Heterogenous Catalyst Chemical Elements TRIZ Cases

Solid-solutionizing additive metals into a cerium-lanthanide carrier boosts ruthenium dispersion and activity for ammonia synthesis under milder conditions.

Segmented meso and macropores in extruded titania boost metal loading and diffusion while maintaining surface area for Fischer-Tropsch synthesis.

Composite metal oxide supports boost ruthenium catalyst activity, reducing energy consumption in ammonia synthesis.

Optimizing the cerium to iron ratio in a mixed metal oxide catalyst resolves the trade-off between manufacturing cost and attrition resistance.

Replacing platinum with zinc oxide and adding ceria stabilizers cuts manufacturing costs while maintaining high catalytic activity.

A copper-aluminum composite oxide catalyst structure enables selective alcohol production from biomass feedstocks.

Composite base metal catalysts achieve high ammonia conversion rates below 450°C, reducing reliance on expensive noble metals.

Two-step co-precipitation creates a Mo-Bi rich surface on the catalyst, enabling high 1,3-butadiene selectivity at lower temperatures.

Spherical alpha-alumina supports enable precise diameter control while suppressing amorphous carbon formation during catalytic growth.

Fluidizing a chromium silica catalyst bed with controlled gas flow during calcination optimizes support characteristics and melt index potential.

Sulfate salts transfer oxygen to saturated hydrocarbons, enabling oxidative dehydrogenation while reducing energy consumption and COx emissions.

Replacing nitrate roasting with basic carbonate decomposition eliminates toxic waste gas while improving conversion rates and primary amine selectivity.

Selective washing removes sulfur from ODH catalysts, reducing water consumption and preventing particle loss during large-scale synthesis.

Replacing platinum with a cerium-lanthanum-manganese oxide system cuts production costs while maintaining high combustion efficiency.

ZrO2/Co3O4 nanocomposite catalysts convert methane to alcohols via electrochemical oxidation at ambient pressure, bypassing high energy costs.

Integrated first catalyst removes boron and sodium impurities from ethane feed, preventing secondary catalyst deactivation and maintaining ethylene yield.

A composite ferrite catalyst with specific metal ratios enhances butylene conversion to butadiene.

Optimized steam and oxygen ratios in a zinc-ferrite catalyst resolve selectivity and yield contradictions, achieving over 92% butadiene purity.

Composite spinel catalyst with alpha-iron oxide enhances butadiene selectivity while resisting carbon deposition to extend operational life beyond 6,000 hours.

Optimized tetralobe geometry balances high lateral compressive strength against low pressure drop during SO2 oxidation.

Steam and oxygen aftertreatment increases the active M1 phase fraction in metal oxide catalysts, resolving stability deterioration at low oxygen concentrations.

Hydrothermal treatment at atmospheric pressure with gaseous byproduct removal improves catalyst reproducibility and ethylene conversion.

A composite outer peripheral coating member containing titanium oxide, zirconium oxide, and niobium oxide particles forms a durable layer on ceramic substrates.

A blended catalyst composition combining manganese tungstate and rare earth oxides to enhance ethylene selectivity during methane conversion.

Post-calcination palladium impregnation on a Mo-V-Te-Nb-O support enables undiluted ethane oxidative dehydrogenation, eliminating inert gas dilution costs.

Optimized bismuth molybdate catalysts using specific iron, cobalt, cesium, and potassium ratios improve yield while reducing hot spot temperatures.

A catalyst system uses an oxygen carrier material to convert hydrogen into water via lattice oxygen transfer.

Manganese and titanium additives in iron oxide catalysts maintain activity at low steam ratios, reducing energy consumption.

Optimized multi-metal catalyst composition improves 1,3-butadiene selectivity while reducing zinc consumption during oxidative dehydrogenation.

A nickel tungsten bulk catalyst forms oxidic particles via hydrothermal reaction to drive hydrotreatment processes.

Composite oxyborates with magnesia-phosphate cement resist catalyst deactivation by poisons while maintaining high conversion rates.

A copper catalyst on ceria carrier enables selective hydrocarbon oxychlorination.

Electrodeposited cobalt sites on nickel foam provide atomic hydrogen to reduce nitrate to ammonia, eliminating CO2 emissions from Haber-Bosch synthesis.

A catalyst composition uses specific metal loadings on a high surface area support to enhance reaction performance.

Doped metal oxide catalysts enable high C2 selectivity and methane conversion at temperatures below 750°C.

Surface-applied MoV2O8 on a Ti-W carrier boosts mercury oxidation while suppressing SO2 conversion at high temperatures.

Composite inorganic oxide carrier maintains desulfurization activity under high temperature and pressure.

Nitride carriers conduct heat and resist abrasion, preventing sintering during synthesis.

A redox catalyst uses lattice oxygen to selectively combust hydrogen during dehydrogenation.

A process converts alkanes to alkenes using recyclable mixed oxide and perovskite catalysts at 350 to 700°C.

Cubic lattice mixed oxide catalysts enable selective oxidation, reducing CO2 and NOx emissions while increasing olefin yield.

Mixed metal oxide catalyst with alkali metal tungstate promoter achieves 82-93% C2+ selectivity, suppressing carbon oxide byproducts.

A ruthenium-barium core-shell structure prevents nanoparticle agglomeration during ammonia synthesis.

Agglomerated oxidative dehydrogenation catalysts utilize Nb2O5 hydrate binders to form extruded particles with controlled pore distribution.

A base metal catalyst enables hydrogen cyanide production from methane and ammonia.

Intermediate reactor pressure suppresses carbon deposition, extending catalyst lifetime during high-temperature ethanol dehydration.

Inert gas stripping removes hydrocarbons from used catalyst, preventing steam-induced deactivation and maintaining propylene yield.

Tungsten bronze mixed oxides resolve activity and selectivity trade-offs in propane oxidative dehydrogenation by isolating active sites.

A rhenium-titania catalyst uses controlled pH impregnation to optimize metal deposition and enhance methanol synthesis activity.

Platinum-ruthenium-bismuth catalyst converts formic acid to hydrogen at ambient conditions, eliminating carbon monoxide poisoning in fuel cells.