期刊
PETROLEUM SCIENCE
卷 17, 期 2, 页码 499-508出版社
SPRINGER
DOI: 10.1007/s12182-019-00402-3
关键词
Atmospheric residue; Cracking; Catalytic additive; Hydrocarbons; Composition
The paper presents the results of investigation of changes in the composition of hydrocarbons and sulfur-containing compounds of an atmospheric residue in the course of cracking in the presence of a tungsten carbide-nickel-chromium (WC/Ni-Cr) catalytic additive and without it. The cracking is carried out in an autoclave at 500 degrees C for 30 min. The addition of the WC/Ni-Cr additive promotes the deepening of reactions of destruction not only of resins and asphaltenes, but also high molecular weight naphthene-aromatic compounds of the atmospheric residue. It is shown that the content of low molecular weight C-9-C-17 n-alkanes and C-9-C-10 alkylbenzenes rose sharply in the products of cracking with addition of WC/Ni-Cr in comparison with those produced without the additive. Alkyl- and naphthene-substituted aromatic hydrocarbons of benzene, naphthalene, phenanthrene series, polyarenes, benzo- and dibenzothiophenes are identified.
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