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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 8895765 B1

PDFFull Text
Date of Patent:
Nov. 25, 2014

Filed:

Sep. 22, 2009

Method and apparatus for preparing alkyl ester fatty acid using fatty acid

Applicants:

Soo-hyun Kim, Incheon, KR;

Hyun-jun Cho, Seoul, KR;

Chan-woo Moon, Ulsan, KR;

Byoung-kyung Ham, Uiwang-si, KR;

Jae-bong Lim, Anyang-si, KR;

Inventors:

Soo-Hyun Kim, Incheon, KR;

Hyun-Jun Cho, Seoul, KR;

Chan-Woo Moon, Ulsan, KR;

Byoung-Kyung Ham, Uiwang-si, KR;

Jae-Bong Lim, Anyang-si, KR;

Assignee:

SK Chemicals Co., Ltd., Suwon-si, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Yate K Cutliff

Int. Cl.
CPC ...
C11C 3/04 (2006.01); B01J 8/00 (2006.01); C07C 67/08 (2006.01); C11C 1/08 (2006.01); C11C 3/00 (2006.01); B01J 8/04 (2006.01);
U.S. Cl.
CPC ...
C07C 67/08 (2013.01); B01J 8/0492 (2013.01); C11C 1/08 (2013.01); C11C 3/003 (2013.01); Y02E 50/13 (2013.01);
Abstract

A method for preparing fatty acid alkyl ester for bio-diesel fuel is disclosed wherein fatty acid, specifically fatty acid distillate reacts with alcohol. The method does not require the glycerin purification process, and has the superior conversion ratio of fatty acid. The method for preparing fatty acid alkyl ester for bio-diesel fuel comprises the step of carrying out a counter current type esterification reaction of fatty acid and alcohol in each tray of a counter current column reactor at a temperature of 200 to 350° C. and a pressure of 1 to 35 bar. Here the raw material of the fatty acid is fed to an upper part of the counter current column reactor and the alcohol is fed to a lower part of the counter current column reactor. The counter current column reactor has a number of trays which are installed horizontally to have a number of vertical compartments. Each of the number of trays has an opening part at one end thereof to communicate one compartment with an adjoining compartment. The opening parts of two adjoining trays are alternately installed with each other.

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