Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.14279/23916
Title: | Computational Investigation of Microreactor Configurations for Hydrogen Production from Formic Acid Decomposition Using a Pd/C Catalyst | Authors: | Hafeez, Sanaa Al-Salem, Sultan M. Bansode, Atul Villa, Alberto Dimitratos, Nikolaos Manos, George Constantinou, Achilleas |
Major Field of Science: | Engineering and Technology | Field Category: | Chemical Engineering | Keywords: | Single Crystal;Dehydrogenation;Generation;Separation;Catalyst poisoning;Computational fluid dynamics;Formic acid;Fossil fuels;Hydrogen production;Packed beds | Issue Date: | Feb-2022 | Source: | Industrial & Engineering Chemistry Research, 2022, vol. 61, no. 4, pp. 1655−1665 | Volume: | 61 | Issue: | 4 | Start page: | 1655 | End page: | 1665 | Journal: | Industrial & Engineering Chemistry Research | Abstract: | The need to replace fossil fuels with sustainable alternatives has been a critical issue in recent years. Hydrogen fuel is a promising alternative to fossil fuels because of its wide availability and high energy density. For the very first time, novel microreactor configurations for the formic acid decomposition have been studied using computational modeling methodologies. The decomposition of formic acid using a commercial 5 wt % Pd/C catalyst, under mild conditions, has been assessed in packed bed, coated wall, and membrane microreactors. Computational fluid dynamics (CFD) was utilized to develop the comprehensive heterogeneous microreactor models. The CFD modeling study begins with the development of a packed bed microreactor to validate the experimental work, subsequently followed by the theoretical development of novel microreactor configurations to perform further studies. Previous work using CFD modeling had predicted that the deactivation of the Pd/C catalyst was due to the production of the poisoning species CO during the reaction. The novel membrane microreactor facilitates the continuous removal of CO during the reaction, therefore prolonging the lifetime of the catalyst and enhancing the formic acid conversion by approximately 40% when compared to the other microreactor configurations. For all microreactors studied, the formic acid conversion increases as the temperature increases, and the liquid flow rate decreases. Further studies revealed that all microreactor configurations had negligible internal and external pore diffusion resistances. The detailed models developed in this work have provided an interesting insight into the intensification of the formic acid decomposition reaction over a Pd/C catalyst. | URI: | https://hdl.handle.net/20.500.14279/23916 | ISSN: | 15205045 | DOI: | 10.1021/acs.iecr.1c04128 | Rights: | © American Chemical Society | Type: | Article | Affiliation : | University College London Cyprus University of Technology Kuwait Institute for Scientific Research Delft University of Technology Università degli Studi di Milano Università di Bologna |
Publication Type: | Peer Reviewed |
Appears in Collections: | Άρθρα/Articles |
CORE Recommender
SCOPUSTM
Citations
11
checked on Mar 14, 2024
WEB OF SCIENCETM
Citations
8
Last Week
0
0
Last month
0
0
checked on Oct 29, 2023
Page view(s)
299
Last Week
0
0
Last month
3
3
checked on Dec 25, 2024
Google ScholarTM
Check
Altmetric
This item is licensed under a Creative Commons License