High octane gasoline and process for making same

摘要

A process for converting light paraffins to a high octane gasoline composition is disclosed. The process involves: (1) oxidation of iso-paraffins to alkyl hydroperoxides and alcohol; (2) conversion of the alkyl hydroperoxides and alcohol to dialkyl peroxides; and (3) radical coupling of iso-paraffins using the dialkyl peroxides as radical initiators, thereby forming gasoline-range molecules. Fractionation of the gasoline-range molecules can then be used to isolate high octane gasoline fractions having a road octane number [(RON+MON)/2] greater than 110.

主权项

1. A process for the conversion of iso-paraffins to gasoline-range molecules, comprising:
(a) oxidizing a first feed stream comprising one or more iso-paraffins to form alkyl hydroperoxides and alcohol; (b) catalytically converting the alkyl hydroperoxides and alcohols to dialkyl peroxides; (c) providing a second feed stream comprising iso-paraffins to couple iso-paraffins with other iso-paraffins using the dialkyl peroxides as a radical initiator to create gasoline-range molecules including 2,2,3,3-tetramethylbutane; (d) fractionating the gasoline-range molecules to isolate a desired gasoline fraction having a road octane number [RON+MON)/2)] greater than about 110.