ABSTRACT Maleic anhydride is an organic compound that has the molecular formula C4H2O3 with the IUPAC name 2,5-Furandione. The synthesis of maleic anhydride using Lummus technology is characterized by the use of n-butane and air as the main raw materials and the help of a Vanadium Phosphorus Oxide (VPO) catalyst, which is reacted in a fluidized bed reactor. Maleic anhydride is a basic chem…