title: Life cycle assessment on biogas production from straw and its sensitivity analysis.
abstract: This study aims to investigate the synthetically environmental impacts and Global Warming Potentials (GWPs) of straw-based biogas production process via cradle-to-gate life cycle assessment (LCA) technique. Eco-indicator 99 (H) and IPCC 2007 GWP with three time horizons are utilized. The results indicate that the biogas production process shows beneficial effect on synthetic environment and is harmful to GWPs. Its harmful effects on GWPs are strengthened with time. Usage of gas-fired power which burns the self-produced natural gas (NG) can create a more sustainable process. Moreover, sensitivity analysis indicated that total electricity consumption and CO2 absorbents in purification unit have the largest sensitivity to the environment. Hence, more efforts should be made on more efficient use of electricity and wiser selection of CO2 absorbent.
authors.affiliation: State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, College of Energy Engineering, Zhejiang University (Yuquan Campus), Hangzhou 310027, China; Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University (Yuquan Campus), Hangzhou 310027, China.
authors.forename: Qiao-Li
authors.initials: QL
authors.lastname: Wang
authors.affiliation: Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University (Yuquan Campus), Hangzhou 310027, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.affiliation: State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, College of Energy Engineering, Zhejiang University (Yuquan Campus), Hangzhou 310027, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Gao
authors.affiliation: Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University (Yuquan Campus), Hangzhou 310027, China. Electronic address: sujing-li@zju.edu.cn.
authors.forename: Su-Jing
authors.initials: SJ
authors.lastname: Li
mesh_terms: D000327:Adsorption; D056804:Biofuels / Q000032:analysis*; D001709:Biotechnology / Q000379:methods*; D057232:Global Warming; D014866:Waste Products
chemical_list: D056804:Biofuels; D014866:Waste Products
keywords: Eco-indicator 99 (H); IPCC 2007 GWP; LCA; Sensitivity analysis; Straw biogas