Towards molecular control of elementary reactions in zeolite catalysis by advanced molecular simulations mimicking operating conditions [PDF]
, 2016 Zeolites are the workhorses of today's chemical industry. For decades they have been successfully applied, however many features of zeolite catalysis are only superficially understood and in particular the kinetics and mechanism of individual reaction ...
Bailleul, Simon +2 more
core +1 more source
Olefin hydrogenation over zeolite H-ZSM-5.
Journal of The Japan Petroleum Institute, 1986 H-ZSM-5ゼオライトのオレフィン水素化能を調べるため, 1段目の反応管にZn-Cr系メタノール合成触媒, 2段目の反応管にH-ZSM-5 ゼオライトを充てんした2段反応装置を用いて, メタノールを経由する合成ガスからの炭化水素合成を検討した。1段目の反応圧を40kg/cm2とし, 2段目の反応圧を5～45kg/cm2と変化させたときの結果をFig. 1に示す。2段目の反応圧が20kg/cm2以上では, エタン, プロパンは生成したが, エチレン, プロピレンは全く生成しなかった。このことは, これらパラフィンがH-ZSM-5ゼオライト上で水素化あるいは水素移行反応により生成したことを示唆している。この違いを明らかにするためC2H4-H2, C2H4-Heの2種類の混合ガスをH-ZSM ...
Sano, Tsuneji +5 more
openaire +3 more sources
Angewandte Chemie, EarlyView.We report a dual chemical looping/catalytic process coupling alkane dehydrogenation with aromatic alkylation over Cu‐mordenite, yielding up to 25% alkylated aromatics with >95% selectivity per cycle. In situ NMR, FTIR spectroscopy, and DFT show alkylation proceeds via a π‐bound Cu(I)–olefin intermediate and Brønsted acid sites.
Florent J. Dubray +7 more
wiley +2 more sources
Sorption and activation of hydrocarbons by molecular sieves [PDF]
, 1997 Substantial progress has been made recently in the understanding of sorption and activation of alkanes. This progress reflects the emergence of new theoretical and experimental results, leading to a more quantitative picture of the elementary steps ...
Lercher, Johannes A. +1 more
core +2 more sources
Effect of Co and Mo Loading by Impregnation and Ion Exchange Methods on Morphological Properties of Zeolite Y Catalyst [PDF]
, 2016 Coal tar can be used as an alternative raw material for the production of liquid fuels, such as: gasoline and diesel through hydrogenation and cracking process.
Anggoro, Didi Dwi +3 more
core +2 more sources
Effect of Nano-TiO2 Immobilized on Activated Carbon, Zeolite Y and ZSM-5 on the Removal of Styrene Vapors from Polluted Air [PDF]
Journal of Nanostructures, 2018 TiO2 is a very well-known and well-researched material due to the stability of its chemical structure, biocompatibility, and its physical, optical and electrical properties.
Hossn Ali Rangkoy +5 more
doaj +1 more source
Detection of explosive markers using zeolite modified gas sensors [PDF]
, 2012 Detection of hidden explosive devices is a key priority for security and defence personnel around the globe. Electronic noses, based on metal oxide semiconductors (MOS), are a promising technology for creating inexpensive, portable and sensitive devices ...
Binions, Russell +3 more
core +2 more sources
Removal of Nickel(II) from Aqueous Solutions by Adsorption with Modified ZSM- 5 Zeolites
E-Journal of Chemistry, 2009 The sorptive removal of nickel ion from aqueous solutions using modified ZSM-5 zeolites was investigated. Experiments were carried out as a function of solute concentration and different temperatures.
P. Panneerselvam +5 more
doaj +1 more source
The Effect of Zeolite Structure and Pore Systems on Maximizing Propylene Production in FCC Unit
Chemical Engineering Transactions, 2015 The effect of zeolite topologies and key operating parameters such as temperature and residence time on the cracking of n-heptane was investigated. Zeolite Beta, nano ZSM-5, regular ZSM-5, Ferrierite and mixtures were tested in a fixed bed reactor under ...
E. Alnaimi, A. Garforth
doaj +1 more source
Removal of organobromine compounds from the pyrolysis oils of flame retarded plastics using zeolite catalysts [PDF]
, 2008 Two flame retarded plastics have been pyrolysed in the presence of two Zeolite catalysts to remove the organobromine compounds from the derived pyrolysis oil.
Hall, W.J., Williams, P.T.
core +1 more source