Molecular Sieve Catalysts TRIZ Cases

Segmented layers store NOx at low temperatures, resolving cold start conversion limits without heating.

A composite hydroalkylation catalyst uses non-noble metals and molecular sieves to convert benzene into cyclohexylbenzene.

High nanopore volume stabilized Y zeolite increases heavy middle distillate yield while reducing gas make and improving hydrogen efficiency.

Bifunctional bimetallic ruthenium catalysts convert lignin into hydrocarbons via hydrogenolysis mitigation.

A catalytically active material disperses platinum clusters under 1 nm on a molecular sieve to enhance hydroisomerization activity.

Acidic silica sol and polymeric extrusion aids create plasticized mixtures that avoid expensive silicone resins while maintaining large pores.

SSZ-105 molecular sieve combines ERI and LEV phases to enhance selectivity in gas separation and organic conversion reactions without complex synthesis control.

A contaminant-tolerant dewaxing catalyst with a silica-to-alumina ratio of 100 or less maintains activity in sour service diesel fuel production.

Replacing platinum group metals with sulfur-resistant base metal catalysts prevents poisoning while regenerating soot.

Segmented catalyst stages in a wax oil hydrocracking process resolve the contradiction between product specification flexibility and device complexity.

Zeolite catalysts process mixed olefins into cumene, eliminating ethylene separation costs.

Composite zeolite-alumina support with specific metal components overcomes low aromatic-saturation activity limits in existing hydrocracking processes.

A rare earth Y molecular sieve preparation method using a dispersing agent to improve particle dispersion and ion localization.

Silicon-based zeolite catalyst prevents deactivation by trace impurities, maintaining high reaction selectivity and reducing costly precious metal consumption.

A rare earth modified TON molecular sieve catalyst enables selective paraffin isomerization.

A catalytic article uses a palladium and ceria molecular sieve to convert exhaust pollutants while resisting sulfur poisoning.

Pre-adsorbed organic amine stabilizes H-type mordenite catalysts, preventing pyridine desorption that reduces activity and selectivity.

Hydrogenolysis bimetallic catalysts supported on zeolites convert n-butane to ethane and propane.

Inorganic fiber filter candles incorporate zeolite additives to enhance radial pressure stability and bending moment resistance.

Segmented heating of gel precursors produces titanium-MWW zeolites, reducing lengthy high-temperature crystallization times.

Lowering reaction temperature extends MWW zeolite catalyst life and reduces energy consumption while maintaining high p-xylene selectivity.

Synthesizing MWW molecular sieves using poly(diallyldimethyl ammonium) cation to boost external surface area and micropore volume.

Synthesizes SSZ-98 zeolites using 1,3-dicyclohexylimidazolium cations as a structure directing agent.

A method for crystallizing aluminosilicate zeolites adds an alumina source to a pre-heated mixture of silica and mineralizing agents.

P2O5 and La2O3 modified zeolites maximize light olefin yield while maintaining high conversion rates in hydrocarbon cracking.

Zeolitic materials replace acidic resins to optimize selectivity and simplify regeneration cycles.

Intimately mixed unsupported metal oxide and zeolite resolve reliability-productivity contradictions, enabling ppm-level sulfur removal.

Acidic EMT zeolite catalyst replaces rhodium in dimethyl ether carbonylation, solving low activity and stability issues.

Segmented channels isolate magnetic susceptor deposits from catalytic material to prevent poisoning while enabling uniform cold start conversion.

Catalytic conversion of dilute FCC dry gas ethylene to liquid fuels using impurity-resistant silica-alumina catalysts.

Cerium-zirconium mixed oxide suppresses ammonia over-oxidation above 350°C, maintaining high selectivity to nitrogen while preventing nitrous oxide formation.

A composite catalyst system converts biomass-derived oxygenates into alpha, omega-diols via selective hydrodeoxygenation.

Mesoporous zeolite supports confine catalytic nanoparticles within controlled pore structures to maintain active sites.

Phosphorus modification of zeolite catalysts improves monoalkyl ether yield and production rates despite increased preparation complexity.

A two-zone reaction process converts syngas into methyl acetate and acetic acid using sequential metal and solid acid catalysts.

A porous aluminum silicate support disperses metal oxide active components to facilitate efficient heat dissipation during catalytic reactions.

A non-noble metal catalyst achieves high current density through carbonized sugar and guanidine precursors.

A carbon-modified nickel catalyst selectively hydrogenates phenylacetylene to styrene under controlled reaction conditions.

ZSM-5 crystals with edge-enriched silica-to-alumina ratios reduce xylene losses during ethylbenzene dealkylation.

A chelating agent added to aqueous hydrogen peroxide protects titanium zeolite catalysts during continuous olefin epoxidation.

Upstream zeolite adsorption extends catalyst life and reduces by-products in alkylation processes.

A bifunctional solid catalyst converts plastic feed into aromatic compounds using microwave radiation.

Delayed calcination preserves zeolite Y mesoporosity, boosting middle distillate selectivity in hydroconversion.

Hydrocracking catalyst with IZM-2 substrate converts paraffinic feedstocks into middle distillates.

Replacing fluoride-based synthesis with alkaline treatment simplifies catalyst preparation while maintaining high product selectivity for industrial scale-up.

A nickel-copper catalyst mixture on a non-reactive carrier provides supplemental oxygen storage and water-gas-shift activity.

Sulfurized ZSM-5 catalysts convert synthesis gas to C5-C12 hydrocarbons, suppressing long-chain waxes.

Steaming removes trivalent elements from CHA-AFT zeolite intergrowth, extending methanol-to-olefin time on stream.