摘要
开发可再生的生物液体燃料可以增加能源供应,减轻环境污染。本研究以生物柴油加氢脱氧得到的生物烷烃为原料,采用Pt/Al-MCM-41为加氢裂化催化剂制备生物航空煤油。实验以硅铝比为10的Al-MCM-41为载体,通过改变Pt负载量,制备了金属/酸性不同配比的催化剂。在配比值C_(Pt)/C_A为0.182~0.338范围内,随着C_(Pt)/C_A值的增加,催化剂的加氢裂化活性和对煤油的选择性均逐渐增加,但太高的C_(Pt)/C_A值会引起Pt颗粒团聚,不仅造成催化剂浪费而且会降低催化活性和对煤油的选择性。C_(Pt)/C_A为0.203是较理想的配比值,在此配比值下,生物烷烃的转化率、煤油产率和煤汽比分别为98.7%、47.0%和1.12。
The development of renewable liquid biofuel is a crucial route to increase the energy supply and reduce the pollutant emission. The catalysts were tested in the hydrocracking of bio - alkanes, produced from biodiesel hydrodeoxygenation for producing the bio-jet fuel. The ratio of metal sites to acid sites（ Cpt/CA ）on Pt/Al- MCM - 41 bifunctional catalyst was important to both the catalyst activity and product selectivity. Catalysts with different metal/acid ratios were prepared on Al -MCM -41 support with Si/Al ratio of 10 using various platinum loadings. Both the hydrocracking activity and selectivity to kerosene increased with the increasing in Cpt/CA ratio in the range of 0. 182 -0. 338. However, too high metal/acid ratio could cause the agglomeration of platinum particles, resulting in the waste of catalyst and reduction of catalyst activity and selectivity to kerosene. The optimal CPt/CA ratio was 0. 203, under which the bio- alkanes conversion, kerosene yield and kerosene/gasoline ratio could reach 98.7% ,47.0% and 1.12, respectively.
作者
卢美贞
彭礼波
解庆龙
聂勇
刘学军
计建炳
董华军
Lu Meizhen;Peng Libo;Xie Qinglong;Nie Yong;Liu Xuejun;Ji Jianbing;Dong Huajun(College of Chemical Engineering, Zhejiang University of Technology Zhejiang Province Key Laboratory of Biofuel, Hangzhou 310014;Research Department,Hangzhou Toka Ink Co. ,Ltd,Hangzhou 310014)
出处
《中国粮油学报》
EI
CAS
CSCD
北大核心
2018年第5期60-65,共6页
Journal of the Chinese Cereals and Oils Association
基金
浙江省自然科学基金(LQ14B060002)
浙江省公益性分析测试项目(B101017012)
