Catalytic pyrolysis of larch sawdust for phenol-rich bio-oil using different catalysts

被引：61

作者：

Wang, Wenliang ^{[1
]}

Li, Xinping ^{[1
]}

Ye, Dan ^{[3
]}

Cai, LiPing ^{[2
]}

Sheldon, Q. ^{[2
]}

机构：

[1] Shaanxi Univ Sci & Technol, Coll Bioresources Chem & Mat Engn, Shaanxi Prov Key Lab Papermaking Technol & Specia, Xian 710021, Shaanxi, Peoples R China

[2] Univ North Texas, Mech & Energy Engn Dept, 3940 N Elm, Denton, TX 72076 USA

[3] Zhe Jiang Furniture & Hardware Res Inst, Hangzhou 311112, Zhejiang, Peoples R China

来源：

RENEWABLE ENERGY | 2018年 / 121卷

关键词：

Bio-oil; Total phenolic compounds; Catalytic pyrolysis; Catalyst Larch sawdust; MICROWAVE PYROLYSIS; LIGNOCELLULOSIC BIOMASS; ACTIVATED CARBON; CHEMICALS; BIOFUEL; LIGNIN; ZSM-5; BED;

D O I：

10.1016/j.renene.2018.01.018

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Different kinds of catalysts have a great influence on the characteristics and products of the biomass catalytic pyrolysis. Catalysts of Cu/C, Pd/C, Pd-Ag and H-Zeolites socony mobil #5 (HZSM-5) were selected and characterized by the X-ray diffraction (XRD) and field-emission scanning electron microscope (FE-SEM). Decomposition behaviors of the larch catalytic pyrolysis were studied by the ther-mogravimetric analyzer (TG). The total carboxylic acids (TCAs) and total phenolic compounds (TPCs) in bio-oil were determined using the non-aqueous potentiometric titration method. The chemical distribution of bio-oil was investigated by the gas chromatography/mass spectrometry (GC/MS). Results showed that the temperature of the maximum weight loss rate of larch was decreased by adding these four catalysts. The carbon residue rate was increased by using HZSM-5. The content of GC-detected phenols increased from 25.28% to 35.11% (area) by adding Pd/C. However, TCAs in bio-oil were decreased sharply with Pd-Ag and Pd/C. HZSM-5 promoted the formation of phenols and enhanced TPCs in bio-oils (26.56 wt%), which increased by approximately 35% compared to that from the non-catalytic pyrolysis process. This phenol-rich bio-oil can be used to replace the traditional phenol for the manufacturing of high-value biomaterials. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：146 / 152

页数：7

共 31 条

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