Conceptual modeling of a reactor bed of a nickel-copper bi-metallic catalyst for dry reforming of methane
<p dir="ltr">Dry-Reforming-of-Methane (DRM) presents an attractive process for the conversion of CO<sub>2</sub> and CH<sub>4 </sub>to syngas. Catalyst deactivation by carbon formation is a major challenge hindering DRM scale-up. A novel bimetallic Ni/Cu cataly...
محفوظ في:
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| مؤلفون آخرون: | , , |
| منشور في: |
2023
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إضافة وسم
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| الملخص: | <p dir="ltr">Dry-Reforming-of-Methane (DRM) presents an attractive process for the conversion of CO<sub>2</sub> and CH<sub>4 </sub>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.</p><h2>Other Information</h2><p dir="ltr">Published in: Chemical Engineering Science<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.ces.2022.118315" target="_blank">https://dx.doi.org/10.1016/j.ces.2022.118315</a></p> |
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