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US 7,459,574 B2Granted
Reducing the odor of oil components by means of adsorption with polymeric adsorbing agents
AssigneeCognis IP Management GmbH
InventorsChristiane Richard-Elsner, Wilhelm Johannisbauer, Erich Reuter, Albrecht Schwerin
Life of this patent
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Abstract
A process for reducing the odor of an oil. The oil being treated is first distilled by a carrier vapor or carrier gas distillation to form a distilled oil. The distilled oil is then contacted with a polymeric adsorbent; whereby the odor of the oil is reduced. The polymeric adsorbent is regenerated. The polymeric adsorbent can be a cross-linked polymer with an internal surface area of from 900 to 1500 m2/gram.
Claims12
A process for reducing odor of an oil component which comprises:
- (a) distilling the oil component by carrier vapor or carrier gas distillation to form a distilled oil component;
- and
- (b) contacting the distilled oil component with a polymeric adsorbent at atmospheric pressure, which adsorbent is a cross-linked polymer with an internal surface area of 900 to 1,500 m2/g, wherein the odor of the oil component is reduced.
Dependencies are inferred from the claim text.