PARTICLE ATTRITION IN FLUID-BED PROCESSES.

Abstract

Attrition mechanism of sulfur sorbents in fluidized-bed combustion processes are being studied to develop a comprehensive model and a consistent test to screen sorbents. Available characterization work on particle fracture is reviewed and models developed for thermal and kinetic stress mechanisms based on theoretical studies and test data. The models for each mechanism relate sorbent properties and design and operating parameters to sorbent attrition.