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B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
Abstract
An absorbent liquid is circulated through an absorption stage operating under pressure. The liquid is brought into direct and intimate contact with the gaseous mixture to remove impurities. The process includes a regeneration stage operating at a pressure considerably below that of the absorption stage. The liquid is regenerated by expelling or convertin the impurities previously absorbed. The spent liquid extracted from the absorption stage is fed into an ejector where it expands and causes a pressure drop used to remove gaseous impurities previously absorbed.
NL7003151A1970-03-051970-03-05Removing impurities from gaseous mixtures
NL7003151A
(en)