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In domestic urea plants, the process most commonly used is the full-circulation aqueous solution technology. In recent years, thanks to continuous technological advancements, modern aqueous urea production plants are far superior to those of over 10 years ago in terms of operational cycle length, safety and stability, as well as production management! Dear Haiyou, please take into account the actual operating conditions of your plant’s aqueous urea production facility, and tell us what is the maximum operating cycle length for such facilities in days Do not post comments regarding the aqueous-free solution process. The format for replies is as follows: 1. Production scale: expressed in terms of daily output. 2. What is the maximum operating cycle in days? 3. Raw materials for ammonia synthesis: coal, natural gas, or something else?
Our records: 1. Production scale: 570t. 2. The maximum operating cycle is 126 days. Our time is too short; I’m sorry to say this. 3. Raw material for ammonia synthesis: coal
Our two systems together have a capacity of 1,100 tons of urea per day. The operation cycle is typically more than three months before maintenance is required (mainly due to maintenance needs in the previous processing stage). Raw material: coal
Our records: 1. Production capacity: 620t/d. 2. The maximum operating cycle is: 108 days. 3. Raw material for ammonia synthesis: coal. This post was last edited by Fan Zhou Wu Hu on 2009-4-5 at 22:10.]
Our records: 1. Production scale: 500t. 2. The maximum operating cycle is 153 days. 3. Raw material for ammonia synthesis: coal
Our records: 1. Production capacity: two sets with a capacity of 1,000 T per day. 2. The longest operating cycle is around 60 days (affected by maintenance work on the front end of the equipment). 3. Raw material for ammonia synthesis: coal. This post was last edited by lxq700918 on 2009-4-6 at 21:39
In the aforementioned Haiyou introductions, the longest operating cycle for aqueous urea is 153 days as mentioned on the 5th floor; isn’t there any case where it reaches over 200 days? It is understood that it’s quite easy for the stripping process to operate for over 200 days! Is it really that difficult to achieve a maximum operating cycle of 200 days for aqueous urea solutions?
1. Production scale: 1150t (Set II). 2. Maximum operating cycle: 100 days 3. Raw material for synthetic ammonia: natural gas
Let me still introduce our records: 1. Production scale: around 350t. 2. The maximum operating cycle is 206 days. Among the records already introduced, it’s pretty okay. However, I believe there’s more to come! 3. Raw material for ammonia synthesis: coal