Mineral oils: processes and products – Chemical conversion of hydrocarbons – With preliminary treatment of feed
Reexamination Certificate
2007-07-31
2007-07-31
Caldarola, Glenn A. (Department: 1764)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With preliminary treatment of feed
C208S027000, C208S058000, C208S062000, C208S081000, C208S082000, C208S083000, C208S093000, C208S097000, C208S188000, C208S210000, C208S212000, C585S310000, C585S734000, C585S736000, C585S737000
Reexamination Certificate
active
10343006
ABSTRACT:
For producing basic oils and in particular very high quality oils, i.e. oils possessing a high viscosity index (VI), a low aromatics content, good UV stability and a low pour point, from oil cuts having an initial boiling point higher than 340° C., possibly with simultaneous production of middle distillates (in particular gasoils and kerosene) of very high quality, i.e. having a low aromatics content and a low pour point, the invention provides a flexible procedure for producing oils and middle distillates from a charge containing heteroatoms, i.e. containing more than 200 ppm by weight of nitrogen, and more than 500 ppm by weight of sulphur. The procedure comprises at least one hydrorefining stage, at least one stage of catalytic dewaxing on zeolite, and at least one hydrofinishing stage.
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English translation of FR 2 792 946.
Benazzi Eric
Billon Alain
Gueret Christophe
Marion Pierre
Caldarola Glenn A.
Institut Francais du Pe'trole
Millen White Zelano & Branigan P.C.
Singh Prem C.
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