A hydroprocessing catalyst composition that comprises a shaped support that is formed from a mixture of inorganic oxide powder and catalyst fines and wherein the shaped support has incorporated therein at least one metal component, a chelating agent and a polar additive. The hydroprocessing catalyst composition is prepared by incorporating into the shaped support a metal component, a chelating agent and a polar additive. The hydroprocessing catalyst composition has particular application in the catalytic hydroprocessing of petroleum derived feedstocks.

A hydroprocessing catalyst composition that comprises a shaped support that is formed from a mixture of inorganic oxide powder and catalyst fines and wherein the shaped support has incorporated therein at least one metal component, a chelating agent and a polar additive. The hydroprocessing catalyst composition is prepared by incorporating into the shaped support a metal component, a chelating agent and a polar additive. The hydroprocessing catalyst composition has particular application in the catalytic hydroprocessing of petroleum derived feedstocks.

Methods for manufacturing catalyst particles comprising one or more active metal components are provided. The particles are a composite of a granulating agent or binder material such as an inorganic oxide, and an ultra-stable Y (hereafter USY) zeolite in which some of the aluminum atoms in the framework are substituted with zirconium atoms and/or titanium atoms and/or hafnium atoms. The one or more active phase components are incorporated prior to mixing the binder with the post-framework modified USY zeolite, extruding the resulting composite mixture, and forming the catalyst particles. The one or more active phase components are incorporated in the post-framework modified USY zeolite prior to forming the catalyst particles.

A process for producing C.sub.6 to C.sub.8 aromatics and optionally light gas olefins from crude oil and/or pyrolysis oil is disclosed. The process can include hydroprocessing a first stream containing hydrocarbons from the crude oil and/or pyrolysis oil to obtain a second stream containing saturated hydrocarbons having boiling point less than 350? C., separating the second stream to obtain a third stream containing hydrocarbons having boiling point less than 70? C., a fourth stream containing hydrocarbons having boiling point 70? C. to 140? C., and a fifth stream containing hydrocarbons having boiling point greater than 140? C., recycling at least a portion of the fifth stream to the hydroprocessing step, reforming the fourth stream to obtain a sixth stream containing C.sub.6 to C.sub.8 aromatics, and optionally cracking the third stream to obtain light gas olefins.

A process for producing C.sub.6 to C.sub.8 aromatics and optionally light gas olefins from crude oil and/or pyrolysis oil is disclosed. The process can include hydroprocessing a first stream containing hydrocarbons from the crude oil and/or pyrolysis oil to obtain a second stream containing saturated hydrocarbons having boiling point less than 350? C., separating the second stream to obtain a third stream containing hydrocarbons having boiling point less than 70? C., a fourth stream containing hydrocarbons having boiling point 70? C. to 140? C., and a fifth stream containing hydrocarbons having boiling point greater than 140? C., recycling at least a portion of the fifth stream to the hydroprocessing step, reforming the fourth stream to obtain a sixth stream containing C.sub.6 to C.sub.8 aromatics, and optionally cracking the third stream to obtain light gas olefins.

A hydroprocessing catalyst has been developed. The catalyst is formed from a unique transition metal molybdotungsten oxy-hydroxide material. The hydroprocessing using the transition metal molybdotungsten oxy-hydroxide material-based catalyst may include hydrodenitrification, hydrodesulfurization, hydrodemetallation, hydrodesilication, hydrodearomatization, hydroisomerization, hydrotreating, hydrofining, and hydrocracking.

A hydroprocessing catalyst has been developed. The catalyst is formed from a unique transition metal molybdotungsten oxy-hydroxide material. The hydroprocessing using the transition metal molybdotungsten oxy-hydroxide material-based catalyst may include hydrodenitrification, hydrodesulfurization, hydrodemetallation, hydrodesilication, hydrodearomatization, hydroisomerization, hydrotreating, hydrofining, and hydrocracking.

Methods, catalysts, and corresponding catalyst precursors are provided for performing dewaxing of diesel or distillate boiling range fractions. The dewaxing methods, catalysts, and/or catalyst precursors can allow for production of diesel boiling range fuels with improved cold flow properties at desirable yields. The catalysts and/or catalyst precursors can correspond to supported base metal catalysts and/or catalyst precursors that include at least two Group 8-10 base metals supported on the catalyst, such as a catalyst/catalyst precursor including both Ni and Co as supported metals along with a Group 6 metal (i.e., Mo and/or W). The support can correspond to a support including a zeolitic framework structure. The catalyst precursors can be formed, for example, by impregnating a support including a zeolitic framework structure with an impregnation solution that also includes a dispersion agent.

Novel catalysts comprising nickel oxide nanoparticles supported on alumina nanoparticles, methods of their manufacture, heavy oil compositions contacted by these nanocatalysts and methods of their use are disclosed. The novel nanocatalysts are useful, inter alia, in the upgrading of heavy oil fractions or as aids in oil recovery from well reservoirs or downstream processing.

Novel catalysts comprising nickel oxide nanoparticles supported on alumina nanoparticles, methods of their manufacture, heavy oil compositions contacted by these nanocatalysts and methods of their use are disclosed. The novel nanocatalysts are useful, inter alia, in the upgrading of heavy oil fractions or as aids in oil recovery from well reservoirs or downstream processing.