Abstract
A novel approach for the investigation of reaction kinetics using a polytropic miniplant reactor featuring a highly resolved fibre optic temperature measurement and FTIR gas phase analysis is presented for methanol synthesis.
Highlights
Despite the fact of methanol synthesis being one of the oldest thermochemical high pressure processes, questions remain open on the adaption of the process from fossilbased synthesis gas with high carbon monoxide (CO)-contents towards sustainable syngas with high CO2contents.[4,5] As both, electrolytically produced H2 from renewable energy and carbon oxide-rich gas obtained from the coupled industrial process are subjected to fluctuations,[4] dynamic description of the methanol synthesis process and the synthesis reactor are imperative for the implementation of PtM processes.[6,7,8] dynamic operation of the methanol synthesis reactor demands for a validated simulation including a highly reliable kinetic model
The highest temperatures and the highest water contents were measured during these phases, based on these observations it can be concluded that the deactivation of the catalyst was mainly correlated to these two factors
The experimental data obtained from the miniplant reactor are highly correlated to an industrial scale reactor according to the simulation platform applied in this work
Summary
Despite the fact of methanol synthesis being one of the oldest thermochemical high pressure processes, questions remain open on the adaption of the process from fossilbased synthesis gas (syngas) with high carbon monoxide (CO)-contents towards sustainable syngas with high CO2contents.[4,5] As both, electrolytically produced H2 from renewable energy and carbon oxide-rich gas obtained from the coupled industrial process are subjected to fluctuations,[4] dynamic description of the methanol synthesis process and the synthesis reactor are imperative for the implementation of PtM processes.[6,7,8] dynamic operation of the methanol synthesis reactor demands for a validated simulation including a highly reliable kinetic model. An improved kinetic understanding of methanol synthesis is one key issue for the implementation of PtM technology on the industrial scale.[9]. Methanol synthesis carried out on commercial Cu/Zn/Al2O3-catalysts can be expressed via the following exothermic equilibrium limited reactions:.
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