抄録
Recently, emphasis has been given on the production of bioethanol from lignocellulosic biomass which is recognized as an alternative to fossil fuels not only to reduce reliance on foreign fuels and improve energy security but also to achieve the environmental benefits. Lignocellulosic bioethanol is produced by different pretreatment and enzymatic hydrolysis processes. This study attempts to evaluate the life cycle of bioethanol produces from rice straw by room temperature (RT)-CaCCO [Calcium Capturing by Carbonation (CO2)] process considering three scenarios to estimate the energy balance, CO2 emission and production cost to find a cost effective and environmentally friendly process. The energy balance, CO2 emission and production cost is found to be dependent on the adopted scenarios. A shift in scenarios reduces the environmental load, production cost and would help to compete with its counterpart (gasoline) and may encourage more investment in this sector.
