Charghand Mojtaba, Haghighi Mohammad, Aghamohammadi Sogand
Chemical Engineering Faculty, Sahand University of Technology, P.O. Box 51335-1996, Sahand New Town, Tabriz, Iran; Reactor and Catalysis Research Center (RCRC), Sahand University of Technology, P.O. Box 51335-1996, Sahand New Town, Tabriz, Iran.
Chemical Engineering Faculty, Sahand University of Technology, P.O. Box 51335-1996, Sahand New Town, Tabriz, Iran; Reactor and Catalysis Research Center (RCRC), Sahand University of Technology, P.O. Box 51335-1996, Sahand New Town, Tabriz, Iran.
Ultrason Sonochem. 2014 Sep;21(5):1827-38. doi: 10.1016/j.ultsonch.2014.03.011. Epub 2014 Mar 24.
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.
甲醇制烯烃工艺是一种在纳米结构催化剂上合成轻质烯烃的有趣途径。本研究通过声化学方法开发用于甲醇制烯烃反应的催化剂，旨在获得最高效的催化剂。采用超声辅助水热法制备了CeSAPO-34催化剂，并通过XRD、FESEM、PSD、EDX、BET和FTIR技术对其进行了表征。将该样品的特性和性能与通过传统水热法制备的催化剂进行了比较。XRD图谱表明，超声合成的催化剂具有更高的结晶度。相比之下，超声辐照得到的颗粒尺寸更小。使用超声获得的催化剂具有更长的寿命，并能在更高的值下维持所需的轻质烯烃。
