Visbreaking of Safaniya vacuum residue in the presence of additives

Visbreaking and hydrovisbreaking of an heavy oil (Safaniya VR) are optimized in term of conversion into light fractions (500 +) using additives. H-donor diluents inhibit coke formation and reduce conversion. Addition of a small amount of thiol or disulphide allowed the transformation of the heavy oi...

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Bibliographic Details
Published in:Fuel (Guildford) 1989-03, Vol.68 (3), p.318-322
Main Authors: Thomas, Michel, Fixari, Bernard, Le Perchec, Pierre, Princic, Yves, Lena, Louis
Format: Article
Language:English
Subjects:
Applied sciences
Energy
Exact sciences and technology
Fuel processing. Carbochemistry and petrochemistry
Fuels
heavy oils
Liquid petroleum product processing
organosulphur compounds
residuum
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Summary:Visbreaking and hydrovisbreaking of an heavy oil (Safaniya VR) are optimized in term of conversion into light fractions (500 +) using additives. H-donor diluents inhibit coke formation and reduce conversion. Addition of a small amount of thiol or disulphide allowed the transformation of the heavy oil at low temperature. Under more severe conditions, the association of H-donor diluents and sulphide additives gives high conversion yields (⩾50%) with moderate gas and coke production. This paper attempts to explain the synergism observed.
ISSN:0016-2361
1873-7153
DOI:10.1016/0016-2361(89)90095-1