DICP OpenIR
Study on the preheating stage of low rank coals liquefaction: Product distribution, chemical structural change of coal and hydrogen transfer
Hao, Pan1,2; Bai, Zong-Qing1; Zhao, Zhi-Tong2,3; Yan, Jing-Chong4; Li, Xiao1,2; Guo, Zhen-Xing1; Xu, Jun-Li1,2; Bai, Jin1; Li, Wen1
KeywordLow Rank Coal Preheating Stage Product Distribution Hydrogen Transfer
Source PublicationFUEL PROCESSING TECHNOLOGY
2017-05-01
ISSN0378-3820
DOI10.1016/j.fuproc.2017.01.028
Volume159Pages:153-159
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Energy & Fuels ; Engineering, Chemical
WOS Research AreaChemistry ; Energy & Fuels ; Engineering
WOS KeywordCROSS-LINKING REACTIONS ; BROWN-COAL ; ORGANIC-SOLVENT ; LOW-TEMPERATURE ; FREE-RADICALS ; PYROLYSIS ; TETRALIN ; ELUCIDATION ; CONVERSION ; MOBILITY
AbstractPreheating 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.
Language英语
WOS IDWOS:000397353800017
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/169297
Collection中国科学院大连化学物理研究所
Corresponding AuthorBai, Zong-Qing
Affiliation1.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
Recommended Citation
GB/T 7714
Hao, Pan,Bai, Zong-Qing,Zhao, Zhi-Tong,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 Hao, Pan.,Bai, Zong-Qing.,Zhao, Zhi-Tong.,Yan, Jing-Chong.,Li, Xiao.,...&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 Hao, Pan,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.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Hao, Pan]'s Articles
[Bai, Zong-Qing]'s Articles
[Zhao, Zhi-Tong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Hao, Pan]'s Articles
[Bai, Zong-Qing]'s Articles
[Zhao, Zhi-Tong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Hao, Pan]'s Articles
[Bai, Zong-Qing]'s Articles
[Zhao, Zhi-Tong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.