METHOD FOR EXTRACTING BUTYRIC ACID FROM THE BUTYRATE SALT OF MICROORGANISM FERMENTED LIQUID AND CHEMICALLY CONVERTING BUTYRIC ACID INTO BIOFUEL

WIPO Patent Application WO/2010/074469

A2

The present invention relates to a method for extracting butyric acid by applying pressurized carbon dioxide to the fermented liquid produced from the strain that produces the butyric acid. More particularly, the present invention relates to a method for producing butyric acid by converting the butyrate salt bound with a cation contained in the fermented liquid produced from the strain that produces the butyric acid into a butyric acid which can be easily extracted by a solvent, by using pressurized carbon dioxide, and extracting butyric acid by using an organic solvent. Further, the present invention relates to a method for producing butanol by enabling the butyric acid extracted by the above-described method to react with hydrogen, and to a method for producing butanol by enabling the thus-extracted butyric acid to sequentially react with butanol and hydrogen. The present invention involves converting the butyrate salt contained in the fermented liquid into a butyric acid to significantly improve the efficiency of the solvent-extraction of butyric acid from the fermented liquid. As a result, the present invention produces a butyric acid in a biological manner as well as in an efficient and economically advantageous manner, and thus basically improves the competitiveness in price of bio-butanol which is produced using a biological method and a chemical method in sequence.

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KANG SIN YOUNG (KR)
PARK CHER HEE (KR)
YOON YOUNG SEEK (KR)
LEE SEONG HO (KR)
KIM YUN HWA (KR)
PARK JOONG MIN (KR)
OH SEUNG HOON (KR)
CHO IN HO (KR)
SANG BYOUNG IN (KR)
PARK JAE YEON (KR)

PCT/KR2009/007639

July 01, 2010

December 21, 2009

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SK ENERGY CO LTD (KR)
KANG SIN YOUNG (KR)
PARK CHER HEE (KR)
YOON YOUNG SEEK (KR)
LEE SEONG HO (KR)
KIM YUN HWA (KR)
PARK JOONG MIN (KR)
OH SEUNG HOON (KR)
CHO IN HO (KR)
SANG BYOUNG IN (KR)
PARK JAE YEON (KR)

C12P7/52; C12P7/16; C12R1/145

US20080193989A1	2008-08-14
US20080248540A1	2008-10-09
US20070031919A1	2007-02-08

ENZYME AND MICROBIAL TECHNOLOGY vol. 38, 2006, pages 521 - 528
APPLIED AND ENVIRONMENTAL MICROBIOLOGY vol. 47, 1984, pages 1277 - 1283

LEE & PARK (KR)
청운특허법인 (KR)

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