Samples of fly ashes generated from two different coals fired in a C2-rich atm. by recycling part of flue gas have been characterized for chem. compn. and particle size distribution. They have also been tested for reactivity against lime and gypsum in hydration mixts. of interest in the field of pre-formed building materials. Firing coal in unusual conditions (mainly as far as flame temp. and flue gas compn. are concerned) does not alter the reactivity of fly ashes in the systems referred to above. The main factor that affects fly ash reactivity is particle size distribution, as for the ashes produced in ordinary air firing operations.
Fly ashes reactivity in relation to coal combustion under flue gas recycling conditions
VACCARO, Salvatore;
1997-01-01
Abstract
Samples of fly ashes generated from two different coals fired in a C2-rich atm. by recycling part of flue gas have been characterized for chem. compn. and particle size distribution. They have also been tested for reactivity against lime and gypsum in hydration mixts. of interest in the field of pre-formed building materials. Firing coal in unusual conditions (mainly as far as flame temp. and flue gas compn. are concerned) does not alter the reactivity of fly ashes in the systems referred to above. The main factor that affects fly ash reactivity is particle size distribution, as for the ashes produced in ordinary air firing operations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
