Solidification TRIZ Cases

Cooling dehydrogenation offgas in a direct contact condenser removes steam and aromatics before compression, cutting duty and limiting styrene polymerization.

Compressed overhead HCl is partially condensed and recycled as reflux to separate phosgene with lower energy use and minimal solvent residue.

An integrated CO2 heat pump and column process removes light and heavy impurities while cutting energy use and improving carbon dioxide recovery.

Separating a CO2 recycle stream by flash phase separation recovers NGLs without cryogenic cooling, membranes, or solvents, cutting energy use.

Multiple once-through condensers and a phase separator stabilize crude liquid oxygen flow to prevent dry-out and flammability in argon recovery.

A trapezoidal support profile raises rigidity while reducing column height and blockage of fluid outlets in packing columns.

A three-pump cryogenic air separation layout recycles excess liquid to the low-pressure column, preserving oxygen recovery and stable load response.

A non-volatile heat exchange liquid desublimates CO2 from flue gas, separating it from nitrogen while avoiding frost fouling and efficiency loss.

Cryogenic distillation and nitrogen phase separation enable continuous LMG production from mixed methane feeds while cutting methane vent losses.

Compressed overhead product transfers heat to recycled intermediate distillate, improving dividing wall column energy recovery across temperature gaps.

A rotary valve splits cryogenic fluid across parallel expanders to raise flow capacity without larger vessels, generators, or external valves.

A cryogenic slurry and permeable-wall vessel remove foulants from carrier gas in one step, cutting separation complexity, fouling risk, and energy use.

Permeate from subambient membrane separation regenerates the adsorber and is recycled to compressor stages to cut energy use while preserving CO2 recovery.

By compressing, liquefying, and reheating Martian CO2, this case shows stable hopper thrust without carrying heavy fuel from Earth.

An integrated cryogenic train recovers argon, hydrogen, and nitrogen from ammonia tail gas while avoiding the extra columns and heat exchangers of conventional schemes.

Rapid cycle swing adsorption uses countercurrent purge regeneration to remove CO2 and H2O while cutting nitrogen rejection unit size and weight.

Flow-controlled crude liquid oxygen and phase separation keep once-through argon condensers from drying out and concentrating hydrocarbons.

Methane rectification and hydrogen stripping simplify low-pressure ammonia tail-gas separation for cost-effective argon and nitrogen recovery.

Integrated distillation and cascade refrigeration control LNG heating value while recovering NGLs and handling feed gas variation.

Rapid-cycle adsorbent beds use compression-heated purge gas below 450°F to dehydrate natural gas while avoiding furnace risks and adsorbent damage.

Low-dew-point carrier gas, lance cooling, and eductor nozzles limit lime agglomeration and carbonate deposits in acid gas injection.

A dual absorber-stripper scheme recovers propane and heavier hydrocarbons from low-pressure rich gas while cutting energy use and deethanizer demand.

High-pressure natural gas drives its own cooling, expansion, and reflux loop to produce LNG in straddle plants without external power or proprietary refrigerants.

A rectification and stripping recycle scheme recovers argon from ammonia tail gas with less equipment while producing high-purity argon and nitrogen.

Pressurized vapor expansion adds cooling to LNG liquefaction, cutting refrigeration energy while increasing liquid yield.

Two closed refrigerant cycles using neon and hydrogen or helium cut energy use and simplify large-scale hydrogen liquefaction.

A membrane stage recovers carbon monoxide from cryogenic residual gas and recirculates the CO-rich retentate to raise yield.

Hot flue gases heat a mixed transfer fluid to preheat oxygen-rich oxidant, boosting heat recovery with fewer exchangers and lower cost.

Asymmetric gas treatment, NGL extraction, and cooling trains raise liquefaction capacity while cutting energy use and keeping units online.

A separated heavy-fraction pre-cool loop improves LNG cooling-curve matching, cuts compressor power, and avoids multilevel cycle complexity.

Decoupled compressor stroke and pressure-volume phase control lets each cryocooler stage reach setpoint faster under changing heat loads.

A propane-precooled bypass stream condenses and separates ethane for LNG mixed refrigerant inventory, cutting start-up time and flaring.

Multiple once-through exchangers use proportional crude liquid oxygen flow control to prevent dry out and flammability in argon reflux condensation.

J-T expansion and membrane separation recover NGL from flare gas with lower energy use and less equipment than cryogenic processing.

A single lubricated-screw compression station feeds parallel helium cold boxes, cutting cost and complexity while handling fluctuating cryogenic loads.

Liquid nitrogen and oxygen pumps replace air expansion to recover cold energy, simplify cryogenic separation, and cut power use.

A staggered air-cooled exchanger layout cuts inter-module piping, eases site installation, and improves maintenance access in modular LNG trains.

Cold vapor recovery and heavy hydrocarbon removal cut liquefaction energy use while preventing freezing components from clogging the process.

A cryogenic liquid vortex lets an air-sparged hydrocyclone remove vapors such as CO2 from carrier gases by absorption, condensation, or desublimation.

Pressure sensing at intake and outlet stages lets a liquid piston compressor match varying gas demand and multiple delivery pressures.

A semi-continuous heat exchanger vaporizes dissolved CO2, then compresses and condenses it to cut cryogenic separation energy.

Using the exchanger’s cold end as a dephlegmator condenses nitrogen for reflux, removing the bath condenser-reboiler and reducing complexity.

Compression heat regenerates cryogenic adsorbers, preserving refrigeration balance while improving low-temperature gas purification efficiency.

A cryogenic buffer tank and vaporizer sustain column feed during adsorber pressurization, cutting compressor sizing and energy use.

A single fractionating column is integrated into a GSP/expander flow to cut excess nitrogen in sales gas while avoiding stand-alone NRU cost.

Subcooling a second liquid feed before higher entry in the lower-pressure column raises liquid-vapor ratio and improves oxygen and argon recovery.

A split-stream cooling and expansion process turns high-pressure recycle CO2 into transportable low-pressure liquid CO2 for lower-cost delivery.

Compressor inlet guide vanes actively tune inlet pressure to maintain shaft speed and enthalpy-drop ratio in off-design turboexpander operation.