摘要
以糠醛和环戊酮为原料,构建不同低共熔溶剂(LES)反应体系进行羟醛缩合反应,考察低共熔溶剂类别、体系物质的量之比、反应温度、反应时间等因素对羟醛缩合反应性能的影响规律。结果表明:在乳酸与氯化胆碱形成的LES体系下,且当乳酸与氯化胆碱物质的量之比为8∶1时,在100℃下反应210 min,糠醛可全部转化,缩合产物C10和C15的选择性分别为52.79%、46.67%,总收率为99.46%。酸性低共熔溶剂体系有益于实现生物质"一锅"转化为生物燃料中间体。
The aldol condensation reaction of furfural and cyclopentanone was carried out in different low eutectic solvent(LES)systems to produce biofuel intermediates. And the effects of LES types,reaction temperature and time on its yield were investigated. The results indicate that 100% furfural can be converted under the optimal reaction conditions of lactic acid/choline chloride molar ratio 8∶1,reaction temperature 100 ℃ and reaction time 210 min,in which total condensation yield rate is 99.46% and the selectivity of C10 and C10 is 52.79% and 46.67% respectively. Taking in all,the proposed acidic DES system will be beneficial to the"one pot"conversion of biomass into biofuel intermediates.
作者
王严严
刘云云
董继先
余强
王忠铭
袁振宏
Wang Yanyan;Liu Yunyun;Dong Jixian;Yu Qiang;Wang Zhongming;Yuan Zhenhong(College of Mechanical and Electrical Engineering,Shaanxi University of Science and Technology,Xi’an 710021,China;Guangzhou Institute of Energy Conversion,Key Laboratory of Renewable Energy,Chinese Academy of Sciences,Guangdong Key Laboratory of New and Renewable Energy Research and Development,Guangzhou 510640,China)
出处
《太阳能学报》
CSCD
北大核心
2021年第8期478-482,共5页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51876206)
广东省自然科学基金(2018A030313012)
广东省特支计划科技创新青年拔尖人才项目(2016TQ03N647)
陕西省自然科学基础研究计划青年项目(2018JQ5134)。
关键词
糠醛
生物质
燃料
乳酸
环戊酮
羟醛缩合
furfural
biomass
fuels
lactic acid
cyclopentanone
aldol condensation
