CN101058405A - Method of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation - Google Patents
Method of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation Download PDFInfo
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- CN101058405A CN101058405A CNA2007100720430A CN200710072043A CN101058405A CN 101058405 A CN101058405 A CN 101058405A CN A2007100720430 A CNA2007100720430 A CN A2007100720430A CN 200710072043 A CN200710072043 A CN 200710072043A CN 101058405 A CN101058405 A CN 101058405A
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- Prior art keywords
- hydrogen sulfide
- hydrogen
- ultraviolet radiation
- decomposing
- preparing
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 69
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 229910000037 hydrogen sulfide Inorganic materials 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000005855 radiation Effects 0.000 title claims description 23
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 45
- 239000001257 hydrogen Substances 0.000 claims abstract description 45
- 239000000243 solution Substances 0.000 claims abstract description 28
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract description 21
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000003637 basic solution Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 8
- 230000007935 neutral effect Effects 0.000 claims description 8
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 6
- 229910052753 mercury Inorganic materials 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 5
- 235000010265 sodium sulphite Nutrition 0.000 claims description 3
- DPLVEEXVKBWGHE-UHFFFAOYSA-N potassium sulfide Chemical compound [S-2].[K+].[K+] DPLVEEXVKBWGHE-UHFFFAOYSA-N 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 10
- 239000003054 catalyst Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 abstract description 2
- 239000012670 alkaline solution Substances 0.000 abstract 1
- 229940101006 anhydrous sodium sulfite Drugs 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- 239000005864 Sulphur Substances 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 230000001131 transforming effect Effects 0.000 description 6
- 229910000474 mercury oxide Inorganic materials 0.000 description 3
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(ii) oxide Chemical compound [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000003899 Brassica oleracea var acephala Nutrition 0.000 description 1
- 235000012905 Brassica oleracea var viridis Nutrition 0.000 description 1
- 244000064816 Brassica oleracea var. acephala Species 0.000 description 1
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 description 1
- 241000720974 Protium Species 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- XMYQHJDBLRZMLW-UHFFFAOYSA-N methanolamine Chemical compound NCO XMYQHJDBLRZMLW-UHFFFAOYSA-N 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 238000010671 solid-state reaction Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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- Physical Or Chemical Processes And Apparatus (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a making method of hydrogen through resolving hydrogen sulfide by ultraviolet, which comprises the following steps: a. putting alkaline solution into anhydrous sodium sulfite; immersing the ultraviolet light source into the dielectric solution; b. aerating hydrogen sulfide gas continuously; keeping the aerating velocity of hydrogen sulfide as 0. 5-5 times as the hydrogen generating velocity; c. collecting hydrogen. The method solves the problem of low resolving rate of hydrogen sulfide and hydrogen generating rate under visible and suspending catalyst, which saves energy by over 50% and reduces cost to recycle and utilize sulfur conveniently.
Description
Technical field
The present invention relates to a kind of method of utilizing hydrogen sulfide to prepare hydrogen.
Background technology
Hydrogen sulfide is as the by product of refining of petroleum and the exhaust gas emission in Sweet natural gas contaminate environment not only, and causes the wasting of resources, so the comprehensive utilization of hydrogen sulfide receives much attention.Have processing now, utilize the method for hydrogen sulfide that two classes are arranged: the first kind is that hydrogen sulfide is oxidized to elemental sulfur and water, but has caused the waste of hydrogen resource; Second class is that hydrogen sulfide is decomposed into hydrogen and sulphur.
The method that at present hydrogen sulfide is decomposed into hydrogen and sulphur has high temperature direct heat decomposition method, catalysis thermal decomposition method, microwave method, electrochemical process, photochemical method and super-thermal insulating burning technology, and wherein photochemical method is widely adopted with advantages such as reaction conditions gentleness, power consumption are relatively low.But all adopt at present visible light in the method for photochemistry decomposing hydrogen sulfide, all need to use suspended catalyst, catalyzer not only costs an arm and a leg, inactivation and most poisonous easily in the reaction process, the sulphur that decomposites also is difficult to separate with catalyzer, cause catalyzer to be difficult to recycle waste with the sulphur resource, and hydrogen sulfide rates of decomposing and transforming and hydrogen yield are very low in the method for present photochemistry decomposing hydrogen sulfide, as people such as Naman (Int.J.Hydrogen Energy, 1995,20 (6): 303-307) with TiO
2, CdS and CdSe semiconductive suspension thing be catalyzer, carries out H in containing 20% different aqueous alkanolamines
2The photolysis of S generates H
2, experiment shows in the time of 60 ℃ 50mgTiO
2Be suspended in the 125mL20% carbinolamine aqueous solution, the productive rate maximum of hydrogen also only is 3mL/h; People such as Supriya (Int.J.HydrogenEnergy, 1998,23 (9): 741-744) with CdS-ZnS bicomponent catalyst photocatalysis Decomposition H
2S is supported on basic oxide Li to CdS-ZnS (1: 1)
2On the O-MgO, contain 30wt%Li when loading on 10wt%CdS-ZnS
2The Li of O
2The O-MgO carrier is a catalyzer when reacting, and produces the hydrogen rate and can reach 316 μ mol/h (7.0784mL/h); People such as Kale (Can.J.Chem., 2005,83:527-532) synthesize poly-metal deoxide photocatalyst ZnBiVO with solid state reaction and solution route
4, when being suspended with this catalyzer of 1g in the 500mL distilled water, with the speed feeding H of per minute 10mL
2S, although hydrogen-producing speed is 122mL/h, the hydrogen sulfide rates of decomposing and transforming only is 20.33%.
Summary of the invention
The objective of the invention is in order all to adopt visible light in the method that solves present photochemistry decomposing hydrogen sulfide, all to need to use suspended catalyst and hydrogen sulfide rates of decomposing and transforming and the very low problem of hydrogen yield, and the method for a kind of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation that provides.The method of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation is implemented according to the following steps: a. adds 120～160g sodium sulphite anhydrous 99.3 and makes medium solution in every liter of basic solution, treats after the sodium sulphite anhydrous 99.3 dissolving ultraviolet light source to be immersed medium solution; B. see to feed hydrogen sulfide more continuously after having hydrogen to produce that the feeding speed of hydrogen sulfide remains hydrogen and produces 0.5～5 times of speed; C. collect hydrogen.
Among the present invention ultraviolet light source immersed and just have hydrogen behind the medium solution and produce, the running balance that the feeding speed (hydrogen produces 0.5～5 times of speed) by the control hydrogen sulfide can keep protium in the medium solution.
The hydrogen purity Gao Keda 99% of the present invention's preparation.
The present invention is because of adopting preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation, so heat energy loss is little, energy consumption is low, compares the energy that can save more than 50% with the visible light preparing hydrogen gas by decomposing hydrogen sulfide.The present invention does not adopt catalyzer, has saved production cost, is convenient to the recycling of sulphur yet.
Description of drawings
Fig. 1 is the setting drawing of embodiment 18 preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation.
Embodiment
Embodiment one: the method for present embodiment preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation is implemented according to the following steps: a. adds 120～160g sodium sulphite anhydrous 99.3 and makes medium solution in every liter of basic solution, treats after the sodium sulphite anhydrous 99.3 dissolving ultraviolet light source to be immersed medium solution; B. see to feed hydrogen sulfide more continuously after having hydrogen to produce that the feeding speed of hydrogen sulfide remains hydrogen and produces 0.5～5 times of speed; C. collect hydrogen.
Present embodiment hydrogen sulfide rates of decomposing and transforming is 55%～95%, and producing the hydrogen rate is 4.0～5.1mL/Wh.When present embodiment produce the hydrogen rate when obviously descending (present embodiment decomposing hydrogen sulfide using ultraviolet radiation continuously reached more than 80 hours) can to drip concentration in medium solution be that the hydrochloric acid of 0.5mol/L produces until no yellow mercury oxide (sulphur), add sodium hydroxide after the medium solution filtration again or potassium hydroxide adjusting pH value to 12～13 can be recycled afterwards.
Present embodiment is owing to the employing preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation, so heat energy loss is little, and energy consumption is low, compares the energy that can save more than 50% with the visible light preparing hydrogen gas by decomposing hydrogen sulfide.
Embodiment two: the difference of present embodiment and embodiment one is: add 130～150g sodium sulphite anhydrous 99.3 among the step a in every liter of basic solution.Other step and processing parameter are identical with embodiment one.
Embodiment three: the difference of present embodiment and embodiment one is: add 135～145g sodium sulphite anhydrous 99.3 among the step a in every liter of basic solution.Other step and processing parameter are identical with embodiment one.
Embodiment four: the difference of present embodiment and embodiment one is: add the 140g sodium sulphite anhydrous 99.3 among the step a in every liter of basic solution.Other step and processing parameter are identical with embodiment one.
Embodiment five: the difference of present embodiment and embodiment one is: the power of step a middle-ultraviolet lamp light source is 4～110W.Other step and processing parameter are identical with embodiment one.
Embodiment six: the difference of present embodiment and embodiment one is: the power of step a middle-ultraviolet lamp light source is 6～55W.Other step and processing parameter are identical with embodiment one.
Embodiment seven: the difference of present embodiment and embodiment one is: the power of step a middle-ultraviolet lamp light source is 8～30W.Other step and processing parameter are identical with embodiment one.
Embodiment eight: the difference of present embodiment and embodiment one is: the power of step a middle-ultraviolet lamp light source is 10～15W.Other step and processing parameter are identical with embodiment one.
Embodiment nine: the difference of present embodiment and embodiment one is: the feeding speed of hydrogen sulfide remains hydrogen and produces 0.8～2 times of speed among the step b.Other step and processing parameter are identical with embodiment one.
Embodiment ten: the difference of present embodiment and embodiment one is: the feeding speed of hydrogen sulfide remains hydrogen and produces 1～1.2 times of speed among the step b.Other step and processing parameter are identical with embodiment one.
Embodiment 11: the difference of present embodiment and embodiment one is: can carry out magnetic agitation to medium solution among the step b.Other step and processing parameter are identical with embodiment one.
Embodiment 12: present embodiment and embodiment one, five, six, seven or eights' difference is: the ultraviolet light source among the step a is a low pressure mercury lamp.Other step and processing parameter are identical with embodiment one, five, six, seven or eight.
The present embodiment ultraviolet light source sends mercury 253.7nm characteristic spectral line.
Embodiment 13: the difference of present embodiment and embodiment one is: the total concn of step a basic solution neutral and alkali material is 0.05～5mol/L.Other step and processing parameter are identical with embodiment one.
Embodiment 14: the difference of present embodiment and embodiment one is: the total concn of step a basic solution neutral and alkali material is 0.1～4mol/L.Other step and processing parameter are identical with embodiment one.
Embodiment 15: the difference of present embodiment and embodiment one is: the total concn of step a basic solution neutral and alkali material is 0.5～3mol/L.Other step and processing parameter are identical with embodiment one.
Embodiment 16: the difference of present embodiment and embodiment one is: the total concn of step a basic solution neutral and alkali material is 1～2mol/L.Other step and processing parameter are identical with embodiment one.
Embodiment 17: present embodiment and embodiment one, 13,14,15 or 16 difference are: step a neutral and alkali material is sodium sulphite, sodium hydroxide, potassium sulphide and/or potassium hydroxide.Other step and processing parameter are identical with embodiment one, 13,14,15 or 16.
When being made up of two or more material, present embodiment neutral and alkali material can be arbitrary proportion between each material.
Embodiment 18: the method for present embodiment preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation is implemented according to the following steps: a. adds the 35g sodium sulphite anhydrous 99.3 and makes medium solution in 250mL, concentration are the sodium hydroxide solution of 0.6mol/L, treats after the sodium sulphite anhydrous 99.3 dissolving with power to be that the 10W low pressure mercury lamp immerses medium solution; B. see to feed hydrogen sulfide more continuously after having hydrogen to produce, the feeding speed of hydrogen sulfide remains hydrogen and produces 1.07 times of speed, and can carry out magnetic agitation to medium solution; C. collect hydrogen.
Present embodiment operation 120h on average per hour can collect hydrogen 42mL (it is 45mL/h that hydrogen sulfide feeds speed).The hydrochloric acid that drips concentration behind the present embodiment operation 120h and be 0.5mol/L in medium solution produces until no yellow mercury oxide (sulphur), adds sodium hydroxide or potassium hydroxide after medium solution filters again and regulates pH value to 12～13 and can be recycled afterwards.
Present embodiment hydrogen sulfide rates of decomposing and transforming is 93.3%, and producing the hydrogen rate is 4.2mL/Wh.
The setting drawing of present embodiment preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation as shown in Figure 1,10W low pressure mercury lamp (ultraviolet light source) 3 immerses medium solution 1 among Fig. 1, hydrogen sulfide feeds medium solution 1 by hydrogen sulfide ingress pipe 2, in medium solution 1 bottom magnetic agitation rotor 4 is arranged, hydrogen imports in the hydrogen collecting apparatus 5 by hydrogen delivery line 6.
Embodiment 19: the method for present embodiment preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation is implemented according to the following steps: a. adds the 35g sodium sulphite anhydrous 99.3 and makes medium solution in 250mL, sodium sulphite and potassium hydroxide total concn are the basic solution of 1mol/L, treats after the sodium sulphite anhydrous 99.3 dissolving with power to be that the 10W low pressure mercury lamp immerses medium solution; B. see to feed hydrogen sulfide more continuously after having hydrogen to produce, the feeding speed of hydrogen sulfide remains hydrogen and produces 1.78 times of speed, and can carry out magnetic agitation to medium solution; C. collect hydrogen.
Present embodiment operation 120h on average per hour can collect hydrogen 45mL (it is 80mL/h that hydrogen sulfide feeds speed).The hydrochloric acid that drips concentration behind the present embodiment operation 120h and be 0.5mol/L in medium solution produces until no yellow mercury oxide (sulphur), adds sodium hydroxide or potassium hydroxide after medium solution filters again and regulates pH value to 12～13 and can be recycled afterwards.
Present embodiment hydrogen sulfide rates of decomposing and transforming is 56.25%, and producing the hydrogen rate is 4.5mL/Wh.
Claims (10)
1, a kind of method of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation, the method that it is characterized in that preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation is implemented according to the following steps: a. adds 120～160g sodium sulphite anhydrous 99.3 and makes medium solution in every liter of basic solution, treats after the sodium sulphite anhydrous 99.3 dissolving ultraviolet light source to be immersed medium solution; B. see to feed hydrogen sulfide more continuously after having hydrogen to produce that the feeding speed of hydrogen sulfide remains hydrogen and produces 0.5～5 times of speed; C. collect hydrogen.
2, the method for a kind of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation according to claim 1 is characterized in that adding among the step a 130～150g sodium sulphite anhydrous 99.3 in every liter of basic solution.
3, the method for a kind of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation according to claim 1 is characterized in that the total concn of step a basic solution neutral and alkali material is 0.05～5mol/L.
4, the method for a kind of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation according to claim 3 is characterized in that step a neutral and alkali material is sodium sulphite, sodium hydroxide, potassium sulphide and/or potassium hydroxide.
5, the method for a kind of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation according to claim 1 is characterized in that the power of step a middle-ultraviolet lamp light source is 4～110W.
6, the method for a kind of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation according to claim 1 is characterized in that the power of step a middle-ultraviolet lamp light source is 10～15W.
7,, it is characterized in that the ultraviolet light source among the step a is a low pressure mercury lamp according to the method for claim 1,5 or 6 described a kind of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation.
8, the method for a kind of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation according to claim 1, the feeding speed that it is characterized in that hydrogen sulfide among the step b remain hydrogen and produce 0.8～2 times of speed.
9, the method for a kind of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation according to claim 1, the feeding speed that it is characterized in that hydrogen sulfide among the step b remain hydrogen and produce 1～1.2 times of speed.
10, the method for a kind of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation according to claim 1 is characterized in that can carrying out magnetic agitation to medium solution among the step b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100720430A CN100540457C (en) | 2007-04-17 | 2007-04-17 | A kind of method of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100720430A CN100540457C (en) | 2007-04-17 | 2007-04-17 | A kind of method of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation |
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| Publication Number | Publication Date |
|---|---|
| CN101058405A true CN101058405A (en) | 2007-10-24 |
| CN100540457C CN100540457C (en) | 2009-09-16 |
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|---|---|---|---|
| CNB2007100720430A Expired - Fee Related CN100540457C (en) | 2007-04-17 | 2007-04-17 | A kind of method of preparing hydrogen gas by decomposing hydrogen sulfide using ultraviolet radiation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2445255C2 (en) * | 2010-03-12 | 2012-03-20 | Закрытое акционерное общество Производственная компания "Лаборатория импульсной техники" (ЗАО ПК "ЛИТ") | Method of recycling hydrogen sulphide contained in gases |
-
2007
- 2007-04-17 CN CNB2007100720430A patent/CN100540457C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2445255C2 (en) * | 2010-03-12 | 2012-03-20 | Закрытое акционерное общество Производственная компания "Лаборатория импульсной техники" (ЗАО ПК "ЛИТ") | Method of recycling hydrogen sulphide contained in gases |
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| CN100540457C (en) | 2009-09-16 |
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