The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 13, 1992
Filed:
May. 17, 1991
Yoshinori Suzuki, Kanagawa, JP;
Sadao Kumazawa, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A solvent recovery treatment method of adsorbing at least two kinds of solvent-gas containing gases different in solvent content concentration, wherein: a rarefied solvent-gas containing gas is first passed through a first adsorbing device; the rarefied gas passed through the first device is switched to be passed through the second adsorbing device after a predetermined time has elapsed while a dense solvent-gas containing gas begins to be passed through the first adsorbing device; the rarefied gas passed through the second device is switched to be passed through a third adsorbing device after the predetermined time while the dense gas passed through the first device is switched to be passed through the second absorbing device, and the first adsorbing device is made to perform regenerating operation. The above operations are successively repeated according to necessity. By this method, the adsorbing faculty of an adsorbing agent can be utilized fully, and the equipment rate of the adsorbing device and the adsorbing agent regeneration cost per unit solvent treatment can be reduced.