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Room-temperature extraction of direct coal liquefaction residue by liquefied dimethyl ether
http://hdl.handle.net/2237/00031574
http://hdl.handle.net/2237/0003157463f5d2b3-2384-49ec-b193-e8041f90b93f
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-03-10 | |||||
タイトル | ||||||
タイトル | Room-temperature extraction of direct coal liquefaction residue by liquefied dimethyl ether | |||||
言語 | en | |||||
著者 |
Zheng, Qingxin
× Zheng, Qingxin× Zhang, Yelin× Wahyudiono× Fouquet, Thierry× Zeng, Xi× Kanda, Hideki× Goto, Motonobu |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Direct coal liquefaction residue | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Extraction | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Room temperature | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Liquefied dimethyl ether | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Polycyclic aromatic hydrocarbons | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Molecular composition | |||||
抄録 | ||||||
内容記述 | Direct coal liquefaction residue (DCLR) is the main byproduct during the direct coal liquefaction process. The efficient recovery of organic components from DCLR at low temperatures is beneficial for improving the economy and reducing energy consumption and environmental pollution. Here, DCLR was extracted using liquefied dimethyl ether (DME), acetone, and hexane as the solvents. Compared with the other two solvent Soxhlet extraction, the DME extraction process was performed at room temperature with the shortest extraction time, the lowest energy consumption, and the highest extraction yield (16.2%). Owing to the high carbon contents, low sulfur and oxygen contents, and low ash contents (<0.1%), the extracts obtained using liquefied DME and acetone naturally became the feedstock of carbon materials. Based on the results of the gas chromatography-mass spectrometry analysis, the extracts obtained using the three different solvents had similar compositions in light compounds and were abundant in polycyclic aromatic hydrocarbons with two-, three-, four-, five-, and six-membered benzene rings, indicating that all three DCLR extracts are potential raw materials for preparing high value-added carbon materials. Furthermore, the molecular composition analysis revealed that the room-temperature extraction using liquefied DME was as good as high-temperature Soxhlet extraction using acetone, considering the similarity of their compositions in high molecular weight species and the considerably higher efficiency than that of high-temperature Soxhlet extraction using hexane. Due to the low energy consumption, short extraction time, high extraction yield, and high performance of the extract, liquefied DME is an efficient and economic solvent for extracting DCLR. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
内容記述 | ||||||
内容記述 | ファイル公開:2022-02-15 | |||||
言語 | ja | |||||
内容記述タイプ | Other | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Elsevier | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.fuel.2019.116528 | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0016-2361 | |||||
書誌情報 |
en : Fuel 巻 262, p. 116528, 発行日 2020-02-15 |
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著者版フラグ | ||||||
値 | author |