TGA-FTIR analysis of co-pyrolysis characteristics of hydrochar and paper sludge

被引：81
作者：
Yao, Zhongliang [1 ]
Ma, Xiaoqian [1 ]
Wu, Zhendong [1 ]
Yao, Tingting [1 ]
机构：
[1] South China Univ Technol, Guangdong Key Lab Efficient & Clean Energy Utiliz, Sch Elect Power, 381 Wushan Rd, Guangzhou 510640, Guangdong, Peoples R China
来源：
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS | 2017年 / 123卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Co-pyrolysis; TG-FTIR; Hydrochar; Paper sludge; HYDROTHERMAL CARBONIZATION HTC; MUNICIPAL SOLID-WASTE; THERMOGRAVIMETRIC ANALYSIS; LIGNOCELLULOSIC BIOMASS; THERMAL-BEHAVIOR; OIL-SHALE; COCOMBUSTION; COMBUSTION; MICROALGAE; KINETICS;
D O I：
10.1016/j.jaap.2016.12.031
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The co-pyrolysis characteristics for hydrochar, paper sludge and their blends were investigated by TG-FTIR technique. The pyrolysis of paper sludge and hydrochar could be divided into three stages and one stage respectively. The model-fitting method was adopted to investigate the kinetic parameters of pyrolysis process, and the n-th order reaction model matched the pyrolysis process well. The activation energy was determined by the composition of the feedstocks and the stages of the pyrolysis. TG-FfIR indicated that CO2, H2O, CO, C-H, C = O, C-O and C = C groups were the main gases released from the pyrolysis process. There existed a coupling synergistic effect between these two feedstocks. The evolution of the gaseous products was consistent with the weight loss of the mixtures during co-pyrolysis. The co-pyrolysis effectiveness index was calculated. When the mass proportion of hydrochar was 90%, most desired products could be obtained. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：40 / 48
页数：9
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