Back to results
US 4,743,276 AGranted
Method of separating carbon monoxide and carbon monoxide adsorbent used in this method
AssigneeNippon Kokan Kabushiki Kaisha
InventorsTaisuke Nishida, Kazuo Tajima, Yo Osada, Osamu Shigyo, Hiroaki Taniguchi
Life of this patent
Estimating the term…
Abstract
In a method of the invention for selectively adsorbing CO in a gas mixture containing at least CO and CO.sub.2 with an adsorbent and desorbing the adsorbed CO, the adsorbent carries one metal or a mixture of metals selected from Ni, Mn, Rh, Cu(I) and Ag, and an adsorption temperature is set to be 50.degree. to 250.degree. C. to allow a single-step treatment.
Claims11
A method of recovering carbon monoxide in a gas mixture containing at least carbon monoxide and carbon dioxide, comprising:
- selectively adsorbing carbon monoxide in the gas mixture on a Cu(I) adsorbent supported on a zeolite carrier selected from the group consisting of Y-type zeolite and mordenite-type zeolite and having a silica/alumina ratio of not more than 10, an effective pore diameter of not less than 0.38 nm (3.8A) and capable of adsorbing carbon monoxide, the adsorption temperature being 80.degree. C. to 250.degree. C.;
- separating the adsorbed carbon monoxide;
- and
- recovering the separated carbon monoxide.
1 more element
Dependencies are inferred from the claim text.