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双相预处理优于松木生物炼油厂的传统硫酸:环境分析
Zahra Khounani1, Normy Norfiza Abdul Razak1, Homa Hosseinzadeh-Bandbafha2
1Department Electrical Engineering, College of Engineering (CoE), Institute of Energy Infrastructure (IEI), Universiti Tenega Nasional (UNITEN), Jalan IKRAM-UNITEN, Selangor, Malaysia.
Environmental research
|January 27, 2024
概括
松片生物炼油厂的一种新的双相预处理方法,与传统方法相比,显著减少了环境影响. 这种方法降低了能源消耗,提高了有价值的生物产品产量,促进了可持续的工业实践.
科学领域:
- 生物炼油工艺 生物炼油工艺
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 松生物炼油厂生产生物乙醇,西龙酸和素.
- 生命周期评估 (LCA) 对于评估环境影响至关重要.
- 传统的硫酸预处理对环境造成重大负担.
研究的目的:
- 评估和比较一种新的双相预处理方法 (TsOH/醇) 与传统的硫酸预处理对环境的影响.
- 确定松片生物炼油工艺中对环境负担的主要贡献者.
- 评估生物炼油厂减少环境足迹的潜力.
主要方法:
- 进行了"摇篮到门"生命周期评估 (LCA).
- 两个场景进行了比较:Sc-1 (TsOH/pentanol预处理) 和Sc-2 (H2SO4预处理).
- 分析包括生物质处理,预处理,酶化水解,发酵和蒸.
主要成果:
- Sc-1的环境影响比Sc-2 (1.64E+01 kPt) 低13.05% (1.45E+01 kPt).
- 在这两种情景中,发电是主要的环境因素 (99.05%).
- 与Sc-2相比,sc-1的生物乙醇 (32.61%) 和氧化 (29.28%) 的贡献较高.
结论:
- 双相TsOH/pentanol预处理方法为基于木材的生物炼油厂提供了更可持续的替代方案.
- 预处理方法的选择极大地影响了生物炼油厂的整体环境性能.
- 减少电力消耗和采用更绿色的能源对于最大限度地减少生物炼油厂的环境足迹至关重要.
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