Highly crystalline zeolite-a from flash of bituminous and lignite coal combustion

摘要

Flash is bein generated in voluminous amounts by large scale coal combustion process It poses a serious threat to thermal power industries specifically, in India, wherein the percent of utilization of flash is very poor (3-5/100). In view of this problem, newer methods of its disposal and utilization are being explored. The synthesis of zeolite from flash appears to be one of the most promising alternatives as it has emphasis on value addition to waste material. Flyashes originating from different sources of coal differ in their characteristics and have impli- cations in this work on Zeolite-A production. These factors have been thoroughly investigated and the conditions favourable for formation of Zeolite-A have been delineated.