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The 600,000-ton ethylene glycol temperature-controlled conversion unit at Xinjiang Tianye, operated by Huashuo Technology, is functioning well

2020-12-16View Original

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The temperature-controlled shift unit for the 600,000-ton per year ethylene glycol production facility at Xinjiang Tianye is operating well, according to Huashuo Technology. The shift section of Xinjiang Tianye Huihe New Materials Co., Ltd.’s 600,000-ton per year ethylene glycol production project utilizes Huashuo Technology Co., Ltd.’s temperature-controlled shift technology. The shift unit process, the temperature-controlled shift reactor and the auto-thermal purification reactor, as well as the shift catalysts used within the reactors, were all designed, manufactured, and supplied by Huashuo Technology. The autothermal purification furnace and the temperature-controlled shift furnace are equipped with a total of 133 m3 of EB-6 series high-pressure sulfur-resistant shift catalysts. The conversion unit was successfully started up in one attempt on August 1, 2020. By August 31, the unit had been in operation for a full month, with stable performance throughout that period and all indicators meeting the design requirements. According to Huashuo, during the initial operation phase, one gasification furnace was in use in the gasification section; the gas volume was approximately 80,000 cubic meters on a dry basis, with a gas-to-vapor ratio of around 0.7. The CO concentration at the inlet of the temperature-controlled shift reactor was about 32%, and the temperature was around 256 degrees℃ ; The CO concentration at the outlet is about 2.8%, and the temperature is around 267°C. As the operation of the subsequent sections gradually stabilized, the gasification section operated two gasifiers, with a gas volume of around 160,000 cubic meters on a dry basis; the steam-to-gas ratio was approximately 0.7. The CO concentration at the inlet of the temperature-controlled shift reactor was about 34%, and the temperature was around 259 degrees℃ ; The CO concentration at the outlet is about 2.8%, and the temperature is about 269°C. The successful operation of this project demonstrates that the temperature control conversion process technology, equipment, and specialized catalysts developed independently by Huashuo Company possess outstanding advantages such as a simple process flow, ease of operation, a long service life for the catalysts, low investment costs, and high reliability. They are at the leading level in China and will play a very important role in supporting the further development and application of related technologies. Phase I of Xinjiang Tianye utilizes Tsinghua furnace coal slurry gasification, shift reaction, methanol washing, hydrogen/carbon monoxide separation, and high-chemical-grade ethylene glycol technology to produce 600,000 tons of ethylene glycol per year, while also generating methanol as a by-product at low pressure. The entire process was completed on August 24, 2020.

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