Decontamination of toxic gases through formation of gas hydrate
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United States of America Patent
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N/A
Issued Date -
Nov 25, 2004
app pub date -
Feb 17, 2004
filing date -
Oct 16, 2001
priority date (Note) -
Abandoned
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Abstract
Areas in which toxic material has been released, particularly in gaseous form but also in liquid form, are decontaminated by forming gas hydrate of the toxic agent. Smaller-molecule toxic agents form sI or sII type hydrates, whereas larger-molecule toxic agents for sH type hydrates. A 'companion gas' or 'companion agent' is supplied to fill the smaller voids of the sH hydrate, thereby enabling larger-molecule toxic agents to form hydrates by filling the larger voids of the sH hydrate which, but for the presence of the smaller-molecule agent in the smaller voids, would be unstable and not form. Portable as well as fixed, permanently installed apparatus for conducting hydrate-based decontamination is also disclosed.
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