Title:
THE PROCESS FOR PREPARING BIODIESEL
Document Type and Number:
WIPO Patent Application WO/2007/068137
Kind Code:
A1
Abstract:
The present invention discloses a process for preparing biodisel containing high purity fatty acid methyl ester by using the fraction of physically refining deodorizing distillation which is byproduct of vegetable oil as raw material. The process comprises: a) reacting the physically refining deodorizing fraction with methanol at 65-85 at the presence of acid catalysts, b) separating fatty acid methyl ester from the resultant mixture.The present invention also discloses a process for treating physically refining deodorizing fraction, comprising to esterify free fatty acid in the physically refining deodorizing fraction to acquire fatty acid methyl ester, and to extract phytosterols from residue free of fatty acid. The present invention reduces the cost by using byproduct of industy as raw material for preparing biodiesel and phytosterols.
Inventors:
CHIU SIU WAI (CN)
WONG YIU KWONG (CN)
WONG YIU KWONG (CN)
Application Number:
PCT/CN2005/001940
Publication Date:
June 21, 2007
Filing Date:
November 17, 2005
Export Citation:
Assignee:
UNIV HONG KONG CHINESE (CN)
CHIU SIU WAI (CN)
WONG YIU KWONG (CN)
CHIU SIU WAI (CN)
WONG YIU KWONG (CN)
International Classes:
C10G3/00; C11B3/04
Foreign References:
| CN1074217A | 1993-07-14 | |||
| CN1556174A | 2004-12-22 | |||
| CN1693472A | 2005-11-09 | |||
| US6768015B1 | 2004-07-27 |
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (Tower A InDo Building No. 48 A Zhichun Roa, Haidian District Beijing 8, CN)
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