Circulating condensation treatment of dry dehumidifier regenerating gas
AssigneeFuji Photo Film Co., Ltd.
InventorsShinji Fukuhori, Keiichiro Kametani
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Abstract
A method for removing moisture from gas containing vapor of a solvent using a dry dehumidifier, includes removing moisture from at least a part of dehumidifier regenerating outlet gas and reusing the dehumidified gas as regenerating gas. Reuse of partial gas on the regenerating outlet side makes it possible to condense efficiently vapor of a solvent contained in exhaust gas as dehumidification is continued, to produce small quantity of high concentration gas thereby, and in case of making removal treatment of vapor of a solvent to miniaturize an apparatus for this purpose as well as to reduce prominently costs required for equipments and others.
Claims16
A method for removing moisture from gas containing vapor of a solvent using a dry dehumidifier, comprising:
- cooling a part of regenerating outlet gas of the dehumidifier to remove moisture,
- circulating the dehumidified regenerating outlet gas to reuse as regenerating gas,
- exhausting the residual part of the regenerating outlet gas, and
- subjecting the exhausted gas to removal treatment.
A method for removing moisture from gas containing vapor of a solvent using a dry dehumidifier, comprising the steps of:
- (a) provIding the gas containing vapor of the solvent to the dry dehumidifier;
- (b) provIdIng regenerating gas to the dry dehumidifier to produce a dry gas and a regenerating outlet gas;
- (c) condensing vapor of the solvent in the regenerating outlet gas of the dehumidifier to remove the solvent;
- (d) after step (c), cooling a part of the regenerating outlet gas to remove moisture and produce a dehumidified regenerating outlet gas;
- and
- (e) circulating the dehumidified regenerating outlet gas to reuse as regenerating gas.
A method for removing moisture from gas containing vapor of a solvent using a dry dehumidifier, comprising:
- removing moisture from a part of regenerating outlet gas of the dehumidifier,
- circulating the dehumidified regenerating outlet gas to reuse as regenerating gas,
- exhausting the residual part of the regenerating outlet gas, and
- subjecting the exhausted gas to removal treatment.
A method for removing moisture from gas containing vapor of a solvent using a dry dehumidifier, comprising the steps of:
- (a) providing the gas containing vapor of the solvent to the dry dehumidifier;
- (b) providing regenerating gas to the dry dehumidifier to produce dry gas and a regenerating outlet gas;
- (c) condensing vapor of the solvent in the regenerating outlet gas of the dehumidifier to remove the solvent;
- (d) after step (c), removing moisture from at least a part of the regenerating outlet gas to produce a dehumidified regenerating outlet gas;
- and
- (e) circulating the dehumidified regenerating outlet gas to reuse as regenerating gas.
Dependencies are inferred from the claim text.