2.2.2. Experimental Apparatus

The experimental apparatus is shown in Figure 1.

**Figure 1.** Flowsheet of the experimental apparatus: PI—pressure indicator; V-i—valves; MFC—mass flow controller; MFM—mass flow meter; PC—pressure controller; AC—adsorption column; analyzer—URAS ABB.

Details of the piping and control instrumentation are reported in a previous paper [22].
