The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 19, 2004
Filed:
Mar. 04, 2002
Anurag Ateet Gupta, Haryana, IN;
Suresh Kumar Puri, Haryana, IN;
Muniaswamy Rajesh, Haryana, IN;
Ambrish Kumar Misra, Haryana, IN;
Bijendra Singh Rawat, Haryana, IN;
Akhilesh Kumar Bhatnagar, Haryana, IN;
India Oil Corporation Limited, Mumbai, IN;
Abstract
A process and an apparatus for the preparation of petroleum hydrocarbon solvent with improved color stability from crude oils having high concentration of nitrogenous compounds which comprises passing said petroleum hydrocarbon stream containing substantial amount of nitrogenous compounds over a column of molecular sieves modified clays at ambient to elevated temperature and pressure maintaining the feed in the liquid state, thereby obtaining the petroleum hydrocarbon stream with desired color stability.