Gas separation: processes – Solid sorption – With plural indirect heat transfer steps on solid sorbent or...
Patent
1996-05-08
1997-12-09
Spitzer, Robert
Gas separation: processes
Solid sorption
With plural indirect heat transfer steps on solid sorbent or...
95113, 95123, 95125, 95143, 95144, 95147, B01D 5304, B01D 5326
Patent
active
056955464
ABSTRACT:
A method for collecting volatile organic substances from off-gas containing moisture and volatile organic substances. After the moisture has been removed by a dehumidifying tower filled with moisture absorbent for selectively adsorbing the moisture from the gas containing the organic substances and the moisture, the organic substances are adsorbed and removed under a relatively low temperature condition. The organic substances is desorbed under a relatively high temperature condition from the adsorbing tower which is saturated with the organic substances. The desorbed organic substances are liquefied and collected under a low temperature and/or pressurizing condition. The dry gas from which the organic substances have been removed and made harmless is heated if necessary. Thereafter, the dry gas is purged in a counter flow manner in the dehumidifying tower which is saturated with the moisture to perform the regeneration of the moisture absorbent and is discharged to the outside of the system together with the desorbed moisture.
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Hamada Kenichi
Harada Takayuki
Izumi Jun
Tsutaya Hiroyuki
Yasutake Akinori
Mitsubishi Jukogyo Kabushiki Kaisha
Spitzer Robert
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