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    PROCESS FOR THE SIMULTANEOUS REMOVAL OF WATER AND HYDROGEN SULFIDE FROM GASES
    11.
    发明专利
    PROCESS FOR THE SIMULTANEOUS REMOVAL OF WATER AND HYDROGEN SULFIDE FROM GASES 未知

    公开(公告)号：DE3062177D1

    公开(公告)日：1983-04-07

    申请号：DE3062177

    申请日：1980-05-09

    Applicant: BASF AG

    Inventor： VOLKAMER KLAUS DR ,  WAGNER ULRICH DR ,  WAGNER ECKHART DR

    IPC: B01D53/52 ,  B01D53/14 ,  B01D53/26 ,  B01D53/77 ,  C10L3/10 ,  B01J19/04

    Abstract: A process for simultaneously removing water and hydrogen sulfide from gases containing both of these by treating the gases, in an absorption zone under superatmospheric pressure, with polyethylene glycol dialkyl ethers as a solvent, stripping the hydrogen sulfide from the loaded solvent, obtained from the absorption zone, in a desorption zone, removing the water, taken up in the absorption zone, from the solvent and recycling the regenerated solvent to the absorption zone, wherein the solvent additionally contains from 0.01 to 20% by weight, based on the solvent mixture, of an alcohol or ether boiling in the range from 50 DEG to 140 DEG C.

    PROCESS FOR ELIMINATING CO2 AND/OR H2S FROM GASES
    13.
    发明专利
    PROCESS FOR ELIMINATING CO2 AND/OR H2S FROM GASES 未知

    公开(公告)号：DE3560329D1

    公开(公告)日：1987-08-20

    申请号：DE3560329

    申请日：1985-03-21

    Applicant: BASF AG

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

    IPC: B01D53/14

    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.

    PROCESS FOR SEPARATING CONDENSABLE ALIPHATIC HYDROCARBONS AND ACID GASES FROM NATURAL GAS
    16.
    发明专利
    PROCESS FOR SEPARATING CONDENSABLE ALIPHATIC HYDROCARBONS AND ACID GASES FROM NATURAL GAS 未知

    公开(公告)号：DE3264508D1

    公开(公告)日：1985-08-08

    申请号：DE3264508

    申请日：1982-03-23

    Applicant: BASF AG

    Inventor： WAGNER ECKHART DR ,  WAGNER ULRICH DR ,  VOLKAMER KLAUS DR ,  VODRAZKA WOLFGANG DR

    IPC: B01D53/14 ,  C07C7/11 ,  C07C9/04 ,  C10G5/04

    Abstract: A process for removing condensable aliphatic hydrocarbons and acidic gases such as H2S, CO2 and COS from natural gas containing these, wherein the natural gas is initially treated with polyethylene glycol dialkyl ethers, as the solvent, in a first absorption stage to effect absorption of the condensable aliphatic hydrocarbons; the natural gas drawn off from the first absorption stage is then treated with polyethylene glycol dialkyl ethers, as the solvent, under superatmospheric pressure in a second absorption stage, the acidic gases being completely or partly absorbed; the solvent charged with the condensable aliphatic hydrocarbons which is obtained from the first absorption stage is treated with water in an extraction stage, to form a hydrocarbon phase containing the condensable aliphatic hydrocarbons and an aqueous dialkyl ether phase, and the hydrocarbon phase is separated from the aqueous dialkyl ether phase. The solvent charged with acid gases which is obtained from the second absorption stage is regenerated by expansion and/or stripping in a regeneration stage and the regenerated solvent is recycled to the absorption.

    20.
    发明专利
    未知

    公开(公告)号：DE3482448D1

    公开(公告)日：1990-07-19

    申请号：DE3482448

    申请日：1984-03-02

    Applicant: BASF AG

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

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

    Abstract: CO2 and/or H2S are removed from gases which contain CO2 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 DEG to 100 DEG 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 CO2 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.

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