[Ten years of major development in chemical technology] 018-2023 Meishan Jinxiang’s world’s first single-line production line with an annual output of 100,000 tons of melamine will be put into production soon

According to the person in charge of the project engineering headquarters, this project is the first phase of the integrated project of Sichuan Jinxiang Sairui Chemical Co., Ltd. with an annual output of 300,000 tons of cyanamide and carbon-nitrogen new materials. It is the world's first melamine production device with the largest single-line production capacity and the most energy-saving gas phase quenching process. Since the start of construction in November last year, through careful preparation and precise scheduling by the project engineering headquarters, all participating units have overcome difficulties such as epidemic prevention and control and the long Spring Festival holiday, worked together and worked hard continuously. In less than half a year, they have fully outperformed the new speed of Meishan industrial project construction and completed the project construction tasks to high standards. 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.

[Ten years of major development in chemical technology] 017-2023 Southwest Research Institute’s low-pressure methanol synthesis process and synthesis catalysts will be replaced by localization https://bbs.hcbbs.com/thread-3596664-1-1.html (Source: Huahaichuanliu-Haichuan.com)

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. It is understood that Meishan High-tech Industrial Park is a provincial-level high-tech zone. In January 2022, it was approved as the first batch of "5+1" key characteristic parks in the province, and in April 2022, it was approved as the first batch of chemical industrial parks in the province. The planned area of ​​the park is 64.64 square kilometers, of which the chemical industry park has a certified area of ​​8.47 square kilometers. The park adheres to the strategic positioning of "Twin Cities Science and Technology Innovation Valley·Green Industrial City" and focuses on the leading industries of green chemicals, new energy and new materials, biomedicine, and green food. It has already settled in many chemical industry champion companies such as Jinxiang Serui, Wanhua Chemical, and Shida Shenghua. It is seizing the opportunities of the Chengdu-Chongqing economic circle and the urbanization of Chengde-Meizi to accelerate the construction of a number of global and domestic first technological achievement projects, striving to exceed RMB 100 billion in industrial output value during the "14th Five-Year Plan" period. There are currently 133 regulated enterprises in the park. * * There are 30 high-tech enterprises, with * * It has one national-level technology business incubator and won two individual championships in the manufacturing industry from the Ministry of Industry and Information Technology.

[Ten Years of Development in Chemical Technology] A series of summary posts, which are being updated continuously! https://bbs.hcbbs.com/thread-3594069-1-1.html (Source: Huahaichuanliu-Haichuan.com)

The comprehensive energy utilization of gas-phase quenching melamine production technology has been optimized and upgraded, and a new generation of reactors, high-temperature filters, crystallizers, high-efficiency cyclone separators, urea washing and purification systems and catalysts have been developed to further increase product yield. The comprehensive energy consumption per ton of product is only 45% of the industry's advanced value, and efforts have been made to completely solve various pain points of the first four generations of gas-phase quenching process melamine technology.