Progress on biodiesel production with enzymatic catalysis in China / 生物工程学报
Chinese Journal of Biotechnology
;
(12): 903-906, 2010.
Article
in Chinese
| WPRIM
| ID: wpr-292192
ABSTRACT
This paper reports the progress of biodiesel production with enzymatic catalysis in Beijing University of Chemical Technology, one of the leaders in biodiesel R & D in China, which includes screening of high-yield lipase production strains, optimization and scale-up of the lipase fermentation process, lipase immobilization, bioreactor development and scale-up, biodiesel separation and purification and the by-product glycerol utilization. Firstly, lipase fermentation was carried out at industrial scale with the 5 m3 stirred tank bioreactor, and the enzyme activity as high as 8 000 IU/mL was achieved by the species Candida sp. 99-125. Then, the lipase was purified and immobilized on textile membranes. Furthermore, biodiesel production was performed in the 5 m3 stirred tank bioreactor with an enzyme dosage as low as 0.42%, and biodiesel that met the German biodiesel standard was produced. And in the meantime, the byproduct glycerol was used for the production of 1,3-propanediol to partly offset the production cost of biodiesel, and 76.1 g/L 1,3-propanediol was obtained in 30 L fermentor with the species Klebsiella pneumoniae.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Biotechnology
/
Plant Oils
/
Candida
/
Catalysis
/
Chemistry
/
China
/
Bioreactors
/
Economics
/
Enzymes, Immobilized
/
Esterification
Type of study:
Health economic evaluation
Country/Region as subject:
Asia
Language:
Chinese
Journal:
Chinese Journal of Biotechnology
Year:
2010
Type:
Article
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