Life cycle assessment of upgraded microalgae-to-biofuel chains

Wei Wu, Yi Chun Lei, Jo Shu Chang

研究成果: Article

3 引文 斯高帕斯(Scopus)

摘要

Two individual chains of microalgae-to-diesel and microalgae-to-butanol were upgraded through process integration and design. According to life cycle assessment (LCA)standards, the two proposed chains were compared in terms of 17 categories of LCA impacts and the sensitivity analysis of LCA impacts on two chains with different lipid or carbohydrate content of microalgae cells was performed. Based on the prescribed specifications and conditions for microalgae cultivation, pretreatment and purity level of the products, LCA analysis revealed that the annual ReCiPe end point score of producing 1 kg biobutanol is lower than that of 1 kg biodiesel by 54.4%. The upgraded microalgae-to-butanol chain could reduce the annual ReCiPe end point score of producing 100 MJ diesel/gasoline from crude oil by 5–10%. The microalgae-to-butanol chain is more ecofriendly than the microalgae-to-diesel chain due to lower LCA impacts such as Climate change human health, Climate change ecosystems, and Fossil depletion.

原文English
文章編號121492
期刊Bioresource technology
288
DOIs
出版狀態Published - 2019 九月

    指紋

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

引用此