通过乙醇和甲发酵过程的合,优化甜茎的能量回收效率
Bakari Hamadou1,2,3, Djomdi Djomdi3, Ruben Zieba Falama1,4
1Energy Research Laboratory, Renewable Energy Section (LRE/SENC), Institute for Geological and Mining Research (IRGM), Nlongkak Yaounde, Cameroon.
Bioengineered
|July 17, 2023
概括
这项研究结合了甜茎发酵和甲化,以促进生物能源的生产. 这两阶段的过程显著改善了生物质的整体能量回收.
科学领域:
- 生物质能源转换生物质能源转换
- 可持续的生物燃料 可持续的生物燃料
- 生物化学工程是生物化学工程.
背景情况:
- 甜茎的单阶段生物转化只产生了部分的有机物转化.
- 优化从基纤维素生物质中回收能源对于生物燃料的利性至关重要.
研究的目的:
- 评估一个两阶段的工艺,将直接发酵和甲化结合起来,以提高甜的能量生物转化.
- 提高从甜生产生物能源的整体产量,效率和利能力.
主要方法:
- 使用Saccharomyces cerevisiae,直接发酵粉碎的甜茎.
- 发酵阶段固体残留物的无氧消化 (甲化).
- 从单阶段和双阶段过程中回收能源的比较分析.
主要成果:
- 发酵产生了261.18g乙醇/公斤马氏体 (6921.27kJ/公斤马氏体).
- 甲性潜力为279 LCH4/kg DM (原始干) 和256 LCH4/kg DM (残留物).
- 合过程实现了13309.57 kJ/kg DM,占原始干能量回收的77.63%.
结论:
- 两个阶段的发酵-甲化过程显著提高了甜的能量生物转化产量.
- 这些工艺的结合为生物乙醇和生物甲生产提供了更有效和潜在的利途径.
- 这种综合方法最大限度地从整个甜干中回收能量.
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