Defengyuan (Hami) Chemical Technology Co., Ltd.’s integrated project for producing 60,000 tons of green hydrogen and 180,000 tons of green melamine – high-end chemical materials

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On November 4, the official website of the Xinjiang Uyghur Autonomous Region Environmental Protection Industry Association published a notice regarding the planned approval process for the environmental impact assessment of Defengyuan (Hami) Chemical Technology Co., Ltd.’s integrated project for producing 60,000 tons of green hydrogen and 180,000 tons of high-quality green melamine as advanced chemical materials. According to Hydrogen Energy Insights, the main components of this project include: a hydrogen production facility capable of producing 60,000 tons per year through water electrolysis, a hydrogen storage system using titanium-based solid alloys with a capacity of 40 tons, an ammonia synthesis plant with a capacity of 340,000 tons per year, a urea production facility with a capacity of 900,000 tons per year, 2 melamine production plants, each with a capacity of 90,000 tons per year, and 2 new types of compound fertilizer production plants, each with a capacity of 400,000 tons per year ； Public utilities include: heating, water supply, drainage, and power supply and distribution systems ； Storage and transportation engineering includes: liquid ammonia spherical tanks, product warehouses, and other storage facilities for raw materials and auxiliary materials ； Auxiliary facilities include: circulating water stations, substations, comprehensive office buildings, etc ； Environmental protection projects include exhaust gas treatment facilities, wastewater treatment facilities, temporary solid waste storage facilities, noise control measures, and environmental risk prevention and control facilities. In terms of hydrogen production equipment, the maximum hydrogen production capacity is 126,000 Nm3/h, with an annual hydrogen output of 60,000 tons, and 480,000 tons of oxygen produced as a by-product. This project includes 8 electrolysis water production workshops, equipped with 128 electrolyzers (2 as spares). Each electrolyzer produces 1000 Nm3/h of hydrogen, at a pressure of 1.5 Mpa (for the hydrogen gas at the purification outlet) ； Each electrolysis workshop is equipped with 16 electrolyzers, 4 gas-liquid separation systems, 2 hydrogen purification systems, and 2 oxygen purification systems. Each group of 4 electrolyzers shares 1 gas-liquid separation system, while 1 hydrogen purification and 1 oxygen purification facility are provided for every 2 gas-liquid separation systems. Supporting facilities for water and alkali injection are to be built. In terms of hydrogen storage equipment, the maximum hydrogen storage capacity is 40 tons. The solid-state hydrogen storage system includes hydrogen storage modules, a heating system, a cooling system, gas circulation pipelines, and so on. This project uses 8 hydrogen storage modules of 1000 Nm3 each, integrated into one container; by combining two such containers, an optimal hydrogen storage container unit with a capacity of 1.43 t is created. 27 such storage units connected in parallel enable a hydrogen storage capacity of 38.61 t.