Thermal Non-Catalytic Cracking TRIZ Cases

This case melts plastic waste, uses furnace-soaker visbreaking and stripping gas, then produces liquid hydrocarbon oil.

Hydroconversion upgrades heavy hydrocarbons for pipeline transport with less diluent and pitch.

An ECLC fouling indicator uses reactor temperature, solids circulation, and feed nozzle selection to prevent stripper flooding.

This process removes sulfur while protecting alpha olefins as adducts, then cracks them to recover desulfurized products.

Hydrogen sulfide dosing limits carbon disulfide in pygas from steam cracking.

This integrated process removes heavy residues, hydrotreats streams, and cracks them to produce olefins, naphtha, benzene, and xylenes.

Controlled-pore ETS-4 selectively adsorbs olefins and excludes same-carbon paraffins, improving recovery without conventional distillation.

Offset agitating elements create turbulence in cracking tubes, improving heat transfer while limiting coking and pressure loss.

A heated diluent and multifunctional catalyst purify pyrolysis plastic oil, reducing unsaturation, fouling, and catalyst poisoning.

Crack recycle pyrolysis oil, then fractionate olefins to enrich propylene.

Sequential hydrogenation, hydroconversion, and hydrotreatment reduce corrosion and coking while supporting continuous catalyst renewal.

This case uses two-stage steam heat exchange to preheat hydrocarbon feed, limiting fouling before electric steam cracking.

Selective hydrogenation and hydrotreatment remove pyrolysis oil impurities before steam cracking.

Phosphorous-free molybdenum complexes passivate metal surfaces, reducing foulant deposition in high-temperature processing equipment.

A distillation tower conditions PFO and PGO feeds before gasification, reducing viscosity-related pressure, emissions, and explosion risks.

This case integrates polymeric waste into coker feed, treats halides and oxygen compounds, and polymerizes recovered olefins.

Coke accumulates in a trap during steam cracking, then exits through a quench-bypassing stream to preserve operation.

Pyrolysis gas integration improves olefin separation from mixed plastic waste.

This continuous process blends polyethylene or polypropylene waste with petroleum for hydrocracking into polypropylene, fuels, and base oil.

An Allam-cycle CO2 loop keeps olefin compression running during reactor outages.

Desalting, preheating, hydroprocessing, and mercury traps reduce effluent mercury without adding a separate refining facility.

Selective hydrogenation, hydrotreatment, and hydrocracking reduce contaminants and convert heavy fractions for steam cracking.

This case separates ANJEVOC cracking effluent through rapid cooling and staged CO2 removal to recover ethylene from diverse feeds.

Adding a hydrogen donor to polyolefin pyrolysis increases gasoline yield and reduces heavy hydrocarbons for naphtha cracking feedstock.

Thermal dechlorination under vacuum or inert gas prepares PVC waste plastics for distillation and coking into chemical feedstocks.

Heating PVC waste plastics under vacuum removes chlorine before coking, enabling refinery-compatible chemical feedstock and circular use.

Selective hydrogenation, hydrodemetallization, and hydrotreatment purify plastic pyrolysis oil with renewable feedstocks for steam cracking.

A staged catalyst process removes diolefins, metals, sulfur, and nitrogen from pyrolysis oil, improving steam cracker compatibility.