Abstract:
L'invention concerne un procédé de production de distillats moyens à partir d'une charge paraffinique produite par synthèse Fischer-Tropsch, mettant en oeuvre un catalyseur d'hydrocraquage/hydroisomérisation comprenant au moins un métal hydro-déshydrogénant choisi dans le groupe formé par les métaux du groupe VIB et du groupe VIII de la classification périodique et un support formé d'au moins un matériau amorphe comprenant du silicium à porosité hiérarchisée et organisée, constitué d'au moins deux particules sphériques élémentaires, chacune desdites particules comprenant une matrice à base d'oxyde de silicium, mésostructurée, ayant un diamètre de mésopores compris entre 1,5 et 30 nm et présentant des parois amorphes et microporeuses d'épaisseur comprise entre 1,5 et 50 nm, lesdites particules sphériques élémentaires ayant un diamètre maximal de 200 microns.
Abstract:
L'invention concerne un procédé de production de distillats moyens à partir d'une charge paraffinique produite par synthèse Fischer-Tropsch, mettant en œuvre un catalyseur d'hydrocraquage/hydroisomérisation comprenant : au moins un support formé d'au moins un matériau cristallisé comprenant du silicium à porosité hiérarchisée et organisée et constitué d'au moins deux particules sphériques élémentaires, chacune desdites particules sphériques comprenant une matrice à base d'oxyde de silicium, mésotructurée, ayant un diamètre de mésopores compris entre 1,5 et 30 nm et présentant des parois microporeuses et cristallisées d'épaisseur comprise entre 1,5 et 60 nm, lesdites particules sphériques élémentaires ayant un diamètre maximal de 200 μm; au moins une phase active contenant au moins un élément hydro-déshydrogénant du groupe VIB et /ou du groupe VIII de la classification périodique.
Abstract:
The invention describes a method of producing middle distillates from a paraffinic feedstock produced by Fischer-Tropsch synthesis, comprising: separation of a heavy fraction having an initial boiling point between 120 and 200°C; hydroisomerization of at least part of said heavy fraction in the presence of a first hydroisomerization catalyst comprising at least one metal of group VIII and/or at least one metal of group VIB and at least one molecular sieve; hydrocracking of at least part of the hydroisomerized effluent in the presence of a second hydrocracking catalyst comprising at least one metal of group VIII and/or at least one metal of group VIB and a silica-alumina support or a zeolite Y-based support; and distillation of the final effluent in order to obtain middle distillates.
Abstract:
A method of hydrocracking a wax, characterized in that in a fixed bed reactor provided with a catalytic reaction section having, disposed in sequence, a first catalyst layer containing a first amorphous solid acid, a second catalyst layer containing zeolite and a third catalyst layer containing a second amorphous solid acid, in the presence of hydrogen, a wax is caused to flow from the first catalyst layer toward the third catalyst layer of the catalytic reaction section.
Abstract:
Oil composition comprising a base oil component having viscosity index of greater than 120, a sulphur content of below 0.03 wt%, and a saturates content of greater than 98 wt% and an additive, wherein the base oil component has a paraffin content of greater than 80 wt% and comprises a series of iso-paraffins having n, n+1, n+2, n+3 and n+4 carbon atoms and wherein n is between 20 and 40 and wherein the oil composition comprises more than 0.2 wt% of a sterically hindered phenolic type antioxidant.
Abstract:
A process for the conversion of a feedstock (1) containing light cycle oil and vacuum gas oil to produce naphtha boiling range hydrocarbons and a higher boiling range hydrocarbonaceous stream having a reduced concentration of sulfur.
Abstract:
An improved hydrogenation process for lube oil boiling range feedstreams utilizing a catalyst comprising at least one Group VIII noble metal selected from Pt, Pd, and mixtures thereof having an average pore diameter of 15 to less than 40Å.
Abstract:
Process to prepare simultaneously two or more base oil grades and middle distillates from a de-asphalted oil or a vacuum distillate feed or their mixtures by performing the following steps: (a) hydrocracking the feed, thereby obtaining an effluent; (b) distillation of the effluent as obtained in step (a) into one or more middle distillates and a residue boiling substantially above 340 ° C; (c) separating, by means of a further distillation step said residue into a light base oil precursor fraction and a heavy base oil precursor fraction; (d) reducing the pour point of each separate base oil precursor-fraction iri"two simultaneously and parallel operated catalytic dewaxing reactors obtaining a first and second dewaxed oil; (e) hydrotreating the first dewaxed oil as obtained when dewaxing the heavy base oil precursor fraction in step (d); (f) isolating from the second dewaxed oil from the light base oil precursor fraction from step (d) and the hydrotreated oil from step (e) two or more base oil grades.