Abstract:
This work preliminarily designed and studied gasification integrated with combustion in circulating fluidized bed. The work was focused on the quality improvement of syngas production from gasification. This process had the combination of gasification and combustion that it was separated into two independent zones. Heat was transferred from combustion zone to gasification zone by means of latent heat of sand. The designed process produced the high quality gas and heating value. Moreover, this work studied the effect of ratio of palm shell with coal and reaction temperature on syngas composition. The increasing of palm shell component affected gas composition that hydrogen composition became lower but carbon dioxide became higher while carbon monoxide and methane were quite steady. An increase in temperature affected gas composition that hydrogen and carbon monoxide composition were higher and carbon monoxide was slightly increased. On the other hand, carbon dioxide and methane became lower and methane was slightly decreased. Moreover, the result of gas composition was compared with industrial processes, such as SilvaGas and FICFB. It showed that this work gave higher composition of hydrogen.