微藻生物质的双重分解以实现成本效益高的生物甲生产:能源和成本评估
Yukesh Kannah Ravi1, S Kavitha2, Siham Y Al-Qaradawi3
1Centre for Organic and Nanohybrid Electronics, Silesian University of Technology, Konarskiego 22B, 44-100 Gliwice, Poland.
Bioresource technology
|March 24, 2024
概括
结合热化学和细菌方法的双重分解过程显著提高了微藻生物甲的生产. 这种增强的方法显示了可再生能源的商业化潜力.
科学领域:
- 生物技术是生物技术.
- 可再生能源可再生能源是可再生能源.
- 环境科学 环境科学
背景情况:
- 微藻类是生物甲生产的有希望的原料.
- 有效地分解微藻细胞壁对于最大限度地提高生物气产量至关重要.
- 当前的分解方法在效率和成本效益方面存在局限性.
研究的目的:
- 通过使用一种新的双重分解过程,从微藻中增强生物甲的生产.
- 与单个方法相比,评估结合热化学 (TC) 和细菌分解 (BD) 的有效性.
- 评估拟议方法的经济可行性和能源效率.
主要方法:
- 微藻生物质经历了热化学分解 (50-80°C,NaOH pH 6-10,0-10分钟).
- 在TC之后,生物质经历了细菌分解 (BD).
- 测量了生物甲潜力,挥发性脂肪酸 (VFA) 积累和无氧生物降解性.
主要成果:
- 结合TC-BD分解实现了生物甲生产的33%提升.
- TC-BD导致显著更高的VFA积累 (2816 mg/L) 和基质生物降解性 (0.32 g COD/g COD).
- 在TC-BD过程中,净利呈正值 (+0.12 GJ/d),能源比率为1.03.
结论:
- 双TC-BD分解对于增强微藻生物甲生产非常有效.
- 与单步方法相比,该过程提供了更好的VFA积累和生物降解性.
- 双重分解方法显示出在可再生能源生产中商业应用的巨大潜力.
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