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4月14日,浙江逸盛225万吨/年精对苯二甲酸(PTA)四期扩产装置氧化单元开车一次成功,生产出合格产品。该PTA项目分CTA(粗对苯二甲酸)、PTA主装置区与压缩机区,原料经催化氧化、加氢精制、结晶分离等多道工序后生产出PTA产品。装置自建成后,采用倒开车法,加氢精制与结晶分离部分之前已进行过生产试运行,并获得成功。此次,生产最关键环节氧化单元的开车成功,意味着该装置生产流程已全部打通。
April 14, Zhejiang Yisheng 225 tons / year refined terephthalic acid (PTA) Phase IV expansion unit oxidation unit to drive a successful production of qualified products. The PTA project points CTA (crude terephthalic acid), PTA main plant area and the compressor area, the raw material by catalytic oxidation, hydrofinishing, crystallization separation and other processes to produce PTA products. After the device is built, it adopts the reverse driving method, and the trial run of production has already been carried out before the separation of hydrotreating and crystallization, and is successful. This time, the production of the most critical part of the successful oxidation of the car, means that the device has been completely open up the production process.