Temperature rise characteristics of ZhunDong coal during microwave pyrolysis

被引：42

作者：

Liu, Huan-Peng ^{[1
]}

Chen, Tai-Ping ^{[1
]}

Li, Yang ^{[1
]}

Song, Zhen-Yu ^{[1
]}

Wang, Shao-Wei ^{[1
]}

Wu, Shao-Hua ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Energy Sci & Engn, Harbin, Peoples R China

来源：

FUEL PROCESSING TECHNOLOGY | 2016年 / 148卷

关键词：

ZhunDong coal; Microwave; Pyrolysis; Temperature rise; Aromatic layer; DIELECTRIC-PROPERTIES; HYDROCARBONS; PARAMETERS; RELEVANT;

D O I：

10.1016/j.fuproc.2016.03.017

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A modified K-type thermocouple was used to study the temperature rise characteristics of ZhunDong raw coal and coal-absorber mixtures during microwave pyrolysis. The role of microwave absorber was discussed. The evolution of carbon crystallite structure in semi-char during pyrolysis was studied by means of X-ray diffraction. The relationship between the aromatic structure and the microwave absorption capability of semi-char was studied. The results showed that the assistant heating effect of absorber is only dominated in the initial devolatilization stage. Increasing the weight percentage of absorber can dramatically reduce the temperature rise time in the stage. In the intense devolatilization stage, the temperature rise rate of semi-char first increases dramatically and then decreases. The microwave absorption capability of semi-char is found to be controlled by the combined effects of the aromaticity and aromatic layer diameter. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：317 / 323

页数：7

共 50 条

[1] Chemical structure and pyrolysis characteristics of demineralized Zhundong Coal
Lin, Dan
Qiu, Penghua
Xie, Xing
Zhao, Yan
Chen, Gang
Zeng, Le
[J]. ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, 2018, 40 (03) : 282 - 287
[2] The Effect of Additive on Temperature Rising Characteristics during Coal Pyrolysis in Microwave Field
Liu, Quanrun
Xia, Hao
[J]. RENEWABLE AND SUSTAINABLE ENERGY II, PTS 1-4, 2012, 512-515 : 1790 - 1794
[3] An investigation of sodium transformation in Zhundong coal during pyrolysis
State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Hubei
430074, China
[J]. Kung Cheng Je Wu Li Hsueh Pao, 12 (2733-2737):
[4] Transformation mechanism of sodium during pyrolysis of Zhundong coal
Xu, Lianfei
Liu, Hui
Zhao, Deng
Cao, Qingxi
Gao, Jihui
Wu, Shaohua
[J]. FUEL, 2018, 233 : 29 - 36
[5] Evolution of Structure Properties during Zhundong Coal Pyrolysis
Dong, Qian
Zhang, Haixia
Zhu, Zhiping
[J]. NEW PARADIGM OF PARTICLE SCIENCE AND TECHNOLOGY, PROCEEDINGS OF THE 7TH WORLD CONGRESS ON PARTICLE TECHNOLOGY, 2015, 102 : 4 - 13
[6] Initial Deposition Feature during High-Temperature Pressurized Pyrolysis of a Typical Zhundong Coal
Lin, Xiongchao
Yang, Yuanping
Yang, Sasha
Li, Shouyi
Tian, Yajun
Wang, Yonggang
[J]. ENERGY & FUELS, 2016, 30 (08) : 6330 - 6341
[7] Experimental study on Zhundong coal's pyrolysis characteristics and gasification activity
[J]. Wang, Yungang (ygwang1986@mail.xjtu.edu.cn), 2016, Chinese Society for Electrical Engineering (36):
[8] Pyrolysis Characteristics of Jet Coal and Oxidation of Residues in Zhundong Coalfield Fires
Xin, Haihui
Sun, Jianguo
Zhang, Leilei
Tian, Wenjiang
Zhou, Banghao
Tang, Zuo
Qi, Xu-Yao
Di, Cuicui
Zhong, Xiaoxing
Wang, De-Ming
[J]. ACS OMEGA, 2021, 6 (32): : 20846 - 20854
[9] Evolution of char structure during non-isothermal low temperature pyrolysis of ZhunDong coal by microwave heating: A comparative study with conventional heating
Liu, Huanpeng
Chen, Taiping
Fang, Laixi
[J]. JOURNAL OF THE ENERGY INSTITUTE, 2020, 93 (03) : 1195 - 1206
[10] Effect of heating rate on pyrolysis characteristics and char structure of Zhundong lignite coal
Zhang, Xiaoyang
Zhou, Binxuan
An, Donghai
Cui, Lin
Zheng, Ying
Dong, Yong
[J]. Meitan Xuebao/Journal of the China Coal Society, 2019, 44 (02): : 604 - 610

← 1 2 3 4 5 →