A review of biofuel production from rice straw
Paper ID : 1042-NICAME1402
Authors:
Mohammad Ali Ghahremani Aghbolagh Rostam Khan *
Department of Agricultural Machinery Engineering, University of Tehran
Abstract:
The abundance of rice straw and the environmental concerns related to its inefficient burning have prompted extensive research on its valorization into biofuels. This review presents a comprehensive analysis of the current global potential of rice straw and recent developments in understanding the key factors contributing to its recalcitrance and chemical properties. The influence of the high silica content in rice straw on enzymatic hydrolysis in a biorefinery environment is also elucidated. With the phasing out of open-field burning practices, rice growers and government agencies are seeking alternative uses for rice straw. The estimated availability of rice straw as a feedstock ranges from 1.0 to 1.4 million tonnes per annum. However, the effective utilization of this residue requires addressing issues related to its harvesting. By harnessing the potential of rice straw, agricultural operations can alleviate the challenges associated with its disposal. Additionally, diverting rice straw from open-field burning offers significant environmental benefits by reducing emissions of criteria air pollutants such as volatile organic compounds (VOCs), sulfur oxides (SOx), nitrogen oxides (NOx), and particulate matter (PM10), as well as silica emissions, which can pose health hazards despite limited monitoring.
Keywords:
Biofuel, Biomass, Crop residues, Rice straw, Life cycle assessment
Status : Paper Accepted (Poster Presentation)