The products produced by United Chemical Co., Ltd. use natural gas from the Ordos Sulige Gas Field as the main raw material, and are equipped with corresponding water, electricity, and gas energy sources. In the first phase, 600,000 tons/year of synthetic ammonia and 104 The industrial scale of urea is 10,000 tons/year. The project started construction on May 20, 2006 and was put into production on November 8, 2008. This project is the largest urea project in the country and the largest single-system production capacity in the world. The project can achieve annual sales revenue of 2 billion yuan and profits and taxes of 500 million yuan.
The company introduced two sets of synthetic ammonia and two sets of urea units from South Korea's Nanhai Chemical Co., Ltd. and one set of large-granule urea units from the Netherlands' Hefeng for production. After the synthesis tower internals, the key equipment of the ammonia synthesis unit, have been transformed by introducing the world's advanced Swiss Casale patented technology, a single unit can produce 1,000 tons of synthetic ammonia per day. The comprehensive energy consumption per ton of ammonia of the ammonia synthesis unit has been reduced from 10 GCal before the transformation to 8.5 GCal has become one of the leading energy-saving devices of its kind in the country. The urea unit adopts the world's most famous Dutch Stamicarbon 200CO2 stripping patented technology and large synthesis ring process. It also uses Safure, a new patented corrosion-resistant material, to achieve oxygen-free operation.
This project also carried out a large-scale transformation of the automatic control system. The 11 compressor units adopted the most advanced ITCC automatic control system, and the control systems were all changed to the most advanced DCS distributed control system (fourth generation). technology).