Catalytic Pyrolysis of Soybean Oil with CaO/Bio-Char Based Catalyst to Produce High Quality Biofuel  

作　　者：Lujiang Xu Geliang Xie Xianjun Zhou Yucheng Liu Zhen Fang 

机构地区：[1]Biomass Group,College of Engineering,Nanjing Agricultural University,Nanjing,210031,China

出　　处：《Journal of Renewable Materials》2022年第12期3107-3118,共12页可再生材料杂志（英文）

基　　金：The paper was supported by the Natural Science Foundation of China(No.51906112);Natural Science Foundation of Jiangsu Province(No.BK20180548);China Postdoctoral Science Foundation(2019M651852);“Innovation&Entrepreneurship Talents”Introduction Plan of Jiangsu Province.

摘　　要：In this paper,CaO/bio-char was synthesized by directly co-pyrolysis of Ca(OH)_(2) and rice straw,and used as catalyst to catalytic pyrolysis of soybean oil to produce high quality biofuel.In this co-pyrolysis process,CaO particles has been successfully embedded on the bio-char surface.During the catalytic pyrolysis process,CaO/biochar showed a good catalytic performance on the deoxygenation of soybean oil.Pyrolysis temperature affected the pyrolysis reactions and pyrolytic products distributions dramatically,higher pyrolysis temperature lead to seriously cracking reactions,lower bio-oil yield and higher gases yield,and lower pyrolysis temperature lead to higher bio-oil yield with higher oxygenated compounds content and lower hydrocarbons contents,the suitable pyrolysis temperature was around 650℃.Under the optimal conditions(650℃ with WHSV at 6.4 h^(−1) and carrier gas flow rate at 100 ml/min),the selectivity(%)of hydrocarbons in the bio-oil was more than 90%.CaO/bio-char catalyst still shows good catalytic deoxygenation activity after 4 cycles.1 g of CaO/bio-char catalyst can catalyze pyrolysis of 32 g of soybean oil to produce high-quality liquid fuel.Bio-char based catalyst has been proved to be a promising catalyst for catalytic conversion of triglyceride-based lipids into high quality liquid biofuel.

关 键 词：CARBONIZATION CaO/bio-char catalytic pyrolysis DEOXYGENATION high quality biofuel 

分 类 号：O64[理学—物理化学]