New catalyst system for the production of maleic anhydride by catalytic oxidation of n-butane

摘要

The invention affected a catalyst system for the production of maleic anhydride by catalytic oxidation of n-butane, comprising a reactor tube, with two catalyst systems consisting of different catalyst particles, characterized by: the ratio of the geometric surface of the catalyst particles per volume unit to the cross-section area of the reactor tube in the first catalyst system in gas flow direction is smaller than in the second catalyst system. Furthermore, the invention concerns a process for the production of maleic anhydride by catalytic oxidation of n-butane,where a mixture of oxygen and n-butane is guided by the imaginative catalyst system and has at least one reactor tube at an elevated temperature.