The melamine plant of the Shaanxi Longhua project, the world’s first to utilize Eurotech’s fifth-generation triamine technology, has passed the performance assessment

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Recently, the melamine unit of the project for the clean, efficient, and comprehensive utilization of coal through classification and quality separation, carried out by Shaanxi Longhua Group Coal Industry Technology Development Co., Ltd., under the EPC contract provided by China Five Rings Engineering Corporation, a subsidiary of China Chemical Engineering, successfully passed the performance tests. It produced qualified products, with all performance test indicators exceeding the values guaranteed in the contract; the unit’s operating load reached 110%. This device represents the company’s first transfer of urea patent technology under the EPC model, and it is also the world’s first successful implementation of fifth-generation Eurotech triamine technology. Key equipment for the project, such as the dryer, ammonia electric heater, molten urea pump, and molten urea circulation pump, have been successfully localized in China. Covering an area of over 1,000 mu, this project is a key initiative included in Yulin City’s 14th Five-Year Plan. With a total investment of 7.07 billion yuan, it is expected to generate an annual output value of around 11 billion yuan once it begins operating smoothly. The annual tax payments are projected to amount to 1.13 billion yuan, and the project will create more than 1,200 job opportunities. At present, the ammonia synthesis and urea production facilities built by the company have been successfully put into operation in August 2024. As a high-value chemical product, melamine has a wide range of application areas and stable demand. By setting up melamine plants downstream of urea production, urea manufacturers can transition from merely producing fertilizers to engaging in the field of fine chemicals, thereby expanding their product portfolio, reducing their dependence on the urea market alone, and enhancing their resilience to risks. Adopting a model of \"clean production, circular development, and centralized facility management,\" this project utilizes new technologies to extend the industrial chain. It aims to build the largest urea production facility of its kind in China within a green energy framework; once completed, it will be capable of producing 500,000 tons per year of synthetic ammonia, 800,000 tons per year of urea, and 60,000 tons per year of melamine. This facility is of great significance for promoting the development and strengthening of the coal industry, as well as for increasing the added value of coal resources, thereby enabling the clean, efficient utilization of coal resources and their transformation into higher-value, diversified products. The project team fully embodied the \"Six Dedications\" spirit, worked together to overcome challenges such as tight deadlines and new manufacturing processes, and put forward various optimization suggestions based on their engineering experience, striving hard to advance the construction of the melamine plant. During the commissioning phase, engineers from various specialties worked closely with the owner and patent holders, responding promptly to provide strong technical support for the smooth operation of the installation.