Abstract
Lignite with a high organic sulfur content was desulfurized by pyrolysis performed at temperatures ranging from 650 to 950°C. An investigation was carried out on the effect of calcium-based sorbents such as lime, limestone, and dolomite on removing sulfur during pyrolysis in the presence of N 2 and CO 2 gases. Limestone and dolomite proved more effective than lime and more sulfur was removed in an atmosphere of CO2 than in an atmosphere of N2.
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