A multi-scale model for the Fischer-Tropsch synthesis in a wall-cooled packed bed reactor

V. Chandra; D. Vogels; E.A.J.F. Peters; J.A.M. Kuipers

doi:10.1016/j.cej.2020.128245

A multi-scale model for the Fischer-Tropsch synthesis in a wall-cooled packed bed reactor

V. Chandra, D. Vogels, E.A.J.F. Peters (Corresponding author), J.A.M. Kuipers

Research output: Contribution to journal › Article › Academic › peer-review

16 Citations (Scopus)

Abstract

A numerical model based on the fundamental continuum transport equations is developed to simulate the Fischer-Tropsch synthesis in a slender packed column. Internal and external mass transport limitations are considered in a fully resolved manner where a two-way coupling between mass and heat transport is accounted for. A Langmuir-Hinshelwood type kinetic model is used for the reaction rate in the catalyst phase which is then intrinsically coupled to the fluid phase transport by enforcing the appropriate boundary condition using the Immersed Boundary Method. The fixed bed reactor consists of 220 particles packed in a random manner using the Discrete Element Method where cooling from the wall to the bed is also considered. The influence of temperature and concentration on conversion and selectivity is investigated. The Direct Numerical Simulation of the Fischer-Tropsch reactor is then compared with an equivalent 1-D heterogeneous reactor model which employs empirical closures.

Original language	English
Article number	128245
Number of pages	18
Journal	Chemical Engineering Journal
Volume	410
DOIs	https://doi.org/10.1016/j.cej.2020.128245
Publication status	Published - 15 Apr 2021

Funding

This work was supported by the Netherlands Center for Multiscale Catalytic Energy Conversion (MCEC), an NWO Gravitation programme funded by the Ministry of Education, Culture and Science of the government of the Netherlands. This work was carried out on the Dutch national e-infrastructure with the support of SURF Cooperative. The authors thank SURF SARA (www.surfsara.nl) and NWO for the support in using the Cartesius supercomputer. This work was supported by the Netherlands Center for Multiscale Catalytic Energy Conversion (MCEC), an NWO Gravitation programme funded by the Ministry of Education, Culture and Science of the government of the Netherlands. This work was carried out on the Dutch national e-infrastructure with the support of SURF Cooperative. The authors thank SURF SARA (www.surfsara.nl) and NWO for the support in using the Cartesius supercomputer.

Funders	Funder number
Netherlands Center for Multiscale Catalytic Energy Conversion
SURF
Ministerie van Onderwijs, Cultuur en Wetenschap
Nederlandse Organisatie voor Wetenschappelijk Onderzoek

Keywords

Direct numerical simulation
Fischer-Tropsch
Lmmersed boundary method
Packed bed reactor
Pattern formation

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10.1016/j.cej.2020.128245

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A multi-scale model for the Fischer-Tropsch synthesis in a wall-cooled packed bed reactor

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Keywords

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