Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1992-09-08
1996-01-02
Straub, Gary P.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
423220, 423232, 502400, 95117, 95139, C01B 3120, C01B 500, B01D 5314
Patent
active
054806259
ABSTRACT:
Carbon dioxide sorption using a metal oxide-alkali metal carbonate sorbent typically requires a relative humidity of greater than 25% in order to obtain reaction rate constants of about 2.0 to 3.0 sec..sup.1 (see Equation 6). The incorporation of alkali halide salt into the metal oxide-alkali metal carbonate sorbent maintains rate constants of about 2.0 to about 4.0 sec..sup.1 at relative humidities below 25%. Therefore, the hygroscopic alkali halide salt attracts water, thereby providing the necessary hydroxide ions for enhanced absorption at low relative humidities.
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Birbara Philip J.
Nalette Timothy A.
Bonzagni Mary R.
Straub Gary P.
United Technologies Corporation
Vanoy Timothy C.
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