Enhancement of hydrogen-rich gas production by acetic acid steam reforming: characterization of Ni–Co modified biochar-based catalysts-Reference-Cited by-同舟云学术

Enhancement of hydrogen-rich gas production by acetic acid steam reforming: characterization of Ni–Co modified biochar-based catalysts

Published:2024-08-01 Issue:8 Volume:22 Page:923-938
ISSN:1542-6580
Container-title:International Journal of Chemical Reactor Engineering
language:en
Short-container-title:

Author:

Lin Yucheng¹,Ma Tengjie¹²,Chen Wei³,Hu Junhao¹²,Pang Shusheng¹⁴,Chang Chun¹²³,Li Pan¹²³⁵

Affiliation:

1. 12636 School of Chemical Engineering, State Key Laboratory of Biobased Transport Fuel Technology, Zhengzhou University , Zhengzhou , China

2. 12636 School of Mechanical and Power Engineering, Zhengzhou University , Zhengzhou , China

3. Henan Key Laboratory of Green Manufacturing of Biobased Chemicals , Puyang , China

4. Department of Chemical and Process Engineering, University of Canterbury , Christchurch , New Zealand

5. Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University , Nanjing , China

Abstract

Abstract The development of cost-effective and highly efficient biochar-based catalysts is essential for the catalytic steam reforming process of bio-oil. In this study, pickling peanut shell biochar was used to prepare biochar-supported Ni/Co monometallic catalyst and biochar-supported nickel-Co bimetallic catalyst through the impregnation method. The catalytic effect of these catalysts on acetic acid (a bio-oil model compound) steam reforming was investigated. It was found that Co could enhance the dispersion of metal particles. The catalyst exhibited the best catalytic effect and significantly improved resistance to carbon deposition with a loading of 8 wt% and a Ni-to-Co ratio of 6:2. At the temperature of 600 °C and the S/C ratio of 3, the selectivity of H2 reached 84.48 %, and the conversion of acetic acid reached 95.49 %. A synergistic effect was observed between Ni and Co, leading to increased metal dispersion, enhanced reducibility, and a higher number of active centers. Co facilitates water dissociation and promotes the oxidation of C–H and mobile O, resulting in a faster decarbonization rate. The effective utilization of biochar-based catalysts and the rational utilization of bio-oil contribute to the timely achievement of carbon emission reduction targets.

Funder

National Natural Science Foundation of China

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/ijcre-2024-0120/pdf

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