Chemical Industry TRIZ Cases

See how a carboxylic acid modifier with naphthalene rings forms ionic bonds with nylon amino gr

See how a blended refrigerant composition of 2,3,3,3-tetrafluoropropene and 1,1,1,2-tetrafluoro

See how a fuel-gas hot air system with circulating pipelines recovers residual heat to improve

See how an electrocaloric copolymer with nucleating agents replaces vapor compression refrigera

See how a precise HFO-1123/HFO-1234yf ratio achieves low GWP and high refrigerating capacity wh

See how refrigeration oil with controlled contact angle (0.1°≤Θ≤90°) and high breakdown voltage

See how a 2,3,3,3-tetrafluoropropene and 1,1,1,2-tetrafluoroethane blend achieves higher volume

See how a tetrafluoropropene-tetrafluoroethane blend achieves zero ODP, lower GWP, and higher v

R227ea, R134a, R125, and R32 balance lubricant compatibility, non-flammability, and lower GWP for R22 retrofits.

A four-component HFC blend enables R22 retrofit with mineral oil compatibility, lower discharge temperatures, and non-flammability.

Direct gas heating through a helical-tube water loop cuts steam piping losses, stabilizes wash temperature, and simplifies maintenance.

Low-voltage turbine generation is combined through one inverter to export recovered plant power without step-up transformers or bulky switchgear.

Automated sampling and feedback correct reversed or mispositioned micro-channel flat tubes, improving channel consistency and heat exchange performance.

A low-surface-energy organosilane coating gives heat exchangers hydrophobic, frost-resistant surfaces without pungent or hazardous sol-gel byproducts.

An AC-polarized metal oxide bed removes chlorine impurities from epoxy resin below 800 ppm with lower energy use than distillation.

Separating carbonylation solvent before polymerization lets EO-to-PPL production use THF upstream without poisoning polymerization catalysts.

Membrane dehydration, catalytic impurity conversion, and reactive distillation raise trioxane purity while cutting corrosion, blockages, and energy use.

Compressed gas recycled from a downstream reactor moves polymer between gas-phase stages while cutting entrained gas, plugging risk, and gas-handling cost.

Nickel-copper-zinc ferrite on hollow porous carbon spheres boosts 2.45 GHz microwave heating speed, temperature, and aging resistance.

A core-skin polypropylene bead structure lowers steam pressure and energy use while preserving fusion quality, strength, and surface finish.

A resin, silica, and titanium dioxide coating builds a stable micro-nano surface that preserves heat exchanger drainage over long use.

A two-stage hydrogenated petroleum resin blended with homo-polypropylene improves BOPP cigarette film stiffness while controlling shrinkage and VOCs.

Continuous slurry quenching, granulation, and extraction prevent sulfur lump clogging while improving purity, thermal stability, and yield.

Using steam in the final rectifier reboiler stage reduces fouling sensitivity while preserving heat recovery in C4 butadiene separation.

Cold sintering at 200–400°C prevents borate decomposition while TiO2 adjustment brings resonance frequency stability near zero.

Cooled vinyl acetate absorbs ethylene in a connected heat exchanger, improving polymerization heat removal while limiting scale adhesion.

Segmented rectifier reboilers use solvent heat recovery upstream and steam heating last to limit fouling and stabilize C4 separation.

This case combines one rectification column with parallel reactive columns to cut equipment costs while producing methoxide mixtures.

Controlled B:C ratios, rare earth oxide, and 980 nm laser sintering address uneven particles and impurities in boron carbide.

A two-step reaction and reactive distillation process reaches full boric acid conversion while reducing energy demand and thermal stress.

Merging reaction and separation in reactive distillation columns reduces energy consumption while maintaining product purity.

Integrated zeolite alkylation reduces benzene consumption and toxic by-products while maintaining high yield.

Diisocyanate flushing dissolves 1,3,5-trimethyl isocyanurate crystals in distillation coolers, preventing clogging and extending reactor service life.

Segmented reactor zones control mixing intensity to accelerate alkylation conversion while preventing product isomerization.

A water-based paint composition uses core-shell microgel and dimer-modified polyester resins to form durable films without intermediate drying.

A polyphenylene ether composition uses a polysiloxane block copolymer to balance flame retardancy and melt flow.

Gas phase photochlorination of pyridine with trifluoromethyl chlorobenzene eliminates wastewater from liquid phase purification steps.

Sulphuric acid reduces water content in hydro(chloro)fluoroolefin streams, minimizing product degradation and hazardous waste.

Pre-drying absorber removes excess water from humid air using weak sulfuric acid to prepare gas streams.

Merges anionic and radical polymerization steps into one integrated system, eliminating separate finishing sections and simplifying off-grade management.

Thermocompression bonding with a polyolefin sheet eliminates adhesive contamination during laser wafer division, preserving device chip quality.

Vacuum gas oil hydrotreating enables efficient crude-to-chemical conversion, reducing energy intensity while maximizing olefin yields.

Cooling ethylene slurry with a first coolant at 29°C or higher maintains consistent heat removal in polymerization reactors.

Recycle methyl ethyl ketone oxime purge upstream of hydrolysis to stabilize concentration and prevent hydrazine decomposition.

A polymerization unit with a shared heat exchanger reactor system featuring unidirectional parallel flow paths eliminates dead zones and cooling inhomogeneity.

High functional aromatic polyester polyols resolve the viscosity-functionality trade-off, eliminating polyether blends to reduce smoke density in foams.

Three reactive distillation columns recycle streams to reduce energy requirements in diaryl carbonate synthesis.

A recuperative heat exchanger positioned between the central and reaction chambers manages thermal transfer within a steam reformer.

Grafting beta-cyclodextrin onto highly-branched cyclodextrin via polyacrylic acid merges embedding capacity with rapid absorption.

A shell and tube heat exchanger uses a shroud distributor with angled cutouts to direct feed gas flow across the tube sheet.

Variable-speed driving means adjust pump rotational speed to circulate adsorbent streams, eliminating pressure drops from traditional control valves.

Kinetic mixing particles agitate the boundary layer to convert conductive heat transfer into convection.

Low-defect graphene and inorganic filler match packaging thermal expansion to eliminate stress and extend service life.

A two-layer reactor inner wall uses a chromium-nickel-silicon alloy to protect against corrosive process gases during deposition.

Perfluoropolyether additives bridge HFC refrigerants and mineral oils, resolving poor miscibility that causes compressor wear and energy loss.

A method produces silicon carbide using non-metallic components from waste circuit board cracking residues.

Bulk polymerization of trans-1,4-butadiene-isoprene rubber using supported titanium catalysts.

Adding amino acids initiates a Maillard reaction that selectively reduces formaldehyde concentration while preserving hydroxyacetaldehyde levels.

A common C6 solvent enables integrated polymerization and halogenation, eliminating intermediate stripping steps to reduce energy consumption.