期刊
FUEL
卷 128, 期 -, 页码 302-313出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2014.03.005
关键词
Atmospheric solids analysis probe; Coal-related model compounds; Coal derivates; Bridged bonds; Ionization pathway
资金
- National Basic Research Program of China [2011CB201302]
- National Natural Science Foundation of China for Innovative Research Group
- National Natural Science Foundation of China [20936007, 50974121, 51074153, 21276268, 21206187]
- Strategic Chinese-Japanese Joint Research Program [2013DFG60060]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Fundamental Research Fund for the Doctoral Program of Higher Education [20120095110006]
A series of coal-related model compounds (CRMCs) were analyzed with an atmospheric solids analysis probe/time of flight-mass spectrometer (ASAP/TOF-MS). Pyrene, anthracene, and phenanthrene were ionized to generate stable radical molecular cation (M+center dot) and protonated molecular cation ([M+H](+)). The ratio of [M+H](+) to M+center dot is positively related to the superdelocalizability of the condensed arenes (CAs), indicating that the CA ionizations rely on the intrinsic reactivities of the CA to a certain extent. Fragmental ions were formed via cleavage and/or rearrangement of [M+H](+)/M+center dot from bridged bond-containing CRMCs during ASAP/TOF-MS analysis. Their formation is related to drying gas temperature and the stabilities of fragmental species. Using ASAP/TOF-MS, a reaction mixture from di(1-naphthyl)methane hydrocracking was directly and rapidly analyzed, and as coal derivates succinic acid and polymethyl benzenepolycarboxylates were identified in the water-soluble portions from a coal and char oxidation within short time, respectively. The fact suggests that ASAP/TOF-MS could be used for real-time monitoring organic mixtures during the reactions of CRMCs and coal conversion. (C) 2014 Elsevier Ltd. All rights reserved.
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