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<p>Since the Industrial Revolution, rising atmospheric CO₂ concentrations have been a major driver of climate change. To combat this, alternative energy sources, such as biomass, are being actively explored for their potential to replace fossil fuels and act as carbon sinks. Among these, microalgae are particularly promising due to their rapid growth and high lipid content. This study focuses on the cultivation of marine microalgae at a 200-L scale to produce renewable hydrocarbons via a one-pot hydrodeoxygenation (HDO) process. Two microalgal strains, <i>Nannochloris</i> sp. (NRRE-1) and <i>Nannochloropsis</i> sp. (NSRE-1), were evaluated. A NiMo/ZSM- 5-SBA- 15 catalyst was synthesized for the HDO process, which resulted in hydrocarbon yields exceeding 90%, with products ranging from C<sub>2</sub> to C<sub>16</sub>. The final liquid hydrocarbons were composed of isoparaffins (36.06% NRRE-1 and 37.31% NSRE- 1) and cycloparaffins (30%), with minimal amounts of aromatics and oxygenated compounds and no olefins. These findings highlight the potential of marine microalgae as a sustainable feedstock for producing high-quality, third-generation biofuels.&#xa0;</p> Graphical Abstract <p></p>

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Renewable liquid hydrocarbons from marine microalgae lipids via one-pot hydrodeoxygenation (HDO) reaction

  • 期刊论文

  • 发表日期：

    2025年4月7日

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  • Cristina Isabel Carrillo-Yam,
  • Juan Carlos Chavarría-Hernández,
  • Gabriela Palomino-Albarrán,
  • José Roberto Contreras Bárbara,
  • Tanit Toledano-Thompson,
  • Gilver Rosero-Chasoy,
  • Ruby Valdez-Ojeda

摘要

Since the Industrial Revolution, rising atmospheric CO₂ concentrations have been a major driver of climate change. To combat this, alternative energy sources, such as biomass, are being actively explored for their potential to replace fossil fuels and act as carbon sinks. Among these, microalgae are particularly promising due to their rapid growth and high lipid content. This study focuses on the cultivation of marine microalgae at a 200-L scale to produce renewable hydrocarbons via a one-pot hydrodeoxygenation (HDO) process. Two microalgal strains, Nannochloris sp. (NRRE-1) and Nannochloropsis sp. (NSRE-1), were evaluated. A NiMo/ZSM- 5-SBA- 15 catalyst was synthesized for the HDO process, which resulted in hydrocarbon yields exceeding 90%, with products ranging from C2 to C16. The final liquid hydrocarbons were composed of isoparaffins (36.06% NRRE-1 and 37.31% NSRE- 1) and cycloparaffins (30%), with minimal amounts of aromatics and oxygenated compounds and no olefins. These findings highlight the potential of marine microalgae as a sustainable feedstock for producing high-quality, third-generation biofuels. 

Graphical Abstract