Catalytic Cracking TRIZ Cases

A dual-reactor system processes light and heavy hydrocarbon feedstocks using distinct contact times to maximize light olefin yield.

External feed injection nozzles and a central catalyst flow regulator eliminate complex internal structures, improving cracking rates.

Solid oxygen carrier shifts equilibrium by removing hydrogen, reducing operating costs and side reactions.

Polar solvent extraction removes metals and aromatics from vacuum resid, enabling catalytic cracking of the purified raffinate.

Converting olefinic dry gas into regenerator fuel eliminates turbine fouling and flaring emissions while recovering energy.

Zeolite catalysis shifts thermal cracking pathways to boost propylene selectivity and stabilize product distribution ratios.

Zeolite catalysts lower cracking temperatures while maintaining heat balance, achieving high propylene selectivity without excessive methane or coke yields.

A hydroprocessing unit contacts heavy oil with HDM, HDS, and HDA catalysts to form a purified effluent for direct cracking in an HS-FCC reactor.

Periodic reverse-flow combustion removes coke deposits from the catalyst, maintaining aromatic hydrocarbon yield without permanent deactivation.

Extending contact time to 30 seconds with basic catalysts reduces aromatic hydrocarbon formation while maintaining high conversion efficiency.

Eta-alumina composite catalyst reduces gasoline olefins while increasing aromatics and isoparaffins.

A phosphorus and metal loaded core-shell molecular sieve combines a ZSM-5 core with a beta shell to catalyze hydrocarbon conversion.

Segmenting the reactor into dedicated risers allows tailored catalyst activity and temperature control, resolving single-riser limitations on olefin yield.

Automated weight calibration device applies known force to load cell sensors for precise material delivery measurement.

Hexagonal tube packing increases catalyst loading and hydraulic capacity while reducing manufacturing complexity.

Chloroaluminate ionic liquid catalysts alkylate olefins with isoparaffins to produce low-boiling alkylate gasoline blending components.

A multistage reaction system maintains controlled liquid-to-vapor volume ratios to maximize alkene conversion efficiency using molecular sieve catalysts.

Metal modified Y zeolite replaces rare earths with IVB metals, maintaining hydrothermal stability while lowering catalyst costs.

A hydrocarbon reactor uses counter-current catalyst flow to enhance light olefin production efficiency.

Segmenting unstabilized gasoline with a flash drum removes light ends, reducing wet gas compressor load and improving propylene recovery.

Metal-deposited montmorillonite clay additive selectively extracts sulfur from FCC gasoline, maintaining octane levels and yield without hydrotreating.

A baffle plate with guide and separation baffles forces gas and solids through a curved path to segregate the solid phase.

Segmenting the regenerator zones reduces carbon dioxide emissions while maintaining complete catalyst regeneration through controlled oxidation.

An insert in a reactor riser forces catalyst streams to flow around it, enhancing mixing efficiency.

A single compressor processes combined product streams from oxygenate conversion and olefin cracking reactors to recover light olefins.

Catalytic cracking under negative pressure enhances lower olefin yield using crystalline aluminosilicate catalysts.

A variable-resistance power-recovery turbine regulates gas flow and generates electricity from the stream.

Multi-zone catalytic cracking converts heavy feedstocks into light olefins using zeolite catalysts and specific temperature profiles.

A value-added spent FCC catalyst composition enhances catalytic activity through rare earth or aluminum components.

Thermal treatment of crude oil reduces asphaltene content to produce mesophase pitch, preventing reactor fouling and catalyst deactivation.

Segmented XTO-OC reaction zones manage coke deposition on circulating zeolitic catalysts to boost ethylene and propylene selectivity.

Solvent extraction removes asphaltenes to prevent equipment coking, enabling stable hydrocracking of heavy feedstocks.

Acetylbutyrolactone additives in hydrotreating catalysts lower operating temperatures while maintaining high sulfur removal efficiency.

A dense phase riser reactor processes naphtha feed streams using high solid volume fractions and controlled superficial gas velocities to drive catalytic cracking.

Sodium-controlled zeolite catalysts maintain high productivity while preventing aromatic conversion to preserve product selectivity.

Vacuum separator extracts cycle oil from clarified slurry oil for hydrocracking into diesel and naphtha.

Modified zeolite additive raises gasoline octane by 2-3 units while preserving yield through optimized SiO2/Al2O3 ratios.

Phosphorus-treated ZSM-5 zeolite microspheres resolve the trade-off between olefin selectivity and attrition resistance in fluid catalytic cracking.

Integrated pyrolysis and catalytic cracking convert biomass to gasoline, reducing energy consumption while meeting EURO VI standards.

Recycles riser quench fluid to cool reactor streams, improving selectivity while reducing treatment burden.

Heavy aromatic feedstocks are converted into benzene, toluene, and mixed xylenes using hydrodearylation catalysts and polymer additives.

A gas-assisted spray nozzle assembly uses a radially offset impingement pin to atomize liquid hydrocarbons within fluidized catalytic cracking riser reactors.