Sciact
  • EN
  • RU

The Effect of Transition Alumina (γ‐, η‐, χ‐Al2O3) on the Activity and Stability of Chromia/Alumina Catalysts. Part II: Industrial‐Like Catalysts and Real Plant Aging Conditions Научная публикация

Журнал Energy Technology
ISSN: 2194-4288 , E-ISSN: 2194-4296
Вых. Данные Год: 2018, Том: 7, Номер: 4, DOI: 10.1002/ente.201800736
Авторы Nazimov Daniil A. 1 , Klimov Oleg V. 1 , Shaverina Anastasiya V. 1 , Cherepanova Svetlana V. 2 , Larina Tatyana V. 2 , Khabibulin Dzhalil F. 2 , Noskov Aleksandr S. 1
Организации
1 Department of Catalytic Process Engineering, Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave., 5, Novosibirsk, 630090 Russian Federation
2 Department of Physicochemical Methods for Catalysts Investigation, Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave., 5, Novosibirsk, 630090 Russian Federation
Реферат: The effect of alumina structure (γ-, η-, χ-Al2O3) on the long-term stability of industrial-like Cr2O3/Al2O3 dehydrogenation catalysts under industrial dehydrogenation conditions is studied. It is shown that the type of alumina support determines physicochemical and catalytic stability of the catalyst: η-Al2O3 is the most stable against irreversible deactivation, whereas χ-Al2O3 is the least stable. One of the possible reasons of predominant stability of η-Al2O3-based catalyst is its relatively high sintering stability under real plant conditions. High-temperature (>800 °C) calcination, sometimes used to compare stabilities of chromia/alumina catalysts, appears to be unable to simulate industrial aging because of the inconsistency of the phase composition of industrially and artificially aged catalysts.
Библиографическая ссылка: Nazimov D.A. , Klimov O.V. , Shaverina A.V. , Cherepanova S.V. , Larina T.V. , Khabibulin D.F. , Noskov A.S.
The Effect of Transition Alumina (γ‐, η‐, χ‐Al2O3) on the Activity and Stability of Chromia/Alumina Catalysts. Part II: Industrial‐Like Catalysts and Real Plant Aging Conditions
Energy Technology. 2018. V.7. N4. DOI: 10.1002/ente.201800736 WOS
Идентификаторы БД:
Web of science: WOS:000466486200025
Альметрики: