Abstract：
:A solid acid catalyst was prepared by sulfonating pyrolyzed rice husk with concentrated sulfuric acid, and the physical and chemical properties of the catalyst were characterized in detail. The catalyst was then used to simultaneously catalyze esterification and transesterification to produce biodiesel from waste cooking oil (WCO). In the presence of the as-prepared catalyst, the free fatty acid (FFA) conversion reached 98.17% after 3h, and the fatty acid methyl ester (FAME) yield reached 87.57% after 15 h. By contrast, the typical solid acid catalyst Amberlyst-15 obtained only 95.25% and 45.17% FFA conversion and FAME yield, respectively. Thus, the prepared catalyst had a high catalytic activity for simultaneous esterification and transesterification. In addition, the catalyst had excellent stability, thereby having potential use as a heterogeneous catalyst for biodiesel production from WCO with a high FFA content.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Li M,Zheng Y,Chen Y,Zhu Xdoi
10.1016/j.biortech.2013.12.070subject
Has Abstractpub_date
2014-02-01 00:00:00pages
345-8eissn
0960-8524issn
1873-2976pii
S0960-8524(13)01910-Xjournal_volume
154pub_type
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