Development of a sustainable nitrogen-doped biochar desulfurizer for solid oxide fuel cell systems

Hendrik Setiawan; Mio Sakamoto; Takaya Fujisaki; Stephen Matthew Lyth; Yusuke Shiratori

doi:10.1016/j.biombioe.2022.106631

Development of a sustainable nitrogen-doped biochar desulfurizer for solid oxide fuel cell systems

Hendrik Setiawan^*, Mio Sakamoto, Takaya Fujisaki, Stephen Matthew Lyth, Yusuke Shiratori

^*Corresponding author for this work

Chemical And Process Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

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Abstract

Solid oxide fuel cells (SOFCs) running on biogas can undergo performance degradation if a trace H₂S is present in the fuel. Here, nitrogen-doped rice husk biochar was employed as a sustainable material for desulfurization of biogas via adsorption. The biochar was doped with nitrogen using NH₃ evaporated from ammonia solution, as a simulated digestate liquid, and this was found to significantly improve H₂S adsorption. Furthermore, the total H₂S adsorption capacity was 2.3 times higher compared to biochar treated with a pure NH₃ gas source. This improvement was attributed to lower pyridinic-N content, leading to a lower degree of O* radical formation, and ultimately, better micropore utilization.

Original language	English
Article number	106631
Number of pages	21
Journal	Biomass and Bioenergy
Volume	167
Early online date	1 Nov 2022
DOIs	https://doi.org/10.1016/j.biombioe.2022.106631
Publication status	Published - 31 Dec 2022

Funding

This work was supported by JSPS KAKENHI , Fostering Joint International Research (B), Grant Number 20KK0248 .

Keywords

adsorption
biochar
digestate liquid
HS
nitrogen-doping

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biombioe.2022.106631

Setiawan-etal-BAB-2022-Development-of-a-sustainable-nitrogen-doped-biocharAccepted author manuscript, 2.07 MBLicence: CC BY-NC-ND 4.0

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title = "Development of a sustainable nitrogen-doped biochar desulfurizer for solid oxide fuel cell systems",

abstract = "Solid oxide fuel cells (SOFCs) running on biogas can undergo performance degradation if a trace H2S is present in the fuel. Here, nitrogen-doped rice husk biochar was employed as a sustainable material for desulfurization of biogas via adsorption. The biochar was doped with nitrogen using NH3 evaporated from ammonia solution, as a simulated digestate liquid, and this was found to significantly improve H2S adsorption. Furthermore, the total H2S adsorption capacity was 2.3 times higher compared to biochar treated with a pure NH3 gas source. This improvement was attributed to lower pyridinic-N content, leading to a lower degree of O* radical formation, and ultimately, better micropore utilization.",

keywords = "adsorption, biochar, digestate liquid, HS, nitrogen-doping",

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T1 - Development of a sustainable nitrogen-doped biochar desulfurizer for solid oxide fuel cell systems

AU - Setiawan, Hendrik

AU - Sakamoto, Mio

AU - Fujisaki, Takaya

AU - Lyth, Stephen Matthew

AU - Shiratori, Yusuke

PY - 2022/12/31

Y1 - 2022/12/31

N2 - Solid oxide fuel cells (SOFCs) running on biogas can undergo performance degradation if a trace H2S is present in the fuel. Here, nitrogen-doped rice husk biochar was employed as a sustainable material for desulfurization of biogas via adsorption. The biochar was doped with nitrogen using NH3 evaporated from ammonia solution, as a simulated digestate liquid, and this was found to significantly improve H2S adsorption. Furthermore, the total H2S adsorption capacity was 2.3 times higher compared to biochar treated with a pure NH3 gas source. This improvement was attributed to lower pyridinic-N content, leading to a lower degree of O* radical formation, and ultimately, better micropore utilization.

AB - Solid oxide fuel cells (SOFCs) running on biogas can undergo performance degradation if a trace H2S is present in the fuel. Here, nitrogen-doped rice husk biochar was employed as a sustainable material for desulfurization of biogas via adsorption. The biochar was doped with nitrogen using NH3 evaporated from ammonia solution, as a simulated digestate liquid, and this was found to significantly improve H2S adsorption. Furthermore, the total H2S adsorption capacity was 2.3 times higher compared to biochar treated with a pure NH3 gas source. This improvement was attributed to lower pyridinic-N content, leading to a lower degree of O* radical formation, and ultimately, better micropore utilization.

KW - adsorption

KW - biochar

KW - digestate liquid

KW - HS

KW - nitrogen-doping

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DO - 10.1016/j.biombioe.2022.106631

M3 - Article

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JO - Biomass and Bioenergy

JF - Biomass and Bioenergy

M1 - 106631

ER -

Development of a sustainable nitrogen-doped biochar desulfurizer for solid oxide fuel cell systems

Abstract

Funding

Keywords

UN SDGs

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