公开(公告)号：AT66447T

公开(公告)日：1991-09-15

申请号：AT88104604

申请日：1988-03-23

Applicant: BASF AG

Inventor： KAIBEL GERD DR ,  HEFNER WERNER DR ,  KELLER PETER DR ,  DREWITZ WERNER

IPC: C07C7/08 ,  C07C1/00 ,  C07C7/00 ,  C07C7/04 ,  C07C11/167 ,  C07C67/00

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.

公开(公告)号：AT53509T

公开(公告)日：1990-06-15

申请号：AT84102206

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

公开(公告)号：AT28271T

公开(公告)日：1987-08-15

申请号：AT85103307

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

公开(公告)号：DE3308088A1

公开(公告)日：1984-09-27

申请号：DE3308088

申请日：1983-03-08

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.