“…Commonly, when the reaction is carried out at 150 -300 °C, diethyl ether is the main product. At higher temperature, ethylene selectivity increases, but it decays at temperature higher than 400 -500°C due to formation of higher hydrocarbons and aromatics [2,[16][17][18][19]. Many byproducts are reported, such as acetic acid, ethyl acetate, A c c e p t e d M a n u s c r i p t 7 acetaldehyde, acetone, methanol, methane, propane, propylene, butane, butenes, hydrocarbons, carbon dioxide, carbon monoxide and hydrogen, besides possible coke formation by surface polymerisation of ethylene.…”