Chemistry of hydrocarbon compounds – Product blend – e.g. – composition – etc. – or blending process... – For fuel use only
Reexamination Certificate
2002-09-06
2009-10-06
Toomer, Cephia D (Department: 1797)
Chemistry of hydrocarbon compounds
Product blend, e.g., composition, etc., or blending process...
For fuel use only
C044S388000
Reexamination Certificate
active
07598426
ABSTRACT:
A diesel fuel comprising a mixture of normal paraffins and branched paraffins. The normal paraffins present in the diesel fuel is less than about 99% by weight; and the aromatic content in the diesel fuel is less than about 10% by weight. The diesel fuel has a cetane number of at least 40 and a sulfur content of less than about 100 ppm. Optionally, the diesel fuel may further include cycloparaffins, i.e., naphthenes. To increase the lubricity of the diesel fuel, a lubricity additive, such as fatty acid methyl ester, can be added to the diesel fuel.
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European Patent Office, “PCT Notification of Transmittal of the International Preliminary Examination Report,” PCT/US02/28344, Dec. 9, 2003, 10 pages.
Fang Jiafu
Gunsel Selda
Shell Oil Company
Toomer Cephia D
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