Adsorption regeneration temperature-swing

A temperature-swing, or thermal-swing, adsorption (TSA) process cycle is one in which desorption takes place at a temperature much higher than adsorption. The elevation of temperature is used to shift the adsorption equilibrium and affect regeneration of the adsorbent. Figure 16-38 depicts a simplified (and ideal) TSA cycle. The feed fluid containing an adsorbate at a partial pressure of p1 is passed through an... 

Temperature standards, 75 749 Temperature swing adsorption (TSA) process, 73 459, 7 636-642 damage to internal structure of adsorbent, 7 636 design, 7 656 regeneration, 7 655... 

Compared to adsorption s use in bulk-gas separations, its use in gas purifications is much more frequent (see Table I and references 13, 36 and 37), and the technology is, for the most part, more conventional Temperature-swing adsorption, often combined with inert-purge stripping, is by far the most common process used Two or more fixed beds operated in parallel, typically with one adsorbing and one or more regenerating, constitute the standard flowsheet ... 

Temperature-swing adsorption processes have to identical, parallel adsorption beds. One of the beds is in the adsorption cycle while the other bed is being regenerated by heating with a regenerating gas. The two beds generally operate 180 degrees out of phase (Knaebel, 1999). 

Three generic adsorptive process schemes have been commercialized to serve most of the applications shown in Table 1. They include 1) temperature swing adsorption (TSA) 2) pressure swing adsorption (PSA) and 3) concentration swing adsorption (CSA).P The fluid mixture (feed) to be separated is passed over a regenerated adsorbent (contained in an adsorber vessel) to produce a stream enriched in the less strongly adsorbed components of the mixture. 

---