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:
Mar. 06, 2018
Filed:
Mar. 07, 2013
Toyo Engineering Corporation, Tokyo, JP;
Toshihiro Wakabayashi, Narashino, JP;
Takato Nakao, Narashino, JP;
Toyo Engineering Corporation, Tokyo, JP;
Abstract
A distillation apparatus of the present invention includes high-pressure columncorresponding to a region above a heat exchanging section located at a lowermost part of a region including a trayed section or a packed bed section, which is used as a rectifying section; and low-pressure columnthat is located above as seen from high-pressure column, which integrates a region including a trayed section or a packed bed section which is used as a stripping section, with rectifying section corresponding portionthat corresponds to a region locating below the heat exchanging section located at the lowermost part in the rectifying section. Rectifying section corresponding portionis located on topof the stripping section in low-pressure columnso that rectifying section corresponding portioncontinues to the stripping section.