Lubricity improving additive composition for low sulfur diesel fuel

US7789918B2 · kind B2 · utility

Assignee

• Indian Oil Corporation Limited · IN

Inventors

• Deepak Kumar Tuli · Faridabad, IN
• Ajay Kumar Arora · Faridabad, IN
• Shanti Prakash · Faridabad, IN
• Rajiv Ranjan · Faridabad, IN
• Krishan Kumar Swami · Faridabad, IN
• Ajay Kumar · Fairport, US
• Rakesh Sarin · Faridabad, IN
• Ram Prakash Verma · Mumbai, IN
• Niranjan Raghunath Raje · New Delhi, IN

Key dates

• Filing date: Aug 9, 2004
• Grant date: Sep 7, 2010
• Expiry date: Feb 27, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10L1/191
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a additive composition for use as lubricity improver for low sulphur diesel, comprising c) 0.1-10% by weight of ester derivative derived from cashew nut shell liquid (CNSL esters) of formula (I); f) 0.1-10% by weight of ester derivative derived from cashew nut shell liquid of formula (II); g) 50-95% by weight of free fatty acid of the formula RCOOH in which R represents an alkyl/alkenyl group with 12 to 24 carbon atoms. h) 1-30% by weight of synthetic esters derived by esterifying tri, tetra, penta hydric alcohols with carboxylic acids such as lauric, palmitic, linoleic, ricinoleic etc.