Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural serial stages of chemical conversion
Patent
1987-03-09
1988-01-19
Sneed, Helen M. S.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Plural serial stages of chemical conversion
208 59, 208 97, C10G 6510, C10G 6512
Patent
active
047203374
ABSTRACT:
A catalytic dewaxing process in which a hydrocarbon feed, usually a lubricant feed, is catalytically dewaxed in at least two catalytic dewaxing stages with an interstage separation of the light ends which are subjected to hydrogenation to saturate the olefins before the hydrotreated product is passed to the second dewaxing stage. The hydrotreated fraction may be the entire fraction below the lube boiling range with a lube feed or a lower boiling portion of it with separated higher boiling portions such as naphtha and distillate by-passing the second dewaxing step.
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Graziani Kenneth R.
Katzer James R.
Kyan Chwan P.
Caldarola Glenn
Gilman Michael G.
Keen Malcolm D.
McKillop Alexander J.
Mobil Oil Corporation
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