• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Perfectionnement à l'enrichissement d'un gaz en hydrogène sulfuré, comprenant l'absorption sélective par un liquide, dans une zone d'absorption (2) primaire, la régénération du liquide (5) par chauffage et/ou stripage par un gaz inerte avec libération des gaz absorbés et récupération d'une fraction des gaz libérés, le reste étant soumis à une seconde absorption, dans une zone d'absorption secondaire (6) par du liquide absorbant neuf ou régénéré identique à celui qui est utilisé dans la zone d'absorption primaire (2) ; dans une seule et même zone d'opération (Z), commune aux zones de régénération (5) et d'absorption secondaire (6), ont lieu simultanément : l'arrivée du liquide de la première absorption, le flux des gaz libérés (3,17) lors de la régénération, l'écoulement du liquide provenant de l'absorption secondaire (6) et le départ d'une fraction des gaz libérés enrichie en H2S.
    公开号:SU1431663A3
    申请号:SU833680100
    申请日:1983-12-20
    公开日:1988-10-15
    发明作者:Оливо Оливье；Бланк Клод
    申请人:Сосьете Насьональ Елф Акитэн (Фирма)；
    IPC主号:
    专利说明:

    05 About CO

    cm
    The invention relates to processes for the purification of gas from hydrogen sulphide and carbon dioxide by absorption of a liquid absorber.
    The aim of the invention is to increase the degree of enrichment of gas with hydrogen sulfide and simplify the process.
    The method is carried out as follows.
    The feed gas containing and CO enters the lower part of the absorber, which has 25 plates, where the absorbent is fed. Unabsorbed gases are supplied to the consumer. The liquid absorbent, which dissolved almost all the sulfur - iodide and part of carbon dioxide, is fed through a heat exchanger, where it is preheated, to a regenerator. Liquid
    Source gas
    , 2%
    24.6%
    6, 8 g / l 159 g / l
    65% 35%

    0.5 g / l 0.2 g / l
    0.5 g / l 0.2 g / l

    Yuob.d.d. 3.8%
    the absorbent to be regenerated is fed to the first plate in the lower part of the absorber. Condensed acid gas (HjS and CO) is removed between the first and second plates. The regenerated absorbent of the second stage is fed to the upper zone of the absorber. The treatment of the source gas consisting of crude synthesis gas with,%: 1.2; is carried out. CO 2A, 6; CO + Hi 74.2.
    The absorbent consists of an aqueous solution containing 4 mol / l methyldiethanolamine. The pressure in the absorber 2-57 bar, bottom temperature 72 C. In this absorber 25 plates. The conditions and results of the work are presented in the table.
    0.046122000
    37
    0.052
    325,100
    0.650
    2100
    102
    0.04
    24740
    40
    0.770
    485,127
    0.770
    160, 40
    325
    2, 95160
    As can be seen from the table, at the exit from the regeneration zone, gas is taken with a content of 65% (as compared with the content, 27, in the source gas). As for the synthesis gas leaving the second absorption zone, it contains only 10 vol. etc. 96.2% HjS, which provides sufficient purity for methanol synthesis. Dp is achieved by feeding the absorbent to
    The content of 65% in the gas taken in the regeneration zone is limited to 7.8% of the acid gas contained in the absorbent to be regenerated, i.e. (2100: 26840) x100. According to the prototype method, the enrichment was 20.3%, and according to the proposed procedure under the same conditions, 26.4%, i.e. 1.3 times more.
    权利要求:
    Claims (2)
    [1]
    Invention Formula
    15
    20
    the upper zone of the regenerator, and the extraction of the gas stream enriched with hydrogen sulfide, lead from the zone of the regenerator, which is below the zone of supply of the saturated drum.
    [2]
    2. The method according to claim 1, is different from the fact that the ratio of the flow rate of the selected gas mixture enriched with hydrogen sulfide to the consumption of sulfur-hydrogen and carbon dioxide contained in the absorbent exiting from the first absorption stage is equal to 1: where p is the ratio of the concentrations of hydrogen sulfide in the outgoing gas stream and the absorbent leaving after the first absorption stage.
    1. The method of purification of gases from hydrogen sulfide and carbon dioxide, which includes the first absorption stage, the regeneration of a saturated absorbent in the regenerator by heating or stripping it with an inert gas the fact that, in order to increase the degree of enrichment of the gas with hydrogen sulfide and simplify the process, the second stage of absorption is
    the upper zone of the regenerator, and the extraction of the gas stream enriched with hydrogen sulfide, lead from the zone of the regenerator, which is below the zone of supply of the saturated drum.
    2. The method according to claim 1, wherein: the ratio of the flow rate of the selected gas mixture enriched with hydrogen sulfide to the consumption of hydrogen sulfide and carbon dioxide contained in the absorbent leaving the first stage of absorption is maintained at 1 : n, where p is the ratio of the concentrations of hydrogen sulfide in the outgoing gas stream and the absorbent leaving after the first absorption stage.
    类似技术:
    公开号 | 公开日 | 专利标题
    US4999031A|1991-03-12|Removing CO2 and, if necessary, H2 S from gases
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    US4853012A|1989-08-01|Process and device for deacidification of a gas containing H2 S and/or CO2 and mercaptans
    GB995007A|1965-06-10|Method for separating ammonia from mixtures of gases
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    SU1431663A3|1988-10-15|Method of cleaning gases of hydrogen sulfide and carbon dioxide
    US4057403A|1977-11-08|Gas treating process
    US3864449A|1975-02-04|Regeneration of alkanolamine absorbing solution in gas sweetening processes
    GB2191419A|1987-12-16|Process for the selective removal of hydrogen sulphide
    GB1501195A|1978-02-15|Method of removing co2 and/or h2s from a gaseous mixture containing same
    US4001386A|1977-01-04|Process for H2 S removal employing a regenerable polyalkanolamine adsorbent
    US4539189A|1985-09-03|Method for removing sulfides from industrial gas
    US4647397A|1987-03-03|Composition for removing sulfides from industrial gas
    US4532116A|1985-07-30|Process of desulfurizing gases with an amine-containing absorbent solution
    RU2080908C1|1997-06-10|Method of isolating hydrogen sulfide from gas
    CA1142735A|1983-03-15|Regenerating alkanolamine desulfurizer solution
    US5489421A|1996-02-06|Process for preparing hydroxylamine from NOx -containing flue gases
    US5147620A|1992-09-15|Process for the purification of gaseous streams
    US4840648A|1989-06-20|Process for regenerating absorbents containing CO2 and COS
    JPH0651091B2|1994-07-06|Improved method for acid gas recovery
    US4773921A|1988-09-27|Process and device for selective extraction of H2 S from an H2 S-containing gas
    US1989004A|1935-01-22|Purification of gases
    EP0322924A1|1989-07-05|Selective H2S removal from fluid mixtures using high purity triethanolamine
    US4086323A|1978-04-25|Process for removal of sulfur compounds from fuel gases
    同族专利:
    公开号 | 公开日
    FR2537888B1|1985-06-28|
    CA1222126A|1987-05-26|
    ES8505262A1|1985-06-01|
    ES535783A0|1985-06-01|
    EP0114550A3|1984-08-15|
    NO159520C|1989-01-11|
    NO834703L|1984-06-22|
    EP0114550B1|1986-02-05|
    ES528147A0|1984-12-16|
    US4519991A|1985-05-28|
    NO159520B|1988-10-03|
    JPS59120223A|1984-07-11|
    FR2537888A1|1984-06-22|
    DE114550T1|1985-01-03|
    DE3362098D1|1986-03-20|
    EP0114550A2|1984-08-01|
    JPH0378127B2|1991-12-12|
    ES8501244A1|1984-12-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3819816A|1969-05-21|1974-06-25|G Wunderlich|Process for the manufacture of sulfur or sulfuric acid from coke oven gas|
    FR2328657B1|1975-10-21|1979-05-04|Elf Aquitaine|
    NL7701174A|1977-02-04|1978-08-08|Shell Int Research|PROCESS FOR PREPARING A GAS MIX WITH DESIRED H2S / CO2 RATIO.|
    US4067171A|1977-02-07|1978-01-10|Kurt H. Volk, Inc.|Method of making multiple enclosure mailer|
    US4289738A|1980-07-22|1981-09-15|The Dow Chemical Company|Process for removing H2 S from sour gases with generation of a Claus feed gas|
    US4299801A|1980-11-18|1981-11-10|Bethlehem Steel Corporation|Regenerating alkanolamine desulfurizer solutions|
    DE3047829A1|1980-12-18|1982-07-15|Linde Ag, 6200 Wiesbaden|METHOD AND SYSTEM FOR THE SEPARATION OF SULFUR HYDROGEN AND CARBON DIOXIDE FROM A GAS MIXTURE|DE3215333C2|1982-04-24|1986-09-25|Carl Still Gmbh & Co Kg, 4350 Recklinghausen|Process for the fine desulfurization of coke oven gas|
    FR2588196B1|1985-10-04|1989-10-27|Elf Aquitaine|METHOD AND DEVICE FOR THE SELECTIVE EXTRACTION OF H2S FROM A GAS CONTAINING IT|
    FR2588195B1|1985-10-04|1987-12-11|Elf Aquitaine|METHOD AND DEVICE FOR THE SELECTIVE EXTRACTION OF H2S FROM A GAS CONTAINING IT|
    WO1993010883A1|1991-11-27|1993-06-10|Exxon Research And Engineering Company|Lean acid gas enrichment with selective hindered amines|
    DE10219900B4|2002-05-03|2004-08-26|Lurgi Ag|Process for the purification of hydrocarbon gas|
    EP1871511A4|2005-04-20|2011-05-04|Fluor Tech Corp|Configurations and methods for claus plant operation with variable sulfur content|
    FR2990880B1|2012-05-25|2017-04-28|Total Sa|METHOD FOR THE SELECTIVE REMOVAL OF HYDROGEN SULFIDE FROM GASEOUS MIXTURES AND THE USE OF THIOALCANOL FOR THE SELECTIVE REMOVAL OF HYDROGEN SULFIDE|
    FR2990878B1|2012-05-25|2014-05-16|Total Sa|PROCESS FOR THE PURIFICATION OF GASEOUS MIXTURES CONTAINING ACIDIC GASES|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8221410A|FR2537888B1|1982-12-21|1982-12-21|IMPROVEMENT IN GAS SULFIDE HYDROGEN ENRICHMENT CONTAINING THE SAME|
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