Molecular Sieve Catalysts TRIZ Cases

Replacing exotic organotemplates with inexpensive N,N′-dimethyl-1,4-diazabicyclo[2.2.2]octane dications lowers synthesis costs for aluminosilicate LEV zeolites.

Segmented hydrotreating stages lower hydrogen usage and CO production, eliminating complex recycling needs for diesel fuel.

Dispersed mullite particles reinforce cordierite binding material, maintaining bending strength while increasing porosity for improved thermal shock resistance.

A composite zeolite catalyst with solid inorganic co-catalysts accelerates polyolefin depolymerization.

Segmented extrusion prevents coke formation on metal sites, maintaining stability during one-stage syngas conversion.

An acidic zeolite with a high silica alumina ratio enables continuous liquid phase synthesis of cyclopentyl alkyl ether compounds.

Drying water-contacted catalysts below 300°C prevents steam-induced selectivity deterioration while maintaining activity.

A microporous aluminotitanosilicate crystalline zeolite catalyzes phenol conversion to hydroquinone with high efficiency.

A solid acid catalyst converts ethylene glycol monomethyl ether into glycol dimethyl ether and ethylene glycol under controlled temperature and pressure.

Reducing zeolite particles below 0.5 μm prevents aluminum elimination during high-temperature exposure, sustaining NOx purification rates.

A novel aluminophosphate molecular sieve SCM-18 provides enhanced specific surface area and micropore volume for effective adsorption.

Optimized ZSM-5 catalyst structure reduces coke formation by controlling hydrocarbon diffusion, extending catalyst life during ethylene conversion.

A zeolite lanthanide catalyst enables high-yield alkylaromatic production through ion-exchange supported metal ions.

Solid-state ion exchange deposits metals into dealuminated beta zeolites to catalyze biomass conversion.

Increasing the external surface area to volume ratio of a zeolite catalyst improves poly-alkylated aromatic conversion while reducing by-product formation.

A ceria-zirconia zeolite catalyst body reduces NOx emissions across a wide temperature range without tungsten.

Calcining a platinum sulfite acid impregnated carrier under protective gas stabilizes particle dispersion against sintering.

Segmenting the reaction into two reactors prevents carbon deposition, boosting propylene yield and unit volume production capacity.

Low hydrogen partial pressure dewaxing reduces hydrogen consumption and equipment complexity while maintaining cold flow properties.

Steam or fluorosilicate treatment removes surface alumina from EU-2 zeolite, resolving selectivity trade-offs in hydrocarbon dewaxing.

Multi-stage depressurization regenerates molecular sieves by extracting adsorbed water, maintaining ethanol concentration and reducing energy costs.

Disordered JMZ-12 zeolites combine AEI and CHA topologies using specific structure directing agents to form stable crystalline frameworks.

Ordered cubic mesopores in amine-functionalized zeolites resolve micropore accessibility limits for large reactants.

Hydrothermal crystallization on carbon spheres produces zeolite hollow spheres with controlled mesopores and micropores.

Hydrotreating and hydrodewaxing kerosene with composite catalysts removes sulfur and nitrogen contaminants while maximizing jet fuel yield.

Synthesizes alkali-free AEI zeolites using hydroxide-form structure directing agents to eliminate metal ion contamination.

Embedded nanoparticles in porous zeolite channels prevent aggregation under thermal forces, suppressing catalytic activity decline during heavy oil processing.

Grafting platinum organometallic moieties onto dehydroxylated zeolite frameworks creates hierarchical mesoporosity.

Spray-coated cobalt catalyst on metal foam structure dissipates heat to prevent wax formation during Fischer-Tropsch reaction.

AlPO-57 metallophosphate molecular sieves utilize a unique ABC-6 net topology to resolve catalytic performance limits in hydrocarbon conversion.

Anhydrous sol-gel processing deposits titanium onto porous silica supports, preventing metal leaching and boosting peroxide conversion above 90 percent.

Octahedral molecular sieve nanofibers stabilize long chain olefins within 1D tunnels, resolving the trade-off between selectivity and overall activity.

Segmenting CuZnZr and Ferrierite zeolite layers prevents metal sintering and component interactions that degrade bifunctional catalysts.

Enhanced mesoporous zeolitic catalysts convert polyalkylated benzene to mono-alkylated products at lower temperatures, reducing operational costs.

Segmented reaction zones with independent methanol and olefin feeds reduce benzene content while increasing production capacity.

Segmenting primary and secondary reaction zones alongside dual-stage catalyst regeneration boosts light olefin yield while lowering production costs.

A Pt-Ga-Sn-Al catalyst resolves the trade-off between n-pentane conversion and cyclic product selectivity while mitigating coke-induced deactivation.

Zinc and gallium on a medium pore zeolite boost aromatic yields while reducing gasoline component volume loss during naphtha conversion.

Segmented catalyst beds stabilize activity while preventing agglomeration and pressure drop in high-olefin feedstocks.

Tailored sulfur profiles accelerate de-edging periods while minimizing exposure to protect catalyst performance.

Replacing ammonium templates with morpholinium hydroxide yields thin AEI zeolite plates that improve catalytic pore access.

Base-mediated reassembly directs supramolecular templates to induce long-range mesoporous ordering in crystalline microporous materials.

Optimized platinum rhodium zirconia catalyst achieves high yield adipic acid by resolving selectivity and industrial viability trade offs.

A porous ceramic substrate features a non-uniform oxide coating distributed in dead-end pores to reinforce the structure.

A composite catalyst combining IZM-2 and MFI zeolites enables synergistic isomerization and cracking of middle distillate feedstocks.

Metal-doped silicon catalysts enable oxygen-free methane conversion to olefins, preventing carbon deposition.

Hydrothermal dilution of basic zeolite beta suspensions enriches polymorph-A content, avoiding complex chiral reagents and hazardous corrosive compounds.

Platinum-modified ferrosilicate catalyst achieves high selectivity for cyclopentadiene while minimizing C4 byproduct formation.

A catalyst composition uses modified zeolite and clay to convert heavy hydrocarbon feeds into diesel range products.

Hexamethonium ions template ZSM-48 crystallization, resolving the contradiction between low silica-alumina ratios and high acid activity.