Methanol to Gasoline Conversion over CuO/ZSM-5 Catalyst Synthesized and Influence of Water on Conversion

Abstract

Conversion of Methanol to Gasoline (MTG) process is accomplished by the synthesis of a ZSM-5 zeolite catalyst to produce high-quality gasoline. The generated catalyst had surface areas of Zeolite and CuO/ZSM-5 (2%) and CuO/ZSM-5 (4%) of 300 m²·g^-1, 284 m²·g^-1 and 254 m²·g^-1. Structure and morphology of synthesized catalysts were studied by such analyses as Brunauer-Emmett-Teller (BET), X-Ray Fluorescence (XRF), Scanning Electron Microscope (SEM), and X-Ray Diffraction (XRD)_. CuO/ZSM-5 (4%) (70% water/30% methanol feed) catalyst resulted in increased activity for the conversion of methanol to hydrocarbons of the gasoline range, especially aromatics. Using (70% water/30% methanol feed) with catalyst CuO/ZSM-5 (4%) led to improved performance of catalysts and increased aromatic and decreased conversion. The main aromatic products were C₇H₈, (CH₃)₂C₆H₄, C₈H₁₀, CH₃C₆H₄C₂H₅, C₁₀H₁₄, C₆H₄(C₂H₅)₂, and C₆H₅(CH₂)₃CH₃. Also, water on ZSM-5 and CuO/ZSM-5 plays an important role in the formation of aromatic products.