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Effect of Organic Additives on the Structure and Hydrotreating Activity of a CoMoS/Multiwalled Carbon Nanotube Catalyst
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-11-13 , DOI: 10.1021/acs.iecr.0c03915 Yulia V. Vatutina 1, 2 , Mariya A. Kazakova 1, 2 , Evgeny Yu. Gerasimov 1 , Igor P. Prosvirin 1 , Oleg V. Klimov 1 , Alexander S. Noskov 1 , Maxim O. Kazakov 1
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-11-13 , DOI: 10.1021/acs.iecr.0c03915 Yulia V. Vatutina 1, 2 , Mariya A. Kazakova 1, 2 , Evgeny Yu. Gerasimov 1 , Igor P. Prosvirin 1 , Oleg V. Klimov 1 , Alexander S. Noskov 1 , Maxim O. Kazakov 1
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A comparative study of the effect of citric acid (CA), nitrilotriacetic acid (NTA), and diethylene glycol (DEG) used for the preparation of impregnation solution on the properties and catalytic performance of CoMoS/multiwalled carbon nanotube (MWCNT) hydrotreating catalyst was carried out. For a deeper understanding of the role of organic additives during CoMoS catalyst preparation, thermal analysis, nitrogen physisorption, X-ray photoelectron spectroscopy, and high-resolution transmission electron microscopy were applied. It was shown that the use of various additives resulted in the formation of CoMoS/MWCNT catalysts with a similar morphology of sulfide particles and similar textural characteristics. However, depending on the type of the additive used, the catalysts exhibited different activities in hydrodesulfurization and hydrodenitrogenation, which changed in the following order: CoMoS–CA > CoMoS–NTA > CoMoS–DEG. CA was found to be the most effective organic additive to the impregnation solution that results in a significant improvement in the activity of the CoMoS catalyst in dibenzothiophene and quinoline conversion as compared to NTA and DEG.
中文翻译：
有机添加剂对CoMoS /多壁碳纳米管催化剂的结构和加氢处理活性的影响
比较了柠檬酸（CA），次氮基三乙酸（NTA）和二甘醇（DEG）制备浸渍溶液对CoMoS /多壁碳纳米管（MWCNT）加氢处理催化剂的性能和催化性能的影响。执行。为了更深入地了解有机添加剂在CoMoS催化剂制备中的作用，应用了热分析，氮物理吸附，X射线光电子能谱和高分辨率透射电子显微镜。结果表明，使用各种添加剂导致形成了具有类似硫化物颗粒形态和相似结构特征的CoMoS / MWCNT催化剂。但是，根据所用添加剂的类型，催化剂在加氢脱硫和加氢脱氮中表现出不同的活性，更改顺序如下：CoMoS–CA> CoMoS–NTA> CoMoS–DEG。发现CA是浸渍溶液中最有效的有机添加剂，与NTA和DEG相比，可显着提高CoMoS催化剂在二苯并噻吩和喹啉转化中的活性。
更新日期：2020-11-25
中文翻译：
有机添加剂对CoMoS /多壁碳纳米管催化剂的结构和加氢处理活性的影响
比较了柠檬酸（CA），次氮基三乙酸（NTA）和二甘醇（DEG）制备浸渍溶液对CoMoS /多壁碳纳米管（MWCNT）加氢处理催化剂的性能和催化性能的影响。执行。为了更深入地了解有机添加剂在CoMoS催化剂制备中的作用，应用了热分析，氮物理吸附，X射线光电子能谱和高分辨率透射电子显微镜。结果表明，使用各种添加剂导致形成了具有类似硫化物颗粒形态和相似结构特征的CoMoS / MWCNT催化剂。但是，根据所用添加剂的类型，催化剂在加氢脱硫和加氢脱氮中表现出不同的活性，更改顺序如下：CoMoS–CA> CoMoS–NTA> CoMoS–DEG。发现CA是浸渍溶液中最有效的有机添加剂，与NTA和DEG相比，可显着提高CoMoS催化剂在二苯并噻吩和喹啉转化中的活性。
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