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从酸性石油生产生物柴油的技术环境评估,通过一阶段和两阶段的化

Ni Ni Myint¹, Kongpetch Jaruensri¹, Netipon Sakulshah¹

¹Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand.

|June 9, 2025

概括

这项研究比较了从酸性油中生产一阶段和两阶段的生物柴油. 虽然两步过程在技术上是高效的,但一步方法更环保,减少全球变暖和土地使用的影响.

科学领域:

化学工程是化学工程的重要组成部分.
环境科学环境科学
生物技术是生物技术.

背景情况:

从酸油生产生物柴油是化石燃料的可持续替代品.
酸性油是从原始甘油净化中获得的,它是生物柴油生产的副产品.
技术环境评估对于优化生物柴油生产流程至关重要.

研究的目的:

评估和比较一个阶段的酸催化和两个阶段的酶/酸催化从酸油生产生物柴油的技术环境影响.
使用这两种方法,优化酸油转化为生物柴油.
分析不同能源和糖醇净化对环境足迹的影响.

主要方法:

优化反应条件,用于使用硫酸的一步性化.
开发并优化了一种两步化过程,涉及固定脂酶和硫酸.
进行了技术环境评估,比较了这两种工艺对环境的影响,考虑了能源消耗,化学品使用,废水产生和特定环境指标等因素.

主要成果:

两步过程 (SC-2) 证明了技术可行性,与单步过程 (SC-1) 相比,能耗更低,化学品使用减少,废水减少.
然而,SC-2对陆地生态毒性,人类非致癌性毒性,全球变暖潜力和土地利用的影响更大,主要是由于酶制备.
该研究确定糖醇净化是最大限度地减少环境影响和提高可持续性的关键因素.

结论:

虽然两步酶酸催化过程在技术上具有优势,但一步酸催化过程在全球变暖和土地利用方面更环保.
生物柴油生产设施应优先考虑原油甘油净化,以减轻对环境的影响.
需要进一步的研究和过程优化,以提高酶催化生物柴油生产的整体可持续性.

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