Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural serial stages of chemical conversion
Reexamination Certificate
2005-05-10
2005-05-10
Griffin, Walter D. (Department: 1764)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Plural serial stages of chemical conversion
C208S064000, C208S133000, C208S134000, C585S470000, C585S477000, C585S510000
Reexamination Certificate
active
06890423
ABSTRACT:
The invention provides distillate fuel blend components with improved seal swell and lubricity properties obtained from Fischer Tropsch products. The blends contain a highly paraffinic distillate fuel component and distillate-boiling alkylcycloparaffins and/or distillate-boiling alkylaromatics. The invention further provides processes for obtaining such blends using the products of Fischer Tropsch processes. Finally, the invention provides methods for improving seal swell and lubricity properties for distillate fuels.
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Burne, Doane, Swecker & Mathis, L.L.P.
Chevron U.S.A. Inc.
Griffin Walter D.
Nguyen Tam M.
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