Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural parallel stages of chemical conversion
Reexamination Certificate
2007-01-02
2007-01-02
Nguyen, Tam M. (Department: 1764)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Plural parallel stages of chemical conversion
C208S080000, C208S089000, C208S950000, C585S652000
Reexamination Certificate
active
10189793
ABSTRACT:
A system comprising: a paraffin feed produced by the Fischer-Tropsch process is fractionable into at least three fractions: an intermediate fraction boiling between T1and T2,T1being in the range 120–200° C. and T2being more than 300° C. and less than 410° C., a light fraction boiling below it and a heavy fraction boiling above it; at least a portion of the intermediate fraction is hydrotreated then at least a portion thereof is passed over an amorphous hydroisomerisation/hydrocracking catalyst; the heavy fraction is passed over an amorphous hydroisomerisation/hydrocracking catalyst with a conversion of 370° C.+ products into 370° C.− products of more than 80% by weight; the hydrocracked/hydroisomerised fractions are distilled to obtain middle distillates (kerosine, gas oil).
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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 M.
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