id	keyword
ap-4983	adsorption column
ap-4983	adsorbent
ap-4983	air
ap-4983	temperature
ap-4983	heat
ap-4983	regeneration
ap-4983	figure
ap-4983	volume
ap-4983	ht adsorption
ap-4983	process
ap-4983	cooling
ap-4983	heater