Biofuel from Rice Husk Pyrolysis: Effect Of Temperature to Pyrolysis Oil and Its Kinetic Study

Document Type: Research Article

Authors

Chemical Engineering Department, Faculty of Engineering, Lambung Mangkurat University, Banjarbaru, Indonesia

Abstract

Rice husk is counted as an agricultural waste that results environmental problem during its handling. In this work, rice husk was used as raw material for producing liquid biofuel (pyrolysis oil) via pyrolysis. The pyrolysis reaction was carried out at temperatures of 450, 500 and 550 °C for 1 hour. The pyrolysis oil was collected and weighted for every 10 minutes. The results showed that the increase of pyrolysis temperature caused the yield of pyrolysis oil increased. The properties in the term of heating value also increased while viscosity and density of pyrolysis oil decreased. These properties were almost similar to diesel oil with slightly lower heating value. The proposed model using the single reaction model and two stages model were fit to represent the mechanism of rice husk pyrolysis reaction in this study. However, the results of two stages model gave lower error than those of the single reaction model. Furthermore, the rate of pyrolysis reaction at various temperatures could be determined using the kinetic data obtained from the developed model. This information would be useful for designing pyrolysis reactor especially for producing biofuel (pyrolysis oil) from the rice husk.

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