Upgrading of Bio-oil in Supercritical Ethanol: Using Furfural and Acetic Acid as Model Compounds

被引：0
|
作者：
Chen, Wen [1 ]
Luo, Zhongyang [1 ]
Yang, Yi [1 ]
Li, Guoxiang [1 ]
Zhang, Jixiang [1 ]
Dang, Qi [1 ]
机构：
[1] Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R China
来源：
BIORESOURCES | 2013年 / 8卷 / 03期
关键词：
Bio-oil; Upgrading; Ethanol; Furfural; Catalysts; STEP HYDROGENATION-ESTERIFICATION; BIOMASS PYROLYSIS OIL; ALDOL-CONDENSATION; OXYGENATE COMPONENTS; HZSM-5; ZEOLITE; CATALYSTS; PHASE; HYDROTREATMENT; TRANSFORMATION; KETONES;
D O I：
暂无
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
The upgrading of bio-oil in supercritical ethanol was investigated using furfural and acetic acid as model compounds with the aim of exploring the reaction pathways. The effects of catalysts, temperature, cold H-2 pressure, and the presence of other compounds were studied. Based on products analysis, upgrading with Pt/HZSM-5 improved performance over Pd/HZSM-5 and Ru/HZSM-5. Moreover, the catalytic performance of Pt/HZSM-5 could be enhanced by adding Ni as a second metal. Complete conversion of acetic acid and 83.06% conversion of furfural were achieved at 320 degrees C and 1.0 MPa of cold H-2 pressure. The presence of acetone was found to increase the conversion of furfural. Through gas chromatography-mass spectrometry (GC-MS) analysis, the reaction pathways of furfural and acetic acid were clarified. It was concluded that it is possible to combine different reactions including esterification, hydrogenation, ring opening, isomerization, aldol condensation, and acetalization in supercritical ethanol.
引用
收藏
页码：3934 / 3952
页数：19
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