Process for the fluidized-bed catalytic cracking of a weakly coking feedstock having a Conradson carbon residue equal to or less than 0.1% by weight and a hydrogen content equal to or greater than 12.7% by weight, comprising at least a step of cracking the feedstock, a step of separating/stripping the effluents from the coked catalyst particles and a step of regenerating said particles, the process being characterized in that at least one coking, carbonaceous and/or hydrocarbonaceous effluent having a content of aromatic compounds of greater than 50% by weight, comprising more than 20% by weight of polyaromatic compounds, is recycled to homogeneously distributed and weakly coked catalyst, before regeneration, in order to adjust the delta coke of the process.

A process and apparatus for heating catalyst is presented. Cooler catalyst is removed from a reactor and heated with a hot gas in a riser, heated in a heating tube or heated in a heating chamber. Heated catalyst is disengaged from the hot gas if necessary and returned to the reactor. The process and apparatus can be used for producing light olefins. The hot gas may be a flue gas from an FCC regenerator or a combustion gas from a heater.

A process for upgrading a hydrocarbon-based composition includes combining a heated water stream and a pressurized, heated hydrocarbon-based composition in a mixing device to create a combined feed stream. The combined feed stream is introduced into a supercritical water reactor operating at a temperature greater than a critical temperature of water and a pressure greater than a critical pressure of water. The combined feed stream is at least partially converted to an upgraded product. At least one catalyst lobular structure is present in the supercritical water reactor.

A process for upgrading a hydrocarbon-based composition includes combining a heated water stream and a pressurized, heated hydrocarbon-based composition in a mixing device to create a combined feed stream. The combined feed stream is introduced into a supercritical water reactor operating at a temperature greater than a critical temperature of water and a pressure greater than a critical pressure of water. The combined feed stream is at least partially converted to an upgraded product. At least one catalyst lobular structure is present in the supercritical water reactor.

In accordance with one or more embodiments herein, an integrated process for upgrading a hydrocarbon oil feed stream utilizing a gasification unit, steam enhanced catalytic cracker, and an aromatics complex includes solvent deasphalting the hydrocarbon oil stream; processing the heavy residual hydrocarbons in a gasification unit to form syngas and gasification residue; hydrotreating the deasphalted oil stream to form a light C.sub.5+ hydrocarbon stream and a heavy C.sub.5+ hydrocarbon stream; steam enhanced catalytically cracking the light C.sub.5+ hydrocarbon stream; steam enhanced catalytically cracking the heavy C.sub.5+ hydrocarbon stream; passing at least a portion of the light steam enhanced catalytically cracked stream, the heavy steam enhanced catalytically cracked stream, or both to a product separator to produce a olefin product stream, a naphtha product stream, and a BTX product stream; and processing the naphtha product stream in the aromatics complex to produce benzene and xylenes.

In accordance with one or more embodiments herein, an integrated process for upgrading a hydrocarbon oil feed stream utilizing a gasification unit, steam enhanced catalytic cracker, and an aromatics complex includes solvent deasphalting the hydrocarbon oil stream; processing the heavy residual hydrocarbons in a gasification unit to form syngas and gasification residue; hydrotreating the deasphalted oil stream to form a light C.sub.5+ hydrocarbon stream and a heavy C.sub.5+ hydrocarbon stream; steam enhanced catalytically cracking the light C.sub.5+ hydrocarbon stream; steam enhanced catalytically cracking the heavy C.sub.5+ hydrocarbon stream; passing at least a portion of the light steam enhanced catalytically cracked stream, the heavy steam enhanced catalytically cracked stream, or both to a product separator to produce a olefin product stream, a naphtha product stream, and a BTX product stream; and processing the naphtha product stream in the aromatics complex to produce benzene and xylenes.

An integrated process for upgrading a hydrocarbon oil feed stream utilizing a delayed coker, steam enhanced catalytic cracker, and an aromatics complex includes solvent deasphalting the hydrocarbon oil stream; delayed coking the heavy residual hydrocarbons; hydrotreating the delayed coker product stream and the deasphalted oil stream to form a C.sub.3-C.sub.4 hydrocarbon stream, a light C.sub.5+ hydrocarbon stream, and a heavy C.sub.5+ hydrocarbon stream; dehydrogenating the C.sub.3-C.sub.4 hydrocarbon stream to form propylene and butylene; steam enhanced catalytically cracking the light C.sub.5+ hydrocarbon stream; steam enhanced catalytically cracking the heavy C.sub.5+ hydrocarbon stream; passing at least a portion of the light steam enhanced catalytically cracked stream, the heavy steam enhanced catalytically cracked stream, or both to a product separator to produce a olefin product stream, a naphtha product stream, and a BTX product stream; and processing the naphtha product stream in the aromatics complex to produce benzene and xylenes.

An integrated process for upgrading a hydrocarbon oil feed stream utilizing a delayed coker, steam enhanced catalytic cracker, and an aromatics complex includes solvent deasphalting the hydrocarbon oil stream; delayed coking the heavy residual hydrocarbons; hydrotreating the delayed coker product stream and the deasphalted oil stream to form a C.sub.3-C.sub.4 hydrocarbon stream, a light C.sub.5+ hydrocarbon stream, and a heavy C.sub.5+ hydrocarbon stream; dehydrogenating the C.sub.3-C.sub.4 hydrocarbon stream to form propylene and butylene; steam enhanced catalytically cracking the light C.sub.5+ hydrocarbon stream; steam enhanced catalytically cracking the heavy C.sub.5+ hydrocarbon stream; passing at least a portion of the light steam enhanced catalytically cracked stream, the heavy steam enhanced catalytically cracked stream, or both to a product separator to produce a olefin product stream, a naphtha product stream, and a BTX product stream; and processing the naphtha product stream in the aromatics complex to produce benzene and xylenes.

An integrated process for upgrading a hydrocarbon oil feed stream includes solvent deasphalting the hydrocarbon oil stream; processing the heavy residual hydrocarbons in a gasification unit to form syngas and gasification residue; hydrotreating the deasphalted oil stream to form a C.sub.3-C.sub.4 hydrocarbon stream, a light C.sub.5+ hydrocarbon stream, and a heavy C.sub.5+ hydrocarbon stream; dehydrogenating the C.sub.3-C.sub.4 hydrocarbon stream to form propylene and butylene; steam enhanced catalytically cracking the light C.sub.5+ hydrocarbon stream; steam enhanced catalytically cracking the heavy C.sub.5+ hydrocarbon stream; passing at least a portion of the light steam enhanced catalytically cracked stream, the heavy steam enhanced catalytically cracked stream, or both to a product separator to produce a olefin product stream, a naphtha product stream, and a BTX product stream; and processing the naphtha product stream in the aromatics complex to produce benzene and xylenes.

An integrated process for upgrading a hydrocarbon oil feed stream includes solvent deasphalting the hydrocarbon oil stream; processing the heavy residual hydrocarbons in a gasification unit to form syngas and gasification residue; hydrotreating the deasphalted oil stream to form a C.sub.3-C.sub.4 hydrocarbon stream, a light C.sub.5+ hydrocarbon stream, and a heavy C.sub.5+ hydrocarbon stream; dehydrogenating the C.sub.3-C.sub.4 hydrocarbon stream to form propylene and butylene; steam enhanced catalytically cracking the light C.sub.5+ hydrocarbon stream; steam enhanced catalytically cracking the heavy C.sub.5+ hydrocarbon stream; passing at least a portion of the light steam enhanced catalytically cracked stream, the heavy steam enhanced catalytically cracked stream, or both to a product separator to produce a olefin product stream, a naphtha product stream, and a BTX product stream; and processing the naphtha product stream in the aromatics complex to produce benzene and xylenes.