Thermal Non-Catalytic Cracking TRIZ Cases

See how a W-shaped radiant coil configuration eliminates Y-connectors, reduces transfer line vo

Closed-loop hydrocarbon circulation cleans petroleum equipment during operation, cutting downtime, coke buildup, and yield loss.

Preformed divided wall columns fit inside a shell for external welding, easing small-column assembly while reducing thermal and pressure stress.

Damping plates and a stabilized coolant zone cut liquid entrainment in quenched syngas, improving scrubber operation and particulate removal.

Recycled pyrolysis effluent forms a plastic slurry for fluidized-bed cracking, raising olefin yield while cutting energy use and equipment cost.

An isolated pump-around loop uses heated aqueous oxidant to burn off char and coke deposits without shutdown, preserving heat transfer and flow.

Direct steam cracking handles plastic-derived liquid feed without hydrotreating or fractionation, using quench oil to limit fouling and coking.

Further pyrolysis of the char-rich drag stream recovers vaporous pyrolysis oil, boosting yield and cutting low-value byproducts.

A controlled PFO-PGO blend lowers viscosity and flash-point risk, enabling safer gasification feed use with lower emissions and cost.

Hydrotreating liquefied waste plastic with VGO or HGO removes chlorine, sulfur, and nitrogen before hydrocracking into high-purity base oil feed.

Using a C4-C7-rich recycle pyrolysis oil feed enables gas-furnace cracking with higher olefin yield while limiting recombination and tube fouling.

Infrared tube temperature mapping lets controllers vary furnace heat locally during decoking to limit hotspots, coke buildup, and coil damage.

Quaternary ammonium hydroxides neutralize acidic compounds above 180°C to reduce corrosion and fouling without choline hydroxide stability issues.

Multi-stage flash and fraction separation reroute heavy fractions to curb furnace coking, cut energy waste, and raise ethylene yield.

Waste plastic is converted through pyrolysis, steam cracking, and aromatics separation to produce high-purity recycled paraxylene with existing equipment.

Titanium- and zirconium-substituted USY and beta zeolites raise hydrocracking activity and middle distillate selectivity through mesoporosity control.

Selective hydrogenation and hydrotreatment clean plastic pyrolysis oil to cut coking, corrosion, and catalyst risks in steam cracking.

Staged air-steam ratio changes remove coke faster while holding furnace temperature steady to limit coil spallation and extend coil life.

Thermal depolymerization converts mixed polyolefin waste into purified wax and oil fractions for fuels, lubricants, and refinery feedstocks.

Distilled PFO and PGO streams replace viscous refinery residue in gasification, improving atomization while lowering emissions and operating cost.

Blending ethylene tar with catalytic slurry oil enables hydrotreating and cracking that lower sulfur, improve thermal stability, and raise needle coke yield.

Multistream heat recovery routes flue gas to air preheating and cracked gas to feed preheating, cutting fuel use and CO2 emissions.

Capturing CO2 and reusing flue-gas and off-gas energy helps integrated plastic pyrolysis and cracking cut carbon footprint.

Sub-stoichiometric oxidation creates moving heat and pyrolysis zones in carbon ore, cutting energy use and avoiding nitrogen-diluted CO2.

Direct alkylation after dehydrogenation avoids paraffin-olefin separation, cutting energy use while upgrading NGLs into clean alkylate fuels.

A two-stage supercritical water route cracks heavy residue streams before catalytic gasification to raise hydrogen yield and suppress coke.

Separate flue gas and cracked gas multistream heat recovery raises air preheat temperature while cutting fuel gas use and CO2 emissions.

Heat recovery and feed separation cut electric cracking duty, reduce fouling, and lower CO2 in heavy-feed olefin production.

Selective removal of >575°C compounds lets light sweet crude fractions be steam cracked with less coke and higher ethylene and propylene yield.

Pyrolysis oil from recycled waste is converted into olefin feedstocks for oxo glycols, enabling flexible recycle content without added sorting complexity.

Pyrolysis converts mixed recycled waste into alpha olefins and fatty alcohols while avoiding complex segregation and extra equipment.

Internal reactor heating cuts wall temperature, coke formation, and thermal degradation during hydrocarbon conversion.

Pyrolysis gasoline from waste plastic is purified in an aromatics complex to produce high-purity recycled paraxylene using existing units.

Electric radiant heating and excess air cut fuel use and CO2 in olefin cracking while preserving ethylene yield across hydrocarbon feeds.

Uniformly distributed heating elements in a compact heater block reduce radiant coil hot spots, extend run length, and improve olefin cracking.

High-pressure primary and secondary pyrolysis with distillation suppresses heavy-component vaporization and raises light oil yield from waste plastics.

Steam cracking crude oils into tar-derived pitch helps stabilize carbon fiber feed quality while lowering cost and enabling spinnable mesophase control.

A repeating electric heater layout keeps each heating tube equidistant from multiple elements to deliver more uniform heating with less space and CO2.

Framework-substituted beta zeolite suppresses hydrogen-transfer and cyclization reactions to raise propylene and ethylene yields.

Rearranging TLE and HRU heat recovery cuts cracking-furnace energy loss, lowers greenhouse gas emissions, and improves steam use.

Mechanical pig cleaning plus organo sulfate inhibition forms a protective tube-wall coating that cuts coker fouling and downtime.

Controlling cyclic monoene in cyclic diene feedstocks keeps them fluid at normal temperature while enabling high-yield aldehyde and alcohol production.

Waste heat from cracked effluent gas superheats high-pressure steam outside the furnace, cutting fuel use, CO2 emissions, and turbine condensation.

Distilling NCC pyrolysis fuel and gas oils enables low-viscosity gasification feed while recovering light fractions for higher BTX output.

Circulating heated particles crack heavy hydrocarbon feeds into olefins while limiting furnace fouling and enabling downstream oligomerization.

Waste-plastic pyrolysis streams are routed through resin and aromatics facilities to produce high-purity recycled paraxylene.

Heating mixed plastic and refinery feedstocks with a purge gas removes HCl early, cutting corrosion risk and extra chloride-removal hardware.

Targeted steam injection through porous reactor surfaces suppresses coke in high-temperature cracking zones, extending run time and olefin yield.

Pyrolysis gas separation, aromatics recovery, and recycle cracking raise light olefin yield while reducing low-value by-products.

Moderately superheated high-pressure steam is expanded for process heat, helping electrified steam crackers cut exergy loss and CO2 emissions.

An external heat transfer fluid loop preheats furnace combustion air, cutting fuel use and CO2 while avoiding retrofit-heavy convection changes.

Liquifying and optionally dehalogenating waste plastic enables FCC or hydrocracking units to produce recycled-content para-xylene and aromatics.

Preheating whole crude below its bubble point and mixing with steam at low velocity vaporizes light fractions while limiting coking and fouling.

Integrated fractionation, deasphalting, and hydrocracking convert heavy crude fractions into steam cracker feed while reducing coke and HPNA risks.