Economic and Environmental Assessment of Biogas Production from Straw

摘要

A cost combined life cycle assessment was carried out to estimate the economic and environmental impact of biogas production from corn straw. Results showed that the pipeline transport, electricity, and chemicals production stages represented the dominant contribution to environmental impact in most midpoint categories, whereas infrastructure, waste treatment, pipeline transport, and raw materials (e.g., straw, chemicals, coal, diesel) price played an important role to economic impact. Results indicate that it is very difficult to develop the technology of straw for biogas production in China in case without a national financial support. In addition, optimizing the efficiency of raw material consumption and decreasing the pipeline transport distance are effective way to decrease the both overall environmental and economic burden.