Abstract: A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. Methods of making and using the cracking catalyst are also described.

Abstract: A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. Methods of making and using the cracking catalyst are also described.

Abstract: A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. Methods of making and using the cracking catalyst are also described.

Abstract: The present invention provides a catalyst mixture comprising FCC catalysts and a metal passivator/trap and use thereof in trapping metal contaminants during the catalytic cracking of hydrocarbon feedstocks.

Abstract: A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. The catalyst is formed by spray-drying a slurry containing water, substantially inert microspheres and a zeolite precursor and crystallizing zeolite in the active shell to create the cracking catalyst. Methods of using the cracking catalyst are also described.

Abstract: The present invention provides a catalyst mixture comprising FCC catalysts and a metal passivator/trap and use thereof in trapping metal contaminants during the catalytic cracking of hydrocarbon feedstocks.

Abstract: A composition for promoting the oxidation of CO and minimizing NOx emissions during FCC processes comprises (i) acidic oxide support, (ii) at least one precious metal for promoting CO oxidation, and (iii) metals or metal oxides capable of reducing NOx production during CO oxidation, at least one precious metal (ii) being primarily distributed in the central interior of particulate additive and the metals or metal oxides (iii) being primarily distributed in the particulate additive as a shell around the precious metal.

Abstract: A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. Methods of making and using the cracking catalyst are also described.

Abstract: A method for testing the performance of catalysts used for conversion of FCC regenerator gases comprises subjecting the catalyst simultaneously to a mixture of gases including an oxidizing gas and a reducing gas in more than one cycle in which the ratio of the oxidizing gas to the reducing gas varies over the time of the cycle. Test gases comprising O2, CO, CO2, steam, nitrogen-containing gases and sulfur-containing gases in which the ratio of O2 to CO varies over time for each cycle and in which the products of combustion formed during each cycle can be measured periodically over the cycle yields important data on the usefulness of the catalysts for treatment of regenerator flue gas.

Abstract: Ammoxidation catalysts have been found effective for the reduction of emissions of NOx and NOx precursors during FCC catalyst regeneration.

Abstract: A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. Methods of making and using the cracking catalyst are also described.

Abstract: A composition for promoting the oxidation of CO and minimizing NOx emissions during FCC processes comprises (i) acidic oxide support, (ii) at least one precious metal for promoting CO oxidation, and (iii) metals or metal oxides capable of reducing NOx production during CO oxidation, at least one precious metal (ii) being primarily distributed in the central interior of particulate additive and the metals or metal oxides (iii) being primarily distributed in the particulate additive as a shell around the precious metal.

Abstract: A fluid catalytic cracking catalyst is provided with a high porosity by in-situ crystallizing an aluminosilicate zeolite from a reactive microsphere comprising metakaolin and hydrous kaolin. Any calcination of the reactive microsphere before reaction with a zeolite-forming solution is done at low temperatures so as to ensure the hydrous kaolin is not converted to metakaolin.

Abstract: A fluid catalytic cracking catalyst is provided with a high porosity by in-situ crystallizing an aluminosilicate zeolite from a reactive microsphere comprising metakaolin and hydrous kaolin. Any calcination of the reactive microsphere before reaction with a zeolite-forming solution is done at low temperatures so as to ensure the hydrous kaolin is not converted to metakaolin.