کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6630149 | 1424930 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In-source collision activated dissociation for coal/biomass-based model compounds and structural characterization of a coal extract
ترجمه فارسی عنوان
جداسازی فعال شده در منبع در ترکیبات مدل مبتنی بر زغال سنگ / بیوماس و خصوصیات ساختاری عصاره زغال سنگ
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کلمات کلیدی
زغال سنگ، ترکیب مدل، زیست توده، طیف سنجی جرمی، اختلاط فعال در برخورد با منبع،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
In-source collision activated dissociation (ISCAD) is an effective method to obtain molecular structure of coal and biomass and provide basic knowledge for coal/biomass conversion. Twenty two coal/biomass-based model compounds and one coal extract were studied via ISCAD to understand the relationship between collision energy and molecular structure and the application of ISCAD in the characterization of coal. Model compounds showed different fragmentation patterns with the increase of collision energy and the detailed fragmentation pathways in context of collision energies were proposed. According to the ISCAD results of coal extract, the weighted mean molecular weight (MW) and weighted mean double-bond equivalent (DBE) values of ionized coal molecules decreased over collision energy of 80â¯eV. The decrease of weighted mean MW and DBE were mainly caused by the cleavage of alkyl chains, bridged bonds, and minor cracking of small aromatic cores from precursor ions upon fragmentation. Therefore, the optimal ISCAD collision energy for the investigation of aromatic core structures of the coal extract should be around 80â¯eV.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 234, 15 December 2018, Pages 1033-1043
Journal: Fuel - Volume 234, 15 December 2018, Pages 1033-1043
نویسندگان
Fei Wang, Xueming Dong, Xing Fan, Yun-Peng Zhao, Guo-Sheng Li, Chu-Fan Wang, Xian-Yong Wei, Feng-Yun Ma, Mei Zhong,