Oligomerization of butenes on borate-containing alumina Научная публикация
Журнал |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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Вых. Данные | Год: 2009, Том: 50, Номер: 2, Страницы: 235-240 Страниц : 6 DOI: 10.1134/S002315840902013X | ||
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Реферат:
The effects of the chemical composition of borate-containing alumina on its physicochemical properties, catalytic activity, and selectivity in the oligomerization of butenes are reported. The preparation of catalysts containing 2.6-12.4 wt % B2O3 by modifying γ-alumina with orthoboric acid leads to a 9-60 m2/g decrease in the specific surface area and to a 0.02-0.14 cm3/g decrease in the pore volume relative to the same parameters of the initial support. At boron oxide contents of ∼ 8.8 wt %, these changes are due to the buildup of B2O3 on the catalyst surface. This is accompanied by a decrease in the number of surface B-OH groups, which are active sites of oligomerization. This finding correlates well with the results of catalytic measurements. The catalyst containing 4.5 wt % B2O3 is the most active. It was found by experimental design methods that the most favorable combination of catalytic activity (total butene conversion of 77.8-86.8%) and selectivity (butene oligomer concentration of at least 90 wt % in the liquid product) is attained at T = 150°C, P = 8.0 MPa, and a butene WHSV of 0.5-1.0 h-1. Under these conditions, the butene conversion decreases by no more than 13% from the initial level in 14 h. The activity of the catalyst can be restored by oxidative regeneration. © 2009 Pleiades Publishing, Ltd.
Библиографическая ссылка:
Lavrenov A.V.
, Duplyakin V.K.
Oligomerization of butenes on borate-containing alumina
Kinetics and Catalysis. 2009. V.50. N2. P.235-240. DOI: 10.1134/S002315840902013X WOS Scopus РИНЦ
Oligomerization of butenes on borate-containing alumina
Kinetics and Catalysis. 2009. V.50. N2. P.235-240. DOI: 10.1134/S002315840902013X WOS Scopus РИНЦ
Оригинальная версия:
Лавренов А.В.
, Дуплякин В.К.
Олигомеризация бутенов на боратсодержащем оксиде алюминия
Кинетика и катализ. 2009. №2. С.249-255. РИНЦ
Олигомеризация бутенов на боратсодержащем оксиде алюминия
Кинетика и катализ. 2009. №2. С.249-255. РИНЦ
Даты:
Опубликована в печати: | 1 мар. 2009 г. |
Опубликована online: | 24 апр. 2009 г. |
Идентификаторы БД:
Web of science | WOS:000265499100013 |
Scopus | 2-s2.0-65149089657 |
РИНЦ | 13610053 |
OpenAlex | W2067853159 |