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US 9,828,559 B2Granted
Fuel additives, fuels, methods of making and using same
AssigneeKraton Chemical, LLC
InventorsLloyd A. Nelson, Gary Reed, Gregory Achatz
Life of this patent
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Abstract
A method of producing a low sulfur tall oil fatty acid by first esterifying the tall oil fatty acid, followed by distillation of the tall oil fatty acid ester, followed by saponification and acidulation to provide a low sulfur tall oil fatty acid. A fuel additive comprising tall oil fatty acid and a sulfur compound, wherein the sulfur compound comprises from about 0.1 to about 20 ppm of the additive. A fuel comprises a hydrocarbon fuel component and the fuel additive.
Claims11
A method of processing tall oil fatty acid stream comprising a first level of sulfur, the method comprising:
- (A) esterifying the tall oil fatty acid stream with an alcohol to produce a tall oil fatty acid ester stream with a second level of sulfur less than the first level of sulfur;
- (B) distilling the tall oil fatty acid ester stream to recover a distillate stream having a third level of sulfur less than the second level of sulfur;
- and,
- (C) saponifying and acidizing the distillate stream to provide a final tall oil fatty acid stream with a final level of sulfur less than the second level of sulfur.
1 more element
Dependencies are inferred from the claim text.