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    13.
    发明专利
    未知

    公开(公告)号：DE59807245D1

    公开(公告)日：2003-03-27

    申请号：DE59807245

    申请日：1998-03-13

    Applicant: BASF AG

    Inventor： FLICK KLEMENS ,  MEISSNER RUPRECHT ,  ARTRIP J ,  KUNZ FABIAN ,  HEFNER WERNER ,  FESER RAINER

    IPC: C07C7/163 ,  C07B61/00 ,  C07C7/00 ,  C07C11/02 ,  C10G45/40 ,  C10G67/12 ,  C10G67/14 ,  C10G70/00

    Abstract: Alkines, dienes, and/or singly unsaturated hydrocarbons; compounds containing sulphur, arsenic and/or antimony; oxygen, hydrogen and/or carbon monoxide are removed from material flows in a total of at most three process steps. In a first process step, after hydrogen has been added to the feed material flow at a hydrogenation catalyst which is largely resistant to compounds containing sulphur, arsenic and/or antimony, alkines, dienes and/or singly unsaturated hydrocarbons are removed by hydrogenation, oxygen which may optionally be present also being at least partially removed by hydrogenation. In a second process step, compounds containing sulphur, arsenic and/or antimony and/or residual oxygen from the first process step are removed by absorption on a contact mass, and/or residual oxygen, carbon monoxide and/or residual hydrogen are at least partially converted catalytically into water and carbon dioxide. Optionally, in a third process step, residual carbon monoxide and/or residual hydrogen from the preceding process steps is/are converted on a contact mass into carbon dioxide and/or water.

    REMOVAL OF CO.SUB.2 AND/OR H.SUB.2S FROM GASES
    16.
    发明专利
    REMOVAL OF CO.SUB.2 AND/OR H.SUB.2S FROM GASES 未知

    公开(公告)号：CA1214024A

    公开(公告)日：1986-11-18

    申请号：CA448938

    申请日：1984-03-06

    Applicant: BASF AG

    Inventor： WAGNER ECKHART ,  VOLKAMER KLAUS ,  HEFNER WERNER ,  WAGNER ULRICH

    IPC: C10L3/10 ,  B01D53/14 ,  B01D53/34 ,  C07C7/11 ,  C10K1/14

    Abstract: C02 and/or H2S are removed from gases which contain C02 and/or H2S by means of an aqueous absorption liquid containing an alkanolamine, by a process wherein the said gas is treated, in an absorption stage, at from 40 to 100.degree.C, with an aqueous absorption liquid containing from 20 to 70% by weight of methyldiethanolamine, the treated gas is taken off at the top of the absorption stage, the aqueous absorption liquid laden with C02 and/or H2S is taken off at the bottom of this stage and is regenerated by being let down in two or more flash stages, and the final flash stage is operated under reduced pressure and the regenerated absorption liquid is recycled to the absorption stage.

    19.
    发明专利
    未知

    公开(公告)号：NO851263L

    公开(公告)日：1985-09-30

    申请号：NO851263

    申请日：1985-03-28

    Applicant: BASF AG

    Inventor： VOLKAMER KLAUS ,  HEFNER WERNER ,  WAGNER ECKHART ,  WAGNER ULRICH

    IPC: B01D53/14 ,  B01D

    Abstract: 1. A process for removing CO2 and/or H2 S from a gas containing CO2 and/or H2 S by washing the gas with an aqueous alkanolamine-containing absorption liquid and subsequently regenerating the latter, wherein the aqueous absorption liquid used contains from 3 to 60% by weight of methyldiethanolamine and from 1 to 50% by weight of monoethanolamine, processes with two absorption stages arranged in series, in which regeneration of the laden absorption liquid is carried out using two flash stages and a stripping zone, to the extent they utilize an absorption liquid containing from 0.05 to 1 mole of monoethanolamine per litre, being excluded.

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