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Public Notice on the Approval Application for Xinjiang Yihua’s 80,000-ton Melamine Project: One new gasification furnace will be installed, utilizing the Zhonghe gasification fluidized bed technology. Author/Source: Gasification World. Date: May 16, 2023. Clicks: 69. In May 2023, the Management Committee of the Zhundong Economic and Technological Development Zone issued a public notice regarding the environmental impact assessment for Xinjiang Yihua Chemical Co., Ltd. (referred to as “Xinjiang Yihua”)’s project to produce 80,000 tons of melamine per year, prior to submitting the application for approval. Xinjiang Yihua Company plans to invest in the construction of an 80,000-ton/year melamine production facility, while also upgrading the existing ammonia/sulfuric acid urea production plants and the steam supply systems within the plant. The items to be constructed include: (1) an 80,000-ton/year melamine production facility along with a tail gas recovery system ； (2) One 7000 m3/h standby gasification furnace ； (3) Simultaneously construct a 770t/h coal-fired boiler + 75MW back-pressure power generation unit. Melamine is produced using the latest high-pressure production technology from the Italian company Otech, making it the largest melamine production facility of its kind today. The melamine project uses molten urea from Yihua Company’s existing urea production facility as raw material; it does not increase the capacity for ammonia synthesis or urea production, nor does it raise the consumption of raw coal and fuel coal. Additionally, it does not alter the production process of the existing 600,000-ton per year alcohol-ammonia co-production plant. The melamine plant is equipped with an exhaust gas recovery system to treat the exhaust gases and ammonium-poor liquid generated by the plant, while simultaneously producing urea. All the urea produced as a by-product is used as raw material for the melamine production facility. The exhaust gas recovery system mainly includes an ammonia system, a high-pressure synthesis system, a low-pressure circulation system, an evaporation and condensation system, and a desorption and hydrolysis system. The newly built backup gasifier utilizes the fluidized bed technology developed by Zhongke Hefei Gasification Technology Co., Ltd., and is consistent with the process and equipment selection of the existing gasifiers. This facility is a backup unit; it does not increase the raw material consumption of Yihua Company’s existing ammonia/sulfuric acid urea production plants, nor does it result in any additional pollutant emissions.