No abstract

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 °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.

No abstract

No abstract

No abstract