Open AccessPRODUCTION OF LIME WITH HIGH REACTIVITY IN A FLUIDIZED BED APPARATUS OF AN INERT MATERIAL
Author(s) -
K.P. Kostohryz,
V.A. Zhaivoronok,
Yu.I. Khvastukhin,
Sheparovych Roman
Publication year - 2018
Publication title -
ènergotehnologii i resursosbereženie
Language(s) - English
Resource type - Journals
eISSN - 2664-3561
pISSN - 2413-7723
DOI - 10.33070/etars.1.2018.04
Subject(s) - inert , fluidized bed , flue gas desulfurization , calcination , lime , calcium carbonate , inert gas , porosity , materials science , combustion , chemical engineering , shrinkage , calcium oxide , cement , mineralogy , waste management , metallurgy , chemistry , composite material , organic chemistry , engineering , catalysis
In dry desulfurization, for example, of gaseous combustion products of thermal power plants and incineration plants, calcium oxide CaO, as a product of firing of natural carbonate rocks, mainly limestones (CaCO3), is widely used. Firing technology, depending on the limestone heat treatment regimes, form a product with certain physicochemical properties: porosity, specific surface, shrinkage value, chemical activity. The influence of heat treatment conditions on the properties of the product obtained is studied. The possibility of fast low temperature heat treatment of finely dispersed limestone in a fluidized bed of an inert material to produce CaO of the required quality is shown. Research facility, technique for carrying out experiments and processing experimental data are described. As a result of the research, the degree of calcination of 80 % of fine limestone in a device with fluidized bed of inert material was achieved and the residence time of the particles in the inert layer was determined. Bibl. 10, Fig. 2, Tab. 1.