Study on the preheating stage of low rank coals liquefaction: Product distribution, chemical structural change of coal and hydrogen transfer
文献类型：期刊论文
| 作者 | Xu, Jun-Li1,2; Hao, Pan1,2; Bai, Zong-Qing1; Zhao, Zhi-Tong2,3; Yan, Jing-Chong4; Li, Xiao1,2; Guo, Zhen-Xing1; Bai, Jin1; Li, Wen1 |
| 刊名 | FUEL PROCESSING TECHNOLOGY
 |
| 出版日期 | 2017-05-01 |
| 卷号 | 159页码:153-159 |
| 关键词 | Low Rank Coal Preheating Stage Product Distribution Hydrogen Transfer |
| ISSN号 | 0378-3820 |
| DOI | 10.1016/j.fuproc.2017.01.028 |
| 文献子类 | Article |
| 英文摘要 | Preheating stage of direct liquefaction of Yunnan lignite (YN) and Hami sub-bituminous coal (HM) in tetralin at temperature range of 200-350 degrees C was investigated under nitrogen atmosphere. In order to reveal the product characteristics and hydrogen transfer between coal and solvent during preheating process, thermo-gravimetric analyzer coupled with mass spectrometer (TG-MS), X-ray photoelectron spectroscopy (XPS) and gas chromatography coupled with mass spectrometer (GC-MS) were employed. The results show that yields of light products, i.e., oil, gas, and water, increase with raising temperature during the preheating process. YN and HM achieve 51.69% and 44.19% (daf) light products yields at 350 degrees C, respectively. Moreover, oxygen-containing functional groups, such as carboxyl, ethers, and alcohols in raw coal are reduced after preheating. In addition, hydrogen transfer achieves a perceptible extent even at 200 degrees C and the amount of transferred hydrogen increases with raising temperature. A positive dependence of hydrogen transfer on conversion is observed during preheating stage. Comparing the two coal samples, YN obtains higher conversion and hydrogen transfer due to its higher thermal reactivity at this temperature range. However, HM achieves higher oil yield than YN does at 350 degrees C since high hydrogen transfer amount and H/C ratio of raw coal promote the oil yield. (C) 2017 Elsevier B.V. All rights reserved. |
| WOS关键词 | CROSS-LINKING REACTIONS ; BROWN-COAL ; ORGANIC-SOLVENT ; LOW-TEMPERATURE ; FREE-RADICALS ; PYROLYSIS ; TETRALIN ; ELUCIDATION ; CONVERSION ; MOBILITY |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000397353800017 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/169296]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Bai, Zong-Qing |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China 4.Kyoto Univ Gokasho, Inst Adv Energy, Uji, Kyoto 6110011, Japan |
| 推荐引用方式 GB/T 7714 | Xu, Jun-Li,Hao, Pan,Bai, Zong-Qing,et al. Study on the preheating stage of low rank coals liquefaction: Product distribution, chemical structural change of coal and hydrogen transfer[J]. FUEL PROCESSING TECHNOLOGY,2017,159:153-159. |
| APA | Xu, Jun-Li.,Hao, Pan.,Bai, Zong-Qing.,Zhao, Zhi-Tong.,Yan, Jing-Chong.,...&Li, Wen.(2017).Study on the preheating stage of low rank coals liquefaction: Product distribution, chemical structural change of coal and hydrogen transfer.FUEL PROCESSING TECHNOLOGY,159,153-159. |
| MLA | Xu, Jun-Li,et al."Study on the preheating stage of low rank coals liquefaction: Product distribution, chemical structural change of coal and hydrogen transfer".FUEL PROCESSING TECHNOLOGY 159(2017):153-159. |
入库方式： OAI收割
来源：大连化学物理研究所
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