Analysis of some coal-related model compounds and coal derivates with atmospheric solids analysis probe mass spectrometer

作者：Wang, Yu-Gao; Wei, Xian-Yong^*; Liu, Jing; Li, Zhan-Ku; Wang, Shou-Ze; Wang, Ying-Hua; Kang, Guo-Jun; Fan, Xing; Zong, Zhi-Min

来源：Fuel, 2014, 128: 302-313.

DOI：10.1016/j.fuel.2014.03.005

• Atmospheric solids analysis probe
• Coal-related model compounds
• Coal derivates
• Bridged bonds
• Ionization pathway

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.

• 出版日期2014-7-15
• 单位中国矿业大学（北京）