O. Omarov8 , E.A. Vlasov3 ACID-BASE PROPERTIES OF SULFATED HETEROGENEOUS CATALYSTS FOR ISOBUTANE CONVERSION Abo Akademi University FI-20500, Turku/Abo, Finland St-Petersburg State Institute of Technology (Technical University) Moskovsky Pr. 26, St-Petersburg, 190013, Russia e -mail: ap1804@yandex.ru Currently, a promising direction of development of the alkylation of isobutane is the use of heterogeneous catalysis. <...> A series of catalysts for isobutene conversion are synthesized by the sulfation and chlorination of γ-Al2 O3 , ZrO2 , , Д. <...> Омаров КИСЛОТНО-ОСНОВНЫЕ СВОЙСТВА ZrS и AlSZr – КАТАЛИЗАТОРОВ АЛКИЛИРОВАНИЯ ИЗОБУТАНА Университет АБО, FI-20500, Турку, Финляндия Санкт-Петербургский государственный технологический институт (технический университет) Московский пр., д.26, Санкт-Петербург, 190013, Россия e -mail: ap1804@yandex.ru and their mixtures) under different conditions and characterized by different methods, including pycnometry, IR spectroscopy, programmed ammonia thermodesorption and the adsorption of acid-base indicators affording the distribution of functional groups on their surface according to their acid-base properties. <...> It is shown, that the sulfation generates Br ensted acidic centers the average force on the surface of γ-Al2 O3 nificantly activates the acid sites of different strength of ZrO2 and the use of sulfated alumina or Zirconia in the synthesis of Al-S-Zr-catalyst provides a 91-98 % degree of conversion of isobutane at 44-50 % selectivity. <...> Keywords: alumina, zirconia, porosity, surface acid-base properties, i-butane alkylation 1 1 Ключевые слова: оксиды алюминия и циркония, пористость, кислотно-основные свойства поверхности, алкилирование изобутана Murzin Dmitry Yu., Dr Sci (Chem.), Professor, Head, Laboratory of Industrial Chemistry, Faculty of Chemical Engineering, Abo Akademi, Head , Laboratory of Catalytic Technology SPbGTI(TU), e –mail: dmurzin@abo.ti 2 Myakin Sergey V., PhD (Eng.), Associate Professor, Department of theoretical foundations of Materials Science SPbGTI(TU), e-mail: sergey_mjakin@mail.ru 1 Мякин Сергей Владимирович, канд. техн. наук, доцент каф. теоретических основ материаловедения СПбГТИ(ТУ), ), e-mail: sergey_mjakin@mail.ru 3 1 4 Sychev Maxim M., Dr Sci (Chem.), Head, Department of theoretical foundations of Materials Science SPbGTI(TU), e-mail: msychov@yahoo.com 1 Сычев <...>