2-05 バイオマスから調製した活性炭のCO<sub>2</sub>吸着性能に及ぼすNH<sub>3</sub>処理の影響
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- 望月 友貴
- 北海道大学
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- BUD Javzandolgor
- 北海道大学
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- 坪内 直人
- 北海道大学
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- BYAMBAJAV Enkhsaruul
- National University of Mongolia
書誌事項
- タイトル別名
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- 2-05 Influence of Ammonia Treatment on the CO<sub>2</sub> Adsorption of Activated Carbon Prepared from Biomass
抄録
<p>The objectives of this investigation were to prepare an adsorbent with high CO2 adsorption capacity and to clarify the effect of N-doping on the CO2 adsorption of activated carbon (AC). First, N-doped AC (NH3-AC) was prepared by NH3 treatment of AC prepared from biomass, and its CO2 adsorption amount was evaluated. Next, chemical and pore property analyses of the NH3-AC were performed to clarify the effect of N-species on the CO2 adsorption ability. CO2 adsorption ability of AC improved by NH3 treatment until 400°C. In contrast, the ability of NH3-AC prepared at 500°C or higher decreased with increasing NH3 treatment temperature. When the NH3 treatment temperature was <200 and 700-800°C, N% in NH3-AC increased. N1s XPS analysis showed that N in NH3 was mainly incorporated into the AC as pyridinic-N. Pore analysis showed that micropores of 0.55-0.85nm decreased when the NH3 treatment temperature was >500°C. It was concluded that the decrease in CO2 adsorption ability was due to the reduction in micropores. However, no significant change was observed in the pore properties of NH3-AC prepared at NH3 treatment temperature of 200-400°C, suggesting that the increase in CO2 adsorption ability was due to the formation of basic sites by the pyridinic-N introduced during NH3 treatment.</p>
収録刊行物
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- 石炭科学会議発表論文集
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石炭科学会議発表論文集 59 (0), 38-39, 2022-10-13
一般社団法人 日本エネルギー学会
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詳細情報 詳細情報について
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- CRID
- 1390575418099733504
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- ISSN
- 24238309
- 24238295
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
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- 抄録ライセンスフラグ
- 使用不可