Absorption and desorption of carbon dioxide
Absorption of CO.sub.2 and/or H.sub.2 S utilizing solutions cont
Absorption of hydrogen sulfide and absorbent composition therefo
Absorption of hydrogen sulfide with an alkali metal ethylenediam
Absorption of pollutant material from a polluted gas
Absorption of sulfur compounds from gas streams
Absorption of sulfur dioxide from gases by ferrous sulfate
Absorption of sulfur oxides from flue gas
Absorption of sulfur oxides from hot gases
Absorption of wet conversion gas
Absorption system
Absorptive low bulk density product from sodium sesquicarbonate
Acetylene black
Acetylene black with high electrical conductivity and high absor
Acetylene-like black and process
Acetylide catalyst and process of producing hydrogen
Acicular calcite and aragonite calcium carbonate
Acid concentration control in SO.sub.3 absorption
Acid gas removal process
Acid gas separation