【Major Industrial Equipment in the Chemical Industry】1.37–3 million tons/year urea production DN1800JX energy-saving urea synthesis tower

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Happy May Day! Reply reward! ---------------------------------------------- The past decade has been a period of rapid development for China’s chemical industry, marked by the emergence of many new processes, products, and equipment. There has also been significant progress in China’s chemical processing equipment, which has contributed to the swift advancement of the petrochemical sector. Here, we have compiled some of the achievements and breakthroughs made by Chinese equipment manufacturers in terms of larger-scale production and greater use of domestic equipment. We invite everyone to share their insights and engage in discussions, to cheer for Made in China and to support the development of chemical processing equipment! ****************** In 2015, Sichuan Lanxing Machinery designed and manufactured the largest urea synthesis tower in China at that time – a DN1800JX energy-saving urea synthesis tower with an annual production capacity of 300,000 tons. This urea synthesis tower was nearly 36 meters long, 1.8 meters in diameter, and weighed almost 350 tons. It employs a liquid-phase counter-current heat exchange process, enabling a carbon dioxide conversion rate of over 72.4%. Compared with domestic urea plants that use the aqueous solution full-circulation method, it can reduce the comprehensive energy consumption per ton of urea by 70.3 kg of standard coal, resulting in annual savings of more than 21,000 tons of standard coal. It can be used for the retrofitting of existing urea plants using the aqueous solution full-circulation method or for new projects. This equipment features low investment costs, simple operation, high production capacity, significant energy savings and reduced consumption, as well as minimal environmental pollution. It meets the requirements of **industrial policies and boasts broad market prospects; its technology is at an advanced level in China. It is of great significance for promoting the development of energy-saving technologies in our country, accelerating the upgrading of the urea industry, and advancing the localization of chemical processing equipment. This equipment will be put into use in the 300,000 tons per year urea production project at Sichuan Dazhou Jiuyuan Chemical Co., Ltd. In the past, such equipment was manufactured in segments at the production plant, with on-site welding and assembly. Due to the limitations of on-site conditions, the production time and cost of the product **increase**. As the largest chemical equipment manufacturer in the western region, this urea synthesis tower has **reduced the production cycle and saved tens of thousands of yuan in manufacturing costs through process innovation and integrated manufacturing.