Problems with 3052 synthetic ammonia and urea large-scale fertilizer plants
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I would like to ask for some clarification regarding the concept of 3052 in the context of ammonia synthesis and urea production. I only know that it refers to 300,000 tons of ammonia synthesis capacity accompanied by 520,000 tons of urea production capacity, but why are these numbers 30 and 52? What are the advantages of ammonia and urea production facilities of this scale? I hope experts can help answer this question. Thank you!
I came across information online regarding the equipment required for a 4580-scale fertilizer production plant: the key components of such a plant include an air separation unit with a capacity of 50,000 Nm3/h, a coal-water slurry continuous gasification unit capable of processing 2,000 tons of coal per day per furnace, a low-temperature methanol washing unit for gas purification, and a urea synthesis unit that can produce 800,000 tons of CO2-based urea per year. The advantages of this setup include a shorter construction period, reduced construction costs, improved production efficiency, and lower energy consumption. It is reasonable to assume that a 3052-scale fertilizer production plant also has similar advantages; however, no specific data on this topic could be found. I would appreciate it if experts in this field could share their insights.
4580 Large Fertilizer Plant: The overall coal consumption of the plant is 1170 Kg of standard coal per ton of ammonia produced； The overall energy consumption of the device is: 170 kWh per ton of urea, and 970 Kg of steam per ton of urea. I would appreciate it if you could provide the energy consumption figures for 3052. Thank you.
4580 is just an upgraded version of 3052； Just as the 4060 is an upgraded version of the 1830. 3052 is more scientific; 4580 isn’t quite suitable. To produce 450,000 tons of synthetic ammonia, 800,000 tons of urea are needed. Please calculate how much ammonia is required for the production of urea I’ve seen projects using 4680 or 5080.
The term \"300,000 tons of synthetic ammonia and 520,000 tons of urea\" originated in the 1970s when China introduced 18 foreign production units; it is also a name used to refer to a series or set of such units.
Reply to 4# Chemical gas purification: This 3052 approach is more scientific. Could the moderator provide a more detailed explanation? That is, why is it more scientific? What parameters are used for evaluation, or from which aspects is it assessed?
I’ve heard that 30 52 is an imported system; it uses Nissan’s 1,000-ton per day ammonia synthesis Brown process, with two-stage conversion and MDEA decarburization
Reply to 6# kessler_wang: The process associated with the 3052 device is quite mature, with a long operating history; numerous technical improvements have addressed the shortcomings of the original design, making it a truly mature process. It can be said to be the device with the lowest overall energy consumption and the most stable process control among all existing devices. Therefore, it can be said that it is more scientific.
Reply to 8# Chemical gas purification. Thank you for your reply.:)
“\"300,000 tons of synthetic ammonia and 520,000 tons of urea,\" – the scale of urea production here is determined by balancing the amounts of ammonia or CO2 produced from different raw materials (the raw materials for synthetic ammonia). Here, 3052 refers to a nominal production capacity of 520,000 tons of urea, which is achieved by using light oil as raw material for the production of synthetic ammonia, with the ammonia consumption rate associated with urea used as a benchmark for determining this capacity. If coal is used as the raw material, then due to the impact of CO2 emissions, the production capacity of urea is determined based on the CO2 consumption rate – which corresponds to the value “3048”.
Is there not enough CO2 derived from coal as a raw material?