Patent · US Expired

Process for the selective removal of nitrogen-containing compounds from hydrocarbon blends

US5675043A · kind A · utility

9Cited by

4References

17Claims

0Family size

Inventors

Christopher P. Eppig · Cambridge, US
E. T. Robinson · Mentor, US
Paul Greenough · Beaconsfield, GB

Key dates

Filing date	Nov 21, 1995
Grant date	Oct 7, 1997
Priority date	—
Expiry date	Nov 21, 2015

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10G21/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A process for the removal of nitrogen-containing compounds from a hydrocarbon blend using a solvent with a liquid-phase density at 25.degree. C. not less than 0.90 g/cm.sup.3, and a Hansen polar solubility parameter .delta..sub.P, and a Hansen hydrogen bonding parameter .delta..sub.H, such that at 25.degree. C. EQU 9.0(Cal/cm.sup.3).sup.1/2 <(.delta..sub.P +.delta..sub.H)<28.0(Cal/cm.sup.3).sup.1/2. The process is useful for purifying feedstocks to catalytic conversion processes, particularly etherification processes used in the production of ether-rich additives for gasoline.

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