Combined sonic agglomerator/cross flow filtration apparatus and process for solid particle and/or liquid droplet removal from gas streams
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United States of America Patent
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-
Apr 5, 1983
Grant Date -
N/A
app pub date -
Aug 14, 1981
filing date -
Aug 14, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A gas filtration apparatus and process is disclosed combining heating to maintain undesired material in the form of liquid droplets, sonic agglomeration and porous cross flow filtration. The apparatus and process are particularly suited to gas streams comprising particulates and/or liquid droplets of under 10 microns in diameter, such as the effluent gas stream of coal gasifiers, which are at a high temperature and high pressure. Liquid droplets in the gas stream are agglomerated by sonic agglomeration, and a portion of the gas stream is then passed through a porous cross flow filter element for separation of the agglomerates resulting in a clean gas stream by a continuous, low pressure drop and self-cleaning filtration process. The gas stream may be seeded to enhance agglomeration and/or to induce chemical reaction of undesired gaseous components for their removal as liquids.
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