Styrylphenol alkoxylate sulfate as a new surfactant composition for enhanced oil recovery applications
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Date
2013-02-12
Authors
Gary A. Pope
Upali P. Weerasooriya
Journal Title
Journal ISSN
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Publisher
United States Patent and Trademark Office
Abstract
A method of making a styryl phenol alkoxylate sulfate surfactant by alkoxylation of a styryl phenol using propylene oxide (PO) and/or ethylene oxide (EO) followed by a sulfation reaction. The styrylphenol alkoxylate sulfate surfactant of the present invention is made by a facile and inexpensive method. The large hydrophobe surfactants of the present invention find uses in EOR applications where it is used for solubilization and mobilization of oil optionally containing asphaltene, and for environmental cleanup. Further, the unsulfated version of the large hydrophobe styrylphenol alkoxylate surfactant of the present invention can be used as an ultra-high molecular weight non-ionic surfactant.