Hydrothermal Degradation of Cellulose at Temperature from 200 to 300 °C

被引：54
作者：
Gagic, Tanja [1 ]
Perva-Uzunalic, Amra [1 ]
Knez, Zeljko [1 ,2 ]
Skerget, Mojca [1 ]
机构：
[1] Univ Maribor, Fac Chem & Chem Engn, Lab Separat Proc & Prod Design, Smetanova Ul 17, Maribor 2000, Slovenia
[2] Univ Maribor, Fac Med, Taborska Ul 8, Maribor 2000, Slovenia
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2018年 / 57卷 / 18期
关键词：
HOT-COMPRESSED WATER; SUPERCRITICAL WATER; SUBCRITICAL WATER; MICROCRYSTALLINE CELLULOSE; DECOMPOSITION; HYDROLYSIS; GLUCOSE; BIOMASS; CONVERSION; GASIFICATION;
D O I：
10.1021/acs.iecr.8b00332
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Cellulose was treated with subcritical water in a batch reactor within a temperature range of 200-300 degrees C and reaction time of 5-60 min. The main phases, such as water-soluble fraction, acetone-soluble fraction and solid residue (remaining cellulose or char), were separated and analyzed. The analysis of water-soluble phase was done by HPLC equipped with UV and RI detector, whereas acetone-soluble phase was analyzed by GC-MS. Total sugar content was determined by the phenol-sulfuric acid colorimetric method. The properties of char such as specific surface area, pore volume, and pore diameter were determined by gas adsorption method. A water-soluble phase mainly consists of sugar monomers and monomer degradation products, while acetone-soluble phase, referred to also as bio-oil, consists of furans, phenols, carboxylic acids, aldehydes, ketones, and high molecular compounds. The reaction mechanism of cellulose in subcritical water has been proposed based on the obtained results.
引用
收藏
页码：6576 / 6584
页数：9
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