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:
May. 14, 2013
Filed:
Sep. 24, 2010
Masaru Nakaiwa, Tsukuba, JP;
Toshihiro Wakabayashi, Narashino, JP;
Akihiko Tamakoshi, Narashino, JP;
Masaru Nakaiwa, Tsukuba, JP;
Toshihiro Wakabayashi, Narashino, JP;
Akihiko Tamakoshi, Narashino, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Toyo Engineering Company, Tokyo, JP;
Abstract
Provided is a heat integrated distillation apparatus includes: rectifying column including a trayed section or a packed bed section; stripping column including a trayed section or a packed bed section located higher than rectifying column; first pipe for connecting top part of the stripping column with bottom part of the rectifying column; and compressor that compresses vapor from top part of the stripping column to feed the compressed vapor to bottom part of the rectifying column. The heat integrated distillation apparatus further includes: heat exchanger located either at the trayed section or a packed bed section of rectifying column or at the trayed section or a packed bed section of stripping column; second pipe; and third pipe for circulating fluids through the heat exchanger.