文献类型：期刊文献

英文题名：Investigations on the interaction mechanisms of hydrogen donor and non-hydrogen donor on hydrogenation behaviors of asphaltene

作者：Zhang, Yuanlin[1,2];Huang, Sheng[1,2];Lu, Zhiyan[1,2];Sun, Shuo[1,2];Chen, Junqian[1,2];Wu, Youqing[1,2];Wu, Shiyong[1,2]

机构：[1]State Key Lab Coal Liquificat, Gasificat & Utilizat High Efficiency & Low Carbon, Shanghai, Peoples R China;[2]East China Univ Sci & Technol, Minist Educ, Engn Res Ctr Resource Utilizat Carbon Containing W, Shanghai 200237, Peoples R China

年份：2024

卷号：183

外文期刊名：JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS

收录：;EI(收录号：20243617002504);WOS:【SCI-EXPANDED(收录号:WOS:001312768400001)】；

基金：This work was supported by National Key R & D Program of China (2022YFB4101300) and National Natural Science Foundation of China (22378129) .

语种：英文

外文关键词：Asphaltene; Non-hydrogen donor; Binary solvents; Hydrogen donating ability

摘要：In the manuscript, the effects of temperature, H-2/N-2 atmosphere, ratio of hydrogen donor (HD)/non-hydrogen donor (NHDs) and non-hydrogen donor (NHDs) components on product distributions and hydrogen consumption during asphaltene hydrogenation process were investigated. Besides, the structure of asphaltenes were analyzed. The results showed that increasing temperature can significantly promote the dehydrogenation of THN. The oil-water yields in binary solvents were 16.21 % - 22.54 % lower than that in pure THN (48.20 %), which may be due to the hydrogenation of NHDs components competing for active hydrogen with free radicals cracked by AS. In N-2 atmosphere, the amount of hydrogen transfer from THN was higher than that in H-2 atmosphere, and the presence of anthracene promoted the dehydrogenation of THN from 2.70 wt% in pure THN to 2.98 wt% in binary solvents, while the addition of phenanthrene and pyrene inhibited the dehydrogenation of THN. Anthracene and pyrene were susceptible to be hydrogenated to generate hydrogenated aromatics, while phenanthrene was more prone to ring-opening and isomerization reactions in N-2 atmosphere, leading to opposite trends of oil-water yield in H-2/N-2 atmospheres. The H-2/N-2 atmospheres had a modest effect on oil-water yields in THN/1-MN mixtures, but CH4 yield (4.49 %) in N-2 atmosphere were significantly higher than that (1.42 %) in H-2 atmosphere, indicating that 1-MN facilitated hydrogen transfer from THN to naphthalene and CH4. The XPS results showed that in H-2 atmosphere, C-O-C of asphaltenes was almost removed, and pyrene and 1-MN inhibited the cleavage of ether bond to some extent in N-2 atmosphere.