Results 81 to 90 of about 76,488 (262)

Modeling and simulation of the startup of the coupling reactor for Industrial-Scale production of Diethyl oxalate

open access: yesJournal of King Saud University: Engineering Sciences
A one-dimensional homogeneous reactor model was developed to simulate the dynamic behavior of a fixed-bed reactor for a catalytic coupling reactor of carbon monoxide and ethyl nitrite to diethyl oxalate.
Mohammad Dudin   +2 more
doaj   +1 more source

Lab Scale Fixed-Bed Reactor for Operando X-Ray Absorption Spectroscopy for Structure Activity Studies of Supported Metal Oxide Catalysts [PDF]

open access: yes, 2018
Lab scale fixed-bed reactor is applied for operando transmission X-ray absorption spectroscopy (XAS) for structure-activity studies of supported metal oxide catalysts under real reaction conditions. This setup includes many properties of an optimal fixed-
Bocher, L.   +6 more
core  

Influence of gas flow rate on liquid distribution in trickle-beds using perforated plates as liquid distributors [PDF]

open access: yes, 2008
Two wire mesh tomography devices and a liquid collector were used to study the influence of the gas flow rate on liquid distribution when fluids distribution on top of the reactor is ensured by a perforated plate.
Atta A.   +9 more
core   +3 more sources

A new drag and lift correlation for spherocylinders from fully resolved Immersed Boundary Method

open access: yesAIChE Journal, EarlyView.
Abstract Many industrial processes deal with non‐spherical particles, e.g., mineral mining and biomass conversion. It is crucial to understand the particles' hydrodynamics to control and optimize these processes. To extend the current state‐of‐the‐art from arrays of spherical particles to spherocylindrical particles, we performed extensive particle ...
A. H. Huijgen   +4 more
wiley   +1 more source

Selective hydrogenation in trickle-bed reactor. Experimental and modelling including partial wetting. [PDF]

open access: yes, 2003
A steady state model of a trickle bed reactor is developed for the consecutive hydrogenation of 1,5,9-cyclododecatriene on a Pd/Al2O3 catalyst. Various experiments have shown that the selectivity of this reaction towards the product of interest is much ...
Delmas, Henri   +3 more
core   +3 more sources

Flow characteristics and regime transitions in fluidization systems of Group C+ particles

open access: yesAIChE Journal, EarlyView.
Abstract Fine and ultrafine particles are attractive for fluidized bed reactors because their high surface area benefits catalytic processes, but their cohesive nature complicates regime characterization. Nanoparticle modulation improves the flowability of Group C powders, yet their bubbling to turbulent transition remains unclear.
Yue Song   +3 more
wiley   +1 more source

Improvement of Hydrodynamics Performance of Naphtha Catalytic Reforming Reactors Using CFD [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2014
Due to high applicability of the fixed bed catalytic naphtha reforming reactors, hydrodynamic features of this kind of reactors with radial flow pattern are improved in this work by utilising computational fluid dynamics technique.
Rasool Mohammadikhah   +3 more
doaj  

Mathematical Modelling of Catalytic Fixed-Bed Reactor for Carbon Dioxide Reforming of Methane over Rh/Al2O3 Catalyst

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2008
A one-dimensional mathematical model was developed to simulate the performance of catalytic fixed bedreactor for carbon dioxide reforming of methane over Rh/Al2O3 catalyst at atmospheric pressure.
New Pei Yee   +2 more
doaj   +1 more source

Ultra-clean hydrogen production by ammonia decomposition

open access: yesJournal of King Saud University: Engineering Sciences, 2018
A rigorous heterogeneous mathematical model is used to simulate a cascade of multi-stage fixed bed membrane reactors (MSFBMR) with inter-stage heating and fresh sweep gas for the decomposition of ammonia to produce high purity hydrogen suitable for the ...
M.E.E. Abashar
doaj   +1 more source

Effects of Purification on the Hydrogen Production in Biomass Gasification Process

open access: yesChemical Engineering Transactions, 2017
Energy from renewable sources such as biomass are expected to complement the energy derived from fossil fuel resources due to its abundant reserves and relatively low price compared with other energy sources.
M.B. Muslim, S. Saleh, N.A.F.A. Samad
doaj   +1 more source

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