[Ten years of major development in chemical technology] 171-2023 The world's first melamine plant with the largest single-line production capacity begins trial production

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Chemical science and technology has developed greatly in the past ten years, praising China's prosperity and strength. It is more exciting with everyone's participation. The ocean is more exciting with you. Everyone is welcome to participate in the forum to discuss the fire in July and pay attention to fire prevention. --------------------------------------------------The first phase of the Sichuan Jinxiang Sairui 300,000-ton cyanamide and carbon-nitrogen new material integration project adopts the fourth-generation pressurized vapor phase quenching process of Beijing Yejing Technology Co., Ltd. The tail gas by-product of the triamine plant is sold to Sichuan Jinxiang Sairui Chemical Co., Ltd. to be used as raw material in the proposed "Tail Gas Comprehensive Utilization Project". It is reported that the device adopts the fifth generation energy-saving and capital-saving gas-phase quenching melamine production technology with completely independent intellectual property rights, and has optimized and upgraded the comprehensive utilization of energy in the system. It has developed a new generation of reactors, high-temperature filters, crystallizers, high-efficiency cyclone separators, and urea washing and purification systems. and catalysts and other process technologies will further increase the product yield. The comprehensive energy consumption per ton of product is only 45% of the industry's advanced value. We strive to completely solve the various pain points of the first four generations of gas phase quenching process melamine technology, which can enable the device to achieve long-term, safe and full-load operation throughout the year, and greatly improve product quality. All equipment, equipment and materials are domestically produced, and the investment is more than 40% lower than similar technologies at home and abroad. The entire device adopts the company's independently developed melamine tail gas treatment technology, fully utilizes the by-product steam of the melamine plant, and completely recovers ammonia and carbon dioxide in the tail gas, achieving high-value comprehensive utilization of the tail gas. There is no process wastewater and waste gas emissions in the production process, pushing my country's green and low-carbon melamine production technology to a new level in the global industry. The integrated project with an annual output of 300,000 tons of cyanamide and carbon-nitrogen new materials is a key project for Jinxiang Serui Company to achieve industrial upgrading in Meishan during the 14th Five-Year Plan period, and is listed in Sichuan Province * * Key industrial projects during the 14th Five-Year Plan period. The project uses natural gas as raw material and will be constructed in three phases according to the overall plan of the integrated industrial chain, creating the world's first green chemical industry base for the "Cyanamide Family Carbon and Nitrogen New Materials" using melamine, dicyandiamide and monocyanamide as synthetic monomers. In July 2023, the world's first melamine production device with the largest single-line production capacity and the most energy-saving gas phase quenching process - Sichuan Jinxiang Serui Chemical Co., Ltd.'s annual 300,000-ton cyanamide and carbon-nitrogen new material integration project phase I project has recently been put into trial production. On July 7, 2023, in the production workshop of Sichuan Jinxiang Sairui Chemical Co., Ltd. located in Meishan High-tech Industrial Park, workers were busy on their respective production lines, with all links including off-line, sub-packaging, and transportation in an orderly manner.