Dear sir,
I am saqlain final year student of chemical engineering.
I am working on a project “Process Design for Biogas Purification”. i am designing a packed absorber for the removal of co2. The literature I am referring www.epa.gov/ttn/catc/dir1/cs5-2ch1.pdf.
I have two problems
First I have no equilibrium data for co2-weter system at 10 atm for the development of equilibrium curve. So I calculate the water flow rate required for the desired separation.
Second the literature assumes low concentration of co2 in gas. In the case of biogas there is concentrated feed. What changes in design procedure are required?
Data for design problem:
Biogas rate: 13000 kg/hr
Operating Pressure: 10 atm
Inlet co2 concentration: 40% by volume
Removal efficiency required : 95% (Outlet Conc: 1-0.95 x 0.4= 0.02) =2%