PRODUCTION OF AROMATIC CARBOXYLIC ACID

摘要

PURPOSE:To improve the energy efficiency and reduce the energy cost by effectively utilizing the waste heat generated in the production of an aromatic carboxylic acid by the oxidation of an alkylaromatic hydrocarbon. CONSTITUTION:Exhaust gas from an oxidation reactor 1 is passed through high-pressure steam generators 2, 3 and supplied to a gas turbine 5. The high- pressure steam generated by the high-pressure steam generators 2, 3 is supplied to a steam turbine 4. A compressor 9 for feeding compressed air to the reactor is driven by the power generated by the gas turbine 5 and the steam turbine 4. The steam turbine and the gas turbine are driven by the waste heat generated in the production of an aromatic carboxylic acid and the power can be effectively utilized as a power source for an air compressor.