Molecular Sieve Catalysts TRIZ Cases

Dual-function catalysis produces electrically insulating methylparaffins that enable direct cooling of batteries and power components.

Positively charged metal clusters anchor in boron-substituted zeolite pores to preserve NOx and CO activity under hydrothermal heat.

Pre-mixing active metals into modified USY zeolite and binder improves dispersion, attrition resistance, pore structure, and hydrocracking yield.

Porous NiSe2 foam with layered dichalcogenides replaces platinum in HER catalysts, delivering strong water-splitting activity at lower cost.

A mixed iron chabazite and iron beta zeolite catalyst improves high-temperature NOx conversion and hydrothermal stability in process gas streams.

A pure silicate ZEO-1 framework with titanium and 3D extra-large pores avoids germanium cost and stability limits in catalysis and adsorption.

A boron-mediated synthesis route raises SSZ-121 acidity by preventing amorphous phases and preserving more aluminum acid sites.

Phosphor beads support TiO2 and transition metal particles to extend photocatalysis beyond UV light and simplify air filter integration.

Supramolecular templating and base-mediated reassembly create cubic ordered zeolites with controlled mesopores, improving diffusion and reducing coking.

A high-porosity SCR catalyst with platinum or palladium cuts ammonia slip while sustaining NOx conversion across wide exhaust temperatures.

Using a boron pathway and a tailored structure-directing cation, this case creates SSZ-117x for reforming and adsorption.

A DiQ-templated CIT-16P framework converts to SAPO-17 while preserving framework integrity and extending methanol-to-olefins catalyst life.

Alkaline-treated mesoporous zeolites dewax hydrocarbon feeds by lowering cloud and pour points while suppressing cracking and diesel loss.

A vapor-conversion coating route forms hierarchical zeolite layers on supports without binders, reducing powder waste and preserving activity.

A tuned Y/Beta zeolite ratio and lattice constant raise naphtha selectivity, lower activation temperature, and keep activity on less reactive feeds.

A boron-pathway synthesis preserves crystallinity, then replaces boron with aluminum to raise SSZ-117x acid sites for conversion and sorption.

A high-silica zeolite and noble metal catalyst improves selective dewaxing, raising base stock yield while lowering pour point and cost.

A Cu/Ag-lanthanide silica catalyst converts alcohols directly to C3+ olefins, cutting dehydration and separation energy while limiting ethylene.

A staged hydrotreating and hydrocracking route raises the heavy-to-light hydrowax ratio while maintaining base oil yield from heavier feeds.

Hydrothermal growth on pretreated γ-alumina creates nano zeolite catalysts with better metal-acid site proximity, lower agglomeration, and lower zeolite use.

Direct ester hydrogenation with a Pt-Ru zeolite catalyst improves ether selectivity while avoiding harsh conditions, toxic inputs, and olefin byproducts.

Acid centers shifted into large pore channels help this modified Y-type molecular sieve curb secondary cracking and raise liquid product yield.

Multiple concentric vapor and catalyst zones improve catalyst use, limit coking, and reduce downtime in endothermic radial flow reactors.

Bolaform-directed hydrothermal growth forms hierarchical zeolite nanotubes with high surface area and porosity for catalysis and chemical separations.

A zeolite catalyst with intracrystalline cations, alkali metal, and ruthenium sustains low-temperature ammonia dehydrogenation with less Ru.

Using low-APHA titanium alkoxides and alkaline synthesis limits extra-framework TiO2, improving TS-1 epoxidation selectivity and stability.

Microwave drying with platinum-gallium zeolite improves C4-C7 alkane aromatization by raising aromatic selectivity while limiting coke.

A layered SSZ-91 and SSZ-32X catalyst sequence lowers base oil pour and cloud points while limiting over-dewaxing and yield loss.

Cold-start NOx capture is improved by a CHA zeolite catalyst using transition and rare earth metals to boost low-temperature storage and stability.

Insoluble metal precursors enable SCR catalyst washcoats to load active metal during calcination while cutting energy use and avoiding ammonia slip catalyst poisoning.

Oxygen oxidation with VPO or Co-Mn catalysts produces adipic and dodecanedioic acids at high yield without nitrous oxide or extra separation.

A layered Pt/Pd and Mn-zeolite catalyst raises low-temperature NO2 for SCR while lowering CO and HC light-off in lean diesel exhaust.

Rapid AFX zeolite synthesis with transition metal exchange improves low-temperature NOx conversion and hydrothermal aging resistance.

A new SSZ-52x zeolite uses intergrown SFW/AFX frameworks and tuned composition to maintain NOx conversion after high-temperature aging.

A two-stage hydrofinishing route uses temperature-shifted noble metal catalysis to cut base oil aromatics while removing sulfur and nitrogen.

Spray-dried alkali activation and in-situ carbonization shorten aluminosilicate depolymerization and improve carbon template use for hierarchical sieves.

Using 1-ethylpyridinium as a structure-directing agent enables high-purity *MRE sieves with stronger dewaxing selectivity and minimal cracking.

A nitrogen heterocycle additive with SSZ-91 raises base oil yield in hydroisomerisation without major process complexity changes.

A supported bimetallic oxide and solid acid route converts alkanes to aldehydes at lower temperature with higher selectivity and less CO2.

Hydrotreating and hydrocracking convert waste-plastic pyrolysis oil into cleaner n-paraffin-rich steam cracker feedstock with recycle and heat management.

Mesoporous OASA and microporous zeolite work together to crack heavy oil more effectively and raise middle-distillate yield below 400°C.

A distillation side draw is condensed and recycled to a second etherification reactor to keep ether concentration low and cut catalyst use.

An oxygenated heavy oil sump enables atmospheric-pressure biomass liquefaction to produce hydrophobic crude oil without catalysts or recirculation.

Cysteine-capped platinum nanoparticles enable water-soluble PHIP with high polarization, easy catalyst separation, and lower biotoxicity.

Co-feeding polyolefin with tyre rubber shifts pyrolysis toward single-ring aromatics and aliphatics while suppressing harmful PAHs in the oil.

Potassium-mediated crystallization enables high-aluminum MWW molecular sieves with fewer impurities, preserved structure, and scalable mesoporosity.

A guard-bed first reactor removes feed impurities before main etherification, limiting catalyst deactivation, corrosion, and water washing.

A two-stage inert-gas then oxygen heating route removes templating agents while preserving zeolite Beta crystallinity and catalytic activity.

Using alumina-coated silica sol and tailored directing agents, this case shows how smaller SSZ-81 crystals improve diffusion and conversion.

A three-step catalytic route upgrades propane, butanes, and pentanes into diesel by separating conversion and cetane improvement stages.

Coaxial electrospinning creates a multi-scale hollow molecular sieve fiber membrane that improves catalytic mass transfer, selectivity, and separation.

Conventional SCR and TWC struggle below 180–200°C; palladium-bearing AFX zeolite improves NOx storage and desorption.

Adjusting the platinum to rhodium weight ratio below one lowers material costs while maintaining exhaust gas purification performance.

Removing sodium ions from synthesis mixtures enables diquat-6 to direct ZSM-48 crystals into fibrous morphologies, resolving shape purity trade-offs.

Seed-assisted interzeolite transformation converts low-density parent zeolites into high Si/Al ratio frameworks without organic structure directing agents.

Solid solution charring adds an active agent and catalyst to biomass, raising conversion rates above 50% while reducing tar pollution.

Specific molecular sieve catalyst hydroisomerizes Fischer-Tropsch waxes to improve cold flow properties without separate dewaxing steps that cause yield loss.

Zeolite-supported nickel, ruthenium, and cerium catalyst decomposes high molecular weight bio-oil compounds into lower molecular weight products.

Binder-free zeolitic granulates eliminate pressure losses from inert binders while preserving macropore transport systems.

Iron or copper substituted zeolites sustain catalytic activity across 300 to 700 degrees Celsius, eliminating the need for costly exhaust gas cooling.

Adding organic acids to alcohol feeds poisons catalyst active sites, reducing aldehyde by-products and simplifying downstream purification.

Multiple seeding agent introductions in a tubular reactor produce zeolite crystals with controlled particle sizes.