Physical/Chemical Process Catalysts TRIZ Cases

A porous ceramic honeycomb body with a high porosity layer resists ash and soot accumulation to maintain consistent filtration efficiency.

Varying cell densities across radial zones reduces back pressure by matching wall thickness and pore size to local exhaust flow profiles.

Calcined zirconium phosphonate catalysts achieve 100% selectivity in dimethyl carbonate synthesis, preventing undesired by-products like dimethyl ether.

Angled surface structures on a metallic honeycomb layer enhance catalytic contact efficiency while minimizing pressure loss across the exhaust system.

A second parallel tube creates a dedicated high-velocity flow path through the heat exchanger shell to resolve low heat transfer coefficients in central zones.

Tetraalkyl titanate catalyst recycling via decanter separation maintains product quality.

DMC catalyst preserves eugenol terminal double bonds during alkoxylation, preventing isoeugenol formation and ensuring food-safe polyethersiloxane stability.

Longer central plugging portions in a honeycomb filter improve erosion resistance against foreign matter collisions without increasing overall pressure loss.

Dual-peak pore size distribution in a ceramic honeycomb structural body increases specific surface area to improve exhaust gas purification efficiency.

Dynamic sunlight adjustment prevents catalyst damage from excessive exposure while maintaining high reaction efficiency through real-time environmental control.

A solid solution of gallium nitride and zinc oxide narrows the band gap to 2.20 eV or less.

A bio emulsion fuel manufacturing apparatus uses an ionization catalyst group to convert mixed vegetable oil and pretreated water into stable fuel.

A reduction electrode active layer composition uses ruthenium, platinum, and lanthanide precursors to form a durable coating on metal substrates.

A metal oxide-supported boron trifluoride catalyst facilitates fluorinated hydrocarbon synthesis via ether complex mediation.

Bi-metallic modified zeolite catalyst converts pyrolyzed black liquor gas into upgraded bio-oil containing benzene, toluene, and xylene.

Segmented radial and tangential webs with inclined transition components boost isostatic strength in thin-walled exhaust filters.

Brief startup voltage pulses burn soot deposits from support elements, preventing electrical arcs that destroy mechanical connections during subsequent heating.

A diffuser assembly disperses fly ash aggregates into smaller particles using specific aperture geometry.

Alkali metal catalysts replace nitrogen sources in sugar pyrolysis, eliminating toxic by-products while enhancing hydrogen peroxide decomposition.

Horizontal modular catalyst units integrate with vertical filter bags to redistribute gas flow within a single casing.

Conducting the reaction at -70°C to -11°C resolves selectivity and productivity trade-offs, achieving yields above 35%.

A method produces microwave-reduced graphene oxide using a reducing agent and catalyst under air.

Replacing Fremy's salt with ozone eliminates waste streams while maintaining high yield during synthesis.

Varying cell section areas reduce pressure loss and prevent circumferential cracks in diesel exhaust filters.

Phosphonic diesters mediate thermal curing to extend potlife while enabling three-dimensional network formation.

An Al-Si alloy core particle coated with an alpha-Al2O3 oxidized film provides stable latent heat storage.

Borosilicate polarizing glass containing dispersed metallic copper particles provides high extinction ratio and low insertion loss.

Segmented contact points prevent unwanted diffusion bonds during high-temperature soldering.

A transparent plate coated with titanium dioxide nanoparticles activates photocatalytic water purification using an ultraviolet light module.

Segmented indirect heating separates carbonate-derived CO2 from combustion emissions, lowering the carbon footprint of magnesium production.

A carbon-based catalyst converts hydrogen sulfide and carbon dioxide into methane and solid sulfur under mild reaction conditions.

Thermal plasma evaporates copper precursors to deposit fine particles onto titanium oxide substrates, eliminating liquid phase synthesis costs.

Non-aqueous bismuth trifluoride reactions replace aqueous methods, eliminating contamination and enabling quantitative yields for battery electrolytes.

Particle retention devices with widening flow channels reduce impinging fluid velocities in radial flow reactors.

Inward protrusions in partially clogged cells boost NOx purifying performance by promoting gas diffusion without increasing pressure loss.

CVD deposition enhances mechanical strength of ultrasonically assembled carbon nanotube sponges, resolving insufficient elastomeric properties.

A baffle obstructs fluid flow to reduce jetting and achieve a more even velocity profile, minimizing corrosion and erosion of the profile wire screen.

Stress release portions in the peripheral wall layer mitigate thermal shock on ceramic honeycomb structures.

Curved plugging pits redirect fluid flow to reduce stagnation, lowering pressure loss and preventing soot clogging in diesel particulate filters.

Curved transition in channel flow director creates controlled turbulence, reducing pressure drop while enhancing heat and mass transfer.

Boron carbide support material adsorbs polypeptides at controlled pH levels, eliminating acidic solvents that denature proteins.

Structured diamond microreactor enables continuous photocatalytic reduction, resolving diffusion limits and high energy costs.

Replacing ammonium hydroxide with alkali metal hydroxides eliminates ammonia waste while maintaining uniform phase distribution and reactivity.

Organic ligands coordinate with silver ions to resolve stability and reactivity contradictions, enabling delayed reduction of catalytic metals.

In situ grown W18O49/CoO nanowires on nickel foam overcome high overpotential of non-noble metals.

A microporous carbon catalyst removes oxygen from pyrolysis vapors before condensation.

UV-driven TiO2 redox reactions remove impurities from wild hemp, resolving the trade-off between extraction yield and product purity.

Tetracyanometallate double metal cyanide complexes catalyze propylene oxide copolymerization without forming propylene carbonate by-products.

An integrated tubular reactor and stripper remove ammonia to overcome equilibrium limitations in urea alcoholysis.