• 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:
    In a continuous process for the selective absorption of constituents from a gas stream where a component is reacted to form absorbable constituents, recovery per unit volume of absorbent is improved by passing the gas through a low temperature mass absorption zone, a high temperature reaction-absorption zone and a final low temperature absorption zone, the absorption solution from the final absorption and reaction-absorption zones being combined to form the absorption solution of the mass absorption zone.
    公开号:SU728692A3
    申请号:SU701470851
    申请日:1970-08-19
    公开日:1980-04-15
    发明作者:В.Дейли Лоренс
    申请人:Сосьете Насьональ Дэ Петроль Д"Акитэн (Фирма)；
    IPC主号:
    专利说明:

    I
    The invention relates to methods for the purification of natural gas and may find application in the gas and petroleum industries.
    Known sposb natural gas from acid components (COj, and) by sorption with aqueous solutions of amines, in particular monoethanolamine, followed by regeneration of the absorption solutions 1.
    The disadvantage of this method is associated with the loss of the active component due to its relatively high vapor pressure, and also because monoethanolamine irreversibly reacts with carbon dioxide, usually also present in natural gas, among other impurities.
    Also known is the method of purification of natural gas from acidic impurities by absorption by aqueous solutions of amines in three stages, followed by regeneration of absorbents 2.
    According to this method, part of the absorption solution is diverted to regeneration and, after regeneration, is returned to the third final absorption zone at 40-45 ° C. Another part.
    the absorption solution is cooled to 20-25 ° C and sent to the second absorption zone.
    The disadvantage of this method is due to the fact that it does not provide gas purification from carbon dioxide.
    The aim of the invention is the simultaneous purification of natural gas and carbon monoxide.
    This goal is achieved by the fact that during the three-stage absorption of acidic impurities by aqueous solutions of amines, the second stage of absorption is carried out at BO-EO-C. Carbon monoxide at this
    5, the temperature is hydrolyzed to and COjf which are absorbed in the third terminal absorption zone.
    The natural gas purification process is carried out as follows.
    0
    The gas to be purified is introduced countercurrently to the first absorption stage. In this case, solutions of monoethanolamine, diethanolamine and
    5 triethanolamine, but diethanolamine is preferred when it is present in a solution in the range of 20-30% by weight.
    The absorption of gas contained in the gas occurs at the n-first absorption stage.
    权利要求:
    Claims (1)
    [1]
    Claim
    The method of purification of natural gas from acidic impurities by absorption in aqueous solutions of amines in three stages upon heating, followed by regeneration of absorbents, which consists in the fact that, in order to simultaneously purify gases and carbon sulphide, the second stage of absorption is carried out at 60-90 ° C .
    类似技术:
    公开号 | 公开日 | 专利标题
    SU728692A3|1980-04-15|Natural gas purifying method
    CA2856515C|2020-03-10|Prevention of nitro-amine formation in carbon dioxide absorption processes
    GB1420263A|1976-01-07|Process for the selective removal of sulphur impurities fromeffluent gases
    ES399876A1|1974-11-16|Combined sulfur oxides acceptance-sulfur recovery process
    ES8201841A1|1982-01-16|Process and installation for regenerating an absorbent solution containing gaseous compounds
    GB899611A|1962-06-27|Process for separating gases
    GB1501195A|1978-02-15|Method of removing co2 and/or h2s from a gaseous mixture containing same
    SU910110A3|1982-02-28|Process for purifying off gases from sulphur oxides
    GB1495452A|1977-12-21|Removal of sulphur compounds from gas streams
    ES363949A1|1971-01-01|Gas treatment process
    SU596272A1|1978-03-05|Method of purifying gases from sulphur dioxide
    RU2104754C1|1998-02-20|Method of removing sulfur and nitrogen oxides from gases
    SU412913A1|1974-01-30|
    SU882918A1|1981-11-23|Method of sulfuring acid production
    RU2091302C1|1997-09-27|Method of absorption of nitrogen oxides
    SU638351A1|1978-12-25|Method of removing acid components from gas mixtures
    SU1127123A1|1990-11-23|Method of cleaning gas from carbon dioxide and hydrogen sulfide
    SU1544468A1|1990-02-23|Method of cleaning gas from carbon dioxide
    SU181061A1|1966-04-15|HMPTGCH. ^,! '^ t; - ^ ;. (h-: cl ^: -'Ch
    SU1586752A1|1990-08-23|Method of cleaning acetylene-containing gases from homologs of acetylene
    SU831157A1|1981-05-23|Method of cleaning gases from sulphur dioxide
    SU602212A1|1978-04-15|Method of purifying gases from nitrogen oxides
    SU1662647A1|1991-07-15|Method of cleaning flue gases from nitrogen | oxide
    SU801860A1|1981-02-07|Method of cleaning gases from hydrogen fluoride
    SU394300A1|1973-08-22|METHOD FOR CLEANING GAS FROM NITROGEN OXIDES
    同族专利:
    公开号 | 公开日
    US3961015A|1976-06-01|
    FR2062138A5|1971-06-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2594311A|1949-04-23|1952-04-29|California Research Corp|Removal of carbonyl sulfide from liquefied petroleum gas|
    US2878099A|1955-07-22|1959-03-17|Ruhrstahl Ag Fa|Method of deacidifying gases|
    US2826601A|1957-02-05|1958-03-11|Carbogen Corp|System for producing cyanohydrins|
    US3098705A|1960-12-05|1963-07-23|Shell Oil Co|Process for removing carbonyl sulfide from petroleum gases|
    US3387917A|1964-10-30|1968-06-11|Dow Chemical Co|Method of removing acidic contaminants from gases|US4041130A|1975-12-29|1977-08-09|The Ralph M. Parsons Company|Process for desulfurization of coke oven gas|
    US4297329A|1977-12-22|1981-10-27|Union Carbide Corporation|Vapor-liquid contacting system|
    US4278621A|1977-12-22|1981-07-14|Union Carbide Corporation|Vapor-liquid contacting system|
    US4184855A|1977-12-29|1980-01-22|Union Carbide Corporation|Process for CO2 removal|
    US4233141A|1979-04-27|1980-11-11|The Ralph M. Parsons Company|Process for removal of carbonyl sulfide in liquified hydrocarbon gases with absorption of acid gases|
    US4332781A|1980-12-29|1982-06-01|Shell Oil Company|Removal of hydrogen sulfide and carbonyl sulfide from gas-streams|
    US4359450A|1981-05-26|1982-11-16|Shell Oil Company|Process for the removal of acid gases from gaseous streams|
    US4356161A|1981-08-24|1982-10-26|Shell Oil Company|Process for reducing the total sulfur content of a high CO2 -content feed gas|
    US4409199A|1981-12-14|1983-10-11|Shell Oil Company|Removal of H2 S and COS|
    US4557911A|1984-06-28|1985-12-10|Amoco Corporation|Process for producing sweet CO2 and hydrocarbon streams|
    FR2600554B1|1986-06-30|1988-09-02|Elf Aquitaine|PROCESS AND DEVICE FOR DEACIDIFYING A GAS CONTAINING H2S OR / AND CO2 AS WELL AS MERCAPTANS|
    US5085839A|1990-01-08|1992-02-04|Lyondell Petrochemical Company|Apparatus for the prevention of acid gas excursions|
    US5298228A|1992-09-08|1994-03-29|Atlantic Richfield Company|Method and apparatus for treating hydrocarbon gas streams contaminated with carbonyl sulfide|
    US20020121093A1|2001-02-21|2002-09-05|Wallace Paul S.|Utilization of COS hydrolysis in high pressure gasification|
    FR2897785B1|2006-02-28|2009-06-05|Inst Francais Du Petrole|OPTIMIZED COS REMOVAL PROCESS|
    FR2950265B1|2009-09-21|2012-08-24|Inst Francais Du Petrole|METHOD FOR DEACIDIFYING GAS BY ABSORBENT SOLUTION WITH COS REMOVAL BY HYDROLYSIS|
    EP2481467A1|2011-01-31|2012-08-01|Siemens Aktiengesellschaft|Solvent, method for preparing an absorption liquid, and use of the solvent|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US04/851,926|US3961015A|1969-08-21|1969-08-21|Combined hydrolysis and absorption process and apparatus therefor|
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