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Thermochemical conversion of microalgae biomass is a promising area of renewable energy and sustainability research when integrated into the biorefinery context. Microalgae are single-celled microorganisms that use photosynthesis, converting sunlight into chemical energy. As a result, they may accumulate a significant amount of biomass rich in lipids, carbohydrates, and proteins, making them valuable sources of raw material for energy production. Thus, this chapter describes thermochemical conversion methods that may be applied to microalgal biomass, such as pyrolysis, torrefaction, hydrothermal conversion, and gasification. These conversion methods may reduce the dependence on fossil fuels and decrease greenhouse gas emissions. In addition, the main challenges of using microalgae biomass to obtain products of interest, such as bio-oil, biochar, and synthesis gas (syngas), were also addressed.

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Thermochemical Conversion of Microalgal Biomass: A Potential Source of Bio-oil, Biochar, and Syngas

  • 章节

  • 发表日期：

    2025年

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  • Lucielen Oliveira Santos,
  • Pedro Garcia Pereira Silva,
  • Bruno Roswag Machado,
  • Izabela Queiroz Silva,
  • Munise Zaparoli,
  • Gabriela Moura Kurowiski de Brito,
  • Michele Greque de Morais,
  • Jorge Alberto Vieira Costa,
  • Ana Priscila Centeno da Rosa

摘要

Thermochemical conversion of microalgae biomass is a promising area of renewable energy and sustainability research when integrated into the biorefinery context. Microalgae are single-celled microorganisms that use photosynthesis, converting sunlight into chemical energy. As a result, they may accumulate a significant amount of biomass rich in lipids, carbohydrates, and proteins, making them valuable sources of raw material for energy production. Thus, this chapter describes thermochemical conversion methods that may be applied to microalgal biomass, such as pyrolysis, torrefaction, hydrothermal conversion, and gasification. These conversion methods may reduce the dependence on fossil fuels and decrease greenhouse gas emissions. In addition, the main challenges of using microalgae biomass to obtain products of interest, such as bio-oil, biochar, and synthesis gas (syngas), were also addressed.