A process of reforming a diesel feedstock to convert diesel to a gasoline blending component may include desulfurizing and denitrogenizing the diesel feedstock to reduce the sulfur and nitrogen content; and then hydrocracking the diesel feedstock over a metal containing zeolitic catalyst to produce an isomerate fraction. The diesel feedstock may have boiling points ranging from 200 to 360° C.

The invention relates to the implementation of a multi-stage hydrocracking process comprising a hydrogenation stage located downstream of the second hydrocracking stage, said hydrogenation stage treating the effluent produced in the second hydrocracking stage, in the presence of a specific hydrogenation catalyst. In addition, the hydrogenation and second hydrocracking stages are implemented under specific operating conditions and particularly under very specific temperature conditions.

A method including subjecting an ultra-stable Y-type zeolite having a low silica-to-alumina molar ratio (SAR), such as in a range of 3 to 6, to acid treatment and heteroatom incorporation contemporaneously to give a framework-modified ultra-stable Y-type zeolite.

A method including subjecting an ultra-stable Y-type zeolite having a low silica-to-alumina molar ratio (SAR), such as in a range of 3 to 6, to acid treatment and heteroatom incorporation contemporaneously to give a framework-modified ultra-stable Y-type zeolite.

The present invention is based on the use of a two-step hydrocracking process for the production of naphtha, comprising a step of hydrogenation placed downstream of the second hydrocracking step, the hydrogenation step treating the effluent resulting from the second hydrocracking step in the presence of a specific hydrogenation catalyst. Furthermore, the hydrogenation step and the second hydrocracking step are performed under specific operating conditions and in particular under quite specific temperature conditions.

A process plant and a process for production of a hydrocarbon fraction suitable for use as jet fuel from a feedstock being a renewable feedstock or an oxygenate feedstock, including combining the feedstock with an amount of a hydrocracked intermediate product and optionally an additional liquid diluent, to form a combined feedstock, directing the combined feedstock to contact a material catalytically active in hydrodeoxygenation under hydrotreating conditions to provide a hydrodeoxygenated intermediate product, separating the hydrodeoxygenated intermediate product in at least two fractions; a vapor fraction and a liquid fraction, directing at least an amount of the liquid fraction to contact a material catalytically active in isomerization under isomerization conditions to provide an isomerized intermediate product, fractionating said isomerized intermediate product to provide at least a hydrocarbon suitable for use as jet fuel and a bottom fraction, hydrocracking the bottom fraction to provide the hydrocracked intermediate product.

A process plant and a process for production of a hydrocarbon fraction suitable for use as jet fuel from an oxygenate feedstock, which may be a feedstock being a renewable feedstock, including combining the feedstock with a diluent hydrocarbon stream to form a hydrotreatment feed stream to contact a material catalytically active in hydrotreatment under hydrotreating conditions to provide a hydrotreated intermediate product, directing at least an amount of said hydrotreated intermediate product to contact a material catalytically active in hydrocracking under hydrocracking conditions to provide a hydrocracked intermediate product, separating the hydrocracked intermediate product in a hydrocracked intermediate liquid fraction and a gaseous fraction, directing at least an amount of said hydrocracked intermediate liquid fraction to contact a material catalytically active in hydrodearomatization under hydrodearomatization conditions to provide a treated product comprising the hydrocarbon fraction suitable for use as jet fuel.

A process plant and a process for production of a hydrocarbon suitable for use as jet fuel from a feedstock being a renewable feedstock or an oxygenate feedstock, including combining the renewable feedstock with an amount of a hydrocracked intermediate product, directing it to contact a material catalytically active in hydrodeoxygenation under hydrodeoxygenation conditions to provide a hydrodeoxygenated intermediate product, fractionating the hydrodeoxygenated intermediate product in at least two fractions including a first fraction of which at least 90% boils below a defined boiling point and a second fraction of which at least 90% boils above the defined boiling point, directing at least an amount of the second fraction to contact a material catalytically active in hydrocracking under hydrocracking conditions to provide the hydrocracked intermediate product, the process being suited for efficiently converting the upper-boiling point of an oxygenate feedstock such as a renewable feedstocks to a lower boiling product.

A process plant and a process for production of a hydrocarbon suitable for use as jet fuel from a feedstock being a renewable feedstock or an oxygenate feedstock, including combining the feedstock with an amount of a liquid diluent, directing it to contact a material catalytically active in hydrodeoxygenation under hydrotreating conditions to provide a hydrodeoxygenated intermediate product, directing at least an amount of the hydrodeoxygenated intermediate product to contact a material catalytically active in hydrocracking under hydrocracking conditions providing the hydrocracked intermediate product, separating the hydrocracked intermediate product in a vapor fraction and a liquid fraction, directing at least an amount of the liquid hydrocracked product to contact a material catalytically active in isomerization under isomerization conditions to provide an isomerized intermediate product, and fractionating the isomerized intermediate product to provide at least a hydrocarbon suitable for use as jet fuel.

The present invention provides a process for upgrading a Fischer-Tropsch product by hydrocracking in the presence of a hydrocracking catalyst in a reactor, wherein the process is initiated by a series of steps (i) to (iv). The hydrocracking catalyst is (i) contacted with a hydrogen-containing stream having a feed temperature of from 360° C. to 420° C.; (ii) the feed temperature of the hydrogen-containing stream is reduced to a temperature of from 220° C. to 280° C.; (iii) the catalyst is contacted with a Fischer-Tropsch product stream having a feed temperature of from 220° C. to 280° C., which is co-fed with the hydrogen-containing stream; and (iv) the catalyst is co-fed with a Fischer-Tropsch product stream and hydrogen-containing stream having feed temperatures of from 380° C. and 400° C. for at least four days and wherein the hydrocracking catalyst is not activated by sulfiding.