Hydrothermal liquefaction of corn straw with mixed catalysts for the production of bio-oil and aromatic compounds

被引：49

作者：

Chen, Yongxing ^{[1
]}

Dong, Lin ^{[2
]}

Miao, Jiaxin ^{[1
]}

Wang, Jun ^{[1
]}

Zhu, Chaosheng ^{[1
]}

Xu, Yongyan ^{[1
]}

Chen, GuangYing ^{[1
]}

Liu, Jin ^{[3
]}

机构：

[1] Zhoukou Normal Univ, Sch Chem & Chem Engn, Wenchang Ave, Zhoukou, Henan, Peoples R China

[2] Zhoukou Normal Univ, Sch Math & Stat, Wenchang Ave, Zhoukou, Henan, Peoples R China

[3] Henan Key Lab Rare Earth Funct Mat, Zhoukou, Henan, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2019年 / 294卷

基金：

中国国家自然科学基金;

关键词：

Hydrothermal liquefaction; Bio-oil; Catalysis; Corn straw; Synergistic effect; RICE HUSK; PYROLYSIS; STALK; CONVERSION; MICROALGA; DIGESTATE; CORNSTALK; KINETICS; SYSTEM; YIELD;

D O I：

10.1016/j.biortech.2019.122148

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this study, hydrothermal liquefaction (HTL) of corn straw at different operation temperatures, reaction time and catalyst dosage were investigated, and the main product was heavy bio-oil. Results showed that CuO + NaOH have a synergistic effect in the HTL of corn straw. The product distribution and composition were also studied during the process, in which aromatic compounds achieved the highest proportion in heavy bio-oil. Moreover, the yield of aromatic compounds in hydrothermal products increased under simultaneous action of homogeneous and heterogeneous catalysts. The maximum ratio of aromatic compounds was 89.84% under condition of temperature 230 degrees C, reaction time 1 h, CuO content 3 g and NaOH 100 mL (1 mol.L-1). GC-MS analysis indicated that the major organic compounds in heavy bio-oil at temperatures between 210 degrees C and 270 degrees C were interestingly similar. SEM, XRD, H-2-TPR and XPS analysis showed that CuO was completely reduced to copper in the process.

引用

页数：7

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