Process for the selective removal of nitrogen-containing compounds from hydrocarbon blends
OwnerChristopher P. Eppig, E. T. Robinson +1inventors
InventorsChristopher P. Eppig, E. T. Robinson, Paul Greenough
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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. 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.
Claims17
A process for treating a hydrocarbon blend containing nitrogen-containing compounds to effect removal of a portion of said nitrogen-containing compounds therefrom, comprising:
- (a) providing a hydrocarbon blend containing nitrogen-containing compounds;
- and
- (b) contacting said hydrocarbon blend with a solvent, said solvent characterized by
- (i) a liquid-phase density at 25.degree. C. not less than 0.90 g/cm.sup.3, and
- (ii) a Hansen polar solubility parameter .delta..sub.P, and a Hansen hydrogen bonding parameter .delta..sub.H, such that at 25.degree. C.
- 9.0(Cal/cm.sup.3).sup.1/2 <(.delta..sub.P +.delta..sub.H)<28.0(Cal/cm.sup.3).sup.1/2
- to extract at least a portion of said nitrogen-containing compounds from said hydrocarbon blend to said solvent.
Dependencies are inferred from the claim text.