Study on a numerical model and PSA (pressure swing adsorption) process experiment for CH4/CO2 separation from biogas.

摘要: Abstract We investigated the separation of CH 4 /CO 2 (54.9%/45.1%) mixture gas from biogas through PSA (pressure swing adsorption) experiment and numerical simulation. To understand adsorption characteristics , equilibrium amount pure is measured key parameters model are determined using Langmuir isotherm model. A developed optimization study kinetic parameter porosity with experimental data. The LDF (linear driving force) constants CO selected as 0.03 0.0005 for 0.3, respectively, cyclic steady state process obtained at 13th cycle by simulation process. As pressure purge ratio increase, purity increases while recovery decreases. On other hand, desorption decreases, decreases in each case because product increases. optimum selectivity present conditions found to be 1.9 [CO adsorbed (2.47 mol/kg-ads)/CH (1.30 mol/kg-ads)].