Partial Gasification of Different Types of Biomass...
Partial Gasification of Different Types of Biomass in a Fluidized Bed Gasifier
Partial gasification of Coconut shell and Saw dust have been studied in a laboratory-scale, atmospheric fluidized bed gasified using air and air-steam as fluidizing media.
Determination of the producer gas compositions were conducted using Gas Chromatography. Partial gasification experiments were conducted at bed temperature of 600C. The comparison of the producer gas compositions while using air and air-steam gasifying agents were conducted. Introduction of steam had shown significant increase on the CO, CO2, CH4, H2 contents in the producer gas compared with the air as the sole gasifying agent.
In this study, it was found that the combustible gases, H2, CO, CH4 were significantly higher in air-steam partial gasification process compared to the air partial gasification process. The effect of the biomass rank was less significant in this study. The quality of the producer gas which was accessed through the calculated LCV also had improved, as the steam was introduced as the gasifying agent.