软木粉的深度环氧溶剂预处理 - 对生物质组成,提取和无氧降解性的影响
Simel Bagder Elmaci1, Jana Schultz2, Asli Isci1
1Ankara University, Food Engineering Department, 06830 Golbasi, Ankara, Turkey.
Waste management (New York, N.Y.)
|April 12, 2024
概括
深度浸泡溶剂 (DES) 有效地从软木粉中提取化合物,增强其生物气生产潜力. 通过提高无氧降解性,DES预处理可增加高达125%的生物气产量.
科学领域:
- 生物质预处理 生物质预处理
- 可再生能源生产可再生能源的生产.
- 绿色化学 绿色化学
背景情况:
- 软木粉是一种丰富的纤维纤维素废物材料.
- 对软木粉的利用可以带来可持续的能源和有价值的化学品生产.
- 深度环氧化溶剂 (DES) 为生物质加工提供了可调和环保的介质.
研究的目的:
- 通过使用DES从软木粉中提取化合物的研究.
- 评估DES预处理对软木粉生物气生产潜力的影响.
- 确定最佳的DES处理条件,以最大限度地提取和生物气产量.
主要方法:
- 在不同的温度 (90-130°C) 和时间 (20-60分钟) 中,使用由胆化物和酸组成的DES处理软木灰尘.
- 使用酸等效 (GAE) 方法量化醇含量,并通过DPPH抑制评估抗氧化能力.
- 使用无氧消化测量生物气产量,使用SEM,成分和FTIR分析分析结构变化.
主要成果:
- 最高的含量 (137 mg GAE/g) 和抗氧化能力 (56.3% DPPH 抑制) 在110°C/20分钟时实现.
- 特别是在严重条件下 (130°C/60分钟) 的DES处理导致了显著的西兰降解 (42%).
- 对于经过DES处理的软木粉尘,生物气产量增加了高达125% (115.1mL N / g VS),与纤维素含量增加和半纤维素溶解度相关.
结论:
- DES预处理是一种有效的方法,可以增强粉的化合物提取和无氧降解能力.
- 优化的DES处理条件可以显著提高从纤维素生物质的沼气生产.
- 这种方法为软木废弃物的利用提供了一个可持续的途径,将其转化为有价值的化学品和可再生能源.
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