Method of eliminating mercury or arsenic from a fluid in the presence of a mercury and/or arsenic recovery mass
AssigneeInstitut Francais du Petrole
InventorsCharles Cameron, Philippe Courty, Jean-Paul Boitiaux, Philipe Varin, Gerard Leger
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Abstract
The invention relates to a method of eliminating mercury or arsenic from a fluid in the presence of a solid mass for the recovery of mercury and/or arsenic. The said mass contains copper and sulphur at least partly in the form of copper sulphide and results (a) from the incorporation of a copper compound other than a sulphide into a solid mineral support, (b) possible calcination of the product obtained in stage (a), and from bringing the product obtained previously into contact with elementary sulphur and (d) a heat treatment.
Claims16
A method of eliminating from a fluid at least one metal or metal compound selected from the group consisting of mercury and arsenic, comprising contacting said fluid with a solid mercury and/or arsenic recovery mass consisting essentially of a solid mineral dispersant or support containing copper sulfide, said mass having been produced by the following process:
- (a) providing a solid mineral dispersant or support having incorporated therein copper oxide,
- (b) contacting said solid mineral dispersant or support with elementary sulfur, and
- (c) heating resultant product obtained in stage (b) in a non-oxidizing atmosphere at a temperature and for a period sufficient to form at least copper sulfide.
Dependencies are inferred from the claim text.