The Enzymatic Conversion of Brown Grease to Biodiesel in a Solvent-free Medium

被引：2
|
作者：
Fan, X. [1 ]
Burton, R. [1 ]
Austic, G. [1 ]
机构：
[1] Piedmont Biofuels Ind, Pittsboro, NC 27312 USA
来源：
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS | 2013年 / 35卷 / 18期
关键词：
biodiesel; brown grease; Novozym; 435; stability; transesterification; PALM OIL; TRANSESTERIFICATION; KINETICS; LIPASE;
D O I：
10.1080/15567036.2010.531505
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Brown grease was used in this study on the conversion to biodiesel fatty acid methyl ester (FAME) by a two-stage reaction comprising esterification and transesterification using Novozym 435 in a solvent-free medium. The effects of methanol amounts and enzyme concentration on the first-stage reaction, and the operational stability of Novozym 435 in the two-stage reaction were investigated. The addition of biodiesel into the reaction system prior to two-stage reaction prevented the lipase from deactivation caused by excess amounts of methanol. Contents of >95 wt% FAME could be achieved even after 15 cycle reactions.
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页码：1779 / 1786
页数：8
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