Effect of Residence Time on Hydrothermal Carbonization of Corn Cob Residual

被引：0

作者：

Zhang, Lei ^{[1
]}

Liu, Shanshan ^{[1
]}

Wang, Baobin ^{[1
]}

Wang, Qiang ^{[1
]}

Yang, Guihua ^{[1
]}

Chen, Jiachuan ^{[1
]}

机构：

[1] Qilu Univ Technol, Minist Educ, Key Lab Pulp & Paper Sci & Technol, Jinan 250353, Shandong, Peoples R China

来源：

BIORESOURCES | 2015年 / 10卷 / 03期

基金：

美国国家科学基金会;

关键词：

Residence time; Hydrothermal carbonization; Corn cob residues; Hydrochar; PRE-HYDROLYSIS LIQUOR; PULP PRODUCTION PROCESS; PREHYDROLYSIS LIQUOR; ACID-HYDROLYSIS; ACETIC-ACID; LIGNIN; BIOMASS; EXTRACTION; CONVERSION; RECOVERY;

D O I：

10.15376/biores.10.3.3979-3986

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：

Hydrothermal carbonization is a promising technique for conversion of industrial waste into valuable products. Producing hydrochar from corn cob residual (CCR) in a cost-effective way is key, from an economic standpoint. For this purpose, the effect of residence time in the range of 0.5 to 6 h was studied under the optimal temperature of 250 degrees C. Results showed that the higher heating value (HHV) of hydrochar increased approximately 40% in comparison to that of the raw material; however, prolonging the residence time beyond 0.5 h had a negligible effect on the HHV increase. Chemical compositions and H/C and O/C ratios of hydrochars revealed a minimal effect of longer residence time. Furthermore, thermogravimetric and derivative thermogravimetric analysis (TG/DTG), Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) analysis of hydrochars also verified that the pyrolysis behavior and chemical structure of hydrochars with various residence times were similar.

引用

页码：3979 / 3986

页数：8

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