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For your next separation consider adsorption

1995; Cambridge University Press; Volume: 102; Issue: 11 Linguagem: Inglês

0009-2460

Kent S. Knaebel,

Process Optimization and Integration

Adsorption is a separation process in which certain components of a gaseous or liquid phase are selectively transferred to the surface of a solid adsorbent. It can perform many separations impossible or impractical by more familiar techniques such as distillation, absorption, and membrane-based systems. Its importance has been rising in process and environmental applications alike--many new such applications have in fact been made possible by advances in adsorption technology itself. Selecting the right adsorbent for a given separation can make a big difference in how well the adsorption unit performs. Making the selection task especially important is the continual development of new adsorbents. The discussion in this article of practical principles of adsorption puts special emphasis on information helpful for adsorbent selection. Adsorption most often takes place in a fixed bed of adsorbent. The typical arrangement consists of two beds placed in parallel so that tone can be regenerated while the other is adsorbing. Regeneration methods are discussed below.