TAILIEUCHUNG - Bentonite pillared by mesoporous silica and its application for gasoline treatment
The acidity of this material was estimated by modern physicochemical methods such as IR, TPD-NH3 and the material was applied in the field of petrochemical catalysis. The acidity of the material has also been demonstrated by Cumen cracking at low temperatures about 350 °C with benzene conversion of % and benzene selectivity of %. | Vietnam Journal of Science and Technology 55 (5B) (2017) 164-170 BENTONITE PILLARED BY MESOPOROUS SILICA AND ITS APPLICATION FOR GASOLINE TREATMENT Vo Thi My Nga1*, Bui Xuan Vuong2, Do Trung Hieu3, Nguyen Thanh Binh3, Tran Tan Nhat4 1 Tuy Hoa Industrial College, 261 Nguyen Tat Thanh Road, Tuy Hoa City 2 Sai Gon University, 273 An Duong Vuong Road, District 5, Ho Chi Minh City 3 Faculty of Chemistry, VNU University of Science, 334 Nguyen Trai, Thanh Xuan, Ha Noi City 4 HCM City University of Food Industry, 140 Le Trong Tan, Tan Phu District, Ho Chi Minh City * Email: Received: 11 August 2017; Accepted for publication: 6 October 2017 ABSTRACT Di Linh bentonite was successfully pillared by mesoporous silica and this result had been published in previous reports. The acidity of this material was estimated by modern physicochemical methods such as IR, TPD-NH3 and the material was applied in the field of petrochemical catalysis. The acidity of the material has also been demonstrated by Cumen cracking at low temperatures about 350 °C with benzene conversion of % and benzene selectivity of %. In addition, the gasoline yield of silica mesoporous material pillared bentonite had got more twice higher than the one when using a mixture of bentonite powder and MCM-41 powder in the cracking Wax. This result confirms that the bond formation between bentonite and mesoporous silica when using one-step method, which increase acidity of the synthesized material. Keywords: bentonite, MCM-41, mesoporous material, cracking catalyst, pillared-clay. 1. INTRODUCTION Fossil fuels are being used very much in the world as well as in Vietnam. Therefore, to save resources, currently, oil refining industry has paid attention to thorough exploiting and effective using heavy oil (residue oil) as a feedstock for producing the high-value products such as gasoline, light olefins, transportation fuels, etc., or as an important raw material to .
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