Doped lithium orthosilicate for absorption of carbon dioxide

被引：166

作者：

Gauer, C ^{[1
]}

Heschel, W ^{[1
]}

机构：

[1] TU Bergakad Freiberg, Dept Energy Proc & Chem Engn, D-09596 Freiberg, Germany

来源：

JOURNAL OF MATERIALS SCIENCE | 2006年 / 41卷 / 08期

关键词：

D O I：

10.1007/s10853-006-7070-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Solid absorption is regarded as an option to separate CO2 from high temperature gases. At present, suitable sorbents are limited to calcium or lithium containing oxides. Among the latter, lithium orthosilicate (Li4SiO4) might be preferred due to its high reactivity for CO2 absorption. Improved sorption properties are obtained by appropriate doping of Li4SiO4. Especially, doping of vacancies into the lattice of crystalline Li4SiO4 seems to be advantageous. This is concluded from sorption experiments of Al- and Fe-cloped Li4SiO4 that are presented in this article. In addition, a comparison to eutectic doping by use of potassium is provided. For the investigation of practical applicability, cyclic absorption/desorption was performed on selected samples. (c) 2006 Springer Science + Business Media, Inc.

引用

页码：2405 / 2409

页数：5

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