tailieunhanh - Performance evaluation of gasifier with different sizes of feed stock

Particle size is important parameter affecting the composition, quality and final applications of the producer gas. Fine grained or fluffy feed stock may cause flow problems in the gasifier as well as an inadmissible pressure drop over the reduction zone and a high proportion of dust in the gas. To avoid such problems briquetted material considered for gasification. The developed gasifier was tested with different sizes of briquettes of 15, 30 and 45 mm width and 90 mm diameter. The volatile matter, fixed carbon and ash content of briquette were found as , and , respectively. Briquette consumption rate was low at air flow rates of 20 to 25 m3 h -1 but it was observed by that increasing of air flow rate, feed consumption rate was also increased up to 35 m3 h -1 and decreased with increase of further air flow rate. Hence, 30 mm briquette size considered for gas production. | Performance evaluation of gasifier with different sizes of feed stock