Consultez les proceedings de la Conference COMSOL 2024
Different phenomena control the performance and even selectivity in multiphase reactors. Moreover, a two way coupling between the physics could be expected when physical and/or chemical properties depend on the conversion rate. Hence, this presentation aims to show a methodology to model ... En savoir plus
Many industrial applications require special treatments for fluid products, such as: deagglomeration, dispersion, homogenization, emulsion, special mixing or even catalysis of chemical reactions. Such effects can be obtained through cavitation in a closed ultrasonic reactor, in which it ... En savoir plus
A TAP reactor is a fixed-bed catalytic reactor operated in pulse (transient) mode under very low pressures. It has become a very important tool in catalytic studies as it fills the material and pressure gaps existing between practical conditions and high vacuum – monocrystal techniques. ... En savoir plus
The state of the art technology is moving towards more complex and multidisciplinary processes and systems. There is a growing interest in using Multi-physics simulations to have a better understating of the underpinning science of the processes as well as providing cost-effective ... En savoir plus
This paper describes the benefits of computational fluid dynamics in the development of a microreactor used in the desulfurization of aromatic compounds. It is crucial to verify diffusion and extinction coefficients to ensure accurate simulation results prior to experiments. COMSOL ... En savoir plus
Methanol synthesis is a typical reaction in heterogeneous catalysis. In this work, we have studied a laboratory fixed-bed reactor packed with a Cu/Zn/Al2O3 catalyst in both adiabatic and isothermal tubular operational modes. A methanol synthesis kinetic model was implemented in COMSOL ... En savoir plus
A model of a horizontal atmospheric pressure chemical vapor deposition reactor was implemented to aid in the design of a laboratory based one. The model coupled momentum transport, energy transport, and mass transport phenomena to account for reacting fluid flow of a compressible gas in ... En savoir plus
Steam Reforming of Ethanol using a Catalytic Wall Reactor (CWR) was successfully studied using COMSOL Multiphysics. A mathematical model was used to describe the reactor performance in terms of the main variables and dimensionless groups. Simulations showed that at specified conditions ... En savoir plus
Advanced Gas Cooled Reactors (AGRs), owned and operated by EDF Energy, generate around 15% of electrical power in the UK. As AGRs approach their end of life, cracking is liable to occur in the graphite bricks which make up a major part of the reactor core. Safety cases to justify ... En savoir plus
Hydrogen production by water gas shift reaction(WGSR) in Integrated Gasification Combined Cycle (IGCC) plant is the most popular process in the world. Traditional hydrogen production process by WGSR is consist of two processes due to its’ considerable exothermic equilibrium reaction ; ... En savoir plus