Summary of design and operation of 260 kt/a waste acid regeneration plant
Design process flow and technical characteristics of 260 kt/a waste acid regeneration plant of Zhejiang Petrochemical Co.,Ltd.are introduced.The device adopts the basic design process package of Mengmo Ke Company.Adopting the"3+1"double conversion double absorption.All three towers in the dry suction process use ZeCor® Material:Alloy Tower and Uniflo® Pipe groove alloy acid separator.The tail suction process adopts hydrogen peroxide washing technology.The design conversion rate is 99.85%and the mass concentration of sulphuric acid mist in exhaust emissions is not higher than 5 mg/m3.During the driving process,there were problems such as damage to the expansion joint at the inlet of the dilute acid circulation pump in the purification process and blockage of the fiber demister in the first absorption tower.These issues are resolved through technical modifications.
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