生物柴油废水的催化燃烧在红泥催化剂上
Shangzhi Yu1, Wenyu Yuan1, Qinglong Xie1
1Biodiesel Laboratory of China Petroleum and Chemical Industry Federation, Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China.
Materials (Basel, Switzerland)
|February 13, 2025
概括
红泥 (RM) 催化剂有效地处理生物柴油废水. 最好的催化剂在350°C时化,实现了100%的化学氧气需求去除,展示了有效的废物到废物回收利用.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
背景情况:
- 红泥 (RM) 是一种具有资源利用潜力的工业废物产品.
- 生物柴油废水的有效处理对于环境保护至关重要.
- 开发用于废水处理的高效催化剂是一个正在进行的研究领域.
研究的目的:
- 在各种化温度下合成红泥 (RM) 催化剂.
- 评估RM催化剂在生物柴油废水燃烧中的催化活性.
- 了解化温度对催化剂性能和性能的影响.
主要方法:
- 红泥催化剂是用一种简单的方法合成的,使用不同的烧焦温度.
- 通过测量生物柴油废水中化学氧需求 (COD) 的去除来评估催化活性.
- 催化剂的表征包括特定的表面积,孔隙结构分析,以及铁氧化物 (Fe2O3) 阶段和分散的识别.
主要成果:
- 在350°C (RM350) 烧焦的红泥催化剂表现出最佳的催化活性.
- RM350从生物柴油废水中实现了几乎完全的COD去除 (100%),将COD降低到0 mg/L.
- RM催化剂表现出高特异性表面积 (60.03-64.15 m2/g) 和低于400°C的中孔结构.
- 在RM催化剂表面上的无形Fe2O3提高了可还原性和利用效率,性能优于α-Fe2O3催化剂.
结论:
- 化温度显著影响生物柴油废水处理的红泥的催化性能.
- 在350°C下合成的RM催化剂在消除化学氧气需求方面非常有效,提供可持续的废物到废物解决方案.
- 优化的催化剂结构,包括高表面积,中度和分散的无形Fe2O3,有助于其优越的催化活性.
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