Gas absorption

Details Gas absorption Gas absorption

1999-08-10

2000-10-31

Smith, Duane S.

Gas separation: processes

Liquid contacting

And degasification of a liquid

95169, 95181, 95183, 95204, 95207, 95235, 95236, B01D 5314

Patent

active

061396052

ABSTRACT:
A double-loop process for the removal of specified gas or gases from a process gas by absorption with a liquid absorbent for said specified gas or gases wherein the process gas is contacted counter-currently in a first absorption stage with semi-lean absorbent liquid and then in a second absorption stage with lean absorbent liquid to give a sweet process gas and the absorbed gases are stripped from the laden absorbent liquid in a first stage giving a semi-lean absorbent liquid. Part of the semi-lean absorbent is recycled to the first absorption stage while the remainder is subjected to further stripping by counter-current contact with an auxiliary gas that has a concentration of the specified gas or gases that is lower than the concentration of the specified gas or gases in the process gas to give the lean absorbent liquid which is recycled to the second absorption stage. The auxiliary gas, which is especially a part stream of the sweet process gas, may be recycled, after use for stripping, to the process gas upstream of the first absorption stage. The process may be integrated with a glycol drying stage with regeneration of the wet glycol by stripping with the part stream of the sweet process gas before the latter is used for stripping the semi-lean absorbent liquid.

REFERENCES:
patent: 3104958 (1963-09-01), Smith et al.
patent: 3594985 (1971-07-01), Ameen et al.
patent: 3718006 (1973-02-01), Ranke et al.
patent: 4035166 (1977-07-01), Van Hecke
patent: 4050909 (1977-09-01), Ranke
patent: 4052176 (1977-10-01), Child et al.
patent: 4332596 (1982-06-01), Ranke et al.
patent: 4372925 (1983-02-01), Cornelisse
patent: 4381926 (1983-05-01), Karwat
patent: 4460385 (1984-07-01), Pan et al.
patent: 4797140 (1989-01-01), Landeck et al.
patent: 5133949 (1992-07-01), Elgue et al.
patent: 5137550 (1992-08-01), Hegarty et al.
patent: 5490873 (1996-02-01), Behrens et al.
patent: 5520724 (1996-05-01), Bauer et al.
patent: 5782958 (1998-07-01), Rojey et al.
patent: 6015451 (2000-01-01), Anderson et al.

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