Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1989-07-21
1990-10-16
Spitzer, Robert
Gas separation
Means within gas stream for conducting concentrate to collector
55185, 55190, 55204, 55208, 55387, B01D 5304, B01D 1900
Patent
active
049631683
ABSTRACT:
Apparatus for removing solvent vapor from a process air stream including at least first and second tanks each containing a carbon bed and alternately connected to a solvent laden air inlet duct and an outlet duct for respectively directing the solvent laden process air into desorbing contact with the carbon bed while providing an exit flow path for the treated process air stream to be discharged from the tank. When the carbon bed is saturated with adsorbed solvent, the inlet and outlet ducts close and are switched to supply solvent laden process air to the other tank to achieve continuous processing of the air stream. The saturated tank is provided with steam which flows through the carbon to desorb solvent. The desorbed solvent laden steam enters a condenser where the steam and solvent vapor are condensed and drained to a separator through a bottom outlet in the condenser. A second outlet from the condenser directs solvent vapor and air which does not condense into a swirl chamber of a degasser where the air/vapor separate from the entrained condensate. The condensate drains from the chamber through a bottom outlet. The solvent vapor/air exits the chamber through an upper air inlet to rejoin the solvent laden process air in the inlet duct.
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Allied-Signal Inc.
Friedenson Jay P.
Spitzer Robert
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