Mass Balance and Performance Analysis of Potassium Hydroxide Activated Carbon

被引:24
作者
Hilton, R. [1 ]
Bick, P. [1 ]
Tekeei, A. [1 ]
Leimkuehler, E. [1 ]
Pfeifer, P. [1 ]
Suppes, G. J. [1 ]
机构
[1] Univ Missouri, Dept Chem Engn, Columbia, MO 65203 USA
基金
美国国家科学基金会;
关键词
DENSITY-FUNCTIONAL THEORY; CHEMICAL ACTIVATION; PHOSPHORIC-ACID; MICROPOROUS CARBONS; METHANE STORAGE; KOH-ACTIVATION; PORE-SIZE; ADSORPTION; WASTE; NAOH;
D O I
10.1021/ie301293t
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Highly nanoporous carbon with surface areas in excess of 3,000 m(2)/g can be produced via potassium hydroxide (KOH) activation of a high surface area (1,150 m(2)/g) carbon intermediate. These materials have exhibited methane storage capabilities in excess of 20 wt % at ambient temperature with interest toward commercial production. In preparation for commercial production, detailed mass balances are needed to quantify yield and waste streams, understand the propensity to recycle the KOH, and to provide a benchmark for further optimization. Analytical processes used to evaluate produced carbon performance are detailed in addition to a mass balance on the reaction of KOH with carbon and a KOH balance. Carbon balances revealed that increasing activation time and activation temperature produce lower yields of carbon.
引用
收藏
页码:9129 / 9135
页数:7
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