High-pressure dehydration converts oxygen-containing compounds into light olefins, resolving the trade-off between increased output and larger reactor size.
High temperature calcination of composite carriers enhances gas oil selectivity while maintaining structural stability.
A metal-loaded zeolite catalyst converts dilute aqueous alcohols into hydrocarbons through direct catalytic reaction.
Aqueous zeolite suspension uses zirconium chelate complex to stabilize rheology at high solids loading.
Acid treatment adjusts titanium MWW zeolite water absorption for extrusion, eliminating polyethylene oxide removal steps and reducing process complexity.
Template-free synthesis creates bimetallic Cu/Fe zeolite beta, resolving low-temperature activity and sulfur resistance limits in SCR applications.
Introducing a modifying agent during metal deposition prevents aggregation, resolving contradictions between reliability and manufacturing precision.
Microporous silica shell protects platinum from sulfur poisoning while allowing hydrogen diffusion to crack large hydrocarbon molecules.
A molecular sieve catalyst uses one-dimensional 8-membered ring channels to drive methanol-to-propylene reactions.
Replacing standard diazabicyclooctane dications with alternative cations expands versatility while maintaining crystallization reliability for SSZ-98 synthesis.
A dual-catalytic system converts heavy hydrocarbons into high-quality fuels, eliminating coke production and severe hydrotreatment needs.
A rare earth exchanged zeolitic catalyst enhances benzene alkylation efficiency while maintaining high product linearity.
Sequential ZSM-12 and ZSM-48 catalytic stages selectively remove haze-inducing substances while maintaining high yield.
A zeolite and precious metal catalyst oxidizes residual ammonia to nitrogen, reducing ammonia slip while maintaining low NOx emissions.
Synthesizing SSZ-102 molecular sieve with low SiO2/Al2O3 ratios using a dication mediator overcomes conventional synthesis feasibility limits.
Heating biomass pyrolysis oil with hydrogen at 40 to 85 degrees Celsius saturates double bonds and prevents phase separation during storage.
Microwave drying prevents platinum migration and pore plugging during washcoat processing, maintaining high catalytic activity.
Spatially separating palladium and rhodium in distinct layers prevents thermal deactivation while maintaining catalytic activity.
A composite metal catalyst combines palladium, ruthenium, tin, and platinum compounds to convert terephthalic acid into 1,4-cyclohexanedimethanol.
Zirconium and titanium framework substitution reduces acidity in USY zeolite, resolving the trade-off between cracking activity and reforming suitability.