Coating the Internal Surface of a Capillary Microreactor for the Selective Hydrogenation of 2-Methyl-3-Butyn-2-ol by PdxZn1 – x/TiO2 Catalysts: A Kinetic Study Full article
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Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2018, Volume: 59, Number: 4, Pages: 450-458 Pages count : 9 DOI: 10.1134/s0023158418040092 | ||||
| Tags | 2-methyl-3-butyn-2-ol hydrogenation, kinetic simulation, PdZn nanoparticles, thin films, mesoporous titanium dioxide | ||||
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| Affiliations |
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Funding (1)
| 1 | Federal Agency for Scientific Organizations | 0303-2016-0004 |
Abstract:
The kinetics of the liquid-phase hydrogenation of 2-methyl-3-butyn-2-ol (MBI) on the thin films of Pd50Zn50/TiO2, Pd80Zn20/TiO2, and Pd/TiO2 was studied in a temperature range of 308–333 K at MBI concentrations of 0.1–0.6 mol/L. The films were applied to the internal walls of silica capillaries with an inside diameter of 530 μm. The reaction of MBI hydrogenation at its initial stage was of first order with respect to hydrogen, and the orders of reaction with respect to MBI on Pd50Zn50/TiO2, Pd80Zn20/TiO2, and Pd/TiO2 were 0.3, 0.4, and 0.5, respectively. The yield of the target product 2-methyl-3-buten-2-ol on the bimetallic films was higher than that on Pd/TiO2. The highest yield (94%) was achieved on the film of Pd50Zn50/TiO2 at a conversion of 99%, a temperature of 313 K, and a partial hydrogen pressure of 1 atm. The higher selectivity of the reaction, which occurred according to the Langmuir–Hinshelwood mechanism, on the bimetallic films was explained by a decrease in the alkene/alkyne and alkene/alkane ratios of adsorption constants and by a decrease in the rate constants of 2-methyl-3-buten-2-ol hydrogenation.
Cite:
Okhlopkova L.B.
, Kerzhentsev M.A.
, Ismagilov Z.R.
Coating the Internal Surface of a Capillary Microreactor for the Selective Hydrogenation of 2-Methyl-3-Butyn-2-ol by PdxZn1 – x/TiO2 Catalysts: A Kinetic Study
Kinetics and Catalysis. 2018. V.59. N4. P.450-458. DOI: 10.1134/s0023158418040092 WOS Scopus РИНЦ OpenAlex ANCAN
Coating the Internal Surface of a Capillary Microreactor for the Selective Hydrogenation of 2-Methyl-3-Butyn-2-ol by PdxZn1 – x/TiO2 Catalysts: A Kinetic Study
Kinetics and Catalysis. 2018. V.59. N4. P.450-458. DOI: 10.1134/s0023158418040092 WOS Scopus РИНЦ OpenAlex ANCAN
Original:
Охлопкова Л.Б.
, Керженцев М.А.
, Исмагилов З.Р.
Покрытие внутренней поверхности капиллярного микрореактора для селективного гидрирования 2-метил-3-бутин-2-ола катализаторами PdxZn1– x/TiO2. Кинетическое исследование
Кинетика и катализ. 2018. Т.59. №4. С.441-449. DOI: 10.1134/S0453881118040093 РИНЦ OpenAlex
Покрытие внутренней поверхности капиллярного микрореактора для селективного гидрирования 2-метил-3-бутин-2-ола катализаторами PdxZn1– x/TiO2. Кинетическое исследование
Кинетика и катализ. 2018. Т.59. №4. С.441-449. DOI: 10.1134/S0453881118040093 РИНЦ OpenAlex
Dates:
| Submitted: | Oct 24, 2017 |
| Published print: | Jul 1, 2018 |
| Published online: | Aug 4, 2018 |
Identifiers:
| ≡ Web of science: | WOS:000440802700007 |
| ≡ Scopus: | 2-s2.0-85051102179 |
| ≡ Elibrary: | 35718774 |
| ≡ OpenAlex: | W2885759952 |
| ≡ Chemical Abstracts: | 2018:1445910 |
| ≡ Chemical Abstracts (print): | 170:61873 |