Coprocessing using H2S as a promoter

✍ Scribed by P.M. Rahimi; S.A. Fouda; J.F. Kelly

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 537 KB
• Volume: 66
• Category: Article
• ISSN: 0016-2361
• DOI: 10.1016/0016-2361(87)90058-5

✦ Synopsis

Coprocessing of Forestburgh subbituminous coal with Cold Lake vacuum bottoms in the presence of H,S as a promoter using a continuous-flow bench scale pilot plant resulted in high coal and pitch conversions and distillate yields. On the basis of the results, it is proposed that H,S acts as a hydrogen donor under coprocessing conditions. The hydrogen transfer from H,S to radicals that are formed from coal or bitumen can take place directly or via coal-derived liquids. The activity of H,S under coprocessing conditions is also compared with the activity of pulverized coal impregnated with iron sulphate.