Cryo-mechanical vapor recovery apparatus
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United States of America Patent
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Mar 8, 1994
Grant Date -
N/A
app pub date -
Apr 21, 1992
filing date -
Apr 21, 1992
priority date (Note) -
Expired
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Abstract
Hybrid cryo-mechanical apparatus is provided to collect condensable vapors from an incoming gas flow. The gas flow is refrigerated in a series of upstream mechanical refrigeration stages, and fed to an indirect contact heat exchanger suitable for operation with a cryogen refrigerant. Temperature of the cryogen leaving the heat exchanger is monitored, and is used to operate a control valve which throttles the heat exchanger output.
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