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Catalytic hydrogenation and heteroatom removal for isopropanol soluble organic matter of Dongming lignite
Fuel Processing Technology ( IF 7.2 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.fuproc.2020.106589
Ya-Ya Ma , Xing Fan , Wen-Long Mo , Guo-Sheng Li , Feng-Yun Ma , Xian-Yong Wei

Abstract Soluble organic matter in Dongming lignite was obtained via thermal dissolution using isopropanol as the solvent and named as DLIP. Catalytic conversion of DLIP was carried out using Co-Mo/γ-Al2O3 as the catalyst to reach hydrogenation, hydrocracking and heteroatom removal. DLIP and the corresponding catalytic products were analyzed by Fourier transform-infrared spectroscopy (FT-IR), gas chromatography/mass spectrometry (GC/MS) and Orbitrap mass spectrometry (Orbitrap MS). According to the FT-IR data, the contents of alcohols and phenols increased with reaction temperature due to the cleavage of C O bonds in macromolecules of coal. The soluble organic matter and its catalytic hydrogenation products analyzed by GC/MS were classified into 10 classes, and Orbitrap MS was used to obtain the componential distribution of heteroatom containing compounds. Moreover, weighted-mean double bond equivalent (DBE) value and weighted-mean carbon number (CN) were calculated. The decrease of weighted-mean DBE/CN after catalytic conversion demonstrated ring opening reactions and cleavage of bridge-bonds.

中文翻译:

东明褐煤异丙醇可溶性有机物催化加氢脱杂原子

摘要 以异丙醇为溶剂,经热溶解得到东明褐煤中的可溶性有机质,命名为DLIP。DLIP的催化转化以Co-Mo/γ-Al2O3为催化剂,实现加氢、加氢裂化和脱杂原子。DLIP 和相应的催化产物通过傅里叶变换红外光谱 (FT-IR)、气相色谱/质谱 (GC/MS) 和 Orbitrap 质谱 (Orbitrap MS) 进行分析。根据FT-IR数据,由于煤大分子中CO键的断裂,醇和酚的含量随着反应温度的升高而增加。GC/MS 分析的可溶性有机物及其催化加氢产物分为 10 类,Orbitrap MS 用于获得含杂原子化合物的组分分布。此外,计算了加权平均双键当量(DBE)值和加权平均碳数(CN)。催化转化后加权平均 DBE/CN 的减少表明开环反应和桥键断裂。
更新日期:2021-01-01
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