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Conceptual modeling of a reactor bed of a nickel-copper bi-metallic catalyst for dry reforming of methane

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submitted on 2023-11-06, 10:03 and posted on 2023-11-06, 10:49 authored by Murtaza A. Khan, Mohamed S. Challiwala, Anuj V. Prakash, Nimir O. Elbashir

Dry-Reforming-of-Methane (DRM) presents an attractive process for the conversion of CO2 and CH4 to syngas. Catalyst deactivation by carbon formation is a major challenge hindering DRM scale-up. A novel bimetallic Ni/Cu catalyst developed previously in our lab demonstrated significant carbon resistance and superior stability compared to conventional Ni catalysts. This paper presents the kinetics of the bimetallic catalyst. A unique approach utilizing carbon formation rates obtained from Density-Function-Theory (DFT) results is presented to scale monometallic Ni catalyst kinetics. The developed kinetics model incorporated within a 1-D pseudohomogeneous reactor-bed model was validated with thermodynamics and experimental results. The experimental results were obtained at 923-K temperature, flowrates (30 mL/min-250 mL/min), catalyst-loading (<10 mg), and bed-dilution (<500 mg). Additionally, the catalysts were characterized to identify crystal phase, surface area, pore-volume, and composition using XRD, BET-BJH, and ICP analysis, respectively. The developed kinetics model and the associated characterization dataset could be used for future scalability/reproducibility assessments.

Other Information

Published in: Chemical Engineering Science
License: http://creativecommons.org/licenses/by/4.0/
See article on publisher's website: https://dx.doi.org/10.1016/j.ces.2022.118315

Funding

Open Access funding provided by the Qatar National Library

History

Language

  • English

Publisher

Elsevier

Publication Year

  • 2023

License statement

This Item is licensed under the Creative Commons Attribution 4.0 International License

Institution affiliated with

  • Texas A&M University at Qatar