A hydrocracking catalyst is provided comprising:

a. from 0.5 to 10 wt % zeolite beta having an OD acidity of 20 to 400 nmol/g and an average domain size from 800 to 1500 nm.sup.2;

b. from 0 to 5 wt % zeolite USY having an ASDI between 0.05 and 0.12; wherein a wt % of the zeolite beta is greater than the wt % of the zeolite USY;

c. a catalyst support; and

d. at least one metal selected from the group consisting of elements from Group 6 and Groups 8 through 10 of the Periodic Table. A process for hydrocracking using the hydrocracking catalyst to produce middle distillates is provided. A method for making the hydrocracking catalyst is also provided.

A hydrocracking catalyst is provided comprising: a zeolite beta having an OD acidity of 20 to 50 mol/g and an average crystal size from 300 to 800 nanometers; a zeolite USY; wherein a wt % of the zeolite beta is less than the wt % of the zeolite USY; a support comprising an amorphous silica aluminate and a second support material; and at least one metal selected from the group consisting of elements from Group 6 and Groups 8 through 10 of the Periodic Table. A process for hydrocracking a hydrocarbonaceous feedstock is provided, comprising: contacting the hydrocarbonaceous feedstock with the hydrocracking catalyst under hydrocracking conditions to produce a hydrocracked effluent that comprises middle distillates. A method for making the hydrocracking catalyst is also provided.

The present invention is directed to an improved hydrocracking catalyst containing an amorphous silica-alumina (ASA) base and alumina support. The ASA base is characterized as having a high nanopore volume and low particle density. The alumina support is characterized as having a high nanopore volume. Hydrocracking catalysts employing the combination high nanopore volume ASA base and alumina support exhibit improved hydrogen efficiency, and greater product yield and quality, as compared to hydrocracking catalysts containing conventional ASA base and alumina components.

A new chromium-containing fluorination catalyst is described. The catalyst comprises an amount of zinc that promotes activity. The zinc is contained in aggregates which have a size across their largest dimension of up to 1 micron. The aggregates are distributed throughout at least the surface region of the catalyst and greater than 40 weight % of the aggregates contain a concentration of zinc that is within 1 weight % of the modal concentration of zinc in those aggregates.

Fluidizable catalysts for oxygen-free oxidative dehydrogenation of alkanes to corresponding olefins. The catalysts contain 10-20% (by weight per total catalyst weight) of one or more vanadium oxides as the catalytic material, which are mounted upon an alumina support that is modified with zirconia at alumina/zirconia ratios of 5:1 up to 1:2. Various methods of preparing and characterizing the fluidizable catalysts are also provided.

According to one embodiment described in this disclosure, a process for producing propylene may comprise at least partially metathesizing a first stream comprising at least about 10 wt. % butene to form a metathesis-reaction product, at least partially cracking the metathesis-reaction product to form a cracking-reaction product comprising propylene, and at least partially separating propylene from the cracking-reaction product to form a product stream comprising at least about 80 wt. % propylene.

Embodiments of a metathesis process for producing propylene comprise providing a metathesis catalyst comprising an amorphous mesoporous silica foam impregnated with metal oxides, where the metathesis catalyst has a pore size distribution of at least 3 nm to 40 nm and a total pore volume of at least 0.700 cm.sup.3/g. The process further involves producing a product stream comprising propylene by contacting a feed stream comprising butene with the metathesis catalyst.

A composite catalyst, wherein the composite catalyst includes a support including an aluminosilicate wherein the aluminosilicate comprises an amorphous aluminosilicate, and a first particle disposed on the support, the first particle including a metal, a metal oxide, or a combination thereof, wherein the composite catalyst is effective to remove a first compound from an unpurified air stream including the first compound.

A composite catalyst, wherein the composite catalyst includes a support including an aluminosilicate wherein the aluminosilicate comprises an amorphous aluminosilicate, and a first particle disposed on the support, the first particle including a metal, a metal oxide, or a combination thereof, wherein the composite catalyst is effective to remove a first compound from an unpurified air stream including the first compound.

Disclosed herein are systems for electron catalyzed molecular recognition and methods of making and using the same. The system comprises an electron source for providing an electron, a redox-active substrate capable of accepting the electron from the electron source, and a catalytic intermediate formed noncovalently from the substrate and a second molecule, wherein the energy barrier for forming the catalytic intermediate is decreased by the redox-active substrate accepting the electron from the electron source.