Dear Engineers

I am looking for your advice with regard to the calculation I am currently doing to find the remaining life of dehydrator bed.

For example:
Inlet water concentration: 50 PPMV
Outlet concentration: 0 PPMV
Inlet Flow: 30 m3/h
Operating Pressure: 16.7 barg
Operating Temperature: 28.3 degC
Inlet Composition:
Methane = 0.16
Ethane = 0.8
Propane = 98.5
i-Butane = 0.38
n-Butane = 0.08
Nitrogen = 0.08

Can you please give some references or feedback how to determine the bed life for a dehydrator column?



Many thanks