Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1980-11-18
1981-11-10
Thomas, Earl C.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
423220, 423229, B01D 5334
Patent
active
042998018
ABSTRACT:
A method for regenerating a spent alkanolamine absorbing solution containing absorbed H.sub.2 S and CO.sub.2 in two desorption stages to produce two separate acid gas streams. The first acid gas stream that contains substantially all of the H.sub.2 S is sent to a sulfur recovery system and the second acid gas stream that is primarily CO.sub.2 is vented to the atmosphere. The desorption stages are connected in series and both are operated at substantially the same above-atmospheric pressure within the range of 8-12 psig (1.54-1.82 atm abs).
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Homberg Otto A.
Laslo Joseph A.
Lynn James B.
Bethlehem Steel Corporation
Leach Michael
O'Keefe Joseph J.
Thomas Earl C.
Wilkinson Charles A.
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