Mercury removal sorbent
AssigneeConocoPhillips Company
InventorsJoseph B. Cross, Glenn W. Dodwell, Marvin M. Johnson, Edward L. Sughrue, II, Jianhua Yao
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Abstract
A sorbent composition comprising a vanadium compound and a TiO2 support material is disclosed. Methods of making and using the composition to remove heavy metals or heavy metal containing compounds from a fluid stream are also provided. Such methods are particularly useful in the removal of mercury and mercury compounds from flue gas streams produced from the combustion of hydrocarbon-containing materials such as coal and petroleum fuels.
Claims28
A method of removing at least one elemental heavy metal from a fluid stream, said method comprising the step of:
- (a) contacting said fluid stream with a vanadium incorporated TiO2 material comprising a porous TiO2 support material having incorporated onto, into, or onto and into a vanadium containing compound for sorption and removal of at least a portion of said at least one elemental heavy metal from said fluid stream.
A process for the removal of at least one elemental heavy metal from a flue gas stream produced by the combustion of a hydrocarbon-containing fuel comprising the steps of:
- (a) contacting said flue gas stream with a first sorbent material comprising a vanadium incorporated TiO2 material comprising a porous TiO2 support material having incorporated onto, into, or onto and into a vanadium containing compound for sorbing and removing at least a portion of said at least one elemental heavy metal present in said flue gas stream from said flue gas stream;
- and
- (b) contacting said flue gas stream with a second sorbent material different from said first sorbent material for sorbing and removing at least a portion of said at least one elemental heavy metal not sorbed during step (a).
Dependencies are inferred from the claim text.