Filtered reaction rate and interphase mass transfer models in reactive gas‐solid flows
Sign Up to like & getrecommendations! Published in 2024 at "AIChE Journal"
DOI: 10.1002/aic.18521
Abstract: This work pursues the closure for the effective reaction rate based on fine‐grid two‐fluid model (TFM) simulations in reactive gas‐solid flows. It is found that the mesoscale mechanism in the solid‐catalyzed reaction is constrained by… read more here.
Keywords: reaction; reaction rate; mass transfer;
Generalization of the filtered reaction rate model for gas–solid flows incorporating power‐law kinetic
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DOI: 10.1002/aic.70108
Abstract: This work pursues a generalized filtered reaction rate (FRR) model for reactive gas–solid flows via fine‐grid two‐fluid model (TFM) simulations. The power‐law kinetic with various reaction orders (n) is considered. It is well known that… read more here.
Keywords: reaction; reaction rate; filtered reaction; model ... See more keywords
Confinement of Intermediates in Blue TiO2 Nanotube Arrays Boosts Reaction Rate of Nitrogen Electrocatalysis
Sign Up to like & getrecommendations! Published in 2020 at "ChemCatChem"
DOI: 10.1002/cctc.202000006
Abstract: Electrocatalytic nitrogen reduction reaction (NRR) is a complementary route to the traditional Haber‐Bosch process. Boosting the reaction kinetics of electrocatalytic NRR is key to promote the NH3 yield. Herein, we demonstrate that the confinement of… read more here.
Keywords: confinement; reaction rate; rate; reaction ... See more keywords
APUAMA: a software tool for reaction rate calculations
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Molecular Modeling"
DOI: 10.1007/s00894-017-3337-5
Abstract: APUAMA is a free software designed to determine the reaction rate and thermodynamic properties of chemical species of a reagent system. With data from electronic structure calculations, the APUAMA determine the rate constant with tunneling… read more here.
Keywords: calculations apuama; apuama software; reaction rate; reaction ... See more keywords
Characteristic mechanisms controlling the reaction rate for powdered and industrial scale formed Cu/Zn/Mg/Al water gas shift nanocatalysts
Sign Up to like & getrecommendations! Published in 2017 at "Reaction Kinetics, Mechanisms and Catalysis"
DOI: 10.1007/s11144-016-1122-6
Abstract: In the present study, Cu/Zn/Mg/Al nanocatalysts were synthesized using the urea homogeneous co-precipitation method. The obtained powders were then formed in cylindrical (6 mm × 6 mm and 12 mm × 3 mm) shapes. The morphology and structure of powdered and formed catalysts… read more here.
Keywords: reaction rate; water gas; gas shift; rate ... See more keywords
Influence of low-frequency vibrations on the chemical reaction rate in the liquid phase for reagent association
Sign Up to like & getrecommendations! Published in 2017 at "Russian Chemical Bulletin"
DOI: 10.1007/s11172-017-1695-x
Abstract: A bistable state of a reaction system was theoretically shown to be possible for a multistage chemical reaction in the case of reagent association. The conditions for the bistability origin with a possible substantial change… read more here.
Keywords: reagent association; reaction rate; rate; reaction ... See more keywords
Modeling the pH and temperature dependence of aqueousphase hydroxyl radical reaction rate constants of organic micropollutants using QSPR approach
Sign Up to like & getrecommendations! Published in 2017 at "Environmental Science and Pollution Research"
DOI: 10.1007/s11356-017-0161-5
Abstract: Designing of advanced oxidation process (AOP) requires knowledge of the aqueous phase hydroxyl radical (●OH) reactions rate constants (kOH), which are strictly dependent upon the pH and temperature of the medium. In this study, pH-… read more here.
Keywords: temperature; rate constants; hydroxyl radical; reaction rate ... See more keywords
Measurement of various monitors reaction rate in a special core at LR-0 reactor
Sign Up to like & getrecommendations! Published in 2018 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2017.10.036
Abstract: Abstract Validation of the selected materials cross sections is an important task for their use as flux monitors within experimental measurements. As the reaction rate is a function of neutron spectrum and material cross section,… read more here.
Keywords: core reactor; reaction rate; special core; reaction ... See more keywords
Reaction rate analyses of high-energy neutrons by injection of 100 MeV protons onto lead–bismuth target
Sign Up to like & getrecommendations! Published in 2020 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2020.107498
Abstract: Abstract Reaction rate analyses of high-energy neutrons and 100 MeV protons are conducted experimentally by combining the Monte Carlo codes and the nuclear data libraries, in the proton beam transport facility at the Kyoto University Critical… read more here.
Keywords: rate analyses; energy neutrons; high energy; energy ... See more keywords
Photocatalytic reactors with suspended and immobilized TiO 2 : Comparative efficiency evaluation
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2017.05.087
Abstract: Abstract The efficiency of three photocatalytic reactor configurations for the degradation of the micropollutant clofibric acid in water was assessed. The following reaction systems were tested: (i) a slurry reactor with suspended TiO2 particles; (ii)… read more here.
Keywords: reaction rate; efficiency; reactor; photocatalytic reactors ... See more keywords
Monitoring an ionic liquid synthesis with in-situ IR-spectroscopy – The intricacy of solvent effects
Sign Up to like & getrecommendations! Published in 2019 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2019.02.195
Abstract: Abstract This work focuses on the ionic liquid (IL) synthesis starting from dimethyl carbonate and 1-ethylimidazole in methanol. In-situ IR-spectroscopy is used to gain time-dependent concentrations for kinetic analysis. The reaction is found to be… read more here.
Keywords: spectroscopy; ionic liquid; reaction; reaction rate ... See more keywords