Development of sulfur removal processes from coal prior combustion may play an important role in use of high sulfur coals Pyrolysis transforms a portion of sulfur in coal to the gas and liquid phases, and may be possible to generate low sulfur chars for clean combustion in boilers This paper presents recent results on influence of gaseous additives on sulfur removal from Yanzhou high sulfur coal The experiments were conducted in a fixed bed reactor with a heating rate of 10?℃/s Nitrogen, organic reagents (ethanol and acetone) and water were used to constitute different atmospheres It was observed that introduction of the organic reagents in pyrolysis promotes sulfur removal, which results in obvious decrease in sulfur content of char Under the conditions studied, addition of ethanol is most effective for desulfurization of the
