Enrichment of Limestone Used in the Desulphurisation of Fluidised-Bed-Boiler Flue Gases

Table 1

(a) Characteristics of analysed samples [wt. %]—basic composition

Parameter	Substance A: limestone	Substance B: Sorbacal SP	Substance C: Sorbacal H90
CaCO3	98.98
MgCO3	0.86
Ca(OH)2		92.96	97.20
CaO, total	55.43	73.50	74.81
CO2	44.20	2.83	0.98

(b) Characteristics of analysed samples [wt. %]—particle sizes

Particle size	Substance A: limestone	Substance B: Sorbacal SP	Substance C: Sorbacal H90
>1.00 mm	90,3	88,7	0,1
>0.63 mm	7,3	7,7	11,36
>0.20 mm	0,4	0,1	51,7
>0.09 mm	2,0	2,5	22,40