Effect of Modifying Alumina Desiccants with Sulfuric Acid on Their Physicochemical Properties Научная публикация
| Журнал |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Вых. Данные | Год: 2014, Том: 55, Номер: 3, Страницы: 372-379 Страниц : 8 DOI: 10.1134/S0023158414030021 | ||
| Ключевые слова | Acid Site; Average Pore Diameter; Lewis Acid Site; Static Capacity; Bayerite | ||
| Авторы |
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| Организации |
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Реферат:
In the production of alumina desiccants by extrusion, the introduction of sulfuric acid at the stage of preparing a mouldable paste based on hydroxides containing bayerite or pseudoboehmite increases the sorption capacity of the product. This effect is most pronounced for the pseudoboehmite-based materials. The dynamic capacity of these desiccants increases to the level characteristic of the bayerite-containing hydroxide (>5 g H2O/100 cm3) for a dew point of −40°C and a contact time of 1.5 s), and their static capacity exceeds this value (increasing from 21.13 to 23.1 g H2O/100 cm3). This procedure changes the phase composition and textural characteristics of the pseudoboehmite-based desiccants and increases Brønsted acidity and generates strong Lewis acid sites on the surface of all oxides. The dynamic capacity of desiccants with similar textural characteristics depends on the acid-base properties of their surface.
Библиографическая ссылка:
Danilevich V.V.
, Isupova L.A.
, Paukshtis E.A.
, Ushakov V.A.
Effect of Modifying Alumina Desiccants with Sulfuric Acid on Their Physicochemical Properties
Kinetics and Catalysis. 2014. V.55. N3. P.372-379. DOI: 10.1134/S0023158414030021 WOS Scopus РИНЦ CAPlusCA OpenAlex
Effect of Modifying Alumina Desiccants with Sulfuric Acid on Their Physicochemical Properties
Kinetics and Catalysis. 2014. V.55. N3. P.372-379. DOI: 10.1134/S0023158414030021 WOS Scopus РИНЦ CAPlusCA OpenAlex
Оригинальная:
Данилевич В.В.
, Исупова Л.А.
, Паукштис Е.А.
, Ушаков В.А.
Влияние модифицирования алюмооксидных осушителей серной кислотой на их физико-химические свойства
Кинетика и катализ. 2014. Т.55. №3. С.391-398. DOI: 10.7868/S0453881114030022 РИНЦ OpenAlex
Влияние модифицирования алюмооксидных осушителей серной кислотой на их физико-химические свойства
Кинетика и катализ. 2014. Т.55. №3. С.391-398. DOI: 10.7868/S0453881114030022 РИНЦ OpenAlex
Даты:
| Поступила в редакцию: | 16 июл. 2013 г. |
| Опубликована в печати: | 1 мая 2014 г. |
| Опубликована online: | 17 июн. 2014 г. |
Идентификаторы БД:
| Web of science: | WOS:000337639300012 |
| Scopus: | 2-s2.0-84903776493 |
| РИНЦ: | 24064297 |
| Chemical Abstracts: | 2014:980971 |
| Chemical Abstracts (print): | 161:396494 |
| OpenAlex: | W1998904287 |