Thus, there is a considerable interest in developing renewable and environmentally friendly energy throughout the world. Severe energy security and environmental pollution have been caused due to extensive use of fossil fuels. Soybean oil catalytic cracking γ-Al 2O 3/CaO catalysts biofuel As for 35 wt.% γ-Al 2O 3/CaO, the addition of γ-Al 2O 3 was beneficial to generate alkenes (38.2 wt.%), arenes (10.6 wt.%) and alcohols (12.3 wt.%) with ketones decreasing (16.5 wt.%) via γ-hydrogen transfer reaction and disproportination. Calcium oxide would react with fatty acid to yield calcium carboxylates at 300-350 ✬, which were subsequently decomposed into hydrocarbons (57.9 wt.%) and ketones (22.6 wt.%) at 415-510 ✬. The paper focused on the variation of biofuel composition and cracking pathway caused by γ-Al 2O 3/CaO composite catalysts via gas chromatography-mass spectrometry (GC-MS) and thermogravimetric (TG) analysis. The maximum yield (70.0 wt.%) of biofuel with low acid value (6.7 mg KOH g -1) and oxygen content (5.6%), as well as high calorific value (44.2 MJ kg -1) was achieved over 35 wt.% γ-Al 2O 3/CaO at 480 ✬ and 3.72 h -1. The influence of catalysts, cracking temperature and weight hourly space velocity (WHSV) on the products distribution were investigated. In this paper, we report the catalytic cracking of soybean oil for biofuel over γ-Al 2O 3/CaO composite catalysts. ChinaZhejiang Province Key Laboratory of Biofuel, 310014 Hangzhou, Zhejiang, P. ChinaBiodiesel Laboratory of China Petroleum and Chemical Industry Federation, 310014 Hangzhou, Zhejiang, P. China Xuejun LiuĬollege of Chemical Engineering, Zhejiang University of Technology, 310014 Hangzhou, Zhejiang, P. China Yi WeiĬollege of Chemical Engineering, Zhejiang University of Technology, 310014 Hangzhou, Zhejiang, P.
China Jun WangĬollege of Chemical Engineering, Zhejiang University of Technology, 310014 Hangzhou, Zhejiang, P. China Tong LeiĬollege of Chemical Engineering, Zhejiang University of Technology, 310014 Hangzhou, Zhejiang, P. College of Chemical Engineering, Zhejiang University of Technology, 310014 Hangzhou, Zhejiang, P.
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