Temperature swing regeneration

The pressure used in temperature-swing regeneration is usually that of the ndsorption step. This essures that there is negligible pressure drop across closed adsorber valves so that cross-contamination is minimized. It also means there is no need for separate steps to pressurize and depressurize the adsorbers. Occasionally, it may be worthwhile to use a lower pressure for regeneration, either to achieve better desorption or because the fluid is only available ai and/or deliverable to rhet pressure. 

Peak fiaring is a variation of temperature-swing regeneration where a portion of the regenemtion effiueni is sent to a flare, incinerator, or fiimnce. The rest of the effiueni (hea must be blended wirh the feed fluid to be rat rented. The utility is that (he contaminam can be rejected with a smaller amount of Lha valuable stream,... 

In temperature-swing regeneration, there are two steps necessary to accomplish desorption (1) heat must be added to the adsorbate and adsorbent to raise them to desoi on conditions and to provide the endothermic heat of desorption (2) the desorbed species must be transferred away from the adsorbent. When the former is the limiting step, it is termed heating- (or stoichiometric-) limited regeneration. " The latter is referred to as stripping- (or equilibrium-) limited regeneration. 

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