Reactor for preparing maleic anhydride by oxidizing n-butane

• Main Author: WANG GENGXIN
• Format: Patent
• Language: Chinese; English
• Published: 13.12.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a reactor for preparing maleic anhydride through oxidation of n-butane, which comprises a catalytic reaction zone located in the reactor, the catalytic reaction zone is divided into a plurality of reaction compartments, each reaction compartment is filled with a vanadium phosphorus oxide catalyst, and the vanadium phosphorus oxide catalyst is loaded in the catalytic reaction zone. Raw materials of n-butane, air and circulating tail gas are conveyed to the catalytic reaction zone through a pipeline for reaction; a sleeve is arranged in the reactor, and the inner space of the reactor is divided into a plurality of reaction compartments by the sleeve. A catalytic reaction area in the reactor is divided into a plurality of reaction compartments through a plurality of sleeves, and a raw material mixer is conveyed to the catalytic reaction area through a pipeline for reaction, so that mixed reaction gas reversely and axially enters the catalytic reaction area, and is dispersed and enters the