Mineral oils: processes and products – Processing of 'fischer-tropsch' crude
Reexamination Certificate
2007-10-23
2007-10-23
Caldarola, Glenn (Department: 1764)
Mineral oils: processes and products
Processing of 'fischer-tropsch' crude
C208S058000, C208S018000, C208S096000
Reexamination Certificate
active
10471053
ABSTRACT:
A process to prepare a lubricating base oil and a gas oil by(a) hydrocracking/hydroisomerizing a Fischer-Tropsch product, wherein weight ratio of compounds having at least 60 or more carbon atoms and compounds having at least 30 carbon atoms in the Fischer-Tropsch product is at least 0.2, and, wherein at least 30 wt % of compounds in the Fischer-Tropsch product have at least 30 carbon atoms;(b) separating the product of step (a) into one or more gas oil fractions, a base oil precursor fraction and a higher boiling fraction; and(c) performing a pour point reducing step to the base oil precursor fraction obtained in step (b).
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Caldarola Glenn
Douglas John C.
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