Results 11 to 20 of about 76,034 (306)
Biodiesel by Co-processing animal fat/vegetable oil mixtures over basic heterogeneous Ca catalyst [PDF]
Cleaner Engineering and Technology, 2020 The use of vegetable oils to produce biodiesel raises several sustainability issues, namely the fuel/food conflict. The high cost of vegetable oils and an expensive homogeneous base catalyzed process encourages the search for alternative raw materials ...
Ana Paula Soares Dias +3 more
doaj +2 more sources
Basic Promotors Impact Thermodynamics and Catalyst Speciation in Homogeneous Carbonyl Hydrogenation [PDF]
, 2022 Homogeneously catalyzed reactions often make use of additives and promotors that affect reactivity patterns and improve catalytic performance. While the role of reaction promotors is often discussed in view of their chemical reactivity, we demonstrate ...
Evgeny A., Uslamin +8 more
core +1 more source
Synthesis of biodiesel from sunflower oil over potassium loaded alumina as heterogeneous catalyst: The effect of process parameters [PDF]
Hemijska Industrija, 2016 Heterogeneous catalysis is in recent focus of research for biodiesel production from vegetable oils because of advantages such as easy separation and reuse of catalysts, although homogeneous catalysis is most commonly used method.
Marinkovic Milos M. +6 more
doaj +1 more source
Preparation and characterization of mixed rare earth hydroxide by co- precipitation method [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2021 The aim of this research was to determine the optimum parameters for synthesis and characterization of mixed rare earth hydroxide (for use as a catalyst) through co-precipitation, with sodium hydroxide as precipitation agent at pH 12.
Wilasinee Kingkam +6 more
doaj +1 more source
Royal Society Open Science, 2022 It has been a challenge to synthesize macrolide musk in excellent yields with high purity. KF-La/γ-Al2O3 catalyst was prepared from a highly basic mesoporous framework using a mild method.
Haijun Cheng +5 more
doaj +1 more source
System Identification for Experimental Study for Polymerization Catalyst Reaction in Fluidized Bed [PDF]
, 2011 In this work, system identification method is used to capture the reactor characteristics of production rate of polyethylene (PE) based on published experimental data. The identification method is used to measure the percentage effect on the production
Ahmmed S. Ibrehem, Ibrehem, A. S.
core +1 more source
Química Nova, 2010 Sodium faujasite zeolites with Si/Al ratio of 1.4 and 2.5 were exchanged with methylammonium cations. The influence of framework aluminum and ion exchange degree in their basic properties were evaluated.
Karina Arruda Almeida +1 more
doaj +1 more source
Accessing and Photo-Accelerating Low-Overpotential Pathways for CO2 Reduction: A Bis-Carbene Ruthenium Terpyridine Catalyst [PDF]
, 2022 A ruthenium catalyst bearing a bidentate bis(carbene) ligand is prepared and studied as a catalyst for CO2 electroreduction. The catalyst [Ru(tpy)(bis-mim)(MeCN)][PF6]2 (tpy) is 2,2′,:6′,2″-terpyridine; bis-mim is (methylenebis(N-methylimidazol-2-ylidene)
Eric A. Assaf +7 more
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Results in Chemistry, 2022 TiO2 nanotubes were prepared electrochemically as pure Ti sheet in 0.5% HF anodized and annealed under nitrogen acquiring the TiO2 NTs-N2 support. By chemical deposition method using NaBH4 as reducing agent, platinum was deposited on TiO2 NTs-N2 support ...
Yasmin M.S. Jamil +2 more
doaj +1 more source
Journal of Saudi Chemical Society, 2019 In this article, a CaO-based catalyst was prepared by impregnating chloride salts on CaO to develop a highly efficient heterogeneous catalyst for the synthesis of glycerol carbonate (GC) from glycerol and dimethyl carbonate.
Ying Tang +5 more
doaj +1 more source