Mineral oils: processes and products – Chemical conversion of hydrocarbons – Hydrogenation
Reexamination Certificate
2007-12-25
2007-12-25
Caldarola, Glenn (Department: 1764)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Hydrogenation
C208S079000, C208S111050, C208S112000, C208S307000, C252S576000, C260S66500B, C260S66500B, C260S66500B, C260S66500B, C260S66500B, C260S66500B, C260S66500B, C260S66500B, C260S66500B, C518S703000, C562S093000, C585S317000, C585S319000, C585S323000, C585S448000, C585S455000, C585S733000, C585S740000
Reexamination Certificate
active
10427508
ABSTRACT:
A method of preparing high linear paraffin or high end-chain monomethyl content products is accomplished by converting synthesis gas in a Fischer-Tropsch reaction to hydrocarbon products. These may be hydrotreated to provide an n-paraffin content of greater than 50% by weight, with substantially all branched paraffins being monomethyl end-chain branched paraffins. At least one non-linear paraffin isomer, which may be a monomethyl paraffin isomer, may be separated from the hydrocarbon products through distillation to provide an n-paraffin product having an n-paraffin content percentage by weight of the n-paraffin product that is greater than the initial n-paraffin content.
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Baker & McKenzie LLP
Caldarola Glenn
Singh Prem C.
Syntroleum Corporation
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