P-CAC Head

Compared to the continuous annular chromatography systems sold by Isopro International and used throughout the ORNL studies, the P-CAC units developed by Prior Separation Technology feature several design modifications which will be presented hereafter. As can be seen from Fig. 3, the P-CAC system consist of three major parts the P-CAC head, the annular column, and the drive including the control panel. Figure 3 represents a schema of the laboratory sized P-CAC used as a Research and Development tool. 

At the P-CAC head seven different inlet ports can be used to supply the column with the feed and with different eluent solutions, while the ORNL units were equipped with only four ports. One inlet port at the P-CAC is reserved for the indication of pressure and one for the pressure relief valve. Another inlet port is designed as an inlet for the main eluent, which floods the entire annulus. 

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