Experimental study of a simulated counter-current adsorption system—IV. Non-isothermal operation

✍ Scribed by C.B. Ching; D.M. Ruthven

• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 691 KB
• Volume: 41
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(86)85043-6

✦ Synopsis

In an isothermal continuous counter-current adsorption separation process the product streams arc generally diluted relative to the feed. However, this limitation does not apply to a non-isothermal system and it is shown that by applying a properly controlled temperature profile one may obtain the more strongly adsorbed species at a concentration substantially greater than the feed concentration. The practical feasibility of such a system is demonstrated experimentally for the separation of fructose-glucose mixtures. Under properly selected non-isothermal conditions an extract product containing 42 % wt fructose (+ 2 % glucose) was obtained from a feed mixture containing 24 o/O of both fructose and glucose. The operation of the system and the proper choice of conditions can be understood by considering the McCabe-Thiele operating diagram.