Molecular Sieve Catalysts TRIZ Cases

A composite IZM-2 zeolite catalyst with non-noble metal sulphide phases enables high conversion rates in hydrocracking processes.

One-dimensional 10 membered-ring zeolite in hydroprocessing restricts heavy fraction conversion to 50%, ensuring boiling point compliance.

High surface area sulfated zirconia supports with dispersed tin and rhodium metals reduce fouling rates while preserving catalyst regenerability.

Mild steam calcination modifies faujasite zeolite unit cell size while preserving crystallinity to improve heavy naphtha selectivity.

A graduated catalyst system applies a concentration gradient of ZSM-12 and EU-2 zeolites to boost base oil yields while reducing gas make.

Controlled ion exchange preserves zeolite Y crystallinity while expanding mesopore volume to improve hydrotreating performance.

A catalyzed soot filter merges lean NOx trap and selective catalytic reduction functions into a single substrate structure.

Hydrothermal treatment of aqueous gel with specific organic structuring agents and alkali metal chlorides to produce high-purity IZM-2 zeolite.

Aromatic ketone promoters enhance methanol dehydration to dimethyl ether over aluminosilicate zeolites at controlled molar ratios.

Nano-crystalline ZSM-5 zeolite converts bioethanol into high-octane gasoline, overcoming catalyst deactivation to maintain stability for 40 hours.

Alumino-borosilicate SSZ-57 zeolites localize aluminum atoms within 12-ring channels to enhance large pore selectivity.

A mixed-template synthesis creates SSZ-112 molecular sieve crystals with specific pore structures for catalytic applications.

EMM-17 molecular sieve hydroisomerizes n-alkanes, lowering cloud point while suppressing naphtha and light gas yields.

Acid-base mediated ion exchange disperses molybdenum ions inside zeolite channels to create a stable catalyst.

A composite catalyst support using mesoporous materials and molecular sieves enhances hydrocracking efficiency in heavy crude oil processing.

Swelling multilayer zeolite precursors before calcination creates monolayer nanosheets that preserve pore structure and improve reactant accessibility.

Increasing the trans isomer ratio in the organic structure directing agent mixture resolves low yield and long reaction times during zeolite SSZ-39 synthesis.

Monitoring the 4,4-dimethylhexene to 3,4-dimethylhexene ratio detects catalyst deactivation and prevents branched by-product formation.

Direct synthesis of copper SAPO AFX zeolite via controlled hydrothermal treatment eliminates unwanted phases, improving NOx conversion efficiency.

STA-30 molecular sieve employs an SWY framework structure to improve NOx conversion efficiency while minimizing harmful N2O byproduct formation.

A catalyst layer uses a rare earth compound to protect metal-supporting zeolite particles from degradation.

A three-stage process converts saturated hydrocarbons to olefins using sequential dehydrogenation, hydrogenation, and cracking catalysts.

UZM-54 zeolites synthesize high meso-surface areas using organoammonium cations to resolve low Si/Al ratio thermal stability trade-offs.

Prevent unwanted byproduct retention during metal catalyst regeneration, reducing impurities in purified inert gas streams.

Segmented catalyst zones with distinct platinum and palladium compositions enhance hydrocarbon oxidation efficiency.

Hybrid polyoxometalates combine structural tungsten frameworks with noble metal centers to resolve the trade-off between stability and catalytic efficiency.

A desulfurization catalyst combines sulfur-storing metal oxides with a porous ceramic body and hexagonal boron nitride to enhance mechanical strength.

AlPO-75 metallophosphate molecular sieves increase framework charge density through heteroatom insertion, resolving low acid site limitations.

A zeolite catalyst with a specific XRD peak intensity ratio enhances denitration using alcohol reducing agents.

Porous zeolite support disperses metal elements within communicating channels, preventing aggregation and extending catalyst life in hydrocarbon production.

Octahedral molecular sieve A-B-OMS catalyst achieves high FDCA yields without external bases or high pressure.

Desilication creates mesopores in beta zeolites, resolving diffusion limitations for larger chemical species.

Optimizing gel composition parameters accelerates SFE molecular sieve crystallization, cutting duration from weeks to days while lowering energy use.

Using potassium and adamantylammonium cations to direct aluminum arrangement, improving thermal stability for SCR catalysts.

SSZ-27 molecular sieve employs a propellane diammonium template to create selective pores that separate gases and catalyze oxygenate conversion.

A hydroprocessing catalyst method uses a support with low carbon content to stabilize active metal dispersibility during production.

Ultrafine cerium oxide loaded onto copper zeolite support enables low-temperature nitrogen oxide reduction.

CIT-13 germanosilicate uses substituted benzyl-imidazolium OSDAs to create extra-large pores that handle larger feed molecules in oil upgrading.

A bifunctional Pt-Sn-ZSM-5 catalyst converts n-paraffins and naphtha directly into diesel range hydrocarbons in a single reactor step.

A palladium catalyst with a peripheral crust structure resolves intragranular mass transfer issues to improve selectivity in C3 fraction hydrogenation.

Dehydrogenation catalyst traps hydrogen via doping agents, reducing methane production and side reactions.

A hydrotreating catalyst uses Group VIII noble metals on a mesoporous support to remove sulfur from lube oil feedstreams.

Segmenting the alkylation process into two zones with adjusted circulation protects catalyst stability while achieving over 99.99% propylene conversion.

A solid-state ion exchange method using ammonia vapor to produce copper-exchanged zeolite catalysts at low temperatures.

Carbon templating creates hierarchical mesoporous zeolites that resolve mass transport limitations while maintaining shape selectivity.

SAPO-69 silicometallophosphate molecular sieves overcome low charge density in traditional materials by employing a mixed SDA system for high thermal stability.

Pre-carburizing molybdenum-modified zeolite precursors deposits a controlled carbon layer that suppresses coke formation during lower alkane aromatization.

Interzeolite conversion of FAU zeolites reduces expensive structure directing agent costs while maintaining SSZ-26 structural integrity.