Molecular Sieve Catalysts TRIZ Cases

ZIF-8 photocatalysts embedded in biodegradable nanofibers enable broad-spectrum disinfection while eliminating skin irritation risks from zinc oxide.

Synthesizing SSZ-108 molecular sieve using 1-butyl-1-methylpyrrolidinium cations as a structure directing agent for crystalline formation.

Supercritical carbon dioxide dissolves metal precursors for uniform adsorption onto zeolite pellets.

An MRT-type zeolite adsorbent retains hydrocarbons until catalyst activation, preventing premature desorption and unpurified emissions.

Optimizing MOR zeolite crystal size to 3 microns resolves the trade-off between catalyst structure ease and productivity, improving space time yields.

Jacket heating conductor element transfers thermal energy to exhaust gas via heat transfer surface formation, resolving cold-start emission challenges.

Adjusting alumina BET surface area to 210-350 m2/g resolves the contradiction between high isobutylene selectivity and excessive catalyst usage amounts.

Optimized zeolite beta acidity and USY ASDI reduce hydrogen consumption while boosting middle distillate yields.

Zeolite catalyzes beta-propiolactone ring-opening to produce acrylic acid, reducing reliance on propylene and lowering production costs.

A zeolite-supported cobalt catalyst uses a reduction-oxidation-reduction cycle to boost synthesis gas conversion activity.

Heterogeneous phosphorus distribution in a low phosphorus chabazite catalyst resolves the trade-off between catalytic activity and hydrothermal stability.

Segmented reaction zones with distinct catalysts lower energy consumption by enabling dimethyl ether recycling while maintaining high product purity.

Specific heat treatment of an IZM-2 zeolite catalyst improves isomerization selectivity while reducing hydrogenolyzing activity in middle distillates.

Refractory bridge networks deposited via aerosol on inlet surfaces improve filtration efficiency while reducing backpressure in diesel particulate filters.

In-slurry ion exchange positions divalent copper ions within chabazite zeolite pores to create a structured catalyst.

Electrospun fiber-based zeolite catalysts overcome low surface area limitations of conventional pallets by providing high catalytic activity.

Rhodium catalysts replace acid-based methods to produce super linear alkenyl arenes, avoiding carbocationic intermediates that cause branching.

A dehydroaromatization catalyst uses hydrothermal dealumination and molybdenum support to convert methane into aromatic compounds.

Oxidizing olefins with nitrous oxide yields carbonyl compounds that resolve water solubility and boiling point trade-offs in fuel additives.

Organic additive in silica-alumina catalyst boosts aromatic hydrogenation conversion activity by 3.2%.

Dual-zeolite co-extrusion improves selectivity and minimizes diesel loss during catalytic dewaxing of distillates.

Synthesizing SSZ-100 molecular sieve using a cationic nitrogen-containing organic structure directing agent.

Metal doping in pentasil zeolites reduces water adsorption while maintaining molded body strength for VOC adsorbents.

A ceramic particulate filter uses a porous catalytic coating on its outer surface to remove nitrogen oxides from exhaust gases.

Inorganic particle and silicone resin powder coatings on monolith articles maintain filtration efficiency during regeneration by preventing pore clogging.

A molecular sieve catalyst modified with phosphate ions and water-insoluble metal salts to enhance hydrothermal stability.

A metal catalyst maintains high catalytic activity by ensuring a metallic bond proportion of 40% or more on ultra-fine particles.

Ex-situ nitrogen treatment passivates zeolitic catalyst acid sites, preventing heat excursions during hydrocracking start-up.

Synthesizes SSZ-35 molecular sieves using a specific imidazolium dication as the structure directing agent.

Replacing expensive cyclic OSDAs with tetraethylammonium ions and seed crystals cuts production costs while maintaining high crystallinity.

Partially reduced metal oxide catalysts convert plant oils into renewable aviation fuel via selective hydrocracking.

A Cu-exchanged chabazite zeolite acts as a molecular sieve to separate hydrocarbons from ammonia in diesel exhaust streams.

Combining CuZnAl oxide with H-form zeolites resolves the contradiction between simple catalyst structure and low sulfur removal efficiency.

Flow-aligning portions with micro-holes prevent back-flow and bypass streams, narrowing residence time distribution to enhance mass transfer efficiency.

Hexamethylenetetramine precipitates hydrotalcite and reduces noble metal salts simultaneously on alumina carriers.

Metallic aluminium particles form a spatial heat-conducting lattice that removes reaction heat, preventing overheating and maintaining selectivity.

A zeolite catalyst converts alkyl lactate into alkyl acrylate without organic structure directing agents.

A production process for oxide catalysts controls particle size distribution to stabilize performance during vapor-phase reactions.

Hierarchical ZSM-23 catalysts increase hydrocarbon branching to resolve lubricity and cold flow bottlenecks in renewable aviation fuel production.

A borosilicate ZSM-48 molecular sieve catalyzes the hydroconversion of heavy normal paraffins into lighter products.

A combined XTO-OC process circulates zeolitic molecular sieve catalyst between reaction zones to produce light olefins and aromatics.

Silane-functionalized zeolites adsorb contaminants via stable surface bonds, eliminating buffering agents and enabling regeneration.

Induction heating of ferromagnetic catalysts controls reaction temperatures, reducing carbon formation and improving energy efficiency.

A hydrogen-reduced nickel-molybdenum catalyst with optimized metal ratios enhances deoxidation activity in hydrocarbon production.

Steam treating chabazite zeolite at controlled temperatures enhances hydrothermal resistance while maintaining crystallinity.

Recovers piperidine template from mother liquor to prevent costly loss during titanium-containing zeolitic material synthesis.

Modified spray cooling produces spherical catalyst supports from magnesium solutions at low temperatures.

Composite copper zinc oxide catalyst achieves high per pass conversion by shifting thermodynamic equilibrium, eliminating complex recycling loops.

Dual-step calcination anchors Group 10 metals within microporous metallosilicate catalysts.

A fluidized catalytic process converts methanol to dimethyl ether using a riser-fluidized bed reactor system with multipoint feeding.