Journal ArticleDOI
Dynamic responses of packed bed reactors
TLDR
In this paper, a modified Peclet number based on the length of the reaction zone is proposed as a criterion for the importance of disturbance amplification in packed-bed catalytic reactors.About:
This article is published in Chemical Engineering Science.The article was published on 2004-10-01. It has received 21 citations till now.read more
Citations
More filters
Journal ArticleDOI
Spatially resolving concentration and temperature gradients during the oxidation of propylene on Pt/Al2O3
TL;DR: In this paper, spatially resolved capillary-inlet mass spectrometry (SpaciMS) was used to monitor dynamic concentration and temperature wave propagation over a Pt/Al2O3 monolith-supported catalyst during propylene oxidation.
Journal ArticleDOI
Dynamic modeling and simulations of the behavior of a fixed-bed reactor-exchanger used for CO2 methanation
TL;DR: In this paper, a multidimensional heterogeneous and dynamic model of a fixed-bed heat exchanger reactor used for CO2 methanation has been developed based on mass, energy and momentum balances in the gas phase and mass and energy balances for the catalyst phase.
Journal ArticleDOI
Optimization of fixed-bed methanation reactors: Safe and efficient operation under transient and steady-state conditions
TL;DR: In this article, the effect of the dilution profile on steady state and transient efficiency of a packed-bed methanation reactor with multiple catalyst-dilution zones is studied numerically.
Journal ArticleDOI
Integrated multiscale modeling of fixed bed reactors: Studying the reactor under dynamic reaction conditions
TL;DR: In this paper, the authors investigate the interactions between the local pellet-scale dynamic responses, and the bed-scale global fields, using computational fluid dynamics (CFD) to simulate the fluid around the catalyst, coupled to transport and reaction inside it.
References
More filters
Book
Chemical Reactor Analysis and Design
TL;DR: The fundamental Mass, Energy, and Momentum Balance Equations The Batch and Semibatch Reactors The Plug Flow Reactor The perfectly mixed flow Reactor Fixed Bed Catalytic Reactors Nonideal Flow Patterns and Population Balance Models Fluidized Bed and Transport Reactors Multiphase Flow Reactors Author Index Subject Index as mentioned in this paper
Journal ArticleDOI
Transients of monolithic catalytic converters. Response to step changes in feedstream temperature as related to controlling automobile emissions
Se H. Oh,James C. Cavendish +1 more
Journal ArticleDOI
Chemical instability induced by a differential flow.
TL;DR: A new kind of instability is predicted for a system involving activator and inhibitor kinetics in a reactive flow that is free from the restrictions of the Turing instability on the diffusion coefficients and can thus be expected to occur in a wide variety of natural and artificial systems.
Book
Numerical methods for problems with moving fronts
TL;DR: In this article, the authors apply the orthogonal collocation method to the convective diffusion equation to illustrate the success of the Galerkin method on finite elements, where the domain is divided into elements and the method is applied within each element.
Journal ArticleDOI
The Bifurcation Behavior of Tubular Reactors.
Klavs F. Jensen,W. Harmon Ray +1 more
TL;DR: In this paper, the bifurcation behavior of a tubular reaction with axial dispersion is analyzed and the influence of the Lewis and Peclet numbers is investigated. But it is shown that oscillations due to interaction of dispersion and reaction effects should not exist in fixed bed reactors and moreover, should only occur in very short “empty” tubular reactors.