Design of ammonia exhaust pipeline for low-temperature methanol washing
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Since the shift unit cannot rely solely on the ammonia scrubber to remove ammonia from the shift gas, I would like to know how the low-temperature methanol washing unit, which is well-known among those in this field, addresses the issue of ammonia emission. Please answer the following questions: 1. Which design company was responsible for it? 2. What is the operating condition? 3. And how should the ammonia discharge pipeline be designed? 4. How often should ammonia drainage be carried out? 5. Does the ammonia discharge operation affect the stable operation of the sulfur recovery unit? PS: The low-temperature methanol washing unit mentioned by the poster was designed by Linde; under normal operating conditions at full load, the gas flow rate is 26.3 w Nm3/h
Does it refer to the ammonia content in the low-temperature section? 1ppm。
1PPM is still high; our target is below 50ppM
1. Which design company? Ningbo Design Institute 2. What are the operating conditions? It now meets 110% of requirement 3. And how should the ammonia discharge pipeline be designed? Ammonia venting pipeline not installed. 4. How often should ammonia venting be carried out? 5. Does the ammonia discharge operation affect the stable operation of the sulfur recovery unit?
The requirement for water gas entering the low-methane system is 1 ppm, while the ammonia content required in that system is 100 ppm.
The ammonia content in lean methanol is less than 60 mg/l
How is the ammonia exhaust pipeline of your plant designed? Is a sulfur recovery unit installed? If so, does the ammonia exhaust process affect the operation of the sulfur recovery unit, and how is that handled?
Pick it up, support the OP; the OP is so cool