Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1977-09-26
1978-09-12
Thomas, Earl C.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
423228, 423229, 423232, 423234, 423242, 423243, 260677A, 260679A, 260683R, 210 42R, B01D 5334
Patent
active
041138376
ABSTRACT:
Novel process for removing polymer from aqueous absorbent solutions used to contact organic gas-containing gas streams comprising the steps of adjusting the polymer-containing aqueous absorbent solutions to a pH of not more than about 8.5, preferably not more than about 7.5, for example, about 6.0 to about 8.5, preferably about 7.0 to about 7.5, and removing the polymer from the resulting solutions by decantation and/or filtration. The novel process is particularly applicable to the system of removing acid gas from hydrocarbon-containing feed gases which contain one or more polymerizable components wherein the feed gas is contacted with an aqueous absorbent solution which absorbs the acid gas and, thereafter, the absorbent solution is stripped to rid it of said acid gas. The adjustment of pH can be accomplished by increasing the acid gas loading in the aqueous absorbent or by adding an acid, preferably one which will not form a heat stable salt with the absorbent. The pH adjustment, e.g., acidification, and filtration can be performed on the total mainstream or a portion thereof, i.e., a sidestream, before it is stripped.
REFERENCES:
patent: 2497954 (1950-02-01), McCulley
patent: 3598881 (1968-10-01), Kniel et al.
patent: 3660016 (1972-05-01), John et al.
patent: 3696162 (1972-10-01), Kniel
patent: 3911082 (1975-10-01), Rottmayer et al.
patent: 3926591 (1975-12-01), Wildmoser et al.
Butwell Kenneth Francis
Kendall John Edward
Thomas Earl C.
Union Carbide Corporation
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