Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1982-06-23
1984-02-07
Thomas, Earl C.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
423232, 252192, B01D 5334
Patent
active
044303122
ABSTRACT:
An improved, catalyzed process for the removal of CO.sub.2 from gas mixtures is described using a solution containing 15-40% by weight of potassium carbonate in which the absorption efficiency is enhanced by the addition of sodium or potassium vanadate equivalent to 2 to 10% by weight of V.sub.2 O.sub.5 and sodium or potassium borate equivalent to 1 to 10% by weight of KBO.sub.2 in which the weight ratio of equivalent KBO.sub.2 to equivalent V.sub.2 O.sub.5 is less than 1.5:1. It has been found that use of the described catalysts permits significant reductions in solution circulation rates (up to 45%), which leads to equipment and utility economies.
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patent: 3932582 (1976-01-01), Eickmeyer
patent: 3951844 (1976-04-01), Mago
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