• 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:
    This invention relates to a method for treating residue gases proceeding from units applying the Claus reaction for the removal of sulphur and having been subjected to a conversion of the sulphur compounds into sulphuretted hydrogen. This method consists in that, prior to absorption of the sulphuretted hydrogen by a selective solvent in aqueous solution, the gases to be treated are cooled to a temperature so selected as to condense the water contained in the gases to form an aqueous effluent which is thereafter injected into the circuit of the selective solvent.
    公开号:SU1586506A3
    申请号:SU802886004
    申请日:1980-02-20
    公开日:1990-08-15
    发明作者:Кастель Жоэль；Легран Кристиан
    申请人:Компани Франсэз Д,Этюд Э Де Констрюксьон "Текнип" (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to processes for purifying waste sulfur-containing gases using liquid organic absorbers.
    The purpose of the invention is to simplify the process by reducing the amount of effluent.
    Example. This example shows the material and energy balance of the proposed method for treating Claus gas with a high content. The data are presented in Table. 1, which shows the composition of the following streams: initial Claus process off-gas (1), residual gases to be treated
    after cooling at the inlet to the absorber (2); condensed water condensate (3); waste gases from the process (4); acid gas recycled to the Claus process (5); regenerated absorber at the inlet to the absorber (6); application solvent at the inlet to the regenerator (7). The process is carried out in an installation containing a cooler of the gas to be treated, a separator for separating the liquid phase, an absorber, a recirculating condenser, a regenerative heat exchanger for transferring heat between the regenerated and saturated adsorbents, a cooler upper
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    parts of the regenerator and its heater
    the lower part,
    : The method is carried out as follows.
    The treated Claus process gases are cooled and fed to a separator for separating condensed water. The separated gases are introduced into the lower part of the absorption column, where they are contacted with a stream of regenerated methyldiethanolamine supplied 3 to the upper part of the absorption column. This temperature ensures the energy balance of the proposed method is presented in table. 2
    The proposed method allows to simplify the process of purifying waste gases, since the discharge of the amount of waste water containing acid gases decreases from 30 to zero and no additional hydrotreating systems are required. At 65 and obtained similar results.
    p is the content of water vapor in the gas removed from the process, which allows one to avoid their condensation and |: throwing water in the future. Saturated methyldiethanolamine is fed to the regeneration, and the water formed during the regeneration of methyldiethanolamine evaporates- |: in the absorptive column when in contact with a gas having a temperature of 50 ° C,
    The water flow obtained during cooling of the source t o gas is mixed with saturated methyldiethanolamine and, after regeneration, is returned through the recuperative heat exchanger for absorption.
    In tab. 1 shows the material balance of the method.
    20
    权利要求:
    Claims (1)
    [1]
    15 Formula Fig.
    The method of purification of flue gases from hydrogen sulphide, including their cooling with the separation of the resulting aqueous condensate, absorption by an aqueous solution of methyldiethanolamine, thermal regeneration of the saturated absorbent and returning it to absorption, in order to simplify the process by reducing the amount of effluent, water-cooled condensate obtained during cooling is mixed with methyl-diethanopamine returned for absorption, and water vapor is removed with a gas stream at the absorption stage while maintaining the gas temperature at high temperatures. de.
    Table 1
    15865066
    table 2
    类似技术:
    公开号 | 公开日 | 专利标题
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    CN102481515B|2015-01-28|Sulfur recovery plant tail gas treatment process
    US3918934A|1975-11-11|Process for purifying gases
    US3324627A|1967-06-13|Process for the purification of gases
    CA2675833C|2014-10-14|Method and plant for treating crude gas, in particular biogas, containing methane and carbon dioxide, in order to produce methane
    KR101839225B1|2018-03-15|Method for purification of coke oven gas and device for purification of coke oven gas
    US4133650A|1979-01-09|Removing sulfur dioxide from exhaust air
    US3120993A|1964-02-11|Gas purification process
    US4504449A|1985-03-12|Process of regenerating absorbent solutions for sulfur-containing gases
    SU1586506A3|1990-08-15|Method of removing hydrogen sulfide from waste gases
    CS196350B2|1980-03-31|Treatnment of gases containing hydrogen sulphide
    WO1986005474A1|1986-09-25|Selective absorption of hydrogene sulfide from gases which also contain carbon dioxide
    US3656275A|1972-04-18|Process for the removal and concentration of a component gas from a multi-gaseous stream
    SU1530091A3|1989-12-15|Method of cleaning gases containing hydrogen sulfide and sulfur dioxide to obtain elemental sulfur
    KR20020051011A|2002-06-28|Apparatus and method for purifying Coke oven gas
    US3656887A|1972-04-18|Method of removing hydrogen sulfide from gaseous mixtures
    US4460385A|1984-07-17|Process for the removal of acid gases from hydrocarbon gases containing the same
    RU2080908C1|1997-06-10|Method of isolating hydrogen sulfide from gas
    JPH05139708A|1993-06-08|Method for regenerating used sulfuric acid
    US2295587A|1942-09-15|Recovery of sulphur dioxide from gas mixtures
    KR19990022865A|1999-03-25|Method and apparatus for treating hydrogen sulfide-containing gas comprising a cooling step for crystallizing and removing sulfur
    KR100446648B1|2004-09-04|Method for purifying coke oven gas by cooling down to freezing point of water
    US4778490A|1988-10-18|Process for removal of volatile matter from coke-oven plant waters
    同族专利:
    公开号 | 公开日
    FR2449470B1|1983-01-21|
    CA1126930A|1982-07-06|
    DE3006238A1|1980-09-04|
    JPS55157315A|1980-12-08|
    FR2449470A1|1980-09-19|
    US4308243A|1981-12-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2703253C1|2018-12-28|2019-10-15|Общество с ограниченной ответственностью "ЭЛИСТЕК инжиниринг"|Method of cleaning process condensates from hydrogen sulphide and ammonia|US2638405A|1947-10-31|1953-05-12|Fluor Corp|Amine treating and dehydration of gases|
    GB996543A|1963-07-11|1965-06-30|Chemical Construction Corp|Process for removal of acid gas from gas streams|
    DE1544080C3|1965-11-15|1975-07-31|Metallgesellschaft Ag, 6000 Frankfurt|
    GB1069689A|1965-12-20|1967-05-24|Hydrocarbon Research Inc|Gas absorption|
    US3932582A|1966-02-01|1976-01-13|Eickmeyer Allen Garland|Method and compositions for removing acid gases from gaseous mixtures and reducing corrosion of ferrous surface areas in gas purification systems|
    US3417572A|1967-05-01|1968-12-24|Chevron Res|Separation of hydrogen sulfide from carbon dioxide by distillation|
    JPS5339286A|1976-09-22|1978-04-11|Hitachi Ltd|Regenerating method for iron oxide removing agent|
    US4198378A|1976-11-12|1980-04-15|Giuseppe Giammarco|Process for removing CO2, H2 S and other gaseous impurities from gaseous mixtures|
    US4160810A|1978-03-07|1979-07-10|Benfield Corporation|Removal of acid gases from hot gas mixtures|US4409191A|1982-01-04|1983-10-11|Exxon Research & Engineering Co.|Integrated cyclic scrubbing and condensate stripping process for the removal of gaseous impurities from gaseous mixtures|
    FR2631561B1|1988-05-20|1990-07-20|Elf Aquitaine|PROCESS AND DEVICE FOR THE REMOVAL OF LOW CONCENTRATION OF H2S IN A GAS ALSO CONTAINING A LARGE QUANTITY OF WATER VAPOR|
    US5314671A|1990-01-19|1994-05-24|Elf Aquitaine Production|Process and device for removal of H2 S|
    NL2004220C2|2010-02-10|2011-08-15|Stichting Energie|Liquid based scavenging of aerosols.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7904699A|FR2449470B1|1979-02-23|1979-02-23|
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