Solidification TRIZ Cases

See how sequential fractionation with propane recycling removes nitrogen while recovering NGLs,

Elevated pressure control in a cryocooler liquefier raises liquefaction temperature and cooling power to improve small-scale cryogen output.

Liquefying and storing part of the cooling medium enables fast capacity reduction and recovery in gas expansion cooling without large gas storage volumes.

A multistage separation vessel concentrates nitrogen before the NRU, cutting compressor load and improving LNG liquefaction efficiency.

Cold LNG is used to cool a CO2 power cycle while recovered heat regasifies the fuel, cutting burner use, fuel consumption, and emissions.

An open-loop methane-ethylene coolant cuts refrigeration cost while sub-cooling ethylene below −100°C to prevent flashing in atmospheric storage.

Cryogenic separation concentrates carbon oxysulfides for metal oxide conversion, cutting sulfur carryover while preserving ethylene and propylene purity.

A bypass oxidant line and motor-driven compressor enable combustor ignition before turbine threshold speed for smoother CO2 plant startup.

A branched booster-compressor bypass varies turboexpander pressure ratio to widen liquid turndown while preventing surge and saving power.

Integrated incombustible insulation cuts cryogenic heat exchanger assembly time while limiting oxygen ignition and leak-related rupture risks.

A brazed aluminum plate-fin condenser liquefies CO2 column top gas with ammonia, cutting footprint, weight, and coolant volume.

Pleated membrane filtration and activated carbon remove oil from crude ammonia, preserving GaN vapor deposition speed without distillation.

Automatic biasing of a second expander cuts time in unsafe speed ranges, reducing resonance risk and operator burden.

Dedicated transient heat exchange lines vaporize pressurized liquid products and cool high-pressure air to meet short-term gas demand efficiently.

A cyclonic expansion separator removes bulk H2S before fractionation, cutting chiller duty while improving natural gas sweetening.

A single-column cryogenic layout removes nitrogen from 3-50 mol% feed gas while recovering C3+ liquids and cutting refrigeration demand.

Sheet-metal arcuate and z-shaped segments simplify dividing wall column assembly, cut internal welds, and improve sealing in large columns.

Integrated membrane and condensation recovery captures over 90% CO2 from flue gas while cutting energy use through cold-stream reuse.

A gas volume adjuster changes working gas quantity by operating phase to control cryopump pressure, cut power use, and preserve refrigeration.

Curved open-impeller geometry creates central free space for foreign solids while preserving close-clearance pump efficiency in washing machines.

A compressed side-draw reflux stream improves cryogenic tower rectification, cutting C2-C4+ losses while lowering energy use.

Low-frequency modulation of inter-harmonic currents limits torsional resonance in variable speed drives without torque sensors.

Combining polymeric membrane separation with cryogenic phase separation boosts flue-gas CO2 recovery above 90% with lower energy demand.

Triple-point CO2 cooling stabilizes pressure during partial condensation and distillation, improving carbon dioxide yield without larger equipment.

Staged reheating keeps CO2 separation above the triple point, preventing solidification while improving membrane efficiency and heat recovery.

A membrane-PSA hybrid captures flue-gas CO2 with vent-gas recycle and combustion-air regeneration to raise recovery while limiting compression energy.

Nitrogen washing removes inerts from ammonia loop purge gas and recycles hydrogen-rich gas to raise plant capacity with lower revamp cost.

Flash gas from LNG expansion is reused to cool light refrigerant streams, cutting liquefaction energy demand without limiting capacity.

Subcooling a second liquid air stream and feeding it above crude liquid oxygen raises the lower-column liquid-vapor ratio to improve oxygen and argon recovery.

A separated heavy refrigerant fraction forms a precool loop that closes warm-end cooling curves and cuts LNG compressor power and complexity.

Split-stream turbine expansion and heat exchange cut energy use while maintaining selective C3+ recovery from hydrocarbon-rich feed streams.

Integrated heat and mass transfer boosts C2/C3 recovery in compact NGL processing while avoiding added compression and extra fractionation equipment.

A single housing combines the condenser and reflux separator to cut heat loss, save space, and improve condensate and evaporation gas separation.

Bulk phase separation followed by TSA removes heavy hydrocarbons from natural gas while protecting adsorbent beds and preserving liquefaction efficiency.

Laser-machined nanostructures raise heat exchanger surface area, speeding natural gas cooling and liquefaction in smaller LNG units.

A hybrid screw and centrifugal compression layout raises liquefaction pressure while cutting energy use and avoiding extra compressor stages.

A third heat exchanger and recovery line let helium pre-cool heavy components to 80K with lower pressure drop and efficient normal operation.

A split natural gas feed reuses evaporated nitrogen for staged liquefaction, improving cold-energy matching with less equipment complexity.

An external reboiler and integrated cold-box cycle improve CO/N2 cryogenic separation, raising CO purity while cutting compressor energy.

Capillary wick wetting moves condensed water to warmer zones, avoiding flooding and orientation-sensitive reservoirs in laminar particle growth.

By moving the flow generator outside the cryogenic chamber, the system circulates heated coolant reliably without specialized low-temperature mechanics.

A lattice cryopanel layout boosts non-condensable gas pumping while shielding adsorption areas from moisture and adhesive buildup.

Alternating cold and warm heat-transfer fluid freezes liquid CO2 uniformly, then loosens dense dry ice from reactor walls for easy removal.

Cold CO2 and offgas streams are reused for two-stage flue gas separation, cutting energy demand while delivering liquid CO2 above 99% purity.

A low-temperature alloy enclosure with venting, fire retardant coating, and sloped drainage improves cryogenic fire protection and leak handling.

Quench cooling of the partial oxidation stream enables ash separation, heat recovery, and efficient power generation with closed-cycle CO2 capture.

A liquid oxygen purge is stored and later vaporized to limit evaporation losses while maintaining oxygen purity during demand or production swings.

A three-way J-T valve and cryogenic expander recover bypass flow losses in LNG plants while improving efficiency and power output.

Recycling purge and flash gases in syngas separation cuts inert buildup, avoids extra denitrogenation, and preserves hydrogen for adsorbent regeneration.

Diverting compressed air through bypass or booster paths lets a cryogenic air separation plant vary product pressure and output with lower energy use.