RECOVERY OF SOLVENT

RECOVERY OF SOLVENT

PURPOSE:To prevent the deterioration of an adsorbent, in a solvent recovery method using the adsorbent, by repeating an adsorbing cycle after the temp. of the adsorbent subjected desorption is lowered by a standing cooling method, a cooling water pipe method, a vacuum cooling method or a nitrogen ga...

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Hauptverfasser: NAGANO HAYAMI, HIRAO MASASHI
Format: Patent
Sprache:eng
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PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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creator NAGANO HAYAMI
HIRAO MASASHI
description PURPOSE:To prevent the deterioration of an adsorbent, in a solvent recovery method using the adsorbent, by repeating an adsorbing cycle after the temp. of the adsorbent subjected desorption is lowered by a standing cooling method, a cooling water pipe method, a vacuum cooling method or a nitrogen gas sealing recirculation method. CONSTITUTION:Air is passed through flow meters F1, F2 through a filter F and a blower B to enter solvent gas generating bins S1, S2 in a low temp. thermostatic tank H. A gas contacted and mixed with air from a diluting air flow meter Fo in a mixer M is passed through a wheat exchanger E to condition the temp. thereof and exhausted through an adsorbing tower T. After adsorption is finished, steam S is sent into the tower T to desorb a solvent therein and the solvent containing steam is supplied to a decanter D through a condenser C to be separated into drain water W and the recovered solvent PS. A cooling pipe and a vacuum cooling mechanism can added to the adsorbing tower T and a nitrogen gas sealing recirculation method can be further applied thereto.
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subjects PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
title RECOVERY OF SOLVENT
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