Patent Number: 7,087,777

Title: Process for preparing a branched olefin, a method of using the branched olefin for making a surfactant, and a surfactant

Abstract: A process for preparing branched olefins comprising 0.5% or less quaternary aliphatic carbon atoms, which process comprises dehydrogenating an isoparaffinic composition over a suitable catalyst which isoparaffinic composition comprises paraffins having a carbon number in the range of from 7 to 35, of which paraffins at least a portion of the molecules is branched, the average number of branches per paraffin molecule being at least 0.7 and the branching comprising methyl and optionally ethyl branches, and which isoparaffinic composition may be obtained by hydrocracking and hydroisomerization of a paraffinic wax; a method of using olefins for making an anionic surfactant, a nonionic surfactant or a cationic surfactant, in particular a surfactant sulfate or sulfonate, comprising converting the branched olefins into the surfactant; and an anionic surfactant, a nonionic surfactant or a cationic surfactant which is obtainable by the method of use.

Inventors: Fenouil; Laurent Alain Michel (Twickenham, GB), Murray; Brendan Dermot (Houston, TX), Ayoub; Paul Marie (Houston, TX)

Assignee: Shell Oil Company

International Classification: C07C 303/24 (20060101)

Expiration Date: 8/08/02018