Flow treatments in evaporative desorption processes
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United States of America Patent
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Issued Date -
Oct 30, 2014
app pub date -
Apr 28, 2014
filing date -
Apr 29, 2013
priority date (Note) -
Abandoned
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Abstract
Treating an immediate exhaust of a thermal desorption chamber can improve the safety of the treatment process, such as reducing potential explosion or flammability when treating highly contaminated soil. Mean free paths of the exhaust gas exiting a thermal desorption chamber are restricted to limit the flame propagation and explosion fronts. For example, a section of the gas exhaust conduit can be filled with a porous media, which can assist in reducing or eliminating the potential explosion hazard in the conduit. Temperature and concentration of flammable elements can be monitored and controlled to prevent explosion hazards. An isolation valve and a pressure relief chimney can also be coupled to the exhaust of the thermal desorption chamber.
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