Kinetics of coal liquefaction during heating-up and isothermal stages
Kinetics of coal liquefaction during heating-up and isothermal stages
复制标题
加热和等温阶段煤液化动力学
DOI:
10.1016/j.fuel.2007.03.041
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发表时间:
2008-04
期刊:
影响因子:
7.4
通讯作者:
Haoquan Hu
中科院分区:
文献类型:
--
作者:
Bo Wu;Shuxun Hu;Xian Li;Shengwei Zhu;Haoquan Hu
Direct liquefaction of Shenhua bituminous coal was carried out in a 500ml autoclave with iron catalyst and coal liquefaction cycle-oil as solvent at initial hydrogen of 8.0MPa, residence time of 0–90min. To investigate the liquefaction kinetics, a model for heating-up and isothermal stages was developed to estimate the rate constants of both stages. In the model, the coal was divided into three parts, easy reactive part, hard reactive part and unreactive part, and four kinetic constants were used to describe the reaction mechanism. The results showed that the model is valid for both heating-up and isothermal stages of liquefaction perfectly. The rate-controlled process for coal liquefaction is the reaction of preasphaltene plus asphaltene (PAA) to oil plus gas (O+G). The upper-limiting conversion of isothermal stage was estimated by the kinetic calculation.
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影响因子:
--
作者:
S. Weller;E. Clark;M. G. Pelipetz
通讯作者:
S. Weller;E. Clark;M. G. Pelipetz
影响因子:
4.2
作者:
W. Ding;Jingcui Liang;L. L. Anderson-L.
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W. Ding;Jingcui Liang;L. L. Anderson-L.
DOI:
10.1021/i260067a014
发表时间:
1978-07
期刊:
Industrial & Engineering Chemistry Process Design and Development
影响因子:
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通讯作者:
Y. Shah;D. Cronauer;H. Mcilvried;J. Paraskos
影响因子:
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通讯作者:
K. Ikeda;K Sakawaki-;Y. Nogami;K. Inokuchi;K. Imada
影响因子:
7.5
作者:
P. Ramdoss;A. Tarrer
通讯作者:
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