用户名: 密码: 验证码:
木质纤维素基2-甲基呋喃和异亚丙基丙酮制备航空煤油范围环烷烃
详细信息    查看官网全文
摘要
近年来,由木质纤维素衍生的平台化合物制备可再生的柴油或航空煤油范围烷烃的研究得到广泛关注。~([1-4])甲基呋喃是糠醛选择性加氢的产物。异亚丙基丙酮是一种二级生物质基平台化合物,可以由丙酮自身羟醛缩合而得。而丙酮则可以通过用丙酮-丁醇-乙醇发酵法处理农林废弃物获得。航空煤油是链烃和环烷烃的混合物,需要较高能量密度。而之前有关木质纤维素基平台化合物制备柴油或航空煤油的文献多集中于具有直链或支链结构的链烃,而该类链烃的密度或体积热值较低。因此,我们通过设计和优化反应路线,开发了一种合成可再生航空煤油范围环烷烃的新方法,最终使2-甲基呋喃和异亚丙基丙酮的烷基化产物经水解开环-分子内羟醛缩合-加氢脱氧生成更高密度(0.76 vs.0.82 g mL~(-1))和较低冰点(217-219 K)的环烷烃。
In recent years, the synthesis of jet fuel range hydrocarbons with the lignocellulose derived platform compounds has drawn tremendous attention.~([1-4]) So far, compared with conventional jet fuel(a mixture of chain alkanes and cyclic hydrocarbons), those lignocellulosic chain alkanes have lower density(~0.76 g mL~(-1)) and volumetric heat values. As a solution to this problem, in this work, jet fuel range branched cycloalkanes with high density(0.82 g mL~(-1)) and low freezing point(217-219 K) was first prepared by the solvent-free intramolecular aldol condensation of the trione from the hydrolysis of the alkylation product of mesityl oxide and 2-methylfuran(or the one-pot reaction of mesityl oxide, 2-methylfuran and water), followed by hydrodeoxygenation(HDO).
引文
[1]J.R.Rostrup-Nielsen.Science,2005,308(5727):1421-2.
    [2]J.Q.Bond,D.M.Alonso,D.Wang,R.M.West.Science,2010,327(5969):1110-4.
    [3]S.Sankaranarayanapillai,S.Sreekumar,J.Gomes,Adam Grippo.Angew.Chem.Int.Ed.,2015,54(15):4673-7.
    [4]E.R.Sacia,M.Balakrishnan,M.H.Deaner,K.A.Goulas.Chem Sus Chem,2015,8(10):1726-36.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700