Abstract:

 In large-scale PTA plants, the oxidation unit is usually designed as two parallel production lines due to the manufacturing limitation of equipment. Based on the PTA plant with the largest single production capacity of 3 million tons/year in the world, this paper introduces the design scheme of two oxidation reaction units and one crystallization unit, focusing on the equipment layout, the coupling design of equipment and structure, the nozzle layout of the slurry equipment and the design of key pipelines.

Key words: PTA plant, equipment layout;piping design