Converting bio-based cyclopent-2-en-1-one to exo-tetrahydrodicyclopentadiene eliminates petroleum reliance and costly separation steps.
Cyclic sulfate anionic surfactants lower critical micelle concentration by factors of 10 to 100, reducing dosage while avoiding food resource competition.
A molecular sieve catalyst performs transalkylation of polyalkylbenzenes with monoalkylbenzenes to produce specific dialkylbenzene isomers.
A venturi mixing device generates high turbulence through colliding jets to blend immiscible liquids.
Solid acid catalysts in a catalytic distillation column enable efficient co-production of cumene and secondary butyl benzene while minimizing polysubstitution.
A dual catalyst system performs dehydrogenation and alkylation concurrently in a single reactor vessel.
Co-feeding molecular hydrogen at 100 ppm extends catalyst service life and maintains p-xylene production efficiency at high weight hourly space velocities.
Liquid phase isomerization with ZSM-5 or MCM-49 catalysts produces near-equilibrium xylenes while reducing byproduct formation and catalyst deactivation.
MCM-22 covers ZSM crystals to suppress cracking reactions, preventing severe viscosity loss while improving base oil yield.
Internal olefin feed composition reduces catalyst deactivation rates, extending solid acid catalyst lifetime during oligomerization.
WO3-incorporated MCM-48 catalyst converts 2-butene to 1-butene at 150-350°C, preventing metathesis side reactions that degrade yield.
A small reactor decomposes unconverted organic chloride in the C5 drag stream into hydrogen chloride for removal.
Dual catalyst zones enable stable exo-THDCPD production, replacing toxic AlCl3 and ensuring high selectivity.
A bifunctional catalyst converts methane to aromatic hydrocarbons under non-oxidizing conditions without intermediate synthesis gas generation.
Segmenting the catalyst limits diffusion paths, preventing isomerization and cracking during transalkylation.
Catalytic conversion of low-density sesquiterpenes into high-performance naval fuels exceeding 0.90 g/mL density through molecular restructuring.
Balanced catalyst ratios convert ethylene and butene into propylene, reducing energy consumption and minimizing side reactions during olefin production.
Cooling mixed xylenes to crystallize p-xylene then filtering the slurry with a simulated moving bed unit.
A dividing wall fractionation column separates ethylbenzene, benzene, and polyethylbenzene streams in a single vessel.
Composite MOR and MFI zeolite catalyst reduces non-aromatic co-boilers to improve benzene purity.