Optimization of syngas production via methane bi-reforming using CeO2 promoted Cu/MnO2 catalyst

Currently, syngas plays an important role in renewable and sustainable energy production. The idea of manufacturing syngas via bi-reforming methane, which involves the combination of methane (CH4), carbon dioxide (CO2), and steam, appears very promising. As a result, the goal of this research is to...

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Main Authors: Ibrahim I.H., Shafiqah M.-N.N., Rosli S.N.A., Mohamed H., Panpranot J., Cuong Nguyen V., Abidin S.Z.
Other Authors: 59072832700
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Published: Institution of Chemical Engineers 2025
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spelling my.uniten.dspace-365632025-03-03T15:43:06Z Optimization of syngas production via methane bi-reforming using CeO2 promoted Cu/MnO2 catalyst Ibrahim I.H. Shafiqah M.-N.N. Rosli S.N.A. Mohamed H. Panpranot J. Cuong Nguyen V. Abidin S.Z. 59072832700 57205539357 57208596708 57136356100 6602147398 58313513400 35800852300 Catalysts Cerium oxide Copper oxides Hydrogen production Methane Reaction rates Steam reforming Syngas production Synthesis gas Temperature programmed desorption CH 4 Conversion rates Cu-based catalyst Methane bi-reforming Optimisations Reaction temperature Response surface methodology optimization Response-surface methodology Syn gas ]+ catalyst Carbon dioxide Currently, syngas plays an important role in renewable and sustainable energy production. The idea of manufacturing syngas via bi-reforming methane, which involves the combination of methane (CH4), carbon dioxide (CO2), and steam, appears very promising. As a result, the goal of this research is to improve syngas output by improving process parameters in methane bi-reforming using a 3%Ce-15%Cu/MnO2 catalyst. Optimization analysis was performed using response surface methodology (RSM). The ultrasonic impregnation (UI) method was employed to synthesize the catalysts used in this study. Following that, the catalyst was characterized using several techniques such as Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD), temperature programmed reduction (TPR), temperature programmed desorption (TPD), and temperature programmed oxidation (TPO). The findings of the characterization show that the presence of CeO2 promoters has a dual effect on the size of CuO crystallites. Firstly, it reduces the size from 19.07 nm to 13.66 nm because to the dilutive effect generated by the inclusion of CeO2. Second, the presence of CeO2 promoter accelerates the transition from CuO to Cu0 metallic phase. Furthermore, the addition of CeO2 boosts the CH4 and CO2 conversion rates by 23.65% and 24.93%, respectively. As a result, the H2 yield increases significantly when compared to the unpromoted catalyst. The study investigates the influence of process parameters, specifically the reaction temperature (700?900?), CO2 ratio (0.2?1), and gas hourly space velocity (GHSV) (16?36 L g cat?1 hr?1), on the conversion of CH4 and CO2, as well as the H2/CO ratio. The optimization study finds that the highest conversion rates for CH4 and CO2 are 78.32% and 72.45%, respectively, when the reaction temperature is 800 �C, the CO2 ratio is 0.6, and the gas hourly space velocity (GHSV) is 26 L g cat?1 hr?1. The optimum conditions result in the highest syngas ratio of 1.77. The results of the optimization are then assessed using the mean errors. The H2/CO ratio, as well as the average errors for CH4 and CO2 conversions, are discovered to be 0.15%, 0.95%, and 0%, respectively. ? 2024 Institution of Chemical Engineers Final 2025-03-03T07:43:05Z 2025-03-03T07:43:05Z 2024 Article 10.1016/j.cherd.2024.04.039 2-s2.0-85192483240 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85192483240&doi=10.1016%2fj.cherd.2024.04.039&partnerID=40&md5=a7365f032d3892c98558a8c4b80925bb https://irepository.uniten.edu.my/handle/123456789/36563 206 62 78 Institution of Chemical Engineers Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
topic Catalysts
Cerium oxide
Copper oxides
Hydrogen production
Methane
Reaction rates
Steam reforming
Syngas production
Synthesis gas
Temperature programmed desorption
CH 4
Conversion rates
Cu-based catalyst
Methane bi-reforming
Optimisations
Reaction temperature
Response surface methodology optimization
Response-surface methodology
Syn gas
]+ catalyst
Carbon dioxide
spellingShingle Catalysts
Cerium oxide
Copper oxides
Hydrogen production
Methane
Reaction rates
Steam reforming
Syngas production
Synthesis gas
Temperature programmed desorption
CH 4
Conversion rates
Cu-based catalyst
Methane bi-reforming
Optimisations
Reaction temperature
Response surface methodology optimization
Response-surface methodology
Syn gas
]+ catalyst
Carbon dioxide
Ibrahim I.H.
Shafiqah M.-N.N.
Rosli S.N.A.
Mohamed H.
Panpranot J.
Cuong Nguyen V.
Abidin S.Z.
Optimization of syngas production via methane bi-reforming using CeO2 promoted Cu/MnO2 catalyst
description Currently, syngas plays an important role in renewable and sustainable energy production. The idea of manufacturing syngas via bi-reforming methane, which involves the combination of methane (CH4), carbon dioxide (CO2), and steam, appears very promising. As a result, the goal of this research is to improve syngas output by improving process parameters in methane bi-reforming using a 3%Ce-15%Cu/MnO2 catalyst. Optimization analysis was performed using response surface methodology (RSM). The ultrasonic impregnation (UI) method was employed to synthesize the catalysts used in this study. Following that, the catalyst was characterized using several techniques such as Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD), temperature programmed reduction (TPR), temperature programmed desorption (TPD), and temperature programmed oxidation (TPO). The findings of the characterization show that the presence of CeO2 promoters has a dual effect on the size of CuO crystallites. Firstly, it reduces the size from 19.07 nm to 13.66 nm because to the dilutive effect generated by the inclusion of CeO2. Second, the presence of CeO2 promoter accelerates the transition from CuO to Cu0 metallic phase. Furthermore, the addition of CeO2 boosts the CH4 and CO2 conversion rates by 23.65% and 24.93%, respectively. As a result, the H2 yield increases significantly when compared to the unpromoted catalyst. The study investigates the influence of process parameters, specifically the reaction temperature (700?900?), CO2 ratio (0.2?1), and gas hourly space velocity (GHSV) (16?36 L g cat?1 hr?1), on the conversion of CH4 and CO2, as well as the H2/CO ratio. The optimization study finds that the highest conversion rates for CH4 and CO2 are 78.32% and 72.45%, respectively, when the reaction temperature is 800 �C, the CO2 ratio is 0.6, and the gas hourly space velocity (GHSV) is 26 L g cat?1 hr?1. The optimum conditions result in the highest syngas ratio of 1.77. The results of the optimization are then assessed using the mean errors. The H2/CO ratio, as well as the average errors for CH4 and CO2 conversions, are discovered to be 0.15%, 0.95%, and 0%, respectively. ? 2024 Institution of Chemical Engineers
author2 59072832700
author_facet 59072832700
Ibrahim I.H.
Shafiqah M.-N.N.
Rosli S.N.A.
Mohamed H.
Panpranot J.
Cuong Nguyen V.
Abidin S.Z.
format Article
author Ibrahim I.H.
Shafiqah M.-N.N.
Rosli S.N.A.
Mohamed H.
Panpranot J.
Cuong Nguyen V.
Abidin S.Z.
author_sort Ibrahim I.H.
title Optimization of syngas production via methane bi-reforming using CeO2 promoted Cu/MnO2 catalyst
title_short Optimization of syngas production via methane bi-reforming using CeO2 promoted Cu/MnO2 catalyst
title_full Optimization of syngas production via methane bi-reforming using CeO2 promoted Cu/MnO2 catalyst
title_fullStr Optimization of syngas production via methane bi-reforming using CeO2 promoted Cu/MnO2 catalyst
title_full_unstemmed Optimization of syngas production via methane bi-reforming using CeO2 promoted Cu/MnO2 catalyst
title_sort optimization of syngas production via methane bi-reforming using ceo2 promoted cu/mno2 catalyst
publisher Institution of Chemical Engineers
publishDate 2025
_version_ 1825816187717550080
score 13.244109