探索竞争性化合物和催化剂合成方法在DBT氧化脱硫中使用MoO3-V2O5/Al2O3催化剂的影响
Alireza Hosseini1, Seyed Mehdi Alavi2, Amin Bazyari1
1Catalyst and Nano Material Research Laboratory (CNMRL), School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, Iran.
Environmental science and pollution research international
|December 26, 2023
概括
这项研究开发了一种双金属催化剂 (MoO3-V2O5/Al2O3),用于燃料的高效氧化脱硫 (ODS). 联合浸泡方法产生了一种催化剂,在30分钟内从二二二烯中完全去除了硫化合物.
科学领域:
- 催化剂是一种催化剂.
- 环境化学环境化学
- 材料科学 材料科学 材料科学
背景情况:
- 减少燃料中的硫含量对于环境保护至关重要.
- 氧化脱硫 (ODS) 是一种有效的去除硫化合物的方法.
- 双金属催化剂在催化过程中提供了更高的效率.
研究的目的:
- 开发和评估一种用于高效氧化脱硫 (ODS) 的新型双金属催化剂.
- 通过连续和共同浸方法制备的MoO3-V2O5/Al2O3的催化性能.
- 在各种条件下评估催化剂在去除二二二烯 (DBT) 的有效性.
主要方法:
- 使用连续浸和共同浸制备MoO3-V2O5/Al2O3催化剂.
- 使用XRD,N2吸附-脱附,UV-vis DRS,NH3-TPD,拉曼,FTIR,FE-SEM和EDS进行催化剂表征.
- 评估使用H2O2和TBHP作为氧化剂的二西欧芬 (DBT) 的ODS过程.
主要成果:
- 共同浸催化剂 (5M-15V-co) 显示出显著的酸性位点和高的ODS效率.
- 在30分钟内完成了DBT中硫成分的完全氧化.
- 催化剂在含化合物 (NCC) 和碳化合物 (HC) 的存在下表现出有效性,在NCCs的存在下,DBT在60分钟内完全氧化.
- 最佳的O/S比率使得硫除去率从30%提高到90%.
结论:
- 同浸双金属催化剂对于氧化脱硫是非常有效的.
- 催化剂的性能受到NCC和HC等竞争化合物的存在的影响.
- 优化氧化剂与硫的比率是最大限度地提高除硫效率的关键.
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