Causes of deactivation of chromium-containing Y type zeolites in hydration of olefins Научная публикация
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Petroleum chemistry U.S.S.R
ISSN: 1879-3010 , E-ISSN: 0031-6458 |
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| Вых. Данные | Год: 1985, Том: 25, Номер: 3, Страницы: 174-178 Страниц : 5 DOI: 10.1016/s0031-6458(85)80007-1 | ||
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Реферат:
1. A consequence of hydration of C2-C4 olefins to corresponding alcohols on Cr and Ce-containing Y type zeolites is a combination of reversible and irreversible deactivation of the catalyst due to considerable coke formation. 2. Irreversible deactivation of the Y type zeolites is caused by oxidation of Cr(III)→Cr(VI) and Ce(III)→Ce(IV) during oxidative recovery of the catalyst, followed by leaching of chromium in the form of soluble Ca, La and Al chromates. 3. Chromium introduced into high-silica zeolite is demonstrated not to occupy ion-exchange places in the high-silica zeolite lattice and when heated in air, it does not change the valence state but forms a Cr2O3 phase. This explains the stability of high-silica zeolites containing chromium.
Библиографическая ссылка:
Tolkacheva L.N.
, Novikova L.A.
, Mikheikin I.D.
, Kustov L.M.
, Minachev K.M.
Causes of deactivation of chromium-containing Y type zeolites in hydration of olefins
Petroleum chemistry U.S.S.R. 1985. V.25. N3. P.174-178. DOI: 10.1016/s0031-6458(85)80007-1 OpenAlex
Causes of deactivation of chromium-containing Y type zeolites in hydration of olefins
Petroleum chemistry U.S.S.R. 1985. V.25. N3. P.174-178. DOI: 10.1016/s0031-6458(85)80007-1 OpenAlex
Идентификаторы БД:
| OpenAlex: | W2064380508 |
Цитирование в БД:
| БД | Цитирований |
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| OpenAlex | Нет цитирований |