Patent ID: 7744677

Claim:
A method for processing a gas stream, comprising: removing a first portion of a constituent of a gas stream from a first portion of the gas stream by adsorbing the first portion of the constituent to a first adsorbent; transferring heat from a second adsorbent to the first adsorbent to heat and at least partially purge the first adsorbent and cool the second adsorbent; removing a second portion of the constituent from a second portion of the gas stream by adsorbing the second portion of the constituent to a third adsorbent; transferring heat from the first adsorbent to the third adsorbent to heat and at least partially purge the third adsorbent and cool the first adsorbent; removing a third portion of the constituent from a third portion of the gas stream by adsorbing the third portion of the constituent to the second adsorbent; and transferring heat from the third adsorbent to the second adsorbent to heat and at least partially purge the second adsorbent and cool the third adsorbent.