Preparation of high-surface-area PAN-based activated carbon by solution-blowing process for CO(2) adsorption

NCU Institutional Repository > 工學院 > 化學工程與材料工程學系 > 期刊論文 > Item 987654321/49965

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/49965

题名:	Preparation of high-surface-area PAN-based activated carbon by solution-blowing process for CO(2) adsorption
作者:	Hsiao,HY;Huang,CM;Hsu,MY;Chen,H
贡献者:	化學工程與材料工程學系
关键词:	CAPTURE;ADSORBENTS;DIOXIDE;GAS;KOH;PERFORMANCE;CHEMISTRY;MECHANISM;SORBENTS;REMOVAL
日期:	2011
上传时间:	2012-03-27 16:27:35 (UTC+8)
出版者:	國立中央大學
摘要:	High-surface-area activated carbon obtained from ultra-thin PAN fibers was evaluated as CO(2) adsorbent in a simulated flue gas stream. These carbons were prepared from ultra-thin PAN fibers by means of stabilization, activation, and carbonization. By changing the stabilization temperature, it is possible to control the pore size from supermicropores (0.7-2.0 nm) to mesopores (2-5.5 nm). The surface area of the carbon can be over 2500 m(2)g(-1). Both textural properties and nitrogen functionality influence the CO(2) adsorption performance of the adsorbents. The ultra-thin PAN fibers stabilized at 533 K (AC533) achieved the highest CO(2) gravimetric equilibrium capacity of 5.53 mmol g(-1) in a binary mixture of 15% CO(2) in N(2) at 323 K, while AC493 had the highest CO(2) dynamic adsorption of 2.70 mmol g(-1) in a N(2)/CO(2)/H(2)O mixture (83/10/7% v/v) at 323 K. The textural properties, the micropore surface and micropore volume obtained from micropores below 1.1 nm, have a significant effect on CO(2) dynamic adsorption. The stabilization temperature affects the nitrogen group present, as determined by XPS, which enhances the specific adsorbent-adsorbate interaction for CO(2). (C) 2011 Elsevier B.V. All rights reserved.
關聯:	SEPARATION AND PURIFICATION TECHNOLOGY
显示于类别:	[化學工程與材料工程學系 ] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	493	检视/开启

在NCUIR中所有的数据项都受到原著作权保护.

社群 sharing

数据加载中.....