What is "deoxygenation"

Deoxygenation \De*ox`y*gen*a"tion\, n. (Chem.) The act or operation of depriving of oxygen.

n. The removal of oxygen atoms or molecules from a material

Deoxygenation is a chemical reaction involving the removal of oxygen atoms from a molecule. The term also refers to the removal molecular oxygen (O) from gases and solvents, a step in air-free technique and gas purifiers. As applied to organic compounds, deoxygenation is a component of fuels production as well a type of reaction employed in organic synthesis, e.g. of pharmaceuticals.