Molecular Sieve Catalyst TRIZ Cases

Zeolite-catalyzed depolymerization processes convert complex polyolefin waste directly into usable liquid and gaseous hydrocarbons without extensive sorting.

Integrating reaction and separation in a single column resolves the trade-off between process control and production efficiency for diesel additives.

Optimizing MFI zeolite crystallite size and Si:Al ratio to maintain stable product selectivity during olefin oligomerization.

Separating isopentane from n-pentane enables distinct catalytic zones that boost aromatic yields while extending catalyst lifespan against sulfur contamination.

Bifunctional catalysts convert renewable furfural into cyclopentadiene, reducing energy intensity compared to naphtha steam cracking.

Reducing UZM-14 crystallite size below 60 nm alongside increased mesopore volume improves conversion of heavy aromatics to lighter products.

Mixture of deactivated and regenerated catalyst balances activity and selectivity to increase ethylene and propylene yield.

A mordenite zeolite catalyst featuring a mesoporous surface area exceeding 30 square meters per gram and primary crystal sizes under 80 nanometers.

Metathesizing butene with mesoporous silica catalysts yields propylene independent of ethylene supply constraints.

Removing binders from zeolite bodies eliminates pore blockage and coking, extending catalyst lifetime.

Boron-incorporated MFI zeolite reduces proximate framework aluminum sites to resolve low methanol utilization and side reactions in toluene methylation.

Selective hydrogen extraction via a transport membrane shifts reaction equilibrium toward aromatic yields while suppressing coke formation on the catalyst.

A secondary alkylation reaction zone alkylates non-aromatic purge streams containing unreacted benzene.

Zeolite catalyst compositions incorporating Group 10-12 and Group 15 elements to convert oxygenates into aromatic hydrocarbons.

Steam-air mixed gas controls residual coke content during partial regeneration, reducing CO2 emissions while maintaining light olefin selectivity.

Staging pyrolysis oil introduction into methanol conversion reactors minimizes reactor fouling while improving aromatic yields with bifunctional catalysts.

Dynamic transalkylation conditions minimize benzene co-boiler formation during initial catalyst cycles to achieve 99.9% purity.

Segmented reactors and recycled CO2 eliminate azeotrope separation costs while boosting C2-C4 carboxylic acid productivity.

Staged monomer injection with composite zeolite catalysts directs olefin conversion pathways toward specific trimer products.

Combining noble metals with lanthanides on nonporous substrates reduces cost while maintaining high conversion yields.

Segmented fluidized reactors with dual-function catalysts boost propylene selectivity while minimizing ethylene byproducts from methanol feeds.

Transition metal-loaded porous materials adsorb nitrogen contaminants from alcohol compositions in the vapour phase.

Combines oxidative dehydrogenation with a catalytic membrane reactor to remove hydrogen, lowering energy consumption and eliminating coke production.

Plasma treatment at ambient conditions selectively removes coke from zeolite catalysts to restore catalytic activity.

MCM-22 molecular sieves enable direct benzene propylation without extraction, eliminating ethylbenzene by-products and reducing process complexity.

Preliminary low silica zeolite catalyst removes poisons from input streams, extending main alkylation catalyst life.

Steaming reduces bulk aluminum molybdate below 2700 ppm, minimizing coke formation and maintaining catalyst activity during methane conversion.

Segmenting the reactor zone with a terminating agent prevents side reactions, boosting ethylene and propylene selectivity.

An 8-membered ring molecular sieve catalyst converts methyl halides to olefins while suppressing aromatic by-product formation.