Development of an Industrial Multitubular Fixed Bed Catalytic Reactor as Cape-open Unit Operation Model Applied to Ethene Production by Ethanol Dehydration Process
The ethene production by ethanol dehydration has been established as a promising production route. In this work a computer software simulation written in FORTRAN 95 for an industrial multitubular fixed bed reactor (MTR), applied to this production route, is embedded in process simulation environment through a C#./NET wrapper code. This wrapper code was developed in agreement with the CAPE-OPEN standards, allowing the MTR simulator to be used as a native unit operation component in any CAPEOPEN compliant simulation environment.
Remote control of reaction rate by radiofrequency heating of composite catalyst pellets
Abstract The vapour-phase dehydration of ethanol over alumina has been considered as a model system for demonstrating a novel concept for the “remote control” of an endothermic catalytic reaction. Control of the reaction rate was achieved by forming composite catalyst pellets consisting of porous alumina with embedded metal (Fe) microparticles. Exposing such composite catalyst pellets to alternating magnetic field in the radiofrequency range (900 kHz) resulted in localised heat generation within the catalyst pellets due to induction heating of the iron particles. The effect of the magnetic field power output and reactant flowrate on the steady-state conversion over a differential catalyst bed was systematically investigated. Transient On/Off operation of the reaction was then demonstrated by periodically changing the intensity of the magnetic field and thus controlling the local temperature of the catalyst. This concept enables the reaction product to be formed locally in short bursts, which provides opportunity for process intensification and on-demand synthesis.
America Or Europe?: British Foreign Policy, 1739-63
International developments Britain and the War of the Austrian Succession Anglo-French relations the Crown Parliament diplomats and ministers defence, foreign policy and strategy Pitt and moves towards new strategies, 1755-63 conclusion - Europe or America?.