Results 41 to 50 of about 19,084 (216)

Hydrogenation Ability of ZSM-5 Zeolite.

open access: yesJournal of The Japan Petroleum Institute, 1992
プロトン交換したZSM-5 (HZSM-5) およびアルカリ土類金属含有ZSM-5型ゼオライト (M-HZSM-5, M:アルカリ土類金属) 上でエチレンおよびプロピレンの水素化を行った。重合, 異性化, クラッキング, 水素化等の反応が併発するため, 生成物は低分子量のものから高分子量のものまで生成した。HZSM-5上で生成する低分子量のものは主にパラフィンであった。低級オレフィンの収率は用いるゼオライトの種類に依存し, 次の順に増加した。HZSM-5≈Mg-HZSM ...
openaire   +3 more sources

Partial oxidation of methane to methanol over catalyst ZSM-5 from coal fly ash and rice husk ash

open access: yesMATEC Web of Conferences, 2017
Methane is one of the greenhouse gases that can be converted into liquid fuels such as methanol to retain most of the energy of methane and produce a cleaner environment.
Mirda Yanti Fusia   +3 more
doaj   +1 more source

Superparamagnetic particles in ZSM-5-type ferrisilicates [PDF]

open access: yes, 2008
As-synthesized, low iron content, ferrisilicates of ZSM-5-type contain well-separated Fe(III) ions in a tetrahedral environment and display paramagnetic behavior.
Corma, A   +6 more
core   +1 more source

Nitrido Zeolites. A Novel and Promising Class of Compounds [PDF]

open access: yes, 1994
The synthetic approach to nitrido zeolites has been opened up by the synthesis and characterization of the P-N-sodalite class of compounds. A variety of compounds with a general formula M7_xH2 x[P1 2N24]X2-y with Μ = Zn2 + , Co2 + , Ni2 + etc. and X =
Schnick, Wolfgang, Weitkamp, Jens
core   +1 more source

Defining aluminum-zoning during synthesis of ZSM-5 zeolites

open access: yesPhysical Chemistry Chemical Physics, 2020
The aluminum migration toward the surface and the delayed addition of high-aluminum-containing species contribute to the aluminum-zoning of ZSM-5 zeolites.
Teng Li   +4 more
openaire   +4 more sources

Conversion of Stearic Acid into Bio-Gasoline over Pd/ZSM-5 Catalysts with Enhanced Accessibility

open access: yesApplied Sciences, 2019
Palladium supported on nanocrystalline ZSM-5 (n-ZSM-5, Si/Al = 32) and hierarchical ZSM-5 (h-ZSM-5) with different acidity (Si/Al = 33, 51, 122) were tested in the liquid-phase conversion of stearic acid under nitrogen atmosphere (6 bar).
Marta Arroyo   +3 more
doaj   +1 more source

Diquaternary Ammonium Compounds in Zeolite Synthesis: Cyclic and Polycyclic N-Heterocycles Connected by Methylene Chains [PDF]

open access: yes, 2009
An additional dimension has been added to our long-standing studies in high silica zeolite synthesis via a guest/host synergism. We have created and studied the impact of making symmetric diquaternary ammonium compounds, by varying the chain length ...
Burton, Allen W.   +3 more
core   +1 more source

A one-step Cu/ZnO Quasi-Homogeneous Catalyst for DME Production from Syn-gas [PDF]

open access: yes, 2016
Colloidal Cu/ZnO nanoparticles combine with γ-Al2O3 to form promising hybrid catalysts for the direct synthesis of dimethyl ether (DME) in liquid phase, showing high activity, selectivity and stability.
Garcia Trenco, A   +3 more
core   +1 more source

Dealumination of ZSM-5 Zeolites with Water [PDF]

open access: yesChemistry Letters, 1987
Abstract Dealumination of a framework of H-ZSM-5 zeolites with water was investigated by 27Al MASNMR. It was found that the rate of dealumination is apparently second-order dependent on the concentration of framework aluminium.
Tsuneji Sano   +8 more
openaire   +1 more source

Crystal Engineering of Reticular Materials for Gas‐ and Liquid‐Phase Hydrocarbon Separation

open access: yesAdvanced Materials, EarlyView.
Crystal engineering enables systematic study of structure/function relationships as exemplified by pore engineering of reticular sorbents, including porous coordination networks and covalent organic frameworks. This review assesses such studies applied across the full scope of industrially relevant hydrocarbon separations to provide insight into how ...
Xia Li   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy