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The effects of Cr addition in HZSM-5 on its structure, physicochemical and catalytic properties for methyl mercaptan abatement
Catalysis Communications ( IF 3.7 ) Pub Date : 2018-04-16
Dedong He, Jie Yu, Yi Mei, Jiangping Liu, Yutong Zhao, Shuang Yang, Xiaohua Cao, Sufang He, Yongming Luo

HZSM-5 and Cr/HZSM-5 solids were prepared and tested as potentially appropriate catalytic materials for CH3SH abatement for the first time. The effect of Cr loading on the physicochemical properties of HZSM-5 and its catalytic activity in CH3SH conversion and its products of decomposition were investigated and discussed. It was found that Cr/HZSM-5 is much more active than pure HZSM-5, where CH3SH can be completely converted at 450 °C as opposed to pure HZSM-5 (600 °C). However, an excessive loading of Cr species caused active Cr species not to be stabilized on the HZSM-5 zeolite support, resulting in no improvement of catalytic activity with increasing Cr loading.



中文翻译:

HZSM-5中铬的添加对其结构,理化性质和催化甲基硫醇催化性能的影响

制备了HZSM-5和Cr / HZSM-5固体,并首次将其作为潜在的合适的催化材料进行了CH 3 SH减排。研究和讨论了铬的负载量对HZSM-5的理化性质及其在CH 3 SH转化中的催化活性及其分解产物的影响。发现Cr / HZSM-5比纯HZSM-5更具活性,与纯HZSM-5(600°C)相比,纯CHZSM-5可以在450°C完全转化CH 3 SH。但是,Cr种类的过量负载导致活性Cr种类不能稳定在HZSM-5沸石载体上,因此随着Cr含量的增加,催化活性没有改善。

更新日期:2018-04-25
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