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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

Room-temperature extraction of direct coal liquefaction residue by liquefied dimethyl ether

http://hdl.handle.net/2237/00031574
http://hdl.handle.net/2237/00031574
63f5d2b3-2384-49ec-b193-e8041f90b93f
名前 / ファイル ライセンス アクション
JFUE-D-19-01854R2.pdf JFUE-D-19-01854R2 (1.2 MB)
Item type 学術雑誌論文 / Journal Article(1)
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

WEKO 96475

en Zheng, Qingxin

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Zhang, Yelin

× Zhang, Yelin

WEKO 96476

en Zhang, Yelin

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Wahyudiono

× Wahyudiono

WEKO 96477

en Wahyudiono

Search repository
Fouquet, Thierry

× Fouquet, Thierry

WEKO 96478

en Fouquet, Thierry

Search repository
Zeng, Xi

× Zeng, Xi

WEKO 96479

en Zeng, Xi

Search repository
Kanda, Hideki

× Kanda, Hideki

WEKO 96480

en Kanda, Hideki

Search repository
Goto, Motonobu

× Goto, Motonobu

WEKO 96481

en Goto, Motonobu

Search repository
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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