing, sewage disposal, papermaking contain H 2S tail gas.
3) technical process of the present invention
1. preparation of catalysts
Get cupric and palladium-containing catalyst respectively stirring and dissolving in concentration is 0%~30% acid (hydrochloric acid or nitric acid or sulfuric acid), mix, filter the mixed catalytic agent solution.Wherein the palladium mass concentration is 0.05~50g/L, and copper mass concentration is 0.1~150g/L; Is good with palladium bichloride, copper chloride as catalyst, and acid is good with hydrochloric acid.
2. the process for purifying process of hydrogen sulfide in the sulfide hydrogen tail gas
Technology one: the catalyzing, oxidizing and purifying technology that hydrogen sulfide absorption and oxidation are carried out step by step
Owing to be rich in carbon monoxide in yellow phosphoric tail gas, the closed calcium carbide furnace tail gas, after purifying, can be used as valuable carbonizer's unstripped gas.Be rich in methane in the biogas fermentation, after purifying, can be used as fuel gas.If by purifying again after the oxygenating, then may also reduce the selectivity of catalyzing, oxidizing and purifying simultaneously owing to the oxygenating process is sneaked into more foreign gas.Therefore, to the technology that can adopt hydrogen sulfide absorption and oxidation to carry out step by step that removes of yellow phosphoric tail gas, closed calcium carbide furnace tail gas, hydrogen sulfide in methane, the feature of this technology is that purified gas is also as the raw material of other production links.
Sulfide hydrogen tail gas is reacted with the mixed catalytic agent solution of being prepared that contains palladium, copper in 4~100 ℃ in absorption tower (turbulent contact absorber or tray absorption columns or bubble absorbing tower or venturi scrubber or stirring bubble absorbing tower), become the palladium simple substance of indissoluble after part palladium ion and the hydrogen sulfide haptoreaction, enter liquid phase and hydrogen sulfide is oxidized to elemental sulfur; Meanwhile, partial vulcanization hydrogen and copper ion generate the copper sulfide of indissoluble.The generation of palladium simple substance and copper sulfide can make catalyst solution become black suspension.
The mixed catalytic agent solution that will absorb hydrogen sulfide is then sent into oxidizing tower (packed column reactor or rapid ball absorption reactor thermally or plate-type reactor or bubbling reactor or falling film reactor or stir bubbling reactor) and is carried out oxidation.In oxidizing tower, blast air or oxygen, make the hydrogen sulfide (existing) that is absorbed in the solution become elemental sulfur with oxygen generation oxidation reaction with dissolved state; Palladium simple substance then is oxidized to the divalence palladium ion; Copper sulfide is converted into copper sulphate.Mixed solution after the oxidation is discharged from oxidizing tower, sends into the absorption tower again and recycles.
Technology two: oxygenating-catalyzing, oxidizing and purifying technology
At the H that contains that produces in the processes such as staple fibre, sulfur dye, petroleum refining, coal gas manufacturing, sewage disposal, papermaking 2S tail gas, the tail gas industrial utilization of generation is worth not high, directly effluxes after purifying usually, so can take oxygenating-catalytic oxidation technology according to oxygen content in these tail gas and hydrogen sulfide content situation.
For guaranteeing hydrogen sulfide sufficient oxidation, purification in the liquid phase catalytic oxidation process, the mol ratio that enters oxygen and hydrogen sulfide in the sulfide hydrogen tail gas of catalyst oxidation reactor should be greater than 2, if oxygen content is on the low side, can adopt air or oxygen to mix with sulfide hydrogen tail gas, the mol ratio that makes oxygen and hydrogen sulfide is greater than 2.
The above-mentioned sulfide hydrogen tail gas that regulates oxygen content is reacted in 4~100 ℃ in reactor (packed column reactor or rapid ball absorption reactor thermally or plate-type reactor or bubbling reactor or falling film reactor or stirring bubbling reactor) with the mixed catalytic agent solution that contains palladium, copper that is mixed with, hydrogen sulfide is oxidized to elemental sulfur and enters liquid phase in solution, thereby realizes removing from sulfide hydrogen tail gas the purpose of hydrogen sulfide.
The principle of liquid phase catalytic oxidation is:
Embodiment 1: get the 2.1kg copper chloride and be dissolved in the 5L water, the 0.2kg palladium bichloride is dissolved in the hydrochloric acid of 5L 10%, both is mixed again, and filters, and discards filter residue, and gained filtrate is the mixed catalytic agent solution, and is standby.
Will be through being that main component, hydrogen sulfide content are 500~1150mg/m with the carbon monoxide after the alkali cleaning 3Yellow phosphoric tail gas with 10m 3/ h flow velocity feeds in the tower from spraying bottom, absorption tower, and the mixed catalytic agent solution 2L/min for preparing sprays into from spraying top, absorption tower, and gas-liquid conversed contact is in 20~40 ℃ of reactions down of tower temperature.The mixed catalytic agent solution that has absorbed hydrogen sulfide send into stir bubbling reactor and 4L/min flow velocity air at 20~40 ℃ of catalytic oxidations, it is recycling that the absorption liquid after the oxidation pumps into the absorption tower of spraying with pump again.After measured, hydrogen sulfide content is 0mg/m in the yellow phosphoric tail gas behind the absorption cleaning of spraying absorption tower 3
Embodiment 2: get in the hydrochloric acid that the 37.6g cupric oxide is dissolved in 5L 20%, the 50.0g palladium bichloride is dissolved in the 55L water, and both are mixed, and filters, and discards filter residue, and gained filtrate is the mixed catalytic agent solution, and is standby.
Will be through being that main component, hydrogen sulfide content are 100~850mg/m with the carbon monoxide after the dust removal process 3Closed calcium carbide furnace tail gas with 10m 3/ h flow velocity feeds from the venturi scrubber bottom, contacts with the mixed catalytic agent solution is reverse, reacts under 32 ℃.The mixed catalytic agent solution that has absorbed hydrogen sulfide is sent into and is stirred in the bubbling reactor at 32 ℃ down with the blowback venturi scrubber is recycling again behind the air catalytic oxidation of 8L/min flow velocity.After measured, hydrogen sulfide content is 0mg/m in the closed calcium carbide furnace tail gas after venturi scrubber purifies 3, and absorb operation continuously through 50h, after the purification of discharging by bubbling absorption column in the gas hydrogen sulfide content still be 0mg/m 3
Embodiment 3: get the 23.3g copper nitrate and be dissolved in the 0.9L water, 0.6g palladium simple substance is dissolved in the nitric acid of 0.1L 20%, and above-mentioned two kinds of solution are mixed, and filters, and obtains the mixed catalytic agent solution.It is standby in the bubble absorbing tower that the mixed catalytic agent solution is packed into.
Regulate sulfide hydrogen 1450mg/m 3Simulation gas in oxygen content, the mol ratio that makes oxygen and hydrogen sulfide is greater than 2, to simulate gas then and feed bubble absorbing tower with the speed of 20L/min and react with the mixed catalytic agent solution at 20 ℃, hydrogen sulfide content remains 0mg/m in the tail gas after the purification in 9h 3

Claims (6)

1. liquid phase catalytic oxidation purification of sulphur-containing hydrogen tail gas method is characterized in that containing following processing step:
1. preparation of catalysts:
Get cupric and palladium-containing catalyst respectively stirring and dissolving in concentration is 0%~30% acid, mix, filter the mixed catalytic agent solution, wherein the palladium mass concentration is 0.05~50g/L, copper mass concentration is 0.1~150g/L;
2. hydrogen sulfide absorption and the oxidation catalyzing, oxidizing and purifying technology of carrying out step by step:
Sulfide hydrogen tail gas is reacted with the mixed catalytic agent solution of being prepared that contains palladium, copper in 4~100 ℃ in the absorption tower, become the palladium simple substance of indissoluble after part palladium ion and the hydrogen sulfide haptoreaction, enter liquid phase and hydrogen sulfide is oxidized to elemental sulfur; Meanwhile, partial vulcanization hydrogen and copper ion generate the copper sulfide of indissoluble, and the generation of palladium simple substance and copper sulfide can make catalyst solution become black suspension,
The mixed catalytic agent solution that will absorb hydrogen sulfide is then sent into oxidizing tower and is carried out oxidation, blasts air or oxygen in oxidizing tower, and the hydrogen sulfide that is absorbed in the solution is existed with dissolved state, becomes elemental sulfur with oxygen generation oxidation reaction; Palladium simple substance then is oxidized to the divalence palladium ion; Copper sulfide is converted into copper sulphate, and the mixed solution after the oxidation is discharged from oxidizing tower, sends into the absorption tower again and recycles.
2. a kind of liquid phase catalytic oxidation purification of sulphur-containing hydrogen tail gas method according to claim 1 is characterized in that: the acid of step described in 1. is hydrochloric acid, nitric acid or sulfuric acid, and described copper and palladium-containing catalyst are palladium bichloride or copper chloride.
3. a kind of liquid phase catalytic oxidation purification of sulphur-containing hydrogen tail gas method according to claim 1, it is characterized in that: the absorption tower of step described in 2. is turbulent contact absorber, tray absorption columns, bubble absorbing tower, venturi scrubber or stirs bubble absorbing tower that described oxidizing tower is packed column reactor, rapid ball absorption reactor thermally, plate-type reactor, bubbling reactor, falling film reactor or stirs bubbling reactor.
4. liquid phase catalytic oxidation purification of sulphur-containing hydrogen tail gas method is characterized in that containing following processing step:
1. preparation of catalysts: get cupric and palladium-containing catalyst respectively stirring and dissolving in concentration is 0%~30% acid, mix, filter the mixed catalytic agent solution, wherein the palladium mass concentration is 0.05~50g/L, copper mass concentration is 0.1~150g/L;
2. oxygenating-catalyzing, oxidizing and purifying technology: enter that the mol ratio of oxygen and hydrogen sulfide should if oxygen content is on the low side, adopt air or oxygen to mix with sulfide hydrogen tail gas greater than 2 in the sulfide hydrogen tail gas of catalyst oxidation reactor, the mol ratio that makes oxygen and hydrogen sulfide is greater than 2,
The above-mentioned sulfide hydrogen tail gas that regulates oxygen content and the mixed catalytic agent solution that contains palladium, copper that is mixed with are reacted in 4~100 ℃ in reactor, and hydrogen sulfide is oxidized to elemental sulfur and enters liquid phase in solution.
5. a kind of liquid phase catalytic oxidation purification of sulphur-containing hydrogen tail gas method according to claim 4 is characterized in that: the acid of step described in 1. is hydrochloric acid, nitric acid or sulfuric acid, and described copper and palladium-containing catalyst are palladium bichloride or copper chloride.
6. a kind of liquid phase catalytic oxidation purification of sulphur-containing hydrogen tail gas method according to claim 4 is characterized in that: the reactor of step described in 2. is packed column reactor, rapid ball absorption reactor thermally, plate-type reactor, bubbling reactor, falling film reactor or stirs bubbling reactor.
CN 201010595609 2010-12-20 2010-12-20 Process for purifying tail gas containing hydrothion by using liquid phase catalytic oxidation method Pending CN102019141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010595609 CN102019141A (en) 2010-12-20 2010-12-20 Process for purifying tail gas containing hydrothion by using liquid phase catalytic oxidation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010595609 CN102019141A (en) 2010-12-20 2010-12-20 Process for purifying tail gas containing hydrothion by using liquid phase catalytic oxidation method

Publications (1)

Publication Number Publication Date
CN102019141A true CN102019141A (en) 2011-04-20

Family

ID=43861170

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010595609 Pending CN102019141A (en) 2010-12-20 2010-12-20 Process for purifying tail gas containing hydrothion by using liquid phase catalytic oxidation method

Country Status (1)

Country Link
CN (1) CN102019141A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102631832A (en) * 2012-03-21 2012-08-15 浙江丽晶化学有限公司 Slight hydrogen sulfide removal device and method in acidic gas
CN103111169A (en) * 2013-03-14 2013-05-22 济钢集团有限公司 Gas desulfurization method and automatically controlled desulfurization device
CN109381985A (en) * 2018-11-21 2019-02-26 北京石油化工学院 A kind of purifying treatment method of natural gas
CN109603434A (en) * 2018-12-12 2019-04-12 中国成达工程有限公司 A kind of purification process technique and device of yellow phosphoric tail gas

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4474739A (en) * 1983-06-29 1984-10-02 Teledyne Industries, Inc. Method for removing gaseous pollutants in highly dilute concentrations from air at room temperatures
CN1251079A (en) * 1997-12-29 2000-04-19 埃勒夫勘探产品公司 Method and catalyst for direct sulphur oxidation of H2S contained in a gas
CN1398658A (en) * 2002-04-26 2003-02-26 昆明理工大学 Catalytic yellow phosphorus tail gas oxidizing and purifying method in fixed bed
CN101045195A (en) * 2006-12-08 2007-10-03 昆明理工大学 Liquid phase catalytic oxidation method for purifying tail gas containing phosphine
CN101269297A (en) * 2008-05-21 2008-09-24 昆明理工大学 Catalytic oxidation purification method for hydrogen cyanide in industrial waste gas

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4474739A (en) * 1983-06-29 1984-10-02 Teledyne Industries, Inc. Method for removing gaseous pollutants in highly dilute concentrations from air at room temperatures
CN1251079A (en) * 1997-12-29 2000-04-19 埃勒夫勘探产品公司 Method and catalyst for direct sulphur oxidation of H2S contained in a gas
CN1398658A (en) * 2002-04-26 2003-02-26 昆明理工大学 Catalytic yellow phosphorus tail gas oxidizing and purifying method in fixed bed
CN101045195A (en) * 2006-12-08 2007-10-03 昆明理工大学 Liquid phase catalytic oxidation method for purifying tail gas containing phosphine
CN101269297A (en) * 2008-05-21 2008-09-24 昆明理工大学 Catalytic oxidation purification method for hydrogen cyanide in industrial waste gas

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《中国工程科学》 20050630 宁平等 催化氧化净化黄磷尾气中的磷和硫 第7卷, 第6期 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102631832A (en) * 2012-03-21 2012-08-15 浙江丽晶化学有限公司 Slight hydrogen sulfide removal device and method in acidic gas
CN103111169A (en) * 2013-03-14 2013-05-22 济钢集团有限公司 Gas desulfurization method and automatically controlled desulfurization device
CN109381985A (en) * 2018-11-21 2019-02-26 北京石油化工学院 A kind of purifying treatment method of natural gas
CN109603434A (en) * 2018-12-12 2019-04-12 中国成达工程有限公司 A kind of purification process technique and device of yellow phosphoric tail gas
CN109603434B (en) * 2018-12-12 2021-08-20 中国成达工程有限公司 Yellow phosphorus tail gas purification treatment process and device

Similar Documents

Publication Publication Date Title
Wiheeb et al. Present technologies for hydrogen sulfide removal from gaseous mixtures
CN102350197B (en) Fume desulfurizing and denitrifying device based on magnesia and method
CN104249995B (en) Reduce sulfur recovery facility SO 2the method of emission concentration
CN102847431B (en) Method for treating claus technical tail gas
CN104555940A (en) Sulfur recovery process for reducing SO2 emission
CN100482322C (en) Liquid phase catalytic oxidation method for purifying tail gas containing phosphine
CN101269297B (en) Catalytic oxidation purification method for hydrogen cyanide in industrial waste gas
CN102019141A (en) Process for purifying tail gas containing hydrothion by using liquid phase catalytic oxidation method
CN103977682A (en) Simultaneous desulfurization and denitrification method for flue gas
CN102008880A (en) Method for realizing integrated desulfurization and denitrification and product recovery based on magnesium-ammonium method
CN106310943B (en) A kind of sodium sulfite desulfurization regeneration and recycling sulfur dioxide device and application
CN102380399A (en) Mixed catalyst and method for catalytic purification of waste gas containing hydrogen phosphide and hydrogen sulfide
CN101979130A (en) Method for removing hydrogen sulfide from industrial gas in recycling way
CN106744714A (en) A kind of technique that sulfur dioxide Sulphuric acid is reclaimed from flue gas
CN103877841A (en) Integrated purification and recycling process for sintering smoke pollutants
CN103877840A (en) Integral purification process of pollutants in sintering flue gas
CN102371110A (en) Flue gas desulfurization and denitration method
CN102049184A (en) Method for treatment of high-SO2-concentration and low-oxygen-content flue gas
CN101745312A (en) Catalytic oxidation sweetening and coal ash utilizing method
CN103585869A (en) Flue gas purifying method with recyclable alkali absorption liquid
CN102049185B (en) Method for treatment of refinery high-SO2-concentration and low-oxygen-content flue gas
CN107537297B (en) Clean and environment-friendly flue gas circulating desulfurization process
CN103879970B (en) A kind ofly from flue gas, reclaim the production technique that sulfurous gas produces sulphur
CN103203171A (en) Technology for removing SO2 in smoke through recovery method
CN108970353B (en) Comprehensive desulfurization and denitrification method for catalytic flue gas and ammonia-containing acid gas

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20110420

C02 Deemed withdrawal of patent application after publication (patent law 2001)