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Information × Registration Number 0223U005006, 0123U103125 , R & D reports Title Study of the relationship between the change in the physicochemical characteristics of the industrial catalyst CHM-Y and its catalytic activity popup.stage_title Head Baran Mariia M., Registration Date 12-12-2023 Organization V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine popup.description2 According to the task of the first stage, a laboratory installation of the flow-circulation type was created, equipped with a generator of vibration-acoustic oscillations, which allows to conduct research of the hydrogenation process of carbon oxides in a wide frequency range with the use of classical granular catalysts. The mechanical and physical influence on the SNM-U industrial catalyst was carried out. The effect of vibrational-acoustic oscillations during the hydrogenation reaction of carbon oxides on the structural and morphological characteristics of the SNM-U industrial catalyst was investigated. In the course of research, it was established that the use of vibration-acoustic oscillations in the process of hydrogenation of carbon oxides leads to some changes in the structural and morphological characteristics of the SNM-U industrial catalyst, which, according to the literature, will contribute to an increase in catalytic activity. According to the XRD data, it was shown that the copper crystallite size after vibration-acoustic oscillations decreased to 10.28 nm compared to 12.70 nm for the reduced SNM-U catalyst. The DTG method was found to show two sharp increases in the mass of the catalyst sample after vibration-acoustic oscillations, corresponding to peaks at 148 °C and 241 °C, which may indicate the oxidation of copper to Cu2O and CuO. It was established, according to DSC data, that the use of vibration-acoustic oscillations allows after the process to obtain reduced reactive Cu0 at 145 °C versus 158 °C, compared to reduced SNM-U. It was shown by the low-temperature nitrogen adsorption-desorption method that all catalyst samples have an isotherm with a type IV hysteresis loop, which indicates the presence of mesopores. It was established that the pore volume and specific surface area of the restored SNM-U and after vibration-acoustic oscillations are practically the same. Product Description popup.authors Baran Mariia M. popup.nrat_date 2023-12-12 Close