brown lignite

brown lignite

[¦brau̇n ′lig‚nīt]
(geology)
A type of lignite with a fixed carbon content ranging from 30 to 55% and total carbon from 65 to 73.6; contains 6300 Btu per pound (14.65 megajoules per kilogram). Also known as lignite B.
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During all the four combustion regimes the brown lignite from the North-West Bohemian Coal Basin was combusted together with limestone as a desulphurization additive.