Moving port

The operating parameters are chosen to achieve successful operation, such as maximum productivity, maximum yield, minimum desorbent consumption. There are two major methods to obtain these operating parameters one is the periodic moving port analysis... 

Wankat, P. C. "Improved preparative chromatography Moving port chromatography" Ind. Eng. Chem. Fundamentals. 1984, 23, pp 256. 

Figure 43. Moving port chromatographic column with four zones for continuous chromatographic separation. ...

The flow rate and the pressure drop per unit length of the chromatographic column are much lower for the stationary port compared to the moving port system. Also, the moving port system is much less capital intensive. The moving port technique, however, is calculated to require only one-third of the column volume and ion exchange volume and two-thirds of the desorbent volume compared to the stationary port technique. 

After the expiration of the UOP patent covering the rotary valve, there have been several modifications to the moving port technique by Amalgamated Sugar,l l Illinois Water Treatment,and Mitsubishi. Each manufacturer has its own proprietary approach for the establishment and control of the chromatographic pattern. 

Continuous processes employ circulating adsorbent or moving ports so that a portion of the adsorbent is always being regenerated. Design procedures for this type of process are complicated... 

FIGURE 14.4 3 Schematic of apparatus for moving-port chromatography F - Feed, S = Solvent, P = Products, Rep nu ted with purmi 6ion from IEC Process Des- Dev., 23, 256 (1984). Copyright 1984 American Chemical Society. 

P. C. Wankal, Improved Preparative Chromatography—Moving port Chromatography, Ind. Eng. 

G. Miller, and P. C. Wankat. Moving Port Chromatography A Method of Improving Preparative... 

Marine Engineering Part of the Proceedings of the Institution of Civil Engineers (1741-7597). Started in 2004 by the ICE, this journal publishes papers that focus on such topics as fixed and moving port and harbor developments, estuarine and coastal protection, habitat creation, and seabed pipelines. 

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