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Assessing the aggregated environmental benefits from by-product and utility synergies in the Swedish biofuel industry

机译：评估瑞典生物燃料工业的副产品和公用事业协同效应的汇总环境效益

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摘要

The production of biofuels in Sweden has increased significantly in the past years in order to reduce fossil fuel dependence and mitigate climate impacts. Nonetheless, current methodological guidelines for assessing the GHG savings from the use of biofuels do not fully account for benefits from by-products and other utilities (e.g. waste heat and electricity) from biofuel production. This study therefore reviews the aggregated environmental performance of these multi-functional biofuel systems by assessing impacts and benefits from relevant production processes in Sweden in order to improve the decision base for biofuel producers and policymakers in the transition to a bio-based and circular economy. This was done by (1) conducting a mapping of the Swedish biofuel production portfolio, (2) developing future production scenarios, and (3) application of life cycle assessment methodology to assess the environmental performance of the production processes. Special focus was provided to review the potential benefits from replacing conventional products and services with by-products and utilities. The results provide evidence that failure to account for non-fuel-related benefits from biofuel production leads to an underestimation of the contribution of biofuels to reduce greenhouse gas emissions and other environmental impacts when replacing fossil fuels, showing the importance of their multi-functionality.
机译：在过去几年中，瑞典的生物燃料的生产显着增加，以减少化石燃料依赖性并减轻气候影响。尽管如此，用于评估使用生物燃料的GHG节省的目前的方法论指南并没有完全占副产品和其他公用事业（例如废热和电力）从生物燃料生产中的益处。因此，本研究通过评估瑞典相关生产流程的影响和利益，以改善生物燃料生产者和政策制定者在转型到生物和循环经济的转型中的决策基础，审查这些多功能生物燃料系统的汇总环境绩效。这是由（1）进行瑞典生物燃料生产投资组合的映射，（2）发展未来的生产情景，（3）生命周期评估方法的应用，评估生产过程的环境绩效。提供了特别重点，审查潜在的福利，以替代常规产品和服务的副产品和公用事业。结果提供了证据表明，未能考虑生物燃料生产中非燃料相关的益处导致在更换化石燃料时低估了生物燃料对减少温室气体排放和其他环境影响的贡献，呈现了它们的多功能性的重要性。

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