Title : ZSM-5 modified catalysts for the conversion of bioethanol to aromatics
The production of aromatics and other petrochemicals from renewable sources will be a sustainable approach and reduce the loads on fossil resources. Eventually, it will help reduce the emission of greenhouse gases produced with these materials' combustion. In this work, catalytic conversion of bioethanol to aromatics (BTX) has been studied using modified ZSM-5 catalysts. The modified ZSM-5 catalysts were prepared by the impregnation of transition metals with the variable metal concentration. The detailed characterizations of the prepared catalysts were performed by using Nitrogen physisorption, X-ray Diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Temperature programmed desorption (NH3-TPD), Thermal gravimetric analysis (TGA), Scanning electron microscopy (SEM), and Transmission electron microscopy (TEM) techniques. The role of acidity and structure of modified ZSM-5 for the conversion of bioethanol to aromatics has been investigated. The reaction conditions were optimized for the production of aromatics from bioethanol at different reaction parameters, temperature (200-600 °C), LHSV (2-8 h-1). At optimum reaction conditions, the catalyst shows 35% BTX selectivity.