Gas separation: apparatus – Solid sorbent apparatus – Plural solid sorbent beds
Patent
1994-12-15
1996-03-05
Spitzer, Robert
Gas separation: apparatus
Solid sorbent apparatus
Plural solid sorbent beds
96128, 96130, 96146, 96150, 55267, 55356, B01D 5312
Patent
active
054963958
ABSTRACT:
An organic solvent recovery system comprises a vacuum suction device for sucking a gas containing organic solvent from a soil contaminated by the organic solvent and a gas treating apparatus connected to a discharge side of the vacuum device through a connection line for adsorbing and recovering the organic solvent in the gas by activated carbon. The gas treating apparatus comprises an adsorption unit connected to the vacuum device provided with a multistage fluidized bed of the activated carbon for adsorbing the organic solvent in the gas, and a desorption unit arranged side by side with the adsorption unit and provided with a moving bed of the activated carbon for desorbing the organic solvent from the activated carbon, the desorption unit being further provided with a heating device for heating the activated carbon and a gas supply device for supplying a carrier gas for conveying a desorbed solvent gas. The circulation of the activated carbon is performed between the adsorption unit and the desorption unit through the first and second transfer units.
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Kureha Kagaku Kogyo Kabushiki Kaisha
Spitzer Robert
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