• 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:
    1528724 Purifying gases CHEMIE-UND TANKANLAGENBAU-KOMBINAT FURSTENWALDE VEB 23 Feb 1977 [23 Feb 1976] 07536/77 Heading C5E A solvent for purifying gases, particularly natural or synthetic industrial gases containing sulphur compounds and higher hydrocarbons comprises N-methyl-e-caprolactam and a glycol and optionally an alkanol-anine. The solvent is preferably non-aqueous. Preferred mixtures contain 5-60% by weight glycol, 10-95% by weight N-methyl-#-capriolactam, and 0-30% by weight alkanolamine.
    公开号:SU722558A1
    申请号:SU772454854
    申请日:1977-02-18
    公开日:1980-03-25
    发明作者:Байзе Ханс；Шлихт Буркхард；Тиле Манфред；Грос Манфред；Минак Ханс-Петер；Шингнитц Манфред；Венер Клаус；Бурк Вернер
    申请人:Феб Хеми-Унд Танканлагенбау-Комбинат Фюрстенвальде(Инопредприятие)；
    IPC主号:
    专利说明:

    (54) ABSORBENT FOR CLEANING GAS FROM IMPURITIES
    The invention relates to methods for the purification of industrial gases from impurities by absorption and may find application in gas cleaning processes. A known absorbent for the purification of CO from impurities, which is an aqueous solution of monog di or tri ethanolamine, in which the amine is individual or is in a mixture with other amines {T. The main disadvantage of this absorbent is its low absorption capacity and high corrosion activity. Closest to the proposed invention to the technical essence and the achieved result is an absorbent for purifying gases from impurities, which is a stretch. Alkano.pamine and M-methyl-caprolactam 2. The main component of this absorbent is the comprehensive treatment of an integrated PCG org. . of a single compound (1st sulfur and acid 111.h messer) when using the indicated absorber, as well as its low absorptivity relative to (8O%). Tf. lt.o, bretheni - increase the absorbency of the absorbent. absorber for cleaning gases from impurities, including alkanolamine and N-methyl-caprolactam, which additionally contains glycol in the following ratios of components, wt.%: Alkanolamine 1-30 Glycol 5-6 O hi-methyl - - f-caprolactam Else glycol. take di or tri-glycol glycol. The proposed absorbent has an absorption capacity of 1O% more than the known, and also allows for complex purification of organic sulfur compounds, S and ISO.
    Due to the proposed non-aqueous mixture, the unexpected effect of the detected high solubility for neutral, acidic organic sulfur compounds of aromatic and high paraffin hydrocarbons with simultaneous drying action occurs. Especially in the case of pressures common in natural gas processing technology, the technical solubility coefficients of these components are 1–2 tens of percent higher than for hydrogen sulfide. The unexpected is that the expected occurrence of the alkanolamines contained in the proposed solvent mixture, foaming in the presence of hydrocarbons, emulsions and corrosion products does not occur.
    PRI me R. From 10,000 natural gas at 50 atm and 2 ° C, acidic components and organic sulfur-containing compounds should be removed at
    simultaneous drying up to a content of 25 ppm. Crude gpz is treated in a packed column with a circulating solvent 16. A solvent mixture is a solution of 2% by weight of diethanolamine, 20% by weight of diethylene glycol and 60% by weight of N-methyl-E-caprolactam. The solvent mixture is prepared by simple mixing.
    The removed gas of the first stage is again compressed under a pressure of 90 atm and mixed into the crude gas at the entrance to the absorber. The removed second stage gas at 5 atm is used as a heating gas.
    The regeneration of the solvent is carried out in a packed column at a pressure of 1.1 atm and 15 ° C. 1OO m / h of purified gas is used as a stripping gas.
    The table shows the compositions of purified and unpurified gases.
    权利要求:
    Claims (2)
    [1]
    The claims 1. Absorbent for the purification of gases from impurities, including alkanolamine and N-methyl-£ -caprolactam, characterized in that, in order to increase its absorption capacity, it additionally contains glycol in the following ratios of components, wt.%:
    Alkanolamine 1-30
    Glycol 5-60
    N-methyl
    - £ -caprolactam
    Rest
    [2]
    2. Absorbent in π. 1, on the basis of the fact that di- or triethylene glycol is taken as glycol.
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    同族专利:
    公开号 | 公开日
    FR2341643B1|1981-02-27|
    NL7701871A|1977-08-25|
    DD124056A1|1977-02-02|
    HU179941B|1983-01-28|
    GB1528724A|1978-10-18|
    US4145192A|1979-03-20|
    DE2703929A1|1977-08-25|
    FR2341643A1|1977-09-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR1466255A|1965-03-18|1967-01-20|Inst Francais Du Petrole|Process for the purification of gases containing acid impurities|
    GB1102943A|1965-04-05|1968-02-14|Allied Chem|Separation of acidic gas constituents from gaseous mixtures containing the same|
    US3471370A|1966-04-20|1969-10-07|Atlantic Richfield Co|Method for regenerating glycolamine absorbing solutions|
    US3417011A|1967-01-03|1968-12-17|Universal Oil Prod Co|Hydrocarbon conversion process employing purified recycle hydrogen|
    US3397731A|1968-02-07|1968-08-20|Maloney Crawford Tank|Method and apparatus for reconcentrating liquid desiccant|
    GB1224160A|1969-09-11|1971-03-03|Leuna Werke Veb|Process for the removal of acid constituents from gas mixtures|
    US3653809A|1970-03-09|1972-04-04|Leuna Werke Veb|Process for the removal of acidic constituents from gaseous mixtures|
    US3968104A|1970-12-17|1976-07-06|Bayer Aktiengesellschaft|Extremely low viscosity adducts of lactams with alcohols|
    DE2062288A1|1970-12-17|1972-07-13|Farbenfabriken Bayer Ag, 5090 Leverkusen|Extremely low-viscosity adducts of lactams|US4238206A|1979-03-05|1980-12-09|Columbia Gas System Service Corporation|Using solvents for acidic gas removal|
    DD207800A3|1982-01-19|1984-03-14|Burkhard Schlicht|METHOD FOR DRYING AND REMOVING HYDROCARBONS FROM BZW. FROM GASEN|
    US5273679A|1986-10-30|1993-12-28|Toho Kagaku Kogyo Co., Ltd.|Stabilizers for compositions for acid gas absorbent|
    DE3700247A1|1987-01-07|1988-07-21|Basf Ag|METHOD FOR THE REMOVAL OF SOLVENTS, NOT MIXABLE WITH WATER, FROM THESE EXHAUST GASES|
    AT179088T|1993-11-09|1999-05-15|Union Carbide Chem Plastic|ABSORPTION OF MERCAPTANS|
    US5625117A|1995-08-18|1997-04-29|Ashland Inc.|Fuel gas stripping of rich amine to remove hydrocarbons|
    EP1565248A1|2002-11-28|2005-08-24|Shell Internationale Researchmaatschappij B.V.|Process for removing sulphur compounds including hydrogen sulphide and mercaptans from gas streams|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD191435A|DD124056A1|1976-02-23|1976-02-23|
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