Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural serial stages of chemical conversion
Reexamination Certificate
2007-05-22
2007-05-22
Nguyen, Tam (Department: 1764)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Plural serial stages of chemical conversion
C208S049000, C208S059000, C208S063000, C208S108000, C208S111350, C208S120350, C208S137000
Reexamination Certificate
active
10189759
ABSTRACT:
The invention concerns a process for producing middle distillates from an effluent produced by a Fischer-Tropsch unit, comprising optional fractionation to obtain at least one heavy fraction with an initial boiling point in the range 120-200° C., said heavy fraction or said effluent optionally being hydrotreated, then bringing it into contact with a first amorphous hydrocracking/hydroisomerization catalyst that contains at least one noble group VIII metal, the effluent obtained is distilled, then the residual fraction boiling above the middle distillates and/or a portion of the middle distillates is brought into contact with a second amorphous hydrocracking/hydroisomerization catalyst containing at least one noble group VIII metal. The invention also concerns a unit.
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Benazzi Eric
Gueret Christophe
AGIP Petroli S.p.A.
ENI S.p.A.
EniTecnolgie SpA
Institut Francais du Pe'trole
Nguyen Tam
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