The present invention relates to a process for producing chemical grade BTX from a mixed feedstream comprising C5-C12 hydrocarbons by contacting said feedstream in the presence of hydrogen with a catalyst having hydrocracking/hydrodesulphurization activity. Particularly, a process for producing BTX from a feedstream comprising C5-C12 hydrocarbons is provided comprising the steps of: (a) contacting said feedstream in the presence of hydrogen with a combined hydrocracking/hydrodesulphurization catalyst to produce a hydrocracking product stream comprising BTX; and (b) separating the BTX from the hydrocracking product stream. The hydrocracking/hydrodesulphurization catalyst comprises 0.1-1 wt-% hydrogenation metal in relation to the total catalyst weight. The hydrocracking/hydrodesulphurization catalyst further comprises a zeolite having a pore size of 5-8 and a silica (SiO.sub.2) to alumina (Al.sub.2O.sub.3) molar ratio of 5-200. The hydrocracking/hydrodesulphurization conditions include a temperature of 450-580 C., a pressure of 300-5000 kPa gauge and a Weight Hourly Space Velocity of 0.1-10 h.sup.1.

A simplified process is provided for creating hybrid crude oils and hybrid crude fractions with characteristics superior to the original. The process uniquely combines gases with crude oil or crude fractions in an effervescent turbulent manner at low temperatures and pressures and without the further aid of catalysts. The process breaks large chain hydrocarbons into smaller chain hydrocarbons, molecularly combines carbon, hydrogen, and/or hydrocarbon molecules from the gases with and into hydrocarbon molecules of the crude or crude fraction, and separates contaminants and impurities.

A simplified process is provided for creating hybrid crude oils and hybrid crude fractions with characteristics superior to the original. The process uniquely combines gases with crude oil or crude fractions in an effervescent turbulent manner at low temperatures and pressures and without the further aid of catalysts. The process breaks large chain hydrocarbons into smaller chain hydrocarbons, molecularly combines carbon, hydrogen, and/or hydrocarbon molecules from the gases with and into hydrocarbon molecules of the crude or crude fraction, and separates contaminants and impurities.

The invention relates to a process for producing olefins from a waste plastics pyrolysis oil feed stream containing hydrocarbons. An oxygen containing stream and a hydrogen and/or methane containing stream are pre-heated outside a autothermal reactor in a burner of the autothermal reactor. Steam is generated in a combustion zone of the autothermal reactor. A waste plastics pyrolysis oil feed stream is pre-heated outside the autothermal reactor and then fed into the autothermal reactor. The steam generated in the combustion zone mixes with the pre-heated feed stream in a mixing and cracking zone of the autothermal reactor. The steam and the pre-heated feed stream are fed into the mixing and cracking zone from substantially opposite directions. The hydrocarbons are pyrolytically cracked to provide an effluent containing olefins.

The invention relates to a process for producing olefins from a waste plastics pyrolysis oil feed stream containing hydrocarbons. An oxygen containing stream and a hydrogen and/or methane containing stream are pre-heated outside a autothermal reactor in a burner of the autothermal reactor. Steam is generated in a combustion zone of the autothermal reactor. A waste plastics pyrolysis oil feed stream is pre-heated outside the autothermal reactor and then fed into the autothermal reactor. The steam generated in the combustion zone mixes with the pre-heated feed stream in a mixing and cracking zone of the autothermal reactor. The steam and the pre-heated feed stream are fed into the mixing and cracking zone from substantially opposite directions. The hydrocarbons are pyrolytically cracked to provide an effluent containing olefins.

A process including preheating a hydrocarbon feed in a first preheat zone of a convection section, recovering a preheated hydrocarbon stream; heating the preheated hydrocarbon stream in a secondary transferline exchanger, recovering a heated hydrocarbon stream; feeding the heated hydrocarbon stream to a second preheat zone of the convection section to vaporize a portion of heated hydrocarbon stream, recovering a cracking feedstream; cracking hydrocarbons in the cracking feedstream in one or more coils in a radiant section, recovering a cracked hydrocarbon product; and cooling the cracked hydrocarbon product in the secondary transferline exchanger in indirect heat exchange with the preheated hydrocarbon stream, recovering a cooled hydrocarbon product stream.

A process including preheating a hydrocarbon feed in a first preheat zone of a convection section, recovering a preheated hydrocarbon stream; heating the preheated hydrocarbon stream in a secondary transferline exchanger, recovering a heated hydrocarbon stream; feeding the heated hydrocarbon stream to a second preheat zone of the convection section to vaporize a portion of heated hydrocarbon stream, recovering a cracking feedstream; cracking hydrocarbons in the cracking feedstream in one or more coils in a radiant section, recovering a cracked hydrocarbon product; and cooling the cracked hydrocarbon product in the secondary transferline exchanger in indirect heat exchange with the preheated hydrocarbon stream, recovering a cooled hydrocarbon product stream.

The present disclosure relates to a method of providing a renewable cracker feed obtainable by fractionating an isomeric hydrocarbon composition having an i-paraffins content of 85.0 wt.-% or more and a carbon range in a range of from 20 to 32 into at least a lower-boiling fraction and a higher-boiling fraction, and providing at least part of the lower-boiling fraction or at least part of the higher-boiling fraction as the renewable cracker feed; thermally cracking the renewable cracker feed in a thermal cracking furnace, optionally together with co-feed(s) and/or additive(s); and subjecting an effluent of the thermal cracking furnace to a separation treatment to provide at least a light olefin(s) fraction. A polymer composition obtainable by use of olefin(s) in the light olefin(s) fraction is also disclosed.

The present disclosure relates to a method of providing a renewable cracker feed obtainable by fractionating an isomeric hydrocarbon composition having an i-paraffins content of 85.0 wt.-% or more and a carbon range in a range of from 20 to 32 into at least a lower-boiling fraction and a higher-boiling fraction, and providing at least part of the lower-boiling fraction or at least part of the higher-boiling fraction as the renewable cracker feed; thermally cracking the renewable cracker feed in a thermal cracking furnace, optionally together with co-feed(s) and/or additive(s); and subjecting an effluent of the thermal cracking furnace to a separation treatment to provide at least a light olefin(s) fraction. A polymer composition obtainable by use of olefin(s) in the light olefin(s) fraction is also disclosed.

The present invention relates to a method for producing a hydrocarbon product from mixed polymer waste, preferably plastic waste and/or post consumer plastic waste, wherein said mixed polymer waste comprises 50-99.5 wt % polyolefins and 0.5-50 wt % polymer comprising heteroatoms, based on the total weight of the mixed polymer waste, comprising: (i) feeding said mixed polymer waste into an extruder, preferably a single screw extruder; (ii) adding chemicals, preferably alkali metal salt and/or alkali earth metal salt, to said mixed polymer waste to degrade said polymer comprising heteroatoms; (iii) removing degradation products derived from said polymer comprising heteroatoms from said hydrocarbon product; and (iv) collecting the hydrocarbon product. The method and system of the present invention may be used as a pre-treatment in recycling mixed polymer waste to produce a hydrocarbon product ideally suited for pyrolysis.