Simulating Carbon Emissions from Biogas Production : A Life Cycle Perspective to Straw-Based Biogas production in Baotou, China
2025
Ma, Yizheng
This study evaluates the carbon emissions associated with straw-based biogas production in Baotou, China, using a life cycle perspective. As part of China’s commitment to achieving carbon neutrality by 2060, the research focuses on the greenhouse gas emissions from the collection, transportation, and production of biogas from agricultural waste, aiming to replace conventional fossil fuels with renewable energy. The study compares three scenarios involving varying levels of straw pretreatment, examining their impacts on diesel consumption, electricity use, and CO₂ emissions. The results highlight significant trade-offs: while basic pretreatment (Scenario 2) reduces diesel usage and carbon emissions effectively, advanced pretreatment (Scenario 3) introduces high electricity demand that offsets its benefits. Across all scenarios, biogas production consistently mitigates approximately 333 million kilograms of CO₂ annually, demonstrating its potential as a cornerstone of Baotou’s carbon neutrality strategy. The findings emphasize the importance of optimizing pretreatment processes, transportation logistics, and renewable energy adoption to achieve sustainable biogas production. Scenario 2 emerges as the most balanced approach under current conditions, offering a practical pathway for reducing Baotou's carbon footprint.
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