Results 31 to 40 of about 31,953 (237)

Dual Chemical Looping/Catalytic Process for Alkylation of Benzene With Ethane and Propane Yielding Ethylbenzene and Cumene Over Copper‐Containing Mordenite

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, Yu‐Hsun Wang, Mikalai A. Artsiusheuski, Jiawei Guo, Rene Verel, Ambarish Kulkarni, Jeroen A. van Bokhoven, Vitaly L. Sushkevich   +7 more
wiley   +2 more sources

Preparation and Evaluation of Nanostructured Composite SAPO-34(90%)/HZSM-5(10%) Catalyst Used in Conversion of Methanol to Ethylene and Propylene [PDF]

شیمی کاربردی روز, 2016
Nanostructured SAPO-34 and ZSM-5 catalysts are well-known catalysts for the conversion of methanol to light olefins. SAPO-34 catalyst demonstrated higher light olefins selectivity while ZSM-5 catalyst has shown long lifetime.
بهمن محمدخانی, محمد حقیقی, عرفان آقایی   +2 more
doaj   +1 more source

Immobilized Crosslinked Pectinase Preparation on Porous ZSM-5 Zeolites as Reusable Biocatalysts for Ultra-Efficient Hydrolysis of β-Glycosidic Bonds

Frontiers in Chemistry, 2021
In this study, we immobilized pectinase preparation on porous zeolite ZSM-5 as an enzyme carrier. We realized this immobilized enzyme catalyst, pectinase preparation@ZSM-5, via a simple combined strategy involving the van der Waals adsorption of ...
Can Liu, Liming Zhang, Li Tan, Yueping Liu, Weiqian Tian, Lanqing Ma   +5 more
doaj   +1 more source

Influence of Preparation Conditions of Mixed-valence Co/ZSM-5 Zeolites on Their Adsorption and Catalytic Properties in CO Oxidation

Adsorption Science & Technology, 2002
The adsorption properties, thermal stability and catalytic activity in CO oxidation of Co 2+ , Co 3+ -containing ZSM-5 zeolite systems with different metal loadings were studied.
Ludmila P. Oleksenko, Vitaly K. Yatsimirsky, Larisa V. Lutsenko   +2 more
doaj   +1 more source

Zeolite-filled silicone rubber membranes : Part 1. Membrane preparation and pervaporation results [PDF]

, 1987
Amongst the alternative fuels obtained from renewable resources alcohol from fermentation may become one of the most important. The combination of fermentation with pervaporation in a membrane bioreactor offers the advantage of continuous processing.
Bargeman, D., Hennepe, H.J.C. te, Mulder, M.H.V., Smolders, C.A.   +3 more
core   +3 more sources

Oxidation of 5-hydroxymethylfurfural into 2,5-furandicarboxylic acid over CuO and NiO modified natural sourced hierarchical ZSM-5

South African Journal of Chemical Engineering
The platform molecule 2,5-furandicarboxylic acid (FDCA) has potential applications. FDCA can be synthesized through the oxidation of 5-hydroxymethylfurfural (HMF). In this study, HMF oxidation to FDCA was conducted over ZSM-5-based catalysts from natural
Idra Herlina, Yuni Krisyuningsih Krisnandi, Muhammad Ridwan   +2 more
doaj   +1 more source

Synthesis of ZSM-5/Siliceous Zeolite Composites for Improvement of Hydrophobic Adsorption of Volatile Organic Compounds

Frontiers in Chemistry, 2019
In this research, we investigated the hydrophobicity and dynamic adsorption-desorption behaviors of volatile organic compounds (VOCs) by applying different optimized coating dosage (25, 50, and 75%) on designed novel ZSM-5/MCM-41 and ZSM-5/Silicalite-1 ...
Renna Li, Shijia Chong, Naveed Altaf, Yanshan Gao, Benoit Louis, Qiang Wang   +5 more
doaj   +1 more source

Formation and characterization of inorganic membranes from zeolite-silica microcomposites [PDF]

, 1988
Small crystals of zeolites (500-1000 nm) with two- and three-dimensional channel systems (faujasite and ZSM-5 structures) were embedded in amorphous thin films derived from TEOS hydrolyzed in alcoholic solution.
Barrer, Breck, Brinker, Jacobs, Janata, Seiyama, Ward   +6 more
core   +1 more source

Synthesis of titanium-containing ZSM-48 [PDF]

, 1992
Titanium-containing ZSM-48 is synthesized with silicon to titanium ratios of 26 or larger; changes in unit cell volume and IR data show that titanium is incorporated into framework ...
Davis, Mark E., Li, Hong-Xin, Serrano, David P.   +2 more
core   +1 more source

ZSM-5 Filled Polyether Block Amide Membranes for Separating EA from Aqueous Solution by Pervaporation

International Journal of Polymer Science, 2013
ZSM-5 filled polyether block amide membranes (PEBA), PEBA/ZSM-5, were prepared and used to recover aroma, ethyl acetate (EA), from aqueous solution by pervaporation (PV).
Jin Gu, Xinran Zhang, Yunxiang Bai, Le Yang, Chunfang Zhang, Yuping Sun   +5 more
doaj   +1 more source