Study of Activation of Coal Char. Annual Technical Progress Report, July 1999-June 2000.

Suuberg, E. M. ; Kulaots, I. ; Aarna, I. ; Callejo, M. ; Vrager, A. ; Deutsch, D.

Technical Information Center Oak Ridge Tennessee

关键词: Chars;    Coal;    Activated carbon;    Porosity;    Bituminous coal;   

RP-ID  :  DE2004821182

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

This is the first report on a project whose aim is to explore in a fundamental manner the factors that influence the development of porosity in coal chars during the process of activation. It is known that choices of starting coal, activating agent and conditions can strongly influence the nature of an activated carbon produced from a coal. In this initial study, the basic techniques for producing the char (via slow pyrolysis in inert gas) and characterizing it (using nitrogen gas adsorption) are developed. The stark differences between the chars that can be produced from Beulah-Zap lignite and Pittsburgh No. 8 bituminous coal are presented. The former is a thermoset material, and gives an easily activated char, whereas the former is thermoplastic and produces during pyrolysis a low porosity char that is difficult to activate.