将糖醇再循环转化为黄酸:与生物柴油厂的可持续整合
Diego A R Ordóñez1, Francisco J B T L Strunck1, Luciana S Dutra2
1Departamento de Engenharia Química e de Materiais, Pontifícia Universidade Católica do Rio de Janeiro CP 38097, Rio de Janeiro, RJ 22451-900, Brazil.
Bioresource technology
|May 26, 2025
概括
从原始甘油中生产生物基的黄酸提供了一个可持续的替代方案,减少了47%的气候影响,并证明经济可行. 进一步优化是提高生物炼油厂竞争力的关键.
科学领域:
- 生物技术和绿色化学
- 工业生物技术 工业生物技术
- 可持续的化学生产
背景情况:
- 作为生物柴油生产的副产品,原油甘是一种低价值的废物流.
- 原油甘的价值化对于生物柴油行业的经济可行性和可持续性至关重要.
- 开发高效的生物工艺来将原始甘油转化为高价值化学品是一个活跃的研究领域.
研究的目的:
- 评估从原始甘油中生产生物基酸的工业潜力.
- 为了比较不同的生产场景,包括独立设施和与生物柴油厂集成.
- 评估这些生物基酸生产途径的环境和经济性能.
主要方法:
- 使用Yarrowia lipolytica,一种酵母菌株,从原始甘油中发酵酸.
- 生命周期评估 (LCA) 用于量化气候变化影响.
- 技术经济分析 (TEA) 用于评估经济可行性和回报期.
主要成果:
- 从原始甘油生产酸 (情景1) 与使用纯甘油 (情景2) 相比,减少了47%的气候变化影响.
- 将酸生产与生物柴油运营 (情景3) 整合,提高了经济表现,但相对于独立生物柴油生产,二氧化碳排放量增加了54%.
- 所有评估的场景都显示出经济可行性,回报期低于7年.
结论:
- 将原始甘油再循环转化为生物基酸是一种支持循环经济原则的可行策略.
- 进一步优化能源消耗和溶剂回收是必要的,以提高这些过程的竞争力.
- 这项研究为生物炼油厂的可持续发展和工业副产品的价值化提供了宝贵的见解.
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