A Sankey diagram of O2 contamination during pressure water scrubbing from a paper on ‘Oxygen Removal during Biogas Upgrading using iron-based Adsorbents’ by Toni Raabe of DBI – Gastechnologisches Institut gGmbH Freiberg in Germany.
Flows of methane, carbon dioxide, nitrogen and oxygen are shown in vol-%. The flow rate (in m³ per hour) is given in a small table at each stage of the process chain (biomethane-process chain via pressure water scrubbing).
