EFFECT OF GASIFICATION OPERATING PARAMETERS ON QUALITY OF SYNGAS PRODUCED USING SAWDUST FEEDSTOCK

📄 Project Abstract

This research work investigates the effect of gasification operating parameters, namely: equivalence ratio (ER), gasification agent, reaction zone temperature, and residence time on quality of syngas produced using sawdust.The research experiments were conducted using a pilot scale downdraft gasifier with constricted throat and a rotating grate. Temperatures at reaction zone of the gasifier were monitored directly using a digital thermometer whereas an online gas analyzer capable of detecting percentage composition and calorific value was employed to monitor quality of the syngas.Two sets of experiments were carried out separately; one using air and the other using oxygen-enriched air as gasifying agents. With air, flow rates at 6.4, 1.9 and 0.7 litre per minute (LPM) were used for the study. The results obtained shows that the higher air flow level favours better quality of syngas. Air flow rate at 0.64LPM generated the best quality of syngas containing 13.55 and 2.59% of CO and H2, r...