Effects of process parameters on pore structure of semi-coke prepared by solid heat carrier with dry distillation
Effects of process parameters on pore structure of semi-coke prepared by solid heat carrier with dry distillation
复制标题
工艺参数对固体热载体干馏制备半焦孔结构的影响
DOI：
10.1016/j.ijmst.2013.05.003
复制
发表时间：
2013-05
影响因子：
11.8
通讯作者：
MIAO ZHENYONG
中科院分区：
文献类型：
--
作者：
ZHOU GUOLI;WU JIANJUN;MIAO ZHENYONG
以固体热载体为原料，采用单因素干馏法制备半焦。采用bruauer - emmet - teller （BET）和扫描电镜（SEM）对原煤和半焦的孔隙结构进行了表征。结果表明，半焦的吸附和解吸等温线并不重合。半焦表面孔隙分布较宽，其中中孔和微孔占相当大的比例。此外还有更多的次生孔隙。随着热载体终温度和恒温温度的升高，以及煤与热载体反应器体积比的减小，半焦的比表面积和孔容先快速增大后减小后增大，平均孔径迅速减小。SEM照片显示，半焦的表面变得越来越粗糙和有光泽。
The semi-coke was prepared by solid heat carrier with dry distillation in single factor method. The pore structures of raw coal and semi-coke were characterized by Brunauer–Emmett–Teller (BET) and scanning electron microscope (SEM). The results show that the adsorption and desorption isotherm of semi-coke are not coincident. There was a wide pore distribution on the semi-coke, in which mesopores and micropores account for a considerable proportion. Also there are many more secondary pores. With the increase of the final temperature of heat carrier and constant temperature, as well as the decrease of volume ratio of coal and hot carrier reactor, specific surface area and pore volume of semi-coke increased rapidly first and then decreased and finally increased, along with the rapidly reduction of average pore size. SEM photos show that the surface of semi-coke becomes increasingly rough and glossy.
登录
查看更多内容
影响因子：
7.5
作者：
G. Hu;Haojie Fan;Ya-qin Liu
通讯作者：
G. Hu;Haojie Fan;Ya-qin Liu
DOI：
10.1016/j.cep.2007.09.021
发表时间：
2008-09
期刊：
Chemical Engineering and Processing
影响因子：
--
作者：
Guoxin Hu;Gong Xiwu;Huang Hao;Hao-jie Fan;W. Zheng
通讯作者：
Guoxin Hu;Gong Xiwu;Huang Hao;Hao-jie Fan;W. Zheng
DOI：
--
发表时间：
2007
期刊：
Journal of Shandong University of Science and Technology
影响因子：
--
作者：
B. Ji-cheng
通讯作者：
B. Ji-cheng
DOI：
10.1016/j.mstc.2011.01.003
发表时间：
2011-07
期刊：
Mining Science and Technology (china)
影响因子：
--
作者：
Jun Zhang;Q. Xie;Juan Liu;Mingshun Yang;Xinglong Yao
通讯作者：
Jun Zhang;Q. Xie;Juan Liu;Mingshun Yang;Xinglong Yao
影响因子：
10.9
作者：
DUBININ, MM
通讯作者：
DUBININ, MM