Mineral oils: processes and products – Paraffin wax; treatment or recovery – Chemical treatment
Reexamination Certificate
2003-08-29
2008-03-18
Caldarola, Glenn (Department: 1797)
Mineral oils: processes and products
Paraffin wax; treatment or recovery
Chemical treatment
C208S108000, C208S111350, C502S064000, C502S326000
Reexamination Certificate
active
07344631
ABSTRACT:
Fischer-Tropsch hydrocarbon synthesis using a noncobalt catalyst is used to produce waxy fuel and lubricant oil hydrocarbons from synthesis gas derived from natural gas. The waxy hydrocarbons are hydrodewaxed, with reduced conversion to lower boiling hydrocarbons, by contacting the waxy hydrocarbons, in the presence of hydrogen, with an unsulfided hydrodewaxing catalyst that has been reduced and then treated by contacting it with a stream containing one or more oxygenates.
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Ansell Loren Leon
Bishop Adeana Richelle
Genetti William Berlin
Johnson Jack Wayne
Page Nancy Marie
Allocca J. J.
Caldarola Glenn
ExxonMobil Research and Engineering Company
Marin M. D.
Singh Prem C.
LandOfFree
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