caa a22 4500 606194614 CHVBK 20210128100915.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s10934-014-9885-5 doi (NATIONALLICENCE)springer-10.1007/s10934-014-9885-5 High temperature synthesis of nanostructured Ce-SAPO-34 catalyst used in conversion of methanol to light olefins: effect of temperature on physicochemical properties and catalytic performance [Elektronische Daten] [Erfan Aghaei, Mohammad Haghighi] The nanostructured SAPO-34 catalyst was synthesized at different temperatures via high temperature hydrothermal method. The synthesized catalysts at different temperatures were modified by impregnating of 0.5 wt% CeO2. The structures of the synthesized catalysts were characterized by various methods including XRD, FESEM, EDX, BET and FTIR techniques. The synthesized sample at low temperature and without modification has high crystallinity and maximum surface area. By Ce impregnation, crystallinity and surface area reduced, strongly. According to the XRD and FTIR analysis, Ce interacts with structure and hydroxyl groups of SAPO-34. Effect of Ce modification and crystallization temperature on catalytic performance of the SAPO-34 and Ce-SAPO-34 catalysts was investigated in the methanol to olefins process. The modified catalysts by Ce impregnation have lower methane formation compared to the synthesized sample without modification. The catalyst synthesized at 250°C and modified with 0.5% CeO2 showed longer lifetime in methanol to olefins process. The small particle size and Ce addition for this catalyst might be responsible for its improved catalytic performance. Springer Science+Business Media New York, 2014 Ce - SAPO-34 nationallicence Crystallization temperature nationallicence High temperature nationallicence Methanol nationallicence Olefins nationallicence MTO nationallicence Aghaei Erfan Chemical Engineering Faculty, Sahand University of Technology, P. O. Box 51335-1996, Sahand New Town, Tabriz, Iran aut Haghighi Mohammad Chemical Engineering Faculty, Sahand University of Technology, P. O. Box 51335-1996, Sahand New Town, Tabriz, Iran aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/1(2015-02-01), 187-200 1380-2224 22:1<187 2015 22 10934 https://doi.org/10.1007/s10934-014-9885-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10934-014-9885-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Aghaei Erfan Chemical Engineering Faculty, Sahand University of Technology, P. O. Box 51335-1996, Sahand New Town, Tabriz, Iran aut NATIONALLICENCE 700 1- Haghighi Mohammad Chemical Engineering Faculty, Sahand University of Technology, P. O. Box 51335-1996, Sahand New Town, Tabriz, Iran aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/1(2015-02-01), 187-200 1380-2224 22:1<187 2015 22 10934