Chemical composition optimization and characterization of the NiO/B 2O3-Al2O3 system as a catalyst for ethylene oligomerization Full article
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Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2010, Volume: 51, Number: 3, Pages: 404-409 Pages count : 6 DOI: 10.1134/S0023158410030134 | ||
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Abstract:
The samples of the NiO/B2O3-Al2O 3 system with NiO contents from 0.48 to 38.30 wt % were synthesized by the impregnation of borate-containing alumina (20 wt % B2O3). It was found that nickel oxide occurred in an X-ray amorphous state in the samples containing to 23.20 wt % NiO. At a NiO content of 4.86 wt % or higher, the support was blocked by the modifier to cause a decrease in the specific surface area from 234 to 176 m2/g and in the amount of acid sites from 409-424 to 333 μmol/g. An extremal character of the dependence of catalyst activity in ethylene oligomerization on NiO content was found with a maximum in the range of 4.86-9.31 wt %. Based on spectroscopic data, it was found that ethylene activation on the NiO/B2O3-Al2O3 catalyst can be associated with the presence of Ni2+ cations, which chemically interact with the support. The catalyst containing 4.86 wt % NiO at 200°C, a pressure of 4 MPa, and an ethylene sup- ply rate of 1.1 h-1 provided almost complete ethylene conversion at the yield of liquid oligomerization prod- ucts to 90.0 wt %; the total concentration of C8+ alkenes in these products was 89.0 wt %.
Cite:
Lavrenov A.V.
, Buluchevskii E.A.
, Moiseenko M.A.
, Drozdov V.A.
, Arbuzov A.B.
, Gulyaeva T.I.
, Likholobov V.A.
, Duplyakin V.K.
Chemical composition optimization and characterization of the NiO/B 2O3-Al2O3 system as a catalyst for ethylene oligomerization
Kinetics and Catalysis. 2010. V.51. N3. P.404-409. DOI: 10.1134/S0023158410030134 WOS Scopus РИНЦ OpenAlex
Chemical composition optimization and characterization of the NiO/B 2O3-Al2O3 system as a catalyst for ethylene oligomerization
Kinetics and Catalysis. 2010. V.51. N3. P.404-409. DOI: 10.1134/S0023158410030134 WOS Scopus РИНЦ OpenAlex
Original:
Лавренов А.В.
, Булучевский Е.А.
, Моисеенко М.А.
, Дроздов В.А.
, Арбузов А.Б.
, Гуляева Т.И.
, Лихолобов В.А.
, Дуплякин В.К.
Оптимизация химического состава и изучение свойств системы NiO/B2O3-Al2O3 как катализатора олигомеризации этилена
Кинетика и катализ. 2010. Т.51. №3. С.423-428. РИНЦ
Оптимизация химического состава и изучение свойств системы NiO/B2O3-Al2O3 как катализатора олигомеризации этилена
Кинетика и катализ. 2010. Т.51. №3. С.423-428. РИНЦ
Dates:
| Submitted: | Feb 18, 2009 |
| Published print: | Jun 1, 2010 |
| Published online: | Jun 24, 2010 |
Identifiers:
| Web of science: | WOS:000281104600013 |
| Scopus: | 2-s2.0-77955725334 |
| Elibrary: | 15336821 |
| OpenAlex: | W2153840169 |