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International Journal of Energy for a Clean Environment
SJR: 0.195 SNIP: 0.659 CiteScore™: 1.2

ISSN Imprimir: 2150-3621
ISSN En Línea: 2150-363X

International Journal of Energy for a Clean Environment

Formerly Known as Clean Air: International Journal on Energy for a Clean Environment

DOI: 10.1615/InterJEnerCleanEnv.2014011088
pages 20-211

INVESTIGATION OF PERLITE PARTICLES HEAT TREATMENT IN FLUIDIZED BED OF INERT MEDIUM

Kyrylo Kostogryz
The Gas Institute, NAS of Ukraine, Kyiv, Ukraine
Yu. I. Khvastukhin
The Gas Institute, NAS of Ukraine, Kyiv, Ukraine
A. M. Tsyupyashuk
The Gas Institute, NAS of Ukraine, Kyiv, Ukraine

SINOPSIS

Results on perlite particles expansion into inert medium fluidized bed apparatus are presented in this paper. Narrow fractions were subjected to expansion of material from the Berehove deposits in Ukraine. In some experiments, raw material was preliminary heated in order to remove bound structural water. As a result of such thermal treatment the content of bound water, which is an expanding agent, was regulated within the range 5.2−1.5%. Processed experimental data allow observation of a significant effect of residual bound water onto expanding of particles. For particles larger than 160 µm a reduction of bound water can increase an expansion factor. For each particle size there is an own value of bound water content which provides a maximum expansion factor. Upon reaching the maximum expansion factors the spherical particles with transparent thin wall (so-called microspheres) were obtained. Thus, due to preheating about 3% of the all particles of original size deqv = 358 µm with bound water content were transformed to hollow glass microspheres up to 1000 µm size and bulk density 82 kg/m3.


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