LAPSE:2023.5020
Published Article
LAPSE:2023.5020
Renewable Hydrogen Production from Butanol Steam Reforming over Nickel Catalysts Promoted by Lanthanides
February 23, 2023
Hydrogen is mainly produced by steam reforming of natural gas, a nonrenewable resource. Alternative and renewable routes for hydrogen production play an important role in reducing dependence on oil and minimizing the emission of greenhouse gases. In this work, butanol, a model compound of bio-oil, was employed for hydrogen production by steam reforming. The reaction was evaluated for 30 h in a tubular quartz reactor at 500 °C, atmospheric pressure, GHSV of 500,000 h−1, and an aqueous solution feed of 10% v/v butanol. For this reaction, catalysts with 20 wt.% NiO were prepared by wet impregnation using three supports: γ-alumina and alumina modified with 10 wt.% of cerium and lanthanum oxides. Both promoters increased the reduction degree of the catalysts and decreased catalyst acidity, which is closely related to coke formation and deactivation. Ni/La2O3−Al2O3 presented a higher nickel dispersion (14.6%) which, combined with other properties, led to a higher stability, higher mean hydrogen yield (71%), and lower coke formation per mass (56%). On the other hand, the nonpromoted catalyst suffered a significant deactivation associated with coke formation favored by its highest acidity (3.1 µmol m−²).
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Suggested Citation
Menezes JPDSQ, Guimarães GM, da Silva MAP, Souza MMVM. Renewable Hydrogen Production from Butanol Steam Reforming over Nickel Catalysts Promoted by Lanthanides. (2023). LAPSE:2023.5020
Author Affiliations
Menezes JPDSQ: Centro de Tecnologia, Escola de Química, Universidade Federal do Rio de Janeiro (UFRJ), Bloco E, Rio de Janeiro 21941-909, RJ, Brazil
Guimarães GM: Centro de Tecnologia, Escola de Química, Universidade Federal do Rio de Janeiro (UFRJ), Bloco E, Rio de Janeiro 21941-909, RJ, Brazil
da Silva MAP: Centro de Tecnologia, Escola de Química, Universidade Federal do Rio de Janeiro (UFRJ), Bloco E, Rio de Janeiro 21941-909, RJ, Brazil
Souza MMVM: Centro de Tecnologia, Escola de Química, Universidade Federal do Rio de Janeiro (UFRJ), Bloco E, Rio de Janeiro 21941-909, RJ, Brazil [ORCID]
Guimarães GM: Centro de Tecnologia, Escola de Química, Universidade Federal do Rio de Janeiro (UFRJ), Bloco E, Rio de Janeiro 21941-909, RJ, Brazil
da Silva MAP: Centro de Tecnologia, Escola de Química, Universidade Federal do Rio de Janeiro (UFRJ), Bloco E, Rio de Janeiro 21941-909, RJ, Brazil
Souza MMVM: Centro de Tecnologia, Escola de Química, Universidade Federal do Rio de Janeiro (UFRJ), Bloco E, Rio de Janeiro 21941-909, RJ, Brazil [ORCID]
Journal Name
Processes
Volume
9
Issue
10
First Page
1815
Year
2021
Publication Date
2021-10-13
Published Version
ISSN
2227-9717
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Original Submission
Other Meta
PII: pr9101815, Publication Type: Journal Article
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LAPSE:2023.5020
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doi:10.3390/pr9101815
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[v1] (Original Submission)
Feb 23, 2023
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Feb 23, 2023
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