Solvent extraction separates cycle oil from FCC slurry to prevent loss during coking prevention while upgrading it into diesel.
A pyrolysis and catalytic cracking system converts unsorted plastic waste into a high-purity hydrogen-rich gas mixture.
Hydrotreating renewable paraffinic feed stocks enables fluid catalytic cracking into non-oxygenated hydrocarbon fuels.
Integrating oxidative desulfurization with fluid catalytic cracking reduces sulfur content by fifty percent without requiring separate facility upgrades.
Magnesium salt treatment replaces rare earth metals in the catalyst formulation to maintain hydrothermal stability while lowering raw material costs.
Obstructing members segment the fluidized bed to reduce catalyst fines loss while maintaining efficient circulation and gas distribution.
Segmented riser injection reduces residence time for recycled oligomers, preventing back-cracking to butenes and boosting propene selectivity.
Sequential syngas and air supply units in a catalyst regenerator enable efficient coke removal for small catalyst volumes.
Cyclic dehydrogenation converts paraffinic components in fluidized catalytic cracking effluent into light olefins using shared infrastructure.
Group IIIB element modification of molecular sieves improves hydrothermal stability while capturing nickel and vanadium contaminants.
Segmented catalyst blend with tailored pore volumes reduces coke formation while maintaining hydrothermal resistance and selectivity.
Introducing biomass-derived renewable fuel oil into a fluid catalytic cracker quench riser system downstream of petroleum injection.
Inner tube purging orifices route dispersion gas into the annular liquid conduit, preventing catalyst suction and blockage during hydrocarbon feed interruption.
A fluid catalytic cracking catalyst additive removes excess phosphate to enhance propylene and gasoline selectivity.
Fluidizer nozzle directs a jet of agent into spent catalyst within the lateral section to maintain continuous circulation.
Reactor grids convert petroleum gas into low-boiling components, reducing crude oil viscosity and eliminating costly heating equipment.
Phosphate-silica-alumina binder supports high ZSM-5 loading to boost propylene yields while preserving base catalyst activity.
Co-feeding methanol provides exothermic heat for naphtha cracking, reducing energy consumption while increasing propylene yield.
Segmented combustion raises flue gas temperature to 2500°F, overcoming catalyst limits to boost power recovery in fluid catalytic cracking systems.
Segmented risers transport regenerated and coked catalysts to a central mixing zone, resolving slow mixing speeds that cause carbon loss.
Phosphorus-modified zeolite beta increases light olefin production while suppressing coke formation.
A counter-current reactor system moves catalyst downward while hydrocarbon feed rises upward to enhance contact efficiency.
Vertical wall tunnel dampens swirling catalyst flow while lateral baffle deflects particles to reduce hardware erosion.
Introducing aromatic bottoms into the FCC reactor boosts coke formation, supplying necessary combustion heat for hydrogen-rich feed processing.
A BP neural network model determines optimal operating conditions to reduce octane number loss during gasoline desulfurization in S-Zorb units.
Cooling oil gas and using spent catalyst to absorb condensed liquids prevents coking in disengagers while generating high-pressure steam.
Yttrium-exchanged Y zeolite catalysts boost light olefins yields and gasoline octane numbers while maintaining structural stability.
Amorphous mixed metal oxide catalyst enables oxidative dehydrogenation of alkanes to olefins at reduced temperatures.
An integrated manifold assembly consolidates multiple nozzles and isolation valves, reducing erosion exposure and maintenance complexity in reactor systems.
Uncombusted hydrocarbon stream provides regenerator heat without pre-ignition, reducing carbon dioxide emissions and preventing catalyst attrition.
Pulsed heating reduces energy consumption and processing time while producing kerosene-like fuel from polymer waste.
Segmented distributor nozzles channel fluidizing gas into a central chamber and outer riser zone to resolve uneven gas distribution bottlenecks.
Angled lateral slot walls atomize hydrocarbon feed while redirecting catalyst flow to reduce erosion on inter-slot walls.
Segmented injection points introduce recycled naphtha fractions based on reactivity to control residence time, boosting ethylene and propylene yields.
A Y-zeolite catalyst process combines organic oxygenate and hydrocarbon conversion streams for efficient product separation.
Zirconium and hafnium substitution in ultra-stable Y-type zeolite increases gasoline and light olefins while minimizing dry gas and coke formation.
Direct reactor feed and effluent heat exchange in the FCC main column resolves high coke production from heavy feeds by optimizing thermal efficiency.
Diverting coking cuts to a lateral fluidized bed prevents hot spots and afterburning in the main regenerator while maintaining heat balance.
Introducing an oxygen-enriched stream into the dense phase bed reduces nitrogen oxide emissions below 50 ppm while maintaining operational temperature limits.
Sintered composite catalyst combines oxide powder with high-melting-point carriers to enhance thermal stability during hydrocarbon processing.
Fractionating crude oil into light and heavy streams enables selective hydrotreatment of the heavy fraction before fluid catalytic cracking.
Optimized catalyst system reduces aromatic content while maintaining net heat of combustion exceeding 128,000 Btu/gal.
Sequential regeneration stages bury heavy metals to improve selectivity while reducing dry gas and coke yields.
Phosphorus-modified beta zeolite balances acid site density and hydrothermal stability to increase C4 olefin selectivity in heavy oil cracking.
Nickel oxide nanoparticles on alumina supports enable thermal catalytic cracking of heavy oils at reduced temperatures.
Segmented baffle assemblies releasably coupled to riser sidewalls create turbulence for uniform mixing while simplifying installation and maintenance.
A fluidized catalytic conversion method increases propylene yield by processing heavy feedstock with a high-temperature catalyst.
A catalytic process converts saturated hydrocarbons into lower olefins using dehydrogenation and cracking steps.