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We present the results from a series of jet-attrition experiments performed using a standard ASTM device (ASTM D5757-00) on naturally occurring ash-sized (<2mm) pumice, a product of explosive volcanic eruption comprising highly porous silicate glass. We investigate the effect of both feed grain size and attrition duration on the production of fines. We utilize a wet methodology for fines collection...
The extent and causes of attrition for three possible carbon dioxide capture sorbents for fluidized bed systems were investigated. The sorbents were crushed limestone, lime-based pellets containing calcium aluminate cement binder, and the same pellets coated by mesoporous silica without a binder. An air-jet apparatus based on the ASTM D5757 standard, with several improvements in testing capabilities,...
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