Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1986-05-01
1987-09-01
Doll, John
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
423244, C01B 1710, C01B 3120, C01B 1700, B01J 800
Patent
active
046908064
ABSTRACT:
A novel high sulfur capacity adsorbent capable of high rates of sulfur adsorption from process streams, which is readily regenerable by simple gas stripping. The adsorbent is characterized as a spinel compound of the formula M[N.sub.x Al.sub.2-x ]O.sub.4, where M is one or more divalent cations selected from the group consisting of copper, Group II-B, i.e., zinc, cadmium, and mercury, and chromium, and Iron Group metals, i.e., iron, cobalt, and nickel, and magnesium, N is one or more trivalent cations selected from the group consisting of Group VI-B, i.e., chromium, molybdenum, and tungsten, manganese, and Iron Group metals, i.e., iron, cobalt and nickel, x is a positive number of value greater than 0 and less than 2.0, and the total cationic charge of M[N.sub.x Al.sub.2-x ] is 8. The sorbent readily adsorbes sulfur, e.g., organosulfur compounds and hydrogen sulfide, from gas streams.
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Doll John
Exxon Research and Engineering Company
Freeman Lori S.
Naylor Henry E.
Proctor Llewellyn A.
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