Details

Autor(en) / Beteiligte

• Matsushita, Koichi
• Marafi, Abdulazim
• Hauser, Andre
• Stanislaus, Anthony

Titel

Relation between relative solubility of asphaltenes in the product oil and coke deposition in residue hydroprocessing

Ist Teil von

• Fuel (Guildford), 2004-08, Vol.83 (11), p.1669-1674

Ort / Verlag

Oxford: Elsevier Ltd

Erscheinungsjahr

2004

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Coke deposition on an industrial Mo/Al 2O 3 hydrodemetallization catalyst and a Ni–Mo/Al 2O 3 hydrodesulfurization catalyst was studied as a function of operating temperature during hydrotreating of Kuwait atmospheric residue. The primary objective of the study was to examine the nature of initial coke deposits and to examine the relation between solubility of asphaltenes in the product oil and coke deposition in residue hydroprocessing. The quality of coke on catalysts (hydrogen to carbon molar ratio) decreased with the quality of asphaltenes in terms of its aromatic character in the product oil, indicating that the coke property related to the asphaltenes property. A new index, the relative solubility index, was defined in this work. Quality and quantity of coke on the spent catalysts were found to be affected by the relative solubility index.