EP2964364A1 - Agent absorbant, procédé pour le fabriquer, ainsi que procédé et dispositif de séparation de sulfure d'hydrogène d'avec un gaz acide - Google Patents

Agent absorbant, procédé pour le fabriquer, ainsi que procédé et dispositif de séparation de sulfure d'hydrogène d'avec un gaz acide

Info

Publication number
EP2964364A1
EP2964364A1 EP14707959.4A EP14707959A EP2964364A1 EP 2964364 A1 EP2964364 A1 EP 2964364A1 EP 14707959 A EP14707959 A EP 14707959A EP 2964364 A1 EP2964364 A1 EP 2964364A1
Authority
EP
European Patent Office
Prior art keywords
absorbent
gas
absorber
metal salt
amino acid
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.)
Ceased
Application number
EP14707959.4A
Other languages
German (de)
English (en)
Inventor
Kevin BRECHTEL
Ralph Joh
Markus Kinzl
Hans Wolfgang NICKELFELD
Katrin RAAKE
Matthias RENGER
Henning Schramm
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP2964364A1 publication Critical patent/EP2964364A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/14—Separation 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 by absorption
    • B01D53/1493—Selection of liquid materials for use as absorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/14—Separation 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 by absorption
    • B01D53/1418—Recovery of products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/14—Separation 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 by absorption
    • B01D53/1425—Regeneration of liquid absorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/14—Separation 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 by absorption
    • B01D53/1456—Removing acid components
    • B01D53/1462—Removing mixtures of hydrogen sulfide and carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/14—Separation 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 by absorption
    • B01D53/1456—Removing acid components
    • B01D53/1468—Removing hydrogen sulfide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
    • C01B17/05—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by wet processes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10—Working-up natural gas or synthetic natural gas
    • C10L3/101—Removal of contaminants
    • C10L3/102—Removal of contaminants of acid contaminants
    • C10L3/103—Sulfur containing contaminants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/20—Organic absorbents
    • B01D2252/204—Amines
    • B01D2252/20494—Amino acids, their salts or derivatives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/60—Additives
    • B01D2252/602—Activators, promoting agents, catalytic agents or enzymes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/304—Hydrogen sulfide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/05—Biogas
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/727—Treatment of water, waste water, or sewage by oxidation using pure oxygen or oxygen rich gas
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/74—Treatment of water, waste water, or sewage by oxidation with air
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/101—Sulfur compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/16—Regeneration of sorbents, filters
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Definitions

  • the invention relates to an absorbent for the absorption of hydrogen sulfide (H2S) from an acidic gas.
  • the invention further relates to a method for separating H2S) from acidic gases.
  • the invention also relates to a device on which the method according to the invention can be carried out.
  • natural gas is not of a quality which allows direct use, e.g. in a gas turbine, for pipeline transport or in a blockage power plant (CHP). Therefore, sour gas streams with too low quality are often not used. If the acidic gas is still to be used, the H2S must be separated from the gas, otherwise it could lead to irreparable damage due to corrosion on the incinerator, gas turbine or pipeline. In addition, the separation of CO 2 to improve the quality of the gas may be necessary in parallel. So far, there are various methods for the preparation of
  • Natural gas with physical and chemical washing media or alternative separation techniques generally require aftertreatment of the H 2 S (for example in a Claus process). In the after-treatment, the gas is treated so that the necessary purity is achieved for further use. Also, the previously used methods are not useful for small gas streams or uneconomical.
  • H2S is thermally and / or by a pressure reduction in these processes separated from the washing solution and fed to a further utilization.
  • the H2S is converted into elemental sulfur by a Claus process.
  • the object of the invention is therefore to provide an absorbent by which from sour gas (sour gas), in particular natural gas from associated gas of oil production (Associated Gas, flare gas) or biogas by means of H2S separation efficient, cost effective and environmentally friendly a usable Gas can be generated.
  • sour gas sour gas
  • associated gas of oil production Associated Gas, flare gas
  • biogas a usable Gas
  • the object of the invention is also to provide a method for producing such an absorbent.
  • the object of the invention is also to provide a method for separating H2S from acidic gases. It is a further object of the invention to specify a device on which the method according to the invention can be carried out.
  • the object of the invention to the provision of an absorbent is solved by the features of claim 1.
  • an absorbent for absorbing hydrogen sulfide from an acidic gas or gas mixture in which an amino acid salt and a metal salt are dissolved, wherein the proportion of the amino acid salt between 5 and 50% by weight and the proportion of the metal salt is less than 3% by weight.
  • the invention aims to improve an absorbent, which is a chemical detergent, so that it is able to reversibly absorb H2S and to oxidise the dissolved H2S in the solution directly to sulfur or sulfate ions
  • an amino acid salt is added with a metal salt.
  • the required amounts of metal salt are well below a concentration of 3 wt .-%.
  • the concentration of the amino acid salt in the solution is between 5 and 50% by weight.
  • the absorbent is suitable for use in the separation of H2S and CO2, as well as for the conversion of H2S to sulfur or useful sulfur products (e.g., sulfates such as K2SO4). Due to the special properties of the adsorbent, H2S and C02 are selectively absorbed, thus minimizing the losses of hydrocarbon chains (CH4).
  • CH4 hydrocarbon chains
  • Strippuft manages without or with a much lower supply of heating steam for C02 desorption compared to other methods. This is made possible by the use of an amino acid salt solution as an absorbent, which due to its complexity and stability, the use of
  • a concentration of amino acid salt in the absorbent of between 15 and 35% by weight has proven to be particularly advantageous since it has been found that concentrations of less than 15% require a very large volume, and concentrations of greater than 35% lead to a viscous absorbent.
  • a particularly advantageous concentration of metal salt is between 0.01 and 0.5% by weight. It has been shown that even very small quantities are sufficient.
  • the metal salts used are preferably the salts of the metals iron, manganese or copper.
  • metal ions are inexpensive to procure and are suitable as a catalyst.
  • a complexing agent (complexing agent) may be added to the absorbent. This prevents precipitation of the metal ions as metal sulfides.
  • the complexing agent preferably has a proportion of between 50 and 300% of the concentration of the metal ions.
  • the complexing agents used are preferably EDTA, citrate ions or chloride ions. In principle, all complexing agents which are able to keep the metal ions in solution are suitable. Since there is a dependence between metal ion and complexing agent, they must be coordinated.
  • the absorbent of claim 8 is prepared by dissolving amino acid salt and metal salt in a solvent.
  • the two substances can do this be solved sequentially or simultaneously.
  • the advantages of the invention result analogously from the advantages of the absorbent according to claim 1.
  • the object of the invention directed to a process for the absorption of hydrogen sulfide from an acidic gas is solved by the features of claim 9.
  • a process with three process steps is specified.
  • the acid gas is brought into contact with a liquid absorbent according to claim 1.
  • hydrogen sulfide from the gas phase is absorbed into the liquid phase.
  • the H2S-containing liquid phase is gassed with oxygen or with an oxygen-containing gas, whereby sulfur precipitates.
  • sulfur is removed from the absorbent, thereby forming a regenerated liquid phase.
  • H2S is separated from the gas stream by an absorbent, and then reacted by catalytic reaction, wherein the absorbent (washing solution) is added a metal complex as a catalyst in dissolved form.
  • usable potassium sulfate or, alternatively, elemental sulfur can be recovered from the H2S by skillful procedure.
  • regeneration of the absorption medium is also achieved for carbon dioxide (CO 2) as a component in the gas by lowering the partial pressure so that thermal regeneration can be dispensed with.
  • the C02 is stripped off.
  • the process steps can be consecutive or simultaneous.
  • the absorbent contains dissolved amino acid salt and a dissolved metal (metal complex).
  • the absorbent is brought into contact with the acidic gas in an absorber.
  • the H2S passes from the gas phase into the liquid phase.
  • carbon dioxide (CO 2) is also absorbed from the gas.
  • the wash solution is led out of the absorber into a regeneration tank.
  • the solution is sparged with air, with oxygen (02) enriched air or with pure 02.
  • oxygen (02) enriched air or with pure 02. By feeding 02 into the solution, the H2S already contained in the solution is reacted on the dissolved metal catalyst. After regeneration, possible solids are separated and the regenerated wash solution returned to the absorber. The reactions occurring are explained in more detail with reference to FIG. 1, where Me stands for metal ion:
  • Equation (I) and (II) describes the oxidation of the H2S to elemental sulfur with simultaneous reduction of the metal ion.
  • Equation (III) describes the oxidation of the reduced metal ion to its oxidized form.
  • Equations (IV) and (V) represent side reactions, wherein the degree of conversion, the reaction rate and the reactions according to (IV) and (V) depend on the pH and the redox potential. in the
  • redox potential and pH can be used as an indicator of operational stability.
  • an excessively high redox potential which in this case represents a measure of the amount of dissolved oxygen, is disadvantageous in terms of absorption.
  • the supply of air or oxygen causes the absorption in parallel to occur during absorption. Stripped C02 stripped from the wash solution and thus the wash solution is also regenerated with respect to their C02 content. If the process takes place at the same place where the gas is also used in a gas turbine, the exhaust air of the regeneration tank (oxidation reactor), which contains air and CO 2, can be used as the combustion air for the gas turbine, whereby the CO 2 content of the absolute air flow and thus the power of the gas turbine increases.
  • the sulfur formed or the solids formed are removed from the absorbent by sedimentation or by hydrocyclones.
  • hydrocyclones the particle size of the separated fraction can be determined by the operation of the hydrocyclones and this has clear advantages in further processing steps for the solid (e.g., washing). Furthermore, fine particles are further circulated with the washing solution, so that their size can increase further and they act as seed crystals for the further precipitation of the substances, which in turn accelerates the crystallization (and thus leads to a reduction of the container volume of the regenerator ).
  • the sulfur formed or the solids formed can also be removed by filtration.
  • the detergent can be returned to the absorber and again take up H2S (and CO2).
  • the absorbent can be heated or cooled by heat exchangers before entering the corresponding system components.
  • the device-directed object of the invention is solved by the features of claim 12.
  • the separation device for carrying out the method according to claim 9, therefore, comprises an absorber and a regeneration tank, which are connected to each other via a conduit for the passage of an absorbent.
  • the absorber is preferably a packed column, a bubble column reactor or a spray scrubber.
  • a flash pot which is connected in the line between the absorber and the regeneration tank, so that dissolved by pressure release hydrocarbons can be removed from the absorbent.
  • the hydrocarbons may have dissolved in the absorbent at elevated absorber pressure in the wash solution.
  • the gas phase separated off in the flash pot is preferably passed back into the inlet of the absorber via a return line.
  • the invention is therefore also suitable for the treatment of biogas by H2S and CO2 separation as a purification step for biogas feed into the natural gas network.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Gas Separation By Absorption (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)

Abstract

L'invention concerne un agent absorbant dans lequel sont dissous un sel d'aminoacide et un métal. L'agent absorbant est mis en contact avec le gaz acide dans un absorbeur. Dans l'absorbeur, le H2S passe de la phase gazeuse à la phase liquide. En outre, en fonction du temps de contact, du dioxyde de carbone (CO2) est également absorbé à partir du gaz. La solution de lavage est envoyée de l'absorbeur dans une cuve de régénération où elle est soumise à un barbotage d'air enrichi en oxygène (O2) ou d'O2 pur. L'apport d'O2 dans la solution transfère le H2S déjà contenu dans la solution sur le catalyseur métallique dissous. Après la régénération, les solides éventuellement présents sont séparés et la solution de lavage régénérée est renvoyée dans l'absorbeur.
EP14707959.4A 2013-04-15 2014-02-18 Agent absorbant, procédé pour le fabriquer, ainsi que procédé et dispositif de séparation de sulfure d'hydrogène d'avec un gaz acide Ceased EP2964364A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013206721 2013-04-15
PCT/EP2014/053059 WO2014170047A1 (fr) 2013-04-15 2014-02-18 Agent absorbant, procédé pour le fabriquer, ainsi que procédé et dispositif de séparation de sulfure d'hydrogène d'avec un gaz acide

Publications (1)

Publication Number Publication Date
EP2964364A1 true EP2964364A1 (fr) 2016-01-13

Family

ID=50231122

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14707959.4A Ceased EP2964364A1 (fr) 2013-04-15 2014-02-18 Agent absorbant, procédé pour le fabriquer, ainsi que procédé et dispositif de séparation de sulfure d'hydrogène d'avec un gaz acide

Country Status (9)

Country Link
US (1) US20160074804A1 (fr)
EP (1) EP2964364A1 (fr)
JP (1) JP2016515936A (fr)
KR (1) KR20150140817A (fr)
CN (1) CN105209152A (fr)
AU (1) AU2014253837B2 (fr)
BR (1) BR112015025661A2 (fr)
CA (1) CA2909345A1 (fr)
WO (1) WO2014170047A1 (fr)

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Publication number Priority date Publication date Assignee Title
EP3271046B1 (fr) 2015-05-12 2020-02-12 Siemens Aktiengesellschaft Procédé et dispositif de désulfuration d'un flux de gaz
MY172682A (en) * 2015-07-24 2019-12-10 Sapurakencana Energy Sarawak Inc A method for separating hydrogen sulphide from effluent gas
WO2017162351A1 (fr) * 2016-03-23 2017-09-28 Siemens Aktiengesellschaft Procédé de traitement d'un flux de gaz
WO2017162350A1 (fr) * 2016-03-23 2017-09-28 Siemens Aktiengesellschaft Procédé de traitement d'un flux de gaz
RU2649442C2 (ru) * 2016-04-25 2018-04-03 Общество с ограниченной ответственностью "Старт-Катализатор" Установка, способ и катализатор очистки газообразного углеводородного сырья от сероводорода и меркаптанов
US10617994B2 (en) 2016-12-31 2020-04-14 Dorf Ketal Chemicals (India) Private Limited Amine based hydrogen sulfide scavenging additive compositions of copper salts, and medium comprising the same
WO2018166937A1 (fr) * 2017-03-14 2018-09-20 Siemens Aktiengesellschaft Procédé et dispositif de préparation d'un flux de gaz contenant du sulfure d'hydrogène
WO2018202406A1 (fr) * 2017-05-02 2018-11-08 Siemens Aktiengesellschaft Procédé et dispositif de désulfuration d'un flux de gaz contenant de l'hydrogène sulfuré
WO2018206228A1 (fr) 2017-05-09 2018-11-15 Siemens Aktiengesellschaft Procédé et dispositif de désulfuration d'un flux gazeux contenant de l'hydrogène sulfuré
KR102078280B1 (ko) * 2018-06-27 2020-02-18 한국에너지기술연구원 주류 제조 공정 내 작업환경을 개선하는 방법
CN108998131B (zh) * 2018-10-22 2023-12-08 西南石油大学 一种高含硫气田集输系统高效脱硫、脱水装置及方法
KR102190874B1 (ko) * 2019-04-25 2020-12-14 한국에너지기술연구원 이산화탄소 흡수액 및 이의 제조방법 및 이를 이용한 이산화탄소 제거방법
KR102512235B1 (ko) * 2022-11-08 2023-03-22 주식회사 태성공영 바이오가스로부터 황을 회수하는 방법

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CN105209152A (zh) 2015-12-30
AU2014253837B2 (en) 2016-12-08
CA2909345A1 (fr) 2014-10-23
JP2016515936A (ja) 2016-06-02
KR20150140817A (ko) 2015-12-16
BR112015025661A2 (pt) 2017-07-18
WO2014170047A1 (fr) 2014-10-23
AU2014253837A1 (en) 2015-10-29
US20160074804A1 (en) 2016-03-17

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