Project title:
Evaluate the impact of fluid dynamics on methanol production in fixed bed reactors containing different pellet geometries
Abstract:
The candidate will collaborate with researchers from the project “Development of a scale-up process to convert CO2 to methanol under supercritical conditions” of the FAPESP-Shell Research Centre for Greenhouse Gas Innovation of POLI-USP at the University of São Paulo. Summary of the program and projects can be found at the RCGI website (http://www.rcgi.poli.usp.br/).
Description:
The goal of this project is the development of a 12 Nm3/h pilot plant for the hydrogenation of CO2 to methanol (CH3OH) under supercritical conditions using rhenium-based catalysts. This process was recently patented in Brazil (BR 10.2021.010759.6).
The aim of this position is to perform a CFD study combined with a kinetic model in order to evaluate the impact of fluid dynamics on methanol production in fixed bed reactors containing different pellet geometries. Another goal of this position is to develop a particle resolved CFD (PRCFD) methodology coupled to the kinetic model for methanol generation. One of the most accepted kinetic models is the Langmuir-Hinshelwood-Hougen-Watson (LHHW). This model will evaluate the impact of fluid dynamics on methanol production.
This study together with the experimental data obtained on the lab scale installation will not only help to understand the process but also provide important information towards the process scale-up. Within the model mentioned above, we can carry out different studies to evaluate the impact of different physical parameters on methanol productivity. For instance, evaluate the impact of bed configuration, temperature, pressure, space velocity and bed packing density on methanol velocity and distribution of along the reactor. Once the model has been developed and implemented, is also aimed to evaluate the impact of different pellet geometries on methanol production to understand the effect of pellet geometry on the catalytic performance of the process. In addition, we can check which reactor geometry best suits the process, for example the best L/D ratio for a given pellet geometry and how their geometry impacts on methanol productivity.
Requirements to fill the position:
This project would be well-suited to a highly motivated candidate with a PhD in mechanical, chemical or materials engineering or related, solid expertise in CFD, Solid knowledge on ASPEN PLUS®, Ability to work in a multidisciplinary and multicultural team, good organization skills and ability to work under pressure with tight schedules.
INFORMATION ABOUT FELLOWSHIP:
This Postdoc fellowship is funded by FUSP. The fellowship will cover a standard maintenance stipend of R$ 8.479,20 (Reais) per month.
MORE INFORMATION:
https://www.rcgi.poli.usp.br/opportunities/
Position: Post-Doctoral Fellowship REF: 23PDR194
Access here AND APPLICATION AT REF Post-Doctoral REF.:23PDR194
