Blending of economic, ether free summer gasoline
AssigneeChevron U.S.A. Inc.
InventorsScott R. Brundage, David A. Kohler
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Abstract
Provided is a novel summer gasoline composition which is substantially free of ethers, contains less than 20 ppm sulfur, and is in compliance with the California Predictive Model. The gasoline composition is suitable for use in the summer, i.e., having a Reid vapor pressure of 7.2, and more preferably 7.0 or less, but also offers the advantages of low-emissions while being substantially free of ethers. The method for blending the gasoline comprises blending streams from a refinery in a controlled manner to maintain compliance with the California Predictive Model.
Claims45
A method of blending unleaded gasolines which are substantially free of ethers, which have a Reid vapor pressure of 7.00 or less, which method comprises
- (a) blending some or all gasoline component streams from an oil refinery and keeping the blend substantially free of ether compounds, and has a sulfur content of less than 10 ppmw, and
- (b) controlling the blending of the streams such that the blended unleaded gasoline is in compliance with the California Predictive Model.
An unleaded gasoline composition which is substantially free of oxygenates, is in compliance with the California Code of Regulations, and has a sulfur content of less than 10 ppmw.
An unleaded gasoline composition which is substantially free of oxygenates, is in compliance with California Phase 2 reformulated gasoline regulations, and has a sulfur content of less than 10 ppmw.
Dependencies are inferred from the claim text.