The beneficial use of ultrasound in synthesis of nanostructured Ce-doped SAPO-34 used in methanol conversion to light olefins

被引：69
作者：
Charghand, Mojtaba
Haghighi, Mohammad [1 ]
Aghamohammadi, Sogand
机构：
[1] Sahand Univ Technol, Reactor & Catalysis Res Ctr, Tabriz, Iran
来源：
ULTRASONICS SONOCHEMISTRY | 2014年 / 21卷 / 05期
关键词：
Methanol; Olefins; MTO; SAPO-34; Hydrothermal; Ultrasound; HYDROTHERMAL SYNTHESIS; CATALYTIC PERFORMANCE; PHYSICOCHEMICAL PROPERTIES; INCORPORATED SAPO-34; MOLECULAR-SIEVES; MIXED TEMPLATE; MTO REACTION; OIL PRICE; DEACTIVATION; TRANSFORMATION;
D O I：
10.1016/j.ultsonch.2014.03.011
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Methanol to olefins process is an interesting route for synthesis of light olefins over nanostructured catalysts. The present research deals with catalyst development by sonochemical method for methanol to olefins reaction with the aim of reaching the most efficient catalyst. The CeSAPO-34 catalyst was prepared via ultrasound assisted hydrothermal method and characterized by XRD, FESEM, PSD, EDX, BET and FTIR techniques. The characteristics and performance of this sample were compared to the catalyst prepared by conventional hydrothermal method. XRD patterns reflected the higher crystallinity of the catalyst synthesized by ultrasound application. In comparison, particles with smaller sizes obtained by applying ultrasonic irradiation. The catalyst obtained using ultrasound had the longer lifetime and sustained desired light olefins at higher values. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：1827 / 1838
页数：12
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