Sulfur distribution within coal pyrolysis products

The pyrolysis of coal leads to distribution of sulfur compounds in pyrolysis gas, char and tar generated during the process. The effect of the process parameters of autothermal coal pyrolysis in the circulating fluidized bed reactor on total sulfur distribution has been investigated. Several experimental tests were performed at the temperature of 920 degrees C. Non-coking coal from the Wieczorek Mine (Upper Siresian Coal Basin) and brown coal from the Belchatow Mine were examined for sulfur distribution. It was found that distribution of total sulfur in coal pyrolysis products is basically affected by coal to air ratio and addition of steam or acceptor to the pyrolysis process. (C) 1998 Elsevier Science B.V. All rights reserved.