Journal
CLEAN, EFFICIENT AND AFFORDABLE ENERGY FOR A SUSTAINABLE FUTURE
Volume 75, Issue -, Pages 554-559Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.egypro.2015.07.452
Keywords
dimethyl ether; gasoline; zeolite; ammonium
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NH4-ZSM-5 is employed for converting dimethyl ether to gasoline (DTG) with the fixed-bed reactor. The lifetime of the catalyst can be extended from 10 hours to 197 hours and the aromatic content can be decreased from 56.6 vol.% to 30.2 vol.% as H-ZSM-5 replaced by NH4-ZSM-5 for DTG reaction at the experimental conditions of P = 1 atm, T = 300 degrees C, and WHSV (Weight Hourly Space Velocity) = 6.5 h(-1). The durability of NH4-ZSM-5 is performed by the reaction (1 atm/300 degrees C/WHSV 6.5 h(-1)) - regeneration (air 0.5 lpm/570 degrees C/10 hrs) cycle test. The product distribution of the DTG with the NH4-ZSM-5 undergone 6 times regeneration is similar to the fresh one. Moreover, the products were analyzed by the in-line GC-MS. The product distribution is similar ether the sample from starting or the sample from the 240 hours on stream running at the reaction conditions of P = 1 atm, T = 400 degrees C, and WHSV = 3.6 h(-1). (C) 2015 The Authors. Published by Elsevier Ltd.
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