Catalytic hydroconversion of dagang vacuum residue

The petroleum ether-insoluble fraction of Dagang vacuum residue (DVR-PEIF) was subject to catalytic hydrogenation in the presence of activated carbon (AC) under initial hydrogen pressure of 5 MPa at 300 °C. Most of compounds detected with GC/MS in the PE-soluble fraction of products from DVR-PEIF are aliphatic species, including normal chain alkanes, branched alkanes and alkenes, hopanes and terpanes. Small amounts of arenes and heteroatom-containing compounds were also identified. The results show that activated carbon catalyzed the catalytic cracking of DVR-PEIF.