IMECH-IR  > 高温气体动力学国家重点实验室
Deoxygenation of Chinese long-flame coal in low-temperature pyrolysis
Wang ZB; Wang C; Kang RN; Bin F(宾峰); Wei XL(魏小林)
Source PublicationJOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
2018-03-01
Volume131Issue:3Pages:3025-3033
ISSN1388-6150
AbstractLong-flame coal is a typical low-ranked coal that is not fully utilized and has a huge global reserve. High-content oxygen is a significant negative factor for low-rank coal utilization. The TG-FTIR-GC/MS method was applied to investigate the migration behavior of oxygen and the variation in the properties of Chinese long-flame coal during low-temperature pyrolysis. It was found that the oxygen migration ratios in long-flame coal toward gas and tar were 47.7 and 5.2%, respectively, at 550 A degrees C, that the initial oxygen migration temperatures of hydroxyl, carboxyl, carbonyl and ether bonds were 500, 200, 300 and 350 A degrees C, respectively, that the decomposition rates were 8.2, 90, 99.2 and 86% at 550 A degrees C, respectively, that the oxygen in gas existed mainly in the form of CO2 and CO, and that the oxygen in tar existed mainly in the form of phenolic compounds. The further removal of oxygen was due to the decomposition of hydroxyl and a small amount of stable ether bonds. Furthermore, deoxygenation suggested that the decrease in oxygen had a positive effect on coal liquefaction and resulted in a decrease in its hydrophilicity.
KeywordCoal Low-temperature pyrolysis Oxygen migration Deoxygenation
DOI10.1007/s10973-017-6753-y
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000425965400089
WOS KeywordLOW-RANK COAL ; TG-FTIR ; FUNCTIONAL-GROUPS ; ORGANIC OXYGEN ; BIOMASS ; EVOLUTION ; KINETICS ; COMBUSTION ; OXIDATION ; CHARS
WOS Research AreaThermodynamics ; Chemistry, Analytical ; Chemistry, Physical
WOS SubjectThermodynamics ; Chemistry
Funding OrganizationNational Key RD Program [2016YFB0601501]
Classification二类
Ranking1
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77917
Collection高温气体动力学国家重点实验室
Affiliation1.North China Univ Sci & Technol, Coll Met & Energy, Tangshan 063210, Hebei, Peoples R China
2.North China Elect Power Univ, Sch Energy Power & Mech Engn, Beijing 102206, Peoples R China
3.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang ZB,Wang C,Kang RN,et al. Deoxygenation of Chinese long-flame coal in low-temperature pyrolysis[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2018,131(3):3025-3033.
APA Wang ZB,Wang C,Kang RN,宾峰,&魏小林.(2018).Deoxygenation of Chinese long-flame coal in low-temperature pyrolysis.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,131(3),3025-3033.
MLA Wang ZB,et al."Deoxygenation of Chinese long-flame coal in low-temperature pyrolysis".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 131.3(2018):3025-3033.
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