The performance of the entire set of equipment has been comprehensively tested. The desalted water device mainly consists of multi-media filter, ultrafiltration, primary reverse osmosis, secondary reverse osmosis, concentrated water reverse osmosis, mixed bed, pre-sun bed, refining It is composed of mixed bed and other units, with a processing capacity of 4×120 tons/hour and an annual water production of 3.84 million tons.
Since the debugging was completed at the end of August 2019 to produce qualified desalted water, conventional equipment units such as multi-media filters, mixed beds, pre-sun beds, and refined mixed beds in the device have all received water in accordance with the designed water volume and The produced water quality index is running. During the operation, the water production volume and produced water quality of the equipment meet the performance index requirements. Since the performance assessment began on September 22 this year, the device has been running non-stop for 72 hours, and all indicators meet the assessment indicator value requirements in the agreement.
This performance assessment is divided into four stages. During the entire performance assessment process, the Xinjiang Tianye Project Department of Donghua Technology strictly followed the process requirements and procedures, and worked closely with all majors to effectively ensure the assessment results. In the next step, the Xinjiang Tianye Project Department of Donghua Technology will actively carry out 72-hour performance assessment of other devices within the EPC scope based on the actual operation conditions on site.
The gasifier of the Xinjiang Tianye Phase I 600,000 tons/year ethylene glycol project was successfully ignited on July 28, and the water and coal The pulp feeding was successful at the first time. The methanol process started smoothly on August 1. The dimethyl oxalate intermediate product was produced on August 20. The entire project process was opened on August 24, and the polyester grade ethylene glycol product was successfully produced. After testing, The product purity is 99.96%, with good UV transmittance, which complies with the national high-quality ethylene glycol standard and meets the highest requirements for ethylene glycol indicators in the polyester industry, marking that the entire process of the project has been completed and has entered the production and operation stage. The entire start-up process was safe and efficient, setting a model for the start-up of large-scale coal chemical equipment in the industry.
The terminal product of this project, ethylene glycol, is widely used and is mainly used in the production of polyester, antifreeze, paint solvents, cold-resistant lubricants, surfactants and In terms of polyester polyols, etc., after the project is put into production, it will provide new momentum for the economic growth of Tianye Group. At the same time, it can provide differentiated polyester and special fiber bases and high-end olefins and engineering plastics for the follow-up projects of Shihutan New Materials Industrial Park, a key project of the Corps. The base construction provides raw material guarantee and promotes the continuous extension and growth of Tianye Group’s circular economy industry chain.
Tianye Group’s annual output of 600,000 tons of ethylene glycol project is the first project in Shihutan New Materials Industrial Park, with a total investment of 7.997 billion yuan. , construction started in August 2017. Relying on Xinjiang’s abundant coal resources and advanced coal chemical technology, Tianye Group uses coal-water slurry gasification, syngas purification, purification, separation technology and dimethyl oxalate synthesis and hydrogenation technology to produce polyester-grade ethylene glycol. The project’s equipment scale and process level are in the leading position in the industry. It has been comprehensively optimized in terms of safety, environmental protection, intelligent control, etc., and its production capacity and single production line scale are among the leading positions in the country. </p
