Char Production from Cassava Rhizome Mixed Soil Improvement by Fast Pyrolysis in a Free-Fall Reactor

This research is to study the pyrolysis process of cassava rhizome (CR) in a free-fall reactor. The objective was to study the effect of mixed soil improvement on the properties of bio-oil and char products. The rhizome cassava mixed soil improvement was 200 g / hr. Mixing ratio of cassava rhizome and soil improvement is 50 to 50 by weight. The mixed soil improvement were granular pH11 plus soil conditioner (L11), volcanic rock (VR), TPI pelletized organic fertilizer (OF) and super dolomite (SD). Temperature pyrolysis was at 500 degrees Celsius. The results showed that bio-oil yield and gas yield decreased while char yields increased. For mixed soil improvement, made higher heating value in bio-oil increased, while the char properties of higher heating value decreases.