Scholarlink

<p>This study examines pomelo peel-based activated carbon (PMAC) as a promising and sustainable carbon dioxide (CO<sub>2</sub>) adsorbent through a systematic exploration of the influence of activation and adsorption process parameters. Investigations into the effects of the activation parameters revealed that the best potassium hydroxide (KOH) activation conditions were achieved with a KOH to pomelo peel-based char mass ratio of 3:1, an activation time of 1.5&#xa0;h, and an activation temperature of 700&#xa0;°C. The resulting activated carbon, designated as PMAC-3-1.5-7 (where 3, 1.5, and 7 represent the KOH ratio, activation time in hours, and temperature in hundreds Celsius, respectively), exhibited the highest CO<sub>2</sub> uptake of 254.3&#xa0;mg/g at 25&#xa0;°C and 30&#xa0;bar. Additionally, the response surface methodology (RSM) optimisation method applied to the adsorption process parameters indicated that the maximum adsorption capacity (203&#xa0;mg/g) occurred at an adsorption temperature of 25&#xa0;°C, a pressure of 30&#xa0;bar, and a 50% CO<sub>2</sub> composition in the CO<sub>2</sub>-N<sub>2</sub> gas mixture within the parametric study. These findings demonstrate the potential of pomelo peel-based activated carbon as a sustainable and effective adsorbent for CO<sub>2</sub> capture, offering valuable insights into the effects of activation and adsorption process parameters on its CO<sub>2</sub> adsorption performance.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

KOH-activated carbon from pomelo peels for CO2 adsorption: influence of activation and adsorption process parameters

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年3月25日

查看全文
  • Nawal Abd Ghafar,
  • Nor Ruwaida Jamian,
  • Yuki Nagao,
  • Kentaro Aoki,
  • Eleen Dayana Mohamed Isa,
  • Grace Erlinda Harimisa,
  • Nurfatehah Wahyuny Che Jusoh

摘要

This study examines pomelo peel-based activated carbon (PMAC) as a promising and sustainable carbon dioxide (CO2) adsorbent through a systematic exploration of the influence of activation and adsorption process parameters. Investigations into the effects of the activation parameters revealed that the best potassium hydroxide (KOH) activation conditions were achieved with a KOH to pomelo peel-based char mass ratio of 3:1, an activation time of 1.5 h, and an activation temperature of 700 °C. The resulting activated carbon, designated as PMAC-3-1.5-7 (where 3, 1.5, and 7 represent the KOH ratio, activation time in hours, and temperature in hundreds Celsius, respectively), exhibited the highest CO2 uptake of 254.3 mg/g at 25 °C and 30 bar. Additionally, the response surface methodology (RSM) optimisation method applied to the adsorption process parameters indicated that the maximum adsorption capacity (203 mg/g) occurred at an adsorption temperature of 25 °C, a pressure of 30 bar, and a 50% CO2 composition in the CO2-N2 gas mixture within the parametric study. These findings demonstrate the potential of pomelo peel-based activated carbon as a sustainable and effective adsorbent for CO2 capture, offering valuable insights into the effects of activation and adsorption process parameters on its CO2 adsorption performance.