Elemental sulfur as an effective promoter for the catalytic hydrocracking of Arabian vacuum residue

✍ Scribed by Jie Chang; Noritatsu Tsubaki; Kaoru Fujimoto

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 77 KB
• Volume: 80
• Category: Article
• ISSN: 0016-2361
• DOI: 10.1016/s0016-2361(01)00035-7

✦ Synopsis

The effect of elemental sulfur on the conversion of residue for catalytic hydrocracking of Arabian heavy vacuum residue was tested using an autoclave reactor. The reaction condition was 703 K and 5.0 MPa of hydrogen partial pressure. Adding only a small amount of sulfur increased the conversion of residue from 64 to 80 wt%, as well as the yield of middle distillate from 23 to 31 wt%. This should be attributed to the free-radical initiation effect of sulfur. Sulfur promoted the decomposition of residue at the catalytic hydrocracking condition.