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US 4,094,777 AGranted
Process for removing mercury from a gas or a liquid by absorption on a copper sulfide containing solid mass
AssigneeInstitut Francais du Petrole
InventorsAndre Sugier, Florentino LA Villa
Life of this patent
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Abstract
Mercury is removed from a gas or a liquid by absorption on a solid mass, which mass contains a carrier and sulfided copper.
Claims21
In a process for the elimination of mercury present in a gas or liquid comprising contacting the liquid or gas with an absorption mass in a fixed bed, the improvement wherein the absorption mass consists essentially of:
- (a) a solid dispersant or support selected from the group formed by silica, alumina, silica-alumina, silicates, aluminates and silico-aluminates,
- (b) copper whereof at least 30% is in the sulphide state and wherein the copper sulphide proportion in the absorption mass, calculated as copper, represents 2 to 65% of the weight of the mass, and
- (c) 0-5% of silver in the sulfide state.
Dependencies are inferred from the claim text.