Patent · US Expired

Process and an apparatus for preparation of petroleum hydrocarbon solvent with improved color stability from nitrogen rich crude oil

US6805790B2 · kind B2 · utility

7Cited by

2References

22Claims

0Family size

Assignee

Indian Oil Corporation Limited · IN

Inventors

Anurag Gupta · Clifton Park, US
Suresh Kumar Puri · Faridabad, IN
Muniaswamy Rajesh · Barwala, IN
Ambrish Kumar Misra · Barwala, IN
Bijendra Singh Rawat · Barwala, IN
Akhilesh Kumar Bhatnagar · Faridabad, IN

Key dates

Filing date	Mar 4, 2002
Grant date	Oct 19, 2004
Priority date	—
Expiry date	Mar 4, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10G2400/18
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.