Catalytic steam reforming of biomass-derived acetic acid over modified Ni/gamma-Al2O3 for sustainable hydrogen production
- Authors
- Choi, Il-Ho; Hwang, Kyung-Ran; Lee, Kwan-Young; Lee, In-Gu
- Issue Date
- 1-1월-2019
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Steam reforming; Acetic acid; Basicity; Coke formation; Regeneration
- Citation
- INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.44, no.1, pp.180 - 190
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
- Volume
- 44
- Number
- 1
- Start Page
- 180
- End Page
- 190
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/68375
- DOI
- 10.1016/j.ijhydene.2018.04.192
- ISSN
- 0360-3199
- Abstract
- In order to obtain sustainable H-2, the catalytic steam reforming of acetic acid derived from biomass was performed by using the catalysts modified with basic promoters (Mg, La, Cu, and K). La and K increased the total basicity of Ni/gamma-Al2O3 by 30.6% and 93.4%, respectively, which could induce ketonization, producing acetone. In contrast, Mg reduced the number of middle and strong basic sites by 17.2% and improved the number of weak basic sites by 5% for Ni/gamma-Al2O3, which promoted the steam reforming of acetic acid (ca. 100% of H-2 and carbon selectivity at even 450 C) without ketonization. Moreover, the amount of carbon deposited on Ni/Mg/gamma-Al2O3 was 55.1% less than that deposited on Ni/gamma-Al2O3. When Cu was employed, the conversion was ca. 60% with less than 70% of H-2 selectivity, at all temperatures considered herein. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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