| 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)
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| Source Publication | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
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| 2018-03-01 | |
| Volume | 131Issue:3Pages:3025-3033 |
| ISSN | 1388-6150 |
| Abstract | Long-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. |
| Keyword | Coal Low-temperature pyrolysis Oxygen migration Deoxygenation |
| DOI | 10.1007/s10973-017-6753-y |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000425965400089 |
| WOS Keyword | LOW-RANK COAL ; TG-FTIR ; FUNCTIONAL-GROUPS ; ORGANIC OXYGEN ; BIOMASS ; EVOLUTION ; KINETICS ; COMBUSTION ; OXIDATION ; CHARS |
| WOS Research Area | Thermodynamics ; Chemistry, Analytical ; Chemistry, Physical |
| WOS Subject | Thermodynamics ; Chemistry |
| Funding Organization | National Key RD Program [2016YFB0601501] |
| Classification | 二类 |
| Ranking | 1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/77917 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.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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| IrJ2018305.pdf（851KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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