Pt/Al-MCM-41加氢裂化生物烷烃制备航空煤油及其影响因素研究Hydrocracking of Bio-Alkanes with Pt/Al-MCM-41 for Bio-Jet Fuel Production
卢美贞,李永强,刘学军,聂勇,陆向红,于凤文,计建炳
摘要(Abstract):
实验制备和表征了不同组成Pt/Al-MCM-41双功能催化剂,以生物柴油加氢脱氧得到的生物烷烃为原料进行加氢裂化制备生物航空煤油,考察了不同反应温度(300~340°C)、重时空速(0.75~1.75 h?1)、反应压力(1~5 MPa)和氢油比(700~2700)等反应条件对生物烷烃转化率和选择性的影响。结果表明,随着温度的升高,转化率显著增加,煤汽比随着反应温度的升高而下降;随着重时空速的升高,转化率降低,煤汽比上升;在较低压力(2~4 MPa)下,产物分布变化小,在5 MPa反应压力下,转化率迅速下降;随着氢油比的增加,转化率和煤汽比均逐渐升高。综合考虑选择性和转化率,适宜反应条件为:温度330℃、重时空速1 h?1、压力2~3 MPa、氢油比2200。
关键词(KeyWords): Pt/Al-MCM-41;加氢裂化;生物航空煤油;反应条件;转化率;煤汽比
基金项目(Foundation): 浙江省自然科学基金资助项目(LQ14B060002);; 国家自然科学基金资助项目(21306174)
作者(Author): 卢美贞,李永强,刘学军,聂勇,陆向红,于凤文,计建炳
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