Physical/Chemical Process Catalysts TRIZ Cases

Incorporating nanoscale nitrided transition metal oxides into cigarette components converts harmful smoke gases, addressing insufficient filtration efficiency.

A cordierite honeycomb structure incorporates alumina sources and fine boehmite to achieve low thermal expansion coefficients.

Knit wire mesh bearing elements provide radial and longitudinal support to prevent monolith displacement under high vibration.

A honeycomb structure uses different opening ratios at inlet and outlet sides to balance flow efficiency with mechanical strength.

Ultrathin titania coatings activate via visible light, removing UV lamp costs and safety hazards.

Controlled electrical resistivity in the porous ceramic body prevents excessive current flow and electrode deterioration during exhaust gas purification.

Pass-through holes at partition wall intersections interconnect cells to reduce pressure loss while maintaining particulate trapping efficiency.

Undeposited regions in upstream partitions lower permeation resistance to facilitate fluid passage through honeycomb filters.

Converts high-water organic waste into hydrocarbon fuels using pressurized liquid water and dual catalysts, eliminating drying energy costs.

A silica-zirconia catalyst reduces glycidyl ester concentrations in edible oils during continuous processing.

Curved projecting portions on honeycomb partition walls distribute catalyst uniformly to improve purification performance while maintaining low pressure loss.

Segmenting the reactor with intercooling zones reduces hottest-spot temperatures, extending catalyst life and lowering energy consumption.

A seal plate fills the radial gap between a honeycomb catalytic unit and the reactor housing to ensure direct fluid contact with the catalyst surface.

Silicon-cordierite composite sintered body generates heat via Joule heating while maintaining dimensional accuracy in high-temperature oxidation environments.

Divergent projecting portions on honeycomb partition walls increase geometric surface area while inhibiting pressure loss from catalyst accumulation.

Conical catalyst support in a multi-tube shell and tube reactor maintains isothermal operation to prevent hot spots and boost yield.

Nickel-aluminum coatings inhibit metal catalyzed coke formation and sulfidation corrosion, extending equipment life.

A catalyst unit design uses a bearing mat gap dimension calculated from mat density to secure the ceramic body within the housing.

Inject iron compounds into the combustion zone to sequester gaseous phosphorus before it reaches the selective catalytic reduction catalyst.

Milled plate screens withstand harsh chemical and mechanical stress, preventing screen failure and catalyst loss in radial flow reactors.

Purging reactors with hydrogen prevents catalyst deactivation during restart, maintaining high CO conversion rates and operational efficiency.

A honeycomb structure uses a porous circumferential wall with a penetrating coat layer to reinforce the substrate.

Purifies bio-based acrylic acid using extraction, drying, distillation, and melt crystallization to achieve glacial purity levels.

Higher resistance in the non-arrangement region limits current to end metal electrodes, preventing overheating from cracks in the arrangement region.

A pentacyanocobaltate(II) anion catalyst breaks glycosidic bonds in cellulose to produce monomeric carbohydrates at room temperature.

Dimolybdenum carbide nanostructures on graphene lower activation energy, reducing overpotential for efficient hydrocarbon production.

Larger boundary reinforced parts increase intersection rigidity to suppress thermal stress concentration near partition walls.

Replacing copper iodide with ferrous chloride or zinc iodide lowers production costs while maintaining high reaction yield and selectivity.

Liquid phase dehydration of gamma,delta-unsaturated alcohol with an acidic catalyst reduces heat source requirements and prevents decomposition.

Eliminating pore formers via controlled particle size distribution stabilizes porosity and sharpens pore diameter distribution in continuous mass production.

Bisphosphite ligands achieve high terminal aldehyde selectivity while maintaining hydrolysis stability in rhodium-catalyzed reactions.

Optimized pore diameter distribution reduces pressure loss while maintaining mechanical strength and trapping performance.

A bifunctional alumina catalyst dehydrates ethanol and n-propanol mixtures directly, eliminating costly separation steps and reducing energy consumption.

Sulfated titania catalyzes esterification between diacids and glycerol to synthesize biodegradable polyester elastomers with enhanced mechanical properties.

Titanium zeolite drives propylene epoxidation with hydrogen peroxide, achieving high selectivity and yield while simplifying downstream distillation.

Thickened peripheral walls in a sintered SiC honeycomb filter resolve the contradiction between low initial pressure loss and high structural strength.

Rounded corners on elongated polygonal channels prevent particulate accumulation and lower pressure drop in SCR catalyst supports.

Foaming material particles expand and evaporate to form micro pores in ceramic bonding layers.

A droplet discharging device combines a pneumatic unit and an electronic pipette to dispense fluids across wide flow rates.

MoSx carbon black nanocomposite achieves platinum-level hydrogen evolution performance while simplifying preparation by replacing organic solvents with water.

Magnesium enhances the cobalt alloying limit in a Pt-Co-Mg catalyst, resolving insufficient initial activity caused by reduced platinum content.

Ethyleneamine derivatives neutralize acidic catalysts in phenol streams at elevated temperatures.

Limiting large ceramic particles in adhesive layers prevents vibration cracks and maintains catalyst conversion performance.

A honeycomb exhaust gas purifying filter deposits a catalytic layer thicker around narrow pore sections to enhance hydrocarbon removal efficiency.

Optimized porosity ratios in porous partition walls balance high zeolite loading with low pressure loss, preventing cell clogging.

Increasing boundary wall thickness to 150% of circumferential walls prevents stress concentration and cracking in ceramic honeycomb structures.

Converts glycerol to propylene glycol via acetol using a copper catalyst, reducing ethylene glycol impurities and energy costs.

A cement-based photocatalytic paint uses low-viscosity cellulose and fluidizing agents to improve application characteristics.

Lattice-integrated nitrogen strengthens electrostatic interactions with ionomers, resolving corrosion susceptibility and ensuring homogeneous distribution.