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:
Dec. 30, 2008
Filed:
Aug. 29, 2003
Yoshio Seiki, Hiroshima, JP;
Kazuto Kobayashi, Hiroshima, JP;
Yoshiyuki Takeuchi, Hiroshima, JP;
Hiroyuki Osora, Hiroshima, JP;
Keiichi Akimoto, Tokyo, JP;
Noritaka Matsumoto, Tokyo, JP;
Motoki Numata, Kitakyusyu, JP;
Hiroaki Shimazu, Matsuyama, JP;
Yoshio Seiki, Hiroshima, JP;
Kazuto Kobayashi, Hiroshima, JP;
Yoshiyuki Takeuchi, Hiroshima, JP;
Hiroyuki Osora, Hiroshima, JP;
Keiichi Akimoto, Tokyo, JP;
Noritaka Matsumoto, Tokyo, JP;
Motoki Numata, Kitakyusyu, JP;
Hiroaki Shimazu, Matsuyama, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
A separation system has a distillation column, an overhead vapor supply pipe connected to the top of the distillation column, first and second branch pipes branching from the overhead vapor supply pipe and a superheater connected to the first branch pipe. A separator downstream of the superheater has a separation membrane for separating overhead vapor from the top of the distillation column into permeable vapor and nonpermeable vapor by allowing only a selected portion of the overhead vapor to permeate the separation membrane. A reflux unit has a condenser connected to the second branch pipe for cooling a portion of the overhead vapor into a liquid and a gas-liquid separator for separating gas from the liquid produced by cooling and returning the separated liquid into the top of the distillation column.