Energy and Environment, 1995

ISBN Print: 1-56700-052-5

DRY SO2 REMOVAL AT LOW TEMPERATURE USING CALCIUM-BASED SORBENTS

DOI: 10.1615/1-56700-052-5.1100
pages 760-765

Abstract

The reaction between S02 and two dry calcium-based sorbents, calcium oxide (CaO) and calcium hydroxide (Ca(OH)2), has been studied on a laboratory-scale electrically heated fluidized bed reactor at temperature below 673 K. Experimental data on CaO and Ca(OH)2 are presented in this paper. Two calcium-based sorbents have similar reactivity curve but different sulfation rate. The results show the sulfation reactivity depends on particle size, reaction temperature and sorbent/inert ratio. From the SEM micro graphs, the external surface microstructure of calcium oxide has been obtained before and after sulfation.