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来自热水碳化的酸性工艺流体改善了废PVC的脱,并产生了干净的固体和液体燃料
Vahab Ghalandari1, Toufiq Reza1
1Department of Chemistry and Chemical Engineering, Florida Institute of Technology, 150 West University Boulevard, Melbourne, FL, 32901, USA.
Chemosphere
|August 1, 2024
概括
这项研究使用酸性水热处理与皮液处理废PVC,达到97.57%的脱. 这一过程将废PVC转化为具有更高加热值的有价值的清洁燃料.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
背景情况:
- 废弃的聚乙烯化物 (WPVC) 由于其含量而带来了环境挑战.
- 水热处理 (HTT) 是WPVC的一个潜在的上循环方法.
- 添加酸增加了HTT脱,但造成了成本和废水问题.
研究的目的:
- 调查使用皮水热碳化 (HTC) 的酸性工艺流体来增强HTT期间WPVC脱的使用.
- 评估这种酸性热水处理 (AHTT) 在去除和生产有价值产品方面的效率.
- 确定最大限度地提高脱和燃料性能的最佳条件.
主要方法:
- 实验使用一批反应器进行,用于WPVC的酸性热水处理 (AHTT).
- 温度在300-350°C之间,治疗时间在0.25-4小时之间.
- 分析了脱效率,固体产量以及由此产生的煤炭和原油的特性.
主要成果:
- 在350°C和1小时时达到97.57%的最大脱效率.
- 固体产量随着温度的增加而下降,而煤炭和原油的高加热值 (HHV) 随着处理时间和温度的增加而增加.
- 在AHTT过程中,生产了富含和化合物的原油,其中相当一部分适用于汽油,煤油和柴油.
结论:
- 使用皮液的酸性热水处理 (AHTT) 是回收废PVC的有效方法.
- 该过程成功地去除了,产生了更清洁的固体炭和有价值的液体燃料.
- AHTT为废弃PVC管理和资源回收提供了一种可持续且具有成本效益的方法.
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