Zhanghua Machinery won the bid for the core equipment required in the capacity expansion renovation of the xylene production unit in Zhejiang’s chemical refining and integration project: a super-large diameter forged-welded reactor for the 5# 10-million-ton/year selective disproportionation unit
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Zhanghua Machinery won the bid for the supply of the super-large diameter forged-welded reactor, which is a key piece of equipment for the capacity expansion upgrade of the p-xylene unit in Zhejiang Petrochemical’s integrated refining and chemical processing project. This reactor has an annual production capacity of 10 million tons and belongs to the type 5# selective disproportionation reactor. Recently, Zhanghua Machinery successfully secured this contract. This device is the world’s largest selective disproportionation unit in terms of processing capacity, marking a significant breakthrough for China in the manufacturing of advanced core equipment for petrochemical processing. The 5# selective disproportionation unit that was awarded in this bid has an annual processing capacity of 10 million tons per unit, setting a new record for the scale of such units worldwide. The selective disproportionation reaction is a key process in the production of xylene. As the \"heart of this process\", the reactor must operate stably over long periods in high-temperature, high-pressure, and highly corrosive environments, which imposes extreme demands on the material properties, structural strength, and manufacturing precision of such equipment. The ultra-large-diameter forged-welded reactor won by Zhanghua Machinery is the very core of this world’s largest facility. Featuring an integrated forged-welded structure, its diameter far exceeds that of conventional refining and chemical processing equipment. Zhanghua Machinery will design a \"heartpiece\" specifically for this world’s largest facility, helping the client’s integrated refining and chemical processing project achieve an increase in production capacity as well as an optimization of the product portfolio.
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