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The rapid development of modern economic society comes at the cost of massive fossil energy consumption, which, in turn, restricts the sustainable improvement of global society due to the limited reserves of conventional energy and the severe ecological and environmental issues caused by energy overuse (Kocar and Civas in Renew. Sustain. Energy Rev. 28:900–916, 2013; Zhou et al. in Nat. Energy 3:925–935, 2018). Therefore, humanity must seek clean alternatives to support continuous economic growth and alleviate the ongoing energy crisis. Biomass, as the only carbon-containing renewable energy and the fourth largest energy reserve after coal, petroleum, and natural gas, shows great potential and has attracted extensive attention over the past decade (Amjith and Bavanish in Chemosphere 293, 2022; Ma et al. in Sci. Total Environ. 806, 2022). Microalgae, as the third-generation biomass for energy production, stands out due to its various advantages, including high photosynthetic efficiency, fast growth rate, strong environmental adaptability, and minimal competition with agricultural land (Huang and Yuan in Prog. Energy Combust. Sci. 49:59–80, 2015; Peterson et al. in Energy Environ. Sci. 1:32–65, 2008). Furthermore, due to the high moisture content of microalgae, HTL technology, which operates in sub-/supercritical water (240–380 °C, 5–30 MPa), is an efficient process for converting “wet” microalgae without the need for drying (Brindhadevi et al. in Fuel 285:106–119, 2021; Sharma et al. in Renew. Energy 174:810–822, 2021).

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A Review on Recent Advances in Clean Microalgal Bio-oil Production via Catalytic Hydrothermal Deoxygenation

  • 章节

  • 发表日期：

    2025年

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  • Yang Guo,
  • Donghai Xu,
  • Shuzhong Wang

摘要

The rapid development of modern economic society comes at the cost of massive fossil energy consumption, which, in turn, restricts the sustainable improvement of global society due to the limited reserves of conventional energy and the severe ecological and environmental issues caused by energy overuse (Kocar and Civas in Renew. Sustain. Energy Rev. 28:900–916, 2013; Zhou et al. in Nat. Energy 3:925–935, 2018). Therefore, humanity must seek clean alternatives to support continuous economic growth and alleviate the ongoing energy crisis. Biomass, as the only carbon-containing renewable energy and the fourth largest energy reserve after coal, petroleum, and natural gas, shows great potential and has attracted extensive attention over the past decade (Amjith and Bavanish in Chemosphere 293, 2022; Ma et al. in Sci. Total Environ. 806, 2022). Microalgae, as the third-generation biomass for energy production, stands out due to its various advantages, including high photosynthetic efficiency, fast growth rate, strong environmental adaptability, and minimal competition with agricultural land (Huang and Yuan in Prog. Energy Combust. Sci. 49:59–80, 2015; Peterson et al. in Energy Environ. Sci. 1:32–65, 2008). Furthermore, due to the high moisture content of microalgae, HTL technology, which operates in sub-/supercritical water (240–380 °C, 5–30 MPa), is an efficient process for converting “wet” microalgae without the need for drying (Brindhadevi et al. in Fuel 285:106–119, 2021; Sharma et al. in Renew. Energy 174:810–822, 2021).