Removing mercury from gases or liquids - by contact with supported copper sulphide absorbent

Removal of Hg from gases or liquids is carried out by contact with a fixed bed of an absorbent comprising Cu sulphide on a SiO2, Al2O3, SiO2-Al2O3, silicate, aluminate or aluminosilicate support. (pref. Al2O3 or a cement). The process can be used to treat natural gas, liquefied natural gas, and elec...

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Bibliographic Details
Main Author ANDRE SUGIER ET FLORENTIN LA VILLA
Format Patent
LanguageEnglish
French
Published 15.07.1977
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:Removal of Hg from gases or liquids is carried out by contact with a fixed bed of an absorbent comprising Cu sulphide on a SiO2, Al2O3, SiO2-Al2O3, silicate, aluminate or aluminosilicate support. (pref. Al2O3 or a cement). The process can be used to treat natural gas, liquefied natural gas, and electrolytically produced H2, etc. High space velocities (e.g. LHSV = 5000-40,000) can be used, and the absorbent is resistant to deactivation by absorption of C5+ hydrocarbons. The absorbent can contain 2-65 (pref. 5-50) wt.% of Cu sulphide. It can be activated by heating in the presence of a light hydrocarbon (opt. in the presence of steam). It can be regenerated by heating in a stream of purge gas (e.g. air, CH4 or H2) at 200-500 degrees C, opt. followed by resulphiding.
Bibliography:Application Number: FR19750039215