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US 8,519,204 B2Granted
Stabilization methods for microbial-derived olefins
AssigneeAmyris, Inc.
InventorsNicholas L. Ohler, Roberto Vazquez
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Abstract
Processes and systems for stabilization and subsequent hydrogenation of an immiscible olefin are described. Methods of stabilizing a microbial-derived olefin composition are also described.
Claims36
A method of stabilizing a microbial-derived olefin composition comprising:
- a) separating immiscible olefin from a mixture comprising an aqueous solution, microbial cells and immiscible olefin thereby forming a crude olefin composition;
- b) purifying the crude olefin composition thereby forming a purified olefin composition;
- and
- c) adding a phenolic antioxidant to the purified olefin composition to form a stabilized purified microbial-derived olefin composition, wherein the phenolic antioxidant is a phenol derivative containing an unfused phenyl ring with one or more hydroxyl substituents, and is present in an amount that is at least 0.0001% by weight of stabilized purified microbial-derived olefin composition.
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Dependencies are inferred from the claim text.