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<p>Biomass-based platform chemical production has gained attention as a sustainable strategy for climate change mitigation and carbon neutrality. Furfural derived from biomass is an important intermediate for biofuels such as 2-methyltetrahydrofuran. In this study, rice husk and pine wood were subjected to ethanol organosolv pretreatment to fractionate solid residues and pretreatment liquor (black liquor). The black liquor is typically regarded as a low-value byproduct and is mainly disposed of or treated as wastewater; however, its effective utilization is essential for maximizing process efficiency and reducing overall processing cost. While acid catalytic conversion process, furfural production from black liquor was suitable for rice husk but not for pine wood. The furfural production conditions from rice husk black liquor were optimized using response surface methodology, achieving a maximum yield of 69.39% at 170&#xa0;°C, 2.0 wt% sulfuric acid, and 10&#xa0;min.</p>

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Optimization of furfural production from black liquor through ethanol organosolv pretreatment of cellulosic biomass

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月15日

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  • Hyeong Gyun Ahn,
  • Hyunjoon Kim,
  • Jun Seok Kim

摘要

Biomass-based platform chemical production has gained attention as a sustainable strategy for climate change mitigation and carbon neutrality. Furfural derived from biomass is an important intermediate for biofuels such as 2-methyltetrahydrofuran. In this study, rice husk and pine wood were subjected to ethanol organosolv pretreatment to fractionate solid residues and pretreatment liquor (black liquor). The black liquor is typically regarded as a low-value byproduct and is mainly disposed of or treated as wastewater; however, its effective utilization is essential for maximizing process efficiency and reducing overall processing cost. While acid catalytic conversion process, furfural production from black liquor was suitable for rice husk but not for pine wood. The furfural production conditions from rice husk black liquor were optimized using response surface methodology, achieving a maximum yield of 69.39% at 170 °C, 2.0 wt% sulfuric acid, and 10 min.