Liu Zhenxin, Wu Depeng, Liu Huiwen, Gao Yuji, Guo Xuehui, Zhao Chenxi, Xing Yu
Henan Provincial Key Laboratory of Surface and Interface Science, School of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, China.
Chem Asian J. 2024 Jul 2;19(13):e202400375. doi: 10.1002/asia.202400375. Epub 2024 May 28.
Methane and its oxidation product (i. e., CO) are both greenhouse gases. In the product chain of CO hydrogenation to hydrocarbon reaction, methane is also an unwanted product due to its poor added value. Herein we investigated the effect of structure-directing agent urotropine on cobalt-based catalyst supported on Al-O-Zn type carrier and achieved an initial and pioneering exploration of methane-free CO hydrogenation to hydrocarbon reaction at mild CO conversion range. The catalyst modified by urotropine has a nanoflower micromorphology and can significantly change the reaction performance, almost completely eliminating the ability of the catalyst to inhibit C-C coupling within a mild CO conversion range, that is, it can produce no or less C-C gaseous hydrocarbons, while rich in condensed hydrocarbons (i. e., C hydrocarbon selectivity can reach as high as 92.8 %-100.0 %).
甲烷及其氧化产物（即一氧化碳）均为温室气体。在一氧化碳加氢制烃反应的产物链中，甲烷因其附加值低也是一种不受欢迎的产物。在此，我们研究了结构导向剂乌洛托品对负载在Al-O-Zn型载体上的钴基催化剂的影响，并在温和的一氧化碳转化率范围内对无甲烷一氧化碳加氢制烃反应进行了初步的开创性探索。经乌洛托品改性的催化剂具有纳米花微观形貌，能显著改变反应性能，在温和的一氧化碳转化率范围内几乎完全消除了催化剂抑制碳-碳偶联的能力，即它可以不产生或少产生碳-碳气态烃，同时富含缩合烃（即碳氢化合物选择性可达92.8% - 100.0%）。
