基于废物的生物炼油厂的低等级甘油净化试验扩大规模和技术经济评估
Taha Attarbachi1,2, Martin Kingsley2, Vincenzo Spallina1
1Department of Chemical Engineering, University of Manchester, M13 9PL Manchester, United Kingdom.
概括
这项研究从生物柴油生产中净化低质量的原油糖醇,达到85%的纯度. 这种具有成本效益的工艺为废物糖醇的价值化提供了可行的解决方案,并产生了有价值的副产品.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 生物技术是生物技术.
- 废物管理 废物管理
背景情况:
- 生物柴油生产的副产品原油甘油,通常质量不佳,以高成本处置.
- 废物甘的利用对于可持续的生物柴油生产和循环经济原则至关重要.
研究的目的:
- 开发和演示一个可扩展的物理化学净化过程,用于废物衍生的原始甘油.
- 为了实现高纯度的甘油和从低质量的原料中回收.
主要方法:
- 物理化学净化步骤包括中和,蒸发和吸附.
- 使用Aspen Plus进行工业规模设计的过程模拟.
- 分析初始糖样本的纯度为38-57 wt%,灰含量高达16 wt%.
主要成果:
- 在2000克尺度上达到85重%的糖纯度和71%的回收.
- 中和将纯度提高到69%的重量,然后蒸发到>80%的重量.
- 工业规模模拟 (1630公斤/小时) 预测纯度为82%和回收率为77%,产生可销售的副产品盐.
结论:
- 开发的净化工艺对于升级低质量的原油甘油是有效的.
- 该工艺在经济上是可行的,预计产品成本为每19.2欧元.
- 该过程有助于废物利用和可持续生物柴油生产.
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