• 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:
    Process for the treatment of gaseous mixtures, which contain sour gases, with organic solvents, characterized in that the treatment is conducted in the presence of alkaline-reacting compounds in order to prevent corrosion of apparatus parts made of iron or steel.
    公开号:SU867282A3
    申请号:SU782705792
    申请日:1978-12-29
    公开日:1981-09-23
    发明作者:Карват Гейнц；Ланг Роланд；Еленд Вольфганг
    申请人:Линде Аг (Фирма)；
    IPC主号:
    专利说明:

    1403) is 17.5 mg. In this case, the entire surface of the pins is approximately 100 cm. The effect of corrosion on undoped iron is thus significant. However, if 28 mg of sodium liquor (NaOH) is dissolved in a liquid, then the above experience only results in dissolving 0.35 mg of iron. This value becomes even lower in the case of producing dowel pins from alloyed steels (0.05 mg).
    When 0.15 ml of a 25% aqueous ammonia solution is added to the solution, the amount of iron dissolved is less than 0.05 mg. Thus, -corrosion is reduced by a factor of at least 35 times.
    The use of methanol with the addition of alkali makes it possible to reduce the corrosivity by a factor of 35-50. process, thereby ensuring a long, uninterrupted
    operation of absorption gas cleaning units.
    权利要求:
    Claims (2)
    [1]
    1. A method for purifying gases from acid components by absorption with methanol, characterized in that, in order to reduce the degree of corrosion of the apparatus, absorption is carried out in the presence of sodium hydroxide or ammonia.
    [2]
    2. Method POP.1, characterized in that sodium hydroxide or ammonia is introduced in an amount of 5-200 mmol / l methanol.
    Sources of information taken into account in the examination
    1.Koul A.D. and Risenfeld FS. Gas purification. M., Nedra 1968, p. 85--8b.
    2. Hydrocarbon Processing, 4, 1974, p. 72-80 (prototype).
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    同族专利:
    公开号 | 公开日
    JPS54122675A|1979-09-22|
    IN151173B|1983-03-05|
    GB2012807A|1979-08-01|
    BR7808609A|1979-08-28|
    US4250150A|1981-02-10|
    AU527420B2|1983-03-03|
    AU4297478A|1979-07-05|
    GB2012807B|1982-09-08|
    PL212552A1|1979-11-05|
    PL114640B1|1981-02-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1613808A|1927-01-11|Waltee t |
    US1927842A|1933-09-26|Noncobeosive alcohol |
    US1797402A|1929-09-07|1931-03-24|Du Pont|Noncorrosive water and alcoholic solution|
    US2718454A|1947-10-11|1955-09-20|Exxon Research Engineering Co|Recovery of acidic gases|
    US2764553A|1954-01-20|1956-09-25|Allied Chem & Dye Corp|Composition of alcohol and lithium chromate|
    DE1544080C3|1965-11-15|1975-07-31|Metallgesellschaft Ag, 6000 Frankfurt|
    DE1567717B2|1966-12-16|1975-09-04|Metallgesellschaft Ag, 6000 Frankfurt|Process for leaching carbon dioxide from hydrogen-containing synthesis gases|
    US4137294A|1968-12-17|1979-01-30|Metallgesellschaft Aktiengesellschaft|Process of scrubbing fuel synthesis gases to remove acid gases and organic sulfur compounds|
    US3864449A|1973-05-17|1975-02-04|Bethlehem Steel Corp|Regeneration of alkanolamine absorbing solution in gas sweetening processes|DE3000250A1|1980-01-05|1981-07-16|Metallgesellschaft Ag, 6000 Frankfurt|METHOD FOR REMOVING H2S, CO2 , COS AND MERCAPTANES FROM GASES BY ABSORPTION|
    FR2479021B1|1980-03-31|1984-05-18|Elf Aquitaine|
    DE3308392A1|1983-03-09|1984-09-13|Linde Ag, 6200 Wiesbaden|METHOD FOR PREVENTING THE INSTALLATION OF APPARATUS WITH METAL SULFIDES|
    US4498997A|1983-06-24|1985-02-12|Halliburton Company|Method and composition for acidizing subterranean formations|
    DE3704882C2|1987-02-17|1989-03-23|Metallgesellschaft Ag, 6000 Frankfurt, De|
    DE10332427A1|2003-07-16|2005-02-03|Uhde Gmbh|Process for the removal of hydrogen sulfide and other sour gas components from pressurized industrial gases|
    WO2006132040A1|2005-06-07|2006-12-14|Kabushiki Kaisha Kobe Seiko Sho|Process for producing high-purity hydrogen|
    US7901488B2|2006-10-04|2011-03-08|Board Of Regents, The University Of Texas System|Regeneration of an aqueous solution from an acid gas absorption process by matrix stripping|
    US8795405B1|2009-06-08|2014-08-05|Shaw Intellectual Property Holdings, Llc|Beneficial use of carbon|
    WO2018145923A1|2017-02-10|2018-08-16|Haldor Topsøe A/S|A method for the hydroprocessing of renewable feeds|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2759124A|DE2759124C2|1977-12-30|1977-12-30|Process for preventing the corrosion of iron apparatus parts|
    DE19772759123|DE2759123C2|1977-12-30|1977-12-30|Process for scrubbing acidic gases from gas mixtures|
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