Branched alkyl-aromatic sulfonic acid dispersants for solublizing asphaltenes in petroleum oils
AssigneeExxon Research & Engineering Co.
InventorsIrwin A. Wiehe, Ramesh Varadaraj, Torris G. Jermansen, Raymond J. Kennedy, Cornelius H. Brons
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Abstract
The present invention is an asphaltene dispersant containing an aromatic, a sulfonic acid head, and an alkyl tail containing 16 carbons or more and at least one branch of a methyl or longer alkyl. Preferably, the aromatic is a fused two ring aromatic and the tail is a two, branched alkyl tail of 30 carbons or longer.
Claims7
An asphaltene dispersant composition comprising an aromatic, a sulfonic acid head, and one or more alkyl tails including at least 16 carbons and at least one branch of an alkyl group.
A method to disperse asphaltenes in a petroleum derived oil comprising adding to said oil 10 to 1000 ppm of an alkyl aromatic sulfonic acid compound including an aromatic, a sulfonic acid head, and one or more alkyl tails including at least 16 carbons and at least one branch of an alkyl group.
Dependencies are inferred from the claim text.