Answer:
Follows are the solution to this question:
Explanation:
Methane inlet humidity content of 
Methane moisture outlet content 
Zeolite absorption humidity 
Dry zeolite 1 kg will accommodate water
One kilogram of Dry Zeolite will carry water from 
The water can contain 1000 kg of zeolite 
Methane which would be made 
That's why it will be producing 1439 kg of methane.