Mechanism of 1,2-Dichloroethane Dehydrochlorination on the Acid Sites of Oxide Catalysts as Studied by IR Spectroscopy Full article
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Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2011, Volume: 52, Number: 2, Pages: 305-315 Pages count : 11 DOI: 10.1134/S0023158411020169 | ||||
| Tags | Zeolite; Acid Site; Vinyl Chloride; Lewis Acid Site; Integrate Absorption Coefficient | ||||
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Abstract:
The adsorption of 1,2-dichloroethane on zeolite HZSM-5 and γ-Al2O3 at temperatures from 25 to 400°C was studied by Fourier transform IR spectroscopy. The forms of adsorbed 1,2-dichloroethane and the products of its conversion at the Brønsted and Lewis acid sites of catalysts were identified. The kinetics of 1,2-dichloroethane conversion on the surface of catalysts was studied by in situ Fourier transform IR spectroscopy. It was demonstrated that 1,2-dichloroethane was dehydrochlorinated at the Lewis sites of γ-Al2O3 even at 100°C, whereas the reaction came into play at the Brønsted sites of zeolite HZSM-5 only at 200°C. It was found that, at the Lewis acid sites of catalysts, the resulting vinyl chloride underwent oligomerization with the intermediate formation of a dimer (1,3-dichloro-2-butene), whereas the formation of 1,3-dichloro-2-butene at the Brønsted sites of zeolite HZSM-5 was not observed. The mechanisms of 1,2-dichloroethane conversions at Lewis and Brønsted acid sites were proposed.
Cite:
Shalygin A.S.
, Malysheva L.V.
, Paukshtis E.A.
Mechanism of 1,2-Dichloroethane Dehydrochlorination on the Acid Sites of Oxide Catalysts as Studied by IR Spectroscopy
Kinetics and Catalysis. 2011. V.52. N2. P.305-315. DOI: 10.1134/S0023158411020169 WOS Scopus РИНЦ ANCAN OpenAlex
Mechanism of 1,2-Dichloroethane Dehydrochlorination on the Acid Sites of Oxide Catalysts as Studied by IR Spectroscopy
Kinetics and Catalysis. 2011. V.52. N2. P.305-315. DOI: 10.1134/S0023158411020169 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Шалыгин А.С.
, Малышева Л.В.
, Паукштис Е.А.
Изучение механизма дегидрохлорирования 1,2-дихлорэтана на кислотных центрах оксидных катализаторов методом ИК-спектроскопии
Кинетика и катализ. 2011. Т.52. №2. С.314-324. РИНЦ
Изучение механизма дегидрохлорирования 1,2-дихлорэтана на кислотных центрах оксидных катализаторов методом ИК-спектроскопии
Кинетика и катализ. 2011. Т.52. №2. С.314-324. РИНЦ
Dates:
| Submitted: | May 27, 2009 |
| Published print: | Mar 1, 2011 |
| Published online: | Apr 7, 2011 |
Identifiers:
| Web of science: | WOS:000289254900021 |
| Scopus: | 2-s2.0-79953837935 |
| Elibrary: | 16989047 |
| Chemical Abstracts: | 2011:438081 |
| Chemical Abstracts (print): | 155:181483 |
| OpenAlex: | W2070485438 |