商业载体上cu - zn催化剂上CO2制甲醇：载体和反应条件的影响

IF 0.7 4区化学 Q4 CHEMISTRY, PHYSICAL

Russian Journal of Physical Chemistry A Pub Date : 2025-01-17 DOI:10.1134/S0036024424702546

A. M. Batkin, M. A. Tedeeva, K. B. Kalmykov, A. V. Leonov, N. A. Davshan, P. V. Pribytkov, S. F. Dunaev, I. P. Beletskaya, A. L. Kustov

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引用次数: 0

摘要

研究了Cu-Zn催化剂在Al2O3、SiO2、ZrO2（La）、TiO2、ZnO和活性炭等工业载体上对CO2加氢制甲醇反应的催化性能。CuZn/Al2O3催化剂对CO2的转化率最高。CuZn/ZrO2（La）和CuZn/SiO2催化剂对甲醇的选择性最高，分别为99%和97.5%，而对CH3OH的选择性在175 ~ 275℃范围内达到90 ~ 95%。在CuZn/ZrO2（La）催化剂上，甲醇产率最高可达547 g/(kgkat h)。通过低温氮吸附、x射线衍射和SEM-EDX对合成的催化剂进行了研究。

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Producing Methanol from CO2 on Cu–Zn-Catalyst on Commercial Supports: Effect of the Support and Conditions of the Reaction

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Producing Methanol from CO2 on Cu–Zn-Catalyst on Commercial Supports: Effect of the Support and Conditions of the Reaction

The catalytic properties of Cu–Zn catalysts are investigated on such commercial supports as Al₂O₃, SiO₂, ZrO₂(La), TiO₂, ZnO, and activated carbon in the reaction of CO₂ hydrogenation with the production of methanol. CuZn/Al₂O₃ catalyst displays the highest conversion of CO₂. The highest selectivities toward methanol (99 and 97.5%) are observed for CuZn/ZrO₂(La) and CuZn/SiO₂ catalysts, respectively, while high values of selectivity toward CH₃OH (90–95%) are achieved in the 175–275°C range of temperatures. The highest methanol productivity is 547 g/(kg_kat h) on catalyst CuZn/ZrO₂(La). The synthesized catalysts are studied via low-temperature nitrogen adsorption, X-ray diffraction, and SEM-EDX.

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来源期刊

Russian Journal of Physical Chemistry A 化学-物理化学

CiteScore

1.20

自引率

14.30%

发文量

376

审稿时长

5.1 months

期刊介绍： Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world. Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.