Where is the sampling point for the online methanol synthesis analyzer?
Thread Content
The location of the sampling point for the online methanol synthesis analyzer was designed by our design institute at the point where the fresh gas and recycled gas mix together. Is it appropriate to take samples at this location? Can it be switched to the fresh gas pipeline?
The gas entering the tower should be directed to this position, so that the gas composition entering the synthesis tower can be observed more accurately.
Our company is the same; as far as we know, there has been no such situation as you mentioned
Sure, the feed gas and fresh gas can be brought in from the previous process section
If your analysis doesn’t include fresh gas, shouldn’t the fresh gas have been measured in the previous stage? Besides, this inlet gas analysis should be available; it is used to control the inlet gas!
The design institute determines the composition of the gas fed into the tower, enabling more accurate monitoring of the gas composition
Online analysis of the gas entering the tower is appropriate; online analysis of the purified gas can be carried out in the low-temperature methanol washing unit, allowing the DCS to be connected to it