Adsorption Flashcards
Adsorption
Adhesion of atoms from gas or liquid to a surface
Chromatography
*Similar process that uses solid packing to separate components
*Components separate from each other due to different partitioning of components in stationary phase
Ion Exchanger
*Contains charged groups that interact with ions in liquids
*Water softening: replace magnesium and calcium ions with sodium ions
Temperature Swing Adsorption
*Use of high adsorbing adsorbent at low temperature.
*Adsorbent recovered in HIGH temperature
Pressure Swing Adsorption
*Use of high adsorbing adsorbent at HIGH pressure.
*Adsorbent recovered in LOW pressure
Vacuum Pressure Swing Adsorption.
*Use of high adsorbing adsorbent at HIGH pressure.
*Adsorbent recovered in VACCUM pressure
Adsorption vs Ion Exchange
*Ion exchange involves chemical reaction
*Adsorption does not
*Gas-Solid Chromatography
*Gas-Liquid Chromatography
*Gas-Solid Chromatography
+Solid is stationary phase
*Gas-Liquid Chromatography
+Very viscous liquid in inert solid is stationary phase