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.:

US 7357003 B1

Date of Patent:

Apr. 15, 2008

Filed:

Jun. 28, 2004

Process and apparatus for separation of hydrocarbons

Applicants:

Susumu Ohara, Chiba, JP;

Shoichi Yamaguchi, Chiba, JP;

Yasuyuki Yamamori, Chiba, JP;

Jahja Evelyne, Chiba, JP;

Inventors:

Susumu Ohara, Chiba, JP;

Shoichi Yamaguchi, Chiba, JP;

Yasuyuki Yamamori, Chiba, JP;

Jahja Evelyne, Chiba, JP;

Assignee:

Toyo Engineering Corporation, Tokyo, JP;

Attorney:

Oblon, Spivak, McClelland, Maier & Neustadt, P.C.

Primary Examiner:

William C Doerrler

Int. Cl.

CPC ...

F25J 3/00 (2006.01);

U.S. Cl.

CPC ...

Abstract

There are provided a process for separation of hydrocarbons including the steps of: (a) a feed gas is cooled and partly condensed, and separated into a gas and a liquid; (b) the liquid obtained in step (a) is supplied to a distillation column; (c) the gas obtained in step (a) is expanded by an expander and partly condensed, and separated into a gas and a liquid; (d) the liquid obtained in step (c) is supplied to the distillation column; (e) the gas obtained in step (c) is divided into a first portion and a second portion; (f) the first portion is supplied to the distillation column; (g) the second portion is condensed by being compressed and cooled, and then depressurized and supplied as a reflux to the distillation column; and (h) a residue gas is obtained from the top part of the distillation column and a heavier fraction is obtained from the bottom part of the distillation column; and an apparatus therefor. The process and apparatus enable efficient separation of hydrocarbons.

Find Patent Forward Citations

Ohara, Susumu. (2008). Process and apparatus for separation of hydrocarbons (U.S. Patent No. 7357003). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7357003

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