Results 31 to 40 of about 20,573,428 (292)

Hydrogenation Ability of ZSM-5 Zeolite. [PDF]

Journal 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   +2 more sources

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

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

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

Molecular dynamics as a tool to study heterogeneity in zeolites - Effect of Na cations on diffusion of CO and N in Na-ZSM-5

, 2014
Zeolites typically contain extra-framework cations to charge-compensate for trivalent Al atom substitutions in the SiO framework. These cations, such as Na, directly interact with quadrupolar guest molecules, such as CO and N, which move through their ...
Newsome, D., Newsome, D. (author), Coppens, Marc-Olivier, Coppens, M.O., Coppens, M-O, Newsome, David, Newsome, D, Coppens, M.O. (author)   +7 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

Designing Hierarchical ZSM-5 Materials for Improved Production of LPG Olefins in the Catalytic Cracking of Triglycerides

Advances in Materials Science and Engineering, 2019
LPG olefins (propene and butenes) are key building blocks in the petrochemical industry whose demand has been expanding steadily in recent years. The use of FCC (fluid catalytic cracking) units for conversion of triglycerides is a promising option for ...
Xuan Hoan Vu, Udo Armbruster
doaj   +1 more source

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

Advanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora, Seung Ju Choi, Jaeki Jeong, Silvia Orecchio, Inés García‐Benito, Manuel Pérez‐Escribano, Joaquín Calbo, Likai Zheng, Minseop Byun, Seyeong Song, Gi‐Hwan Kim, Shaik M. Zakeeruddin, Seog‐Young Yoon, Yimhyun Jo, Agustín Molina‐Ontoria, Enrique Ortí, Nazario Martín, Michael Grätzel   +17 more
wiley   +1 more source

Utilização de zeolitas ZSM-5 na decomposição direta do monoxido de nitrogenio [PDF]

, 1996
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro TecnologicoEste trabalho apresenta a atividade catalítica das zeólitas ZSM-5, para a reação de decomposição do NO, com diferentes razões molares de sílica/alumina (SAR), trocadas ...
Egues, Silvia Maria da Silva
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