METHOD FOR REDUCING ACID IN HYDROCARBONS
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United States of America Patent
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May 28, 2015
app pub date -
Nov 26, 2014
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Nov 27, 2013
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Abstract
A method, and use of, a surfactant is provided for reducing the total acid number (TAN) of produced hydrocarbons. The method may include introducing a surfactant to produced hydrocarbons, separating the surfactant from the produced hydrocarbons, and removing the surfactant and associated acid from the hydrocarbons. The cloud point of the surfactant may be used in the separating step of the method, and removal of the precipitate from the hydrocarbons may reduce the TAN of the hydrocarbons. The separation step may include forming an aqueous or intermediate phase that comprises the surfactant and associated acid.
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