Conversion of isobutane-butenes mixtures on H-USY and SO 4 2− /ZrO2 catalysts under supercritical conditions: Isobutane alkylation and butenes oligomerization

Conversion of isobutane-butenes mixtures on H-USY and SO 4 2− /ZrO2 catalysts under supercritical conditions: Isobutane alkylation and butenes oligomerization Научная публикация

Журнал

Russian Journal of Physical Chemistry B
ISSN: 1990-7923 , E-ISSN: 1990-7931

Вых. Данные

Год: 2014, Том: 8, Номер: 8, Страницы: 991-998 Страниц : 8 DOI: 10.1134/s1990793114080089

Авторы

Koklin A.E. ¹ , Chan V.M.Kh. ¹ , Bogdan V.I. ^2,1

Организации

1	Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
2	Chemical Department, Moscow State University, Moscow, Russia

The conversion of isobutane-butenes mixtures on the H-form of ultrastable zeolite Y and sulfated zirconia under supercritical conditions at 150–160°C and 80 atm was studied. The isobutane/C4-olefins molar ratios (I/O) were 1.5, 14, and 28. In isobutane alkylation (I/O = 14 and 28), sulfated zirconia was more stable: at 150°C and 80 atm, the olefin conversion above 90% was retained for 5 h. Under the same conditions, the deactivation of the zeolite catalyst started after 1–2.5 h (depending on the initial I/O ratio). Selectivity for the formation of C8 hydrocarbons was 30–40%. An increase in the butene content of the initial mixture led to the domination of the dimerization of butenes over the alkylation of isobutane.

Koklin A.E. , Chan V.M.K. , Bogdan V.I.
Conversion of isobutane-butenes mixtures on H-USY and SO 4 2− /ZrO2 catalysts under supercritical conditions: Isobutane alkylation and butenes oligomerization
Russian Journal of Physical Chemistry B. 2014. V.8. N8. P.991-998. DOI: 10.1134/s1990793114080089 WOS Scopus OpenAlex

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