Physical/Chemical Process Catalysts TRIZ Cases

Replacing ozone-depleting bromo-fluoroalkanes with fluoroalkyl iodides maintains product yields while eliminating environmental hazards.

Potsherd slurry with 26-34% water content enables compulsory drying of honeycomb coatings, eliminating cracks and reducing manufacturing time.

Band electrodes on a resistive ceramic honeycomb prevent excessive current flow while ensuring uniform heat distribution and reducing thermal stress.

A chiral iridium complex catalyzes asymmetric hydrogenation of ketone intermediates to produce high-purity enantiomers.

Induction heating coils warm embedded metal wires in catalytic converters, rapidly reaching light-off temperature to reduce cold-start emissions.

Micro-rough antiviral varnish reduces virus persistence on banknotes by promoting rapid evaporation and active substance diffusion.

A conveyer apparatus maintains wet mixture moisture content within 3% change using a sealed casing and partition member.

A honeycomb drying block with a porous protective layer absorbs moisture inside storage containers.

Adding trace oxygenates to aromatization processes prevents platinum sintering and extends catalyst life.

A honeycomb structured body uses right triangular filling bodies at outermost cell corners to secure structural strength while maintaining high aperture ratios.

Visible light absorption by layered MoS2 nanostructures overcomes the limited solar spectrum constraints of traditional TiO2 photocatalysts.

Pyrolyzing fluorine-containing methyl ether using an alumina catalyst with chlorine content of 1.0 wt % or less to produce high-purity fluoromethane.

Variable height distribution creates localized resistance differences for uniform heating, resolving catalyst activation delays in hybrid vehicles.

Segmented conductive honeycomb structure generates localized heat to activate catalysts efficiently.

Converts dilute ethylene and benzene into heavier hydrocarbons via UZM-8 alkylation, eliminating hydrogen consumption and octane loss.

A porous silicon carbide honeycomb structure achieves rapid temperature rising through controlled material composition and specific microstructure.

Segmented catalyst carriers with perforated walls and a cooling skirt resolve the contradiction between large tube productivity and temperature control.

Calcined wood ash catalysts enable single-pot dialkyl carbonate synthesis, resolving the trade-off between high catalytic activity and difficult separation.

Electrospinning halogenated polymer solutions with metal catalysts produces ultrafine porous graphitic carbon fibers.

Specific geometric ratios minimize thermal stress on plugged portions, preventing cracks while maintaining filtration durability.

Solid phase polymerization raises polyamide resin viscosity without cellulose decomposition, preserving color tone and mechanical strength.

An oxynitride protection layer shields a visible light-absorbing semiconductor substrate, reducing potential barriers that impair water splitting efficiency.

Photocatalytic films on electrodes dissociate oxygen using ultraviolet discharge light, eliminating nitrogen oxide by-products from high-purity oxygen feed.

Biodegradable carbon sources replace phenolic resins to form porous silicon carbide structures with controlled porosity.

Silicon carbide honeycomb structure generates heat through controlled volume resistivity, preventing excessive current flow in high-voltage circuits.

A honeycomb catalyst structure stabilizes methanol radical conversion through self-regulated thermal control.

Integrated catalytic oxidation converts mixed H2S and ammonia streams into hydrogen and sulfur, reducing equipment footprint and nitrogen oxide emissions.

Amorphous silica-alumina replaces corrosive liquid acids to boost conversion rates and reduce equipment damage during cyclohexanone condensation.

Segmented protrusions on partition walls prevent exhaust gas stagnation at high flow rates while increasing geometric surface area for better catalyst contact.

Synthesizes long alpha-omega di-functional linear ethers using monounsaturated alcohols and dialkyl carbonates with hydrotalcite catalysts.

Perforated vertical cylinders and expandable connectors manage thermal stress while improving fluid distribution homogeneity.

A heat conversion unit transfers conductive thermal energy to a thin metal catalyst for graphene wire synthesis.

A silicon carbide honeycomb structure incorporates lateral electrodes and an intermediate layer to generate heat through electrical resistance.

Direct reduction of 2,4,5-trifluoromandelic acid produces the Sitagliptin intermediate 2,4,5-trifluorophenylacetic acid.

Water-soluble organometallic precursors convert to active catalysts that hydrolyze isocyanic acid into ammonia within diesel exhaust streams.

Increasing catalyst pellet aspect ratio and void fraction delays fine accumulation, reducing pressure drop increase rates during aldehyde hydrogenation.

Metal phosphate catalysts convert biomass-derived cellulose and sugar monomers into 5-hydroxymethylfurfural through controlled acid site interactions.

Nesting the honeycomb body within the silencer volume eliminates abrupt cross-section changes that cause pressure losses.

Supermacroporous alkali aluminosilicate catalysts capture inorganic impurities, extending hydrogenation catalyst life and preventing clogging.

Solid phosphoric acid catalyst with high water content enables selective olefin dimerization while suppressing polymeric by-products.

Anhydrous aluminum halide catalyst accelerates halogen exchange between chlorosilanes and iodide salts, resolving slow reaction rates in iodosilane production.

A honeycomb structure uses a metal silicon and oxide bonding material to enhance thermal conductivity.

Laminated band-like electrodes in a resistive ceramic honeycomb scatter current flow, preventing excessive heat that damages power source circuits.

Distinct foil roughness suppresses unwanted diffusion bonding while ensuring effective solder flow for reliable exhaust gas connections.

Selective alumina coating on metal silicon binder surfaces prevents volatile oxidation and preserves porosity in silicon carbide filters.

Chemical precipitation replaces mechanical grinding to produce high-purity magnesium oxide aggregates, preventing impurity contamination during synthesis.

A flat air purifier uses dispersed light sources to activate a mesh photocatalyst within a meandering passage.