Preparation of active carbons from corn stalk for butanol vapor adsorption

详细信息    查看全文

• 作者：Yuhe Cao^a ; Keliang Wang^a ; Xiaomin Wang^a ; Zhengrong Gu^a ; ^{Zhengrong.gu@sdstate.edu} ; Tyler Ambrico^b ; William Gibbons^c ; Qihua Fan^d ; Al-Ahsan Talukder^d
• 关键词：Corn stalk ; KOH ; Active carbon ; Gas stripping ; Butanol adsorption
• 刊名：Journal of Energy Chemistry
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：26
• 期：1
• 页码：35-41
• 全文大小：1030 K
• 卷排序：26

文摘

Active carbons (ACs) were prepared through chemical activation of biochar from whole corn stalk (WCS) and corn stalk pith (CSP) at varying temperatures using potassium hydroxide as the activating agent. ACs were characterized via pore structural analysis and scanning electron microscopy (SEM). These adsorbents were then assessed for their adsorption capacity for butanol vapor. It was found that WCS activated at 900 °C for 1 h (WCS-900) had optimal butanol adsorption characteristics. The BET surface area and total pore volume of the WCS-900 were 2330 m2/g and 1.29 cm3/g, respectively. The dynamic adsorption capacity of butanol vapor was 410.0 mg/g, a 185.1% increase compared to charcoal-based commercial AC (143.8 mg/g).