Synthesis of Hierarchically Porous ZSM-5 by Solvent-Evaporation Route
A hierarchically porous zeolite ZSM-5 is prepared under hydrothermal conditions by using hexadecyltrimethoxysilane as inhibitor and template. The physical and acid properties of the hierarchically porous ZSM-5 are characterized by XRD, SEM, N2 physisorption and NH3-TPD techniques. Benzene alkylation with methanol is carried out with both conventional and hierarchically porous ZSM-5 in a fixed bed reactor. The creation of mesoporosity in zeolite ZSM-5 promotes benzene conversion and xylene selectivity with respect to conventional counterpart.
H. Z. Zhang et al., "Synthesis of Hierarchically Porous ZSM-5 by Solvent-Evaporation Route", Advanced Materials Research, Vols. 311-313, pp. 540-544, 2011