
88
C
Claus Reactor
Claus Reactor: Equipment in acid gas treatment unit where Claus reaction is
developed for sulfur recovery: transforms the H
2
S to elemental sulfur forc-
ing the gas to react with oxygen.
Clay: (1) Filtering medium, especially fuller’s earth, used in reneries,
for the purpose of absorbing the solids or colorizing materials in oils.
(2)Ane grain (<0.00015 in. or about 4 µm)—nely crystalline silica sheet
minerals. Usually of silicate composition. In oil eld terms, the most com-
mon clays are smectite (montmorillonite), illite, kaolinite, and chlorite.
The characteristic for authigenic clay