The effect of CaO sintering on cyclic CO2 capture in energy systems

被引：260

作者：

Sun, P.

Grace, J. R.

Lim, C. J. ^{[1
]}

Anthony, E. J.

机构：

[1] Univ British Columbia, Dept Chem & Biol Engn, Vancouver, BC V6T 1Z3, Canada

[2] Nat Resources Canada, CANMET Ctr, Ottawa, ON K1A 1M1, Canada

来源：

AICHE JOURNAL | 2007年 / 53卷 / 09期

关键词：

cyclic CO2 capture; limestone; pore size distribution; sintering; modeling;

D O I：

10.1002/aic.11251

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The importance of calcium-based sorbents, especially natural limestones, for CO2 removal necessitates an investigation into the sot-bent decay mechanism. This study starts from pore size distributions for samples from tests under various calcination/carbonation cycling conditions. A sintering model is formulated to describe the cyclic behavior of sorbents during cyclic calcination and carbonation. It explains the similar reversibility shown by sorbents under different test conditions. A balance between shorter cumulative sintering time and higher calcination rates appears to be responsible for the similar degrees of sintering and sorbent reversibility. (C) 2007 American Institute of Chemical Engineers.

引用

页码：2432 / 2442

页数：11

共 41 条

[1] Conversion limits in the reaction of CO2 with lime [J].