The invention relates to an oxygen carrier solid, its preparation and its use in a method of combustion of a hydrocarbon feedstock by active mass chemical-looping oxidation-reduction, i.e. chemical-looping combustion (CLC). The solid, which is hi the form of particles, comprises an oxidation-reduction active mass composed of metal oxide(s) dispersed in a ceramic matrix comprising at least at least one feldspar or feldspathoid with a melting point higher than 1500 C., such as celsian, and has, initially, a specific macroporous texture. The oxygen carrier solid is prepared from a precursor of the ceramic matrix, obtained from a macroporous zeolitic material with zeolite crystals of a specific size, and a precursor of the oxidation-reduction active mass.

Provided is a hydrocracking process with a recycle loop for converting a petroleum feed to lower boiling products, which process comprises reacting a stream over a non-zeolite noble metal catalyst at a temperature of about 650? F. (343? C.) or less in a reactor positioned in the recycle loop of the hydrocracking reactor.

The present invention relates to a Si/Al zeolite catalyst with cubical morphology, having pore diameter in the range of 0.5 to 0.6 ?m, pore volume in the range of 0.2 to 0.3 cc/g, surface area in the range of 500 to 700 m.sup.2/g, and SiO2/Al2O3 ratio in the range of 30 to 200. The present invention also relates to a process for its preparation and its application in one step, one pot synthesis of ether.

A metal porous body has a skeleton of a three-dimensional network structure, an outer layer portion of the skeleton having a second pore smaller in size than a first pore formed by the skeleton, wherein the outer layer portion is a metal layer, and a water vapor reforming catalyst is supported in the outer layer portion.

A platinum group metal ion-supported catalyst in which platinum group metal ions or platinum group metal complex ions are supported on a non-particulate organic porous ion exchanger, wherein the non-particulate organic porous ion exchanger is formed of a continuous framework phase and a continuous pore phase; has a thickness of a continuous framework of 1 to 100 m, an average diameter of continuous pores of 1 to 1000 m, and a total pore volume of 0.5 to 50 ml/g; has an ion exchange capacity per weight in a dry state of 1 to 9 mg equivalent/g; and has ion exchange groups wherein the ion exchange groups are uniformly distributed in the organic porous ion exchanger.

A supported catalyst for hydroprocessing, hydrotreating or hydrocracking hydrocarbon feedstocks, the supported catalyst comprising at least one metal from Group 6 and at least one metal from Groups 8, 9, or 10 of the Periodic Table of the Elements, and optionally comprising phosphorous. The Group 6 metal comprises about 30 to about 45 wt. % and the total of Group 6 and Group 8, 9, or 10 or mixtures thereof metal components comprise about 35 to about 55 wt. %, calculated as oxides and based on the total weight of the catalyst composition. The metals, and phosphorous when present, are carried on and/or within a porous inorganic oxide carrier or support, the support prior to incorporation of the metals and phosphorus, having a total pore volume (TPV) of about 0.8 cc/g to about 1.5 cc/g and comprising a defined pore size distribution and wherein the supported catalyst comprises a defined pore size distribution.

A method for producing the silica carrier which includes kneading fumed silica obtained by a combustion method, silica gel obtained by a gel method, and colloidal silica obtained by a sol-gel method or a water glass method, molding the resulting kneaded product, and calcining the resulting molded body. The silica carrier has, in the measurement of pore size distribution, mesopores with a pore size of 2 to 50 nm and macropores with a pore size of more than 50 nm and 1,000 nm or less.

Provided is a formed body containing at least one carbonate compound (A1) selected from Na.sub.2CO.sub.3 or K.sub.2CO.sub.3, the formed body having a volume of pores with a pore diameter of from 0.05 m to 10 m of from 0.10 mL/g to 0.30 mL/g and a crushing strength of from 1.8 kgf to 10.0 kgf.

A method of treating water to oxidize organic contaminants comprises heat transfer system includes heating liquid water to a temperature of at least 190 F. at a pressure to keep the heated water in a liquid phase, and contacting the heated water with oxygen and an oxidation catalyst including a noble metal on a porous support comprising a bi-modal pore size distribution including pore sizes from 1 nm to 20 nm and pore sizes from 100 nm to 1000 nm. The resulting catalytic oxidation of the organic contaminants results in the release of gaseous reaction products resulting from the oxidation reaction, which are separated from the treated water in a phase separator to produce a treated water final product.

The present disclosure relates generally to catalyst materials and processes for making and using them. More particularly, the present disclosure relates to molybdenum, bismuth and iron-containing metal oxide catalyst materials useful, for example, in the partial oxidation or ammoxidation of propylene or isobutylene, processes for making them, and processes for making acrolein, methacrolein, acrylonitrile, and methacrylonitrile using such catalysts.