Production of gasoline range hydrocarbons from methanol on hierarchical ZSM-5 and Zn/ZSM-5 catalyst prepared with soft second template

Production of gasoline range hydrocarbons from methanol on hierarchical ZSM-5 and Zn/ZSM-5 catalyst prepared with soft second template

Type	Journal Article
Author	Xiaodong Wang
Author	Xiaoxia Gao
URL	http://www.sciencedirect.com/science/article/pii/S2095495615000145
Volume	24
Issue	4
Pages	490-496
Publication	Journal of Energy Chemistry
Date	July 2015
Abstract	Reports preparation of nano hierarchical mesoporous ZSM-5 catalysts with cationic dimethyldiallyl ammonium chloride acrylamide copolymer (PDDA) as a soft second template. Using ZSM-5 catalyst as a matrix, Zn/ZSM-5, researchers obtained catalysts by the wet impregnation method. They studied the effect of the PDDA amount and Zn loadings on the properties of the catalysts, including crystallinity, morphology, textural properties, acid nature and catalytic activity in MTG reaction, using XRD, FESEM, TEM, Nitrogen adsorption–desorption isotherms and NH3-TPD method, respectively. The MTG reaction was performed in a fixed bed reactor. Results revealed that the nano hierarchical ZSM-5 catalyst prepared with a PDDA/Si molar ratio of 0.070 possesses longer stable phase of 70 h with a liquid hydrocarbon selectivity of 29.8%. Zn/ZSM-5 catalyst with a Zn/ZSM-5 ratio of 0.07 wt.% shows the highest liquid hydrocarbon selectivity, reaching 62.5%.