نتایج جستجو برای: oxidative dehydrogenation

تعداد نتایج: 130767  

Journal: :Chemie Ingenieur Technik 2023

A feasibility study of a conventional fixed-bed reactor and packed-bed membrane (PBMR) in distributor configuration is carried out for the selective oxidation methanol to oxygenates dimethoxymethane methyl formate on VOx/TiO2 catalyst. Kinetic experiments provided reaction network reliable kinetic model six main reactions involved. The PBMR offers significant advantages potential formation both...

Journal: :MATEC web of conferences 2021

Short-chain fatty acids (SCFAs) have been used as raw materials in wide range of chemical and medical applications. One technique to produce SCFAs is oxidative cleavage long-chain (LCFAs). However, unless the LCFAs are unsaturated, yield often very low because carboxylic group acid more active than other part molecule. This work explores idea introducing a double bond into saturated LCFA, i.e.,...

Journal: :Catalysis Communications 2022

The oxidative dehydrogenation of propane to propene using carbon dioxide is an attractive novel synthesis route produce a key platform chemical. We investigated iron-chromia catalysts prepared by sol-gel. mixed oxides showed improved specific surface area and high concentration acid base sites were found be highly active catalysts. Although coking was observed over the catalysts, regeneration r...

Journal: :Topics in Catalysis 2021

Abstract The oxidative dehydrogenation (ODH) of 1-butene to 1,3-butadiene was studied over a series AFe 2 O 4 catalysts, where A = Zn, Mn, Ni, Cu, Mg and Fe. catalysts were characterised by XPS, EPR spectroscopy, BET surface area analysis, Raman spectroscopy XRD. All the ferrites active for ODH gave an order activity after 80 h on-stream ZnFe > NiFe MnFe MgFe CuFe FeFe . lost significant (up...

Journal: :Molbank 2022

A 2,4-diarylquinoline derivative, 2-(4-chlorophenyl)-4-(3,4-dimethoxyphenyl)-6-methoxy-3-methylquinoline, was synthesized in a conventional two-step procedure from p-anisidine, p-chlorobenzaldehyde and methyl isoeugenol as available starting reagents through sequence of BF3·OEt2-catalyzed Povarov cycloaddition reaction/oxidative dehydrogenation aromatization processes under microwave irradiatio...

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