A catalyst system comprising a combination of: 1) one or more catalyst compounds having at least one nitrogen linkage and at least one oxygen linkage to a transition metal; 2) a support comprising an organosilica material, which is a mesoporous organosilica material; and 3) an optional activator. Useful catalysts include ONNO-type transition metal catalysts, ONYO-Type transition metal catalysts, and/or oxadiazole transition metal catalysts. The organosilica material is a polymer of at least one monomer of Formula [z0Z2 SiCH2]3(1), where Z.sup.1 represents a hydrogen atom, a C.sub.1-C.sub.4alkyl group, or a bond to a silicon atom of another monomer and Z.sup.2 represents a hydroxyl group, a C.sub.1-C.sub.4alkoxy group, a C.sub.1-C.sub.6alkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.

A catalyst for catalytic reactors of which the outer shape is a helix with n blades, where n is greater than or equal to 1, wherein the stack void fraction percentage is between 75% and 85% and the surface area/volume ratio is greater than 1000 square meters/square meters.

This disclosure describes a method for regenerating a semi-regenerated reforming catalyst. The method comprises adjusting the reaction temperature to 250-480 C., introducing a sulfur-containing naphtha into the reforming reactor, or stopping introducing a feedstock into the reforming reactor, and introducing a sulfur-containing hydrogen into a recycle gas, until the sulfur content in the catalyst is 0.32-0.8 mass %, then the catalyst is subject to coke-burning, oxychlorination and reduction. Alternatively, the method first subjects the spent catalyst to coke-burning followed by introducing sulfate ions thereinto; and then performing oxychlorination and reduction. Disclosed is still another method for regenerating a platinum-rhenium reforming catalyst, which comprises coke-burning the spent catalyst; introducing sulfur and chlorine in the catalyst by impregnation; and then drying, calcinating and reducing.

This disclosure describes a method for regenerating a semi-regenerated reforming catalyst. The method comprises adjusting the reaction temperature to 250-480 C., introducing a sulfur-containing naphtha into the reforming reactor, or stopping introducing a feedstock into the reforming reactor, and introducing a sulfur-containing hydrogen into a recycle gas, until the sulfur content in the catalyst is 0.32-0.8 mass %, then the catalyst is subject to coke-burning, oxychlorination and reduction. Alternatively, the method first subjects the spent catalyst to coke-burning followed by introducing sulfate ions thereinto; and then performing oxychlorination and reduction. Disclosed is still another method for regenerating a platinum-rhenium reforming catalyst, which comprises coke-burning the spent catalyst; introducing sulfur and chlorine in the catalyst by impregnation; and then drying, calcinating and reducing.

A novel synthetic crystalline molecular sieve material, designated boron ITQ-21, is provided. The boron ITQ-21 can be synthesized using an N,N-diethyl-5,8-dimethyl-2-azonium bicyclo [3.2.2] nonane cation as a structure directing agent. The boron ITQ-21 may be used in organic compound conversion reactions and/or sorptive processes.

A process for preparing a catalyst is disclosed. The process generally comprises the steps of: (a) preparing a slurry comprising clay, zeolite, a sodium-free silica source, quasi-crystalline boehmite, and micro-crystalline boehmite, provided that the slurry does not comprise peptized quasi-crystalline boehmite; (b) adding a monovalent acid to the slurry; (c) adjusting the pH of the slurry to a value above about 3, and (d) shaping the slurry to form particles. This process results in attrition resistant catalysts with a good accessibility.

A process for preparing a catalyst is disclosed. The process generally comprises the steps of: (a) preparing a slurry comprising clay, zeolite, a sodium-free silica source, quasi-crystalline boehmite, and micro-crystalline boehmite, provided that the slurry does not comprise peptized quasi-crystalline boehmite; (b) adding a monovalent acid to the slurry; (c) adjusting the pH of the slurry to a value above about 3, and (d) shaping the slurry to form particles. This process results in attrition resistant catalysts with a good accessibility.

A metal loaded catalyst comprises a support and main active metal components and optional auxiliary active metal components, wherein the main active metal components are elementary substances and obtained by ionizing radiation reducing precursors of main active metal components. The catalyst can be widely used in the catalytic reactions of petrochemistry industry with high activity and selectivity. The catalyst can be used directly without being reduced preliminarily by hydrogen.

A metal loaded catalyst comprises a support and main active metal components and optional auxiliary active metal components, wherein the main active metal components are elementary substances and obtained by ionizing radiation reducing precursors of main active metal components. The catalyst can be widely used in the catalytic reactions of petrochemistry industry with high activity and selectivity. The catalyst can be used directly without being reduced preliminarily by hydrogen.

A naphtha reforming catalyst, comprising an alumina support and following components with the content calculated on the basis of the support: VIII group metal 0.1-2.0% by weight, VIIB group metal 0.1-3.0% by weight, sulfate ion 0.45-3.0% by weight, and halogen 0.5-3.0% by weight. The catalyst is used in a naphtha reforming reaction without presulfurization and has a high aromatization activity and a selectivity.