1
Chemical Engineering, Babol Noshirvani University of Technology
2
Chemical Engineering, Babol University of Technology
Abstract
In order to enhance the catalytic performance of SAPO-34 catalyst for the reaction of methanol to olefins (MTO), ultrasonic and microwave-assisted aging method were employed in static hydrothermal method to synthesize nano-sized SAPO-34. The effects of the application of this method on the chemical composition, morphology, surface area and total acidity of SAPO-34 were characterized by XRD, FE-SEM, nitrogen adsorption–desorption and NH3-TPD techniques. The catalytic performance of synthesized SAPO-34 was investigated for MTO reaction in a fixed-bed reactor under the same operating conditions (T = 450 °C, P =1 atm, and WHSV = 4 h−1). Comparing with the SAPO-34 synthesized with conventional hydrothermal method, sample synthesized with simultaneous use of US and MW-assisted aging methods possesses larger surface area and small crystal size and exhibits higher selectivity to light olefins (C˭2-C˭4) and longer lifetime.
Taghizadeh, M., & Sharifi Pajaie, H. (2015). Ultrasonic and Microwave Pretreatment for Hydrothermal Synthesis of Nanosized SAPO-34 and Their Catalytic Performance in MTO Reaction (RESEARCH NOTE). International Journal of Engineering, 28(3), 330-337.
MLA
Majid Taghizadeh; Hassan Sharifi Pajaie. "Ultrasonic and Microwave Pretreatment for Hydrothermal Synthesis of Nanosized SAPO-34 and Their Catalytic Performance in MTO Reaction (RESEARCH NOTE)". International Journal of Engineering, 28, 3, 2015, 330-337.
HARVARD
Taghizadeh, M., Sharifi Pajaie, H. (2015). 'Ultrasonic and Microwave Pretreatment for Hydrothermal Synthesis of Nanosized SAPO-34 and Their Catalytic Performance in MTO Reaction (RESEARCH NOTE)', International Journal of Engineering, 28(3), pp. 330-337.
VANCOUVER
Taghizadeh, M., Sharifi Pajaie, H. Ultrasonic and Microwave Pretreatment for Hydrothermal Synthesis of Nanosized SAPO-34 and Their Catalytic Performance in MTO Reaction (RESEARCH NOTE). International Journal of Engineering, 2015; 28(3): 330-337.
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