Urea production process using carbon dioxide stripping with an annual output of 300,000 tons
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1. How to determine the ammonia-to-carbon ratio and water-to-carbon ratio of a system? 2. What are the methods and precautions for system shutdown emissions? 3. How to operate a distillation tower? 4. How to control the biuret content of the system? This post was last edited by lxq700918 on 2008-12-11 22:00]
I work in this industry, specifically in the carbon dioxide stripping process for producing 800,000 tons of urea per year. To answer your four questions would require a long piece of text; it can’t be explained in just one or two sentences. Get in touch with me when you have time, and we can discuss it.
In fact, for urea plants using the air lift process, the control of the N/C and H/C ratios is basically the same; it’s just that the specific control standards may vary. As long as you follow the operating procedures for your system and carefully analyze the methods for controlling each parameter, you will surely find the best way to operate it. There is also a need for control of certain parameters; for example, what the N/C ratio is at the initial stage, what it becomes later on, and what happens in the most severe cases. It is necessary to conduct a thorough analysis of the specific circumstances to find the best solution.