A process for treatment of PFO from a steam cracking zone includes selectively hydrogenating PFO or a portion thereof for conversion of polyaromatics compounds contained in the PFO into aromatic compounds with one benzene ring to produce a selectively hydrogenated stream. The selectively hydrogenated stream is reacted in a fluid catalytic cracking reactor for selective ring opening and dealkylation to produce fluid catalytic cracking including light cycle oil. The light cycle oil is separated into BTX compounds. Optionally the PFO is separated into a first stream containing C9+ aromatics compounds with one benzene ring, and a second stream containing C10+ aromatic compounds, whereby the first stream containing C9+ aromatics compounds with one benzene ring is passed to the fluid catalytic cracking reactor, and the feed to the selective hydrogenation step comprises all or a portion of the second stream containing C10+ aromatic compounds.

A process for treatment of PFO from a steam cracking zone includes selectively hydrogenating PFO or a portion thereof for conversion of polyaromatics compounds contained in the PFO into aromatic compounds with one benzene ring to produce a selectively hydrogenated stream. The selectively hydrogenated stream is reacted in a fluid catalytic cracking reactor for selective ring opening and dealkylation to produce fluid catalytic cracking including light cycle oil. The light cycle oil is separated into BTX compounds. Optionally the PFO is separated into a first stream containing C9+ aromatics compounds with one benzene ring, and a second stream containing C10+ aromatic compounds, whereby the first stream containing C9+ aromatics compounds with one benzene ring is passed to the fluid catalytic cracking reactor, and the feed to the selective hydrogenation step comprises all or a portion of the second stream containing C10+ aromatic compounds.

Systems and methods are provided for performing the initial heating phase for a thick wall reactor, such as a hydroprocessing reactor, by using heat tracing to heat the exterior walls of the reactor. Instead of attempting to initially heat the reactor by passing a low pressure heat transfer gas through the interior of the reactor, external heater(s) placed under the reactor insulation can be used to heat the exterior of the reactor. An example of a suitable external heater is a heat tracing blanket, where heat is provided by passing steam through pipes in contact with the external surface or by electrical heaters in contact with the external surface. This can allow for more rapid heating of the reactor, so that a target temperature can be achieved in a time of 5.0 hours or less.

Systems and methods are provided for performing the initial heating phase for a thick wall reactor, such as a hydroprocessing reactor, by using heat tracing to heat the exterior walls of the reactor. Instead of attempting to initially heat the reactor by passing a low pressure heat transfer gas through the interior of the reactor, external heater(s) placed under the reactor insulation can be used to heat the exterior of the reactor. An example of a suitable external heater is a heat tracing blanket, where heat is provided by passing steam through pipes in contact with the external surface or by electrical heaters in contact with the external surface. This can allow for more rapid heating of the reactor, so that a target temperature can be achieved in a time of 5.0 hours or less.

The present disclosure generally relates to systems and methods utilizing regenerative agriculture for the procurement, production, refinement and/or transformation of low carbon intensity transportation fuels, including low carbon intensity biodiesel and/or renewable diesel, low carbon intensity biogasoline, low carbon intensity aviation, marine and kerosene fuels as well as fuel oil blends, low carbon intensity ethanol, and low carbon intensity hydrogen, that may be beneficially commercialized directly to consumers. In further aspects, the systems and methods of the present disclosure advantageously generate low carbon intensity comestibles, including sustainably-sourced meal and/or feed. The disclosed systems and methods may be utilized and optimized such that the resulting fuels and foodstuffs are characterized by a reduction in greenhouse gas production and a diminution in the fertilizer, pesticide and water required for producing the associated crop feedstocks.

The present disclosure generally relates to systems and methods utilizing regenerative agriculture for the procurement, production, refinement and/or transformation of low carbon intensity transportation fuels, including low carbon intensity biodiesel and/or renewable diesel, low carbon intensity biogasoline, low carbon intensity aviation, marine and kerosene fuels as well as fuel oil blends, low carbon intensity ethanol, and low carbon intensity hydrogen, that may be beneficially commercialized directly to consumers. In further aspects, the systems and methods of the present disclosure advantageously generate low carbon intensity comestibles, including sustainably-sourced meal and/or feed. The disclosed systems and methods may be utilized and optimized such that the resulting fuels and foodstuffs are characterized by a reduction in greenhouse gas production and a diminution in the fertilizer, pesticide and water required for producing the associated crop feedstocks.

A method for reducing coke formation during thermal or thermochemical conversion of hydrocarbon feedstocks in a gaseous diluent using a rotary reactor provided. The method comprises supplying an amount of additional gaseous diluent into high-temperature region(s) (10) of the reactor, where conditions are established for thermal or thermochemical conversion to occur. In these regions, said additional gaseous diluent is supplied into a reaction space through perforations and/or pores (11) made in stationary blades (2, 4) or in other surfaces (7, 7A) enclosing a process fluid flow. A rotary apparatus configured to implement the method is further provided.

A method for reducing coke formation during thermal or thermochemical conversion of hydrocarbon feedstocks in a gaseous diluent using a rotary reactor provided. The method comprises supplying an amount of additional gaseous diluent into high-temperature region(s) (10) of the reactor, where conditions are established for thermal or thermochemical conversion to occur. In these regions, said additional gaseous diluent is supplied into a reaction space through perforations and/or pores (11) made in stationary blades (2, 4) or in other surfaces (7, 7A) enclosing a process fluid flow. A rotary apparatus configured to implement the method is further provided.

Systems and methods are disclosed for managing the operation of a plant, such as a chemical plant or a petrochemical plant or a refinery, and more particularly for enhancing system performance of a catalyzed reaction system by, among other features, detecting catalyst deactivation and cycle length. Plants may include those that provide hydrocarbon cracking or other process units. A plant may include a reactor, a heater, a catalyst bed, a separator, and other equipment. The equipment may use catalyst to treat feed products to remove compounds and produce different products. Catalysts used in the various reactors in these processes become deactivated over time. Systems and methods are disclosed for extending catalyst life and thereby improving efficiency of the plant.

Systems and methods are disclosed for managing the operation of a plant, such as a chemical plant or a petrochemical plant or a refinery, and more particularly for enhancing system performance of a catalyzed reaction system by, among other features, detecting catalyst deactivation and cycle length. Plants may include those that provide hydrocarbon cracking or other process units. A plant may include a reactor, a heater, a catalyst bed, a separator, and other equipment. The equipment may use catalyst to treat feed products to remove compounds and produce different products. Catalysts used in the various reactors in these processes become deactivated over time. Systems and methods are disclosed for extending catalyst life and thereby improving efficiency of the plant.