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US 5,354,363 AGranted
Heavy metal/particulate trap for hot gas clean-up
OwnerJesse J. Brown, Jr., Nancy R. Browninventors
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Abstract
A scrubber for industrial exhaust systems advantageously employs liquid gallium to adsorb vapor phase mercury as well as sub-micron sized particulates such as other trace metal constituents from a hot gas exhaust stream in an industrial exhaust system. The temperature of the liquid gallium is elevated for optimum adsorption efficiency, and subsequently lowered to separate the adsorbed mercury and other species.
Claims10
A method for cleaning up a hot gas stream, comprising the steps of:
- delivering a gaseous stream to liquid gallium metal;
- adsorbing constituents from said gaseous stream into a mixture with said liquid gallium metal;
- and
- separating said constituents from said mixture.
1 more element
A hot gas clean-up system;
- comprising:
- gallium metal;
- means for containing said gallium metal;
- means for delivering a gaseous stream to said means for containing said gallium metal;
- means for controlling the temperature of said gallium metal, said means for controlling being capable of adjusting the temperature of said gallium metal to allow for
- (i) adsorbing constituents from said gaseous stream into a liquid mixture with said gallium metal, and
- (ii) separating adsorbed constituents from said liquid mixture;
- and
- means for collecting said adsorbed constituents.
6 more elements
Dependencies are inferred from the claim text.