A method for removing gas contaminants from flowing solids in a fluid catalytic cracking (FCC) process can include: catalytically cracking a hydrocarbon feedstock in the presence of a catalyst in a riser of a FCC unit to produce a hydrocarbon product; separating the hydrocarbon product from a spent catalyst to produce a hydrocarbon product stream; regenerating the spent catalyst in a regeneration gas comprising oxygen to produce a mixture comprising a regenerated catalyst and a gas contaminant at a first concentration; introducing a stripping gas and the mixture into a regenerated catalyst stripper to produce a regenerated catalyst stream comprising the regenerated catalyst, the stripping gas, and a gas contaminant at a second concentration that is reduced by 50% or greater as compared to the first concentration; and introducing the regenerated catalyst stream to the riser.

In an FCC apparatus and process structured packing should be located at the very top of the stripping section in an upper region. The lower region below the structural packing may be equipped with fluidization equipment such as stripping media distributors and one or more gratings. This arrangement enables stripping of entrained hydrocarbons off the incoming catalyst immediately upon entry into the stripping section allowing the entrained hydrocarbon to exit the stripping section with minimized residence time to minimize post-riser cracking. Revamp of stripping sections with tall stripping sections should conducted in this way to improve performance and reduce down-time for equipment installation.

A method comprising of converting an oxygenate feed stream stock to a hydrocarbon product stream having substantially no detectable solid content can include conveying the oxygenate feed stream stock through a fluidized catalyst bed comprising catalyst particles to convert the oxygenate feedstock to the product stream comprising catalyst particles and a hydrocarbon selected from the group consisting of a C.sub.5+ gasoline, an olefin, an aromatic, and combinations thereof; and conveying the product stream through a plurality of filter units comprising filter medium to generate a filtered product stream having substantially no detectable solid material, wherein the filter medium comprises a metal alloy, a sintered metal alloy, or a combination thereof.

A cyclic metals deactivation system unit for the production of equilibrium catalyst materials including a cracker vessel configured for cracking and stripping a catalyst material; and a regenerator vessel in fluid communication with the cracker vessel, the regenerator vessel configured for regeneration and steam deactivation of the catalyst material.

A method for upgrading mixed pyrolysis oil may include contacting the mixed pyrolysis oil with hydrogen in the presence of a mixed metal oxide catalyst at reaction conditions to produce a reaction effluent including light aromatic compounds. The mixed pyrolysis oil includes multi-ring aromatic compounds and is formed from light pyrolysis oil and heavy pyrolysis oil at a ratio of 10:90 to 40:60 with light pyrolysis oil representing a bottom stream of a gas steam cracker and heavy pyrolysis oil representing a bottom stream of a naphtha steam cracker. The mixed metal oxide catalyst includes a plurality of catalyst particles with each catalyst particles including a plurality of metal oxides. An associated system for upgrading mixed pyrolysis oil may include a pyrolysis upgrading unit housing the mixed metal oxide catalyst and a separation unit operable to separate used mixed metal oxide catalyst from the reaction effluent.

The present disclosure relates to a method and an apparatus for treating, sorting and recycling an oil-containing discharged catalyst. There is provided a method for treating, sorting and recycling an oil-containing discharged catalyst, wherein the method comprises the following steps: (A) cyclonic washing and on-line activation of a discharged catalyst; (B) cyclonic spinning solvent stripping of the catalyst; (C) gas stream acceleration sorting of a high activity catalyst; (D) cyclonic restriping and particle capture of the high activity catalyst; and (E) cooling of the gas and condensation removal of the solvent. There is further provided an apparatus for treating, sorting and recycling an oil-containing discharged catalyst.

Systems and methods are provided for selective oxidation of CO and/or C.sub.3 hydrocarbonaceous compounds in a reaction environment including hydrocarbons and/or hydrocarbonaceous components. The selective oxidation can be performed by exposing the CO and/or C.sub.3 hydrocarbonaceous compounds to a catalytic metal that is encapsulated in a small pore zeolite. The small pore zeolite containing the encapsulated metal can have a sufficiently small pore size to reduce or minimize the types of hydrocarbons or hydrocarbonaceous compounds that can interact with the encapsulated metal.

Systems and methods are provided for selective oxidation of CO and/or C.sub.3 hydrocarbonaceous compounds in a reaction environment including hydrocarbons and/or hydrocarbonaceous components. The selective oxidation can be performed by exposing the CO and/or C.sub.3 hydrocarbonaceous compounds to a catalytic metal that is encapsulated in a small pore zeolite. The small pore zeolite containing the encapsulated metal can have a sufficiently small pore size to reduce or minimize the types of hydrocarbons or hydrocarbonaceous compounds that can interact with the encapsulated metal.

The present disclosure describes a non-destructive process for removing metals, metal ions and metal oxides present in alumina-based materials without destroying alumina, allowing the regeneration of alumina-based catalysts. Known conventional procedures and/or methods for removing metals, metal ions and metal oxides present in alumina-based materials use some inorganic acid or its mixtures to carry out digestion, which modifies the properties of alumina and those of any other element contained in the material, destroying alumina and preventing its reuse. The present disclosure is characterized by using an extracting agent that sequesters metals, metal ions and/or metal oxides present in alumina-based materials without modifying their properties. The employed extracting agent is an alcohol. The non-destructive process introduced in the present invention reaches metal (M) removal rates of at least 42% when using a continuous flow reactor and of at least 27% when a batch reactor is employed.

The present subject matter relates to a process of producing lighter distillates. The hydrocarbons in the presence of organometallic catalyst are reacted with hydrogen leading to hydrotreating and/or hydrocracking reactions. The metals present in product are subsequently captured the metal capture unit.