Recycle chromatography schematic

Figure 5.6 Schematic design for recycling chromatography in which the effluent is recycled through the pump 1, eluent 2, pump 3, injector 4, chromatographic column 5, detector 6, three way valve 7, waste 8, T-connection.

FIGURE 6-7. Recycle Chromatography, (a) Schematic. (b) Example of a recycle valve. 

The recycle reactor is shown schematically in Figure 1. It consists of a catalytic or electrocatalytic reactor unit with a bypass loop, a recycle pump and a molecular sieve trap unit. The latter comprises one or two packed bed columns in parallel each containing 2-10 g of Linde 5A molecular sieve pellets. On line gas chromatography (Shimadzu 14A) was used for the analysis of CH4, O2, CO, CO2, C2H4 and C2H6 in the reactants and products. 

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