Pilot plant research on fast pyrolysis of coal in circulating fluidized bed with hot char carrier.

Shenmu bituminous coal was pyrolyzed and then gasified in a 10 t/h circulating fluidized bed of coal fast pyrolysis system to investigate the operation characteristics, coal pyrolysis characteristics and product distribution in the fluidized bed pyrolysis reactor. The results show that the contents of H2 and CH4 is high in pyrolysis gas with the low heat value of about 11~15 MJ/m³. The tar distillation range analysis demonstrate that light fraction content is about 47.00%. Proximate analysis of semi-coke clearly displays that the content of fixed carbon content is high and that of volatile is low. [ABSTRACT FROM AUTHOR]