Conversion of powdered active carbon into monoliths without reducing specific surface area using H3PO4-impregnated waste sawdust

被引：17

作者：

Li, Dawei ^{[1
,2
]}

Tian, Yuanyu ^{[1
,2
]}

Qiao, Yingyun ^{[2
]}

Wen, Ling ^{[1
]}

机构：

[1] China Univ Petr East China, State Key Lab Heavy Oil Proc, Qingdao 266555, Peoples R China

[2] Shandong Univ Sci & Technol, Res Ctr Low Carbon Energy Sources, Qingdao 266590, Peoples R China

来源：

MATERIALS LETTERS | 2014年 / 125卷

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

Carbon material; Porous material; Binder; Sawdust; Phosphoric acid; ADSORPTION; METHANE; ACTIVATION;

D O I：

10.1016/j.matlet.2014.03.125

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Powdered active carbon was converted into active carbon monoliths (ACMs) without reducing specific surface (SSA) by adding H3PO4-impregnated waste sawdust (HIWS) before extrusion. The effects of activation time on the morphologies, textural properties, and compression strength of the prepared ACMs were investigated. The HIWS could act as an easy-making binder for conversion of powdered active carbon into ACMs having a higher SSA than the powdered active carbon. The SSA and compression strength of the ACMs increased with prolonging the activation time. Monolithic active carbon with a SSA of 715 m(2)/g and compression strength of 4.8 MPa was produced by heating at 560 degrees C for 160 min. This research might lead to cost-effective conversion of powdered active carbon into ACMs without compromising SSA. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：175 / 178

页数：4

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