Packet 6: Tossup 1

Isotope exchange between water and this compound drives the isolation of deuterium in the Geib–Spevack (10[1])process. Oxidizing filters use a manganese oxide layer to filter iron and this compound from wastewater. Carbon dioxide (10[1])and this gas are removed in processes that use compounds like MEA, DEA, and MDEA. (-5[1])Hydrotreating processes can produce this gas from cobalt- (10[1])or molybdenum-catalyzed hydrogenolysis reactions. This gas is used as fuel (-5[1])for the combustion reaction that begins the Claus process (10[2])after (-5[1])being stripped by an amine scrubber. After being removed during crude oil refinement, (-5[1])this gas (10[1])is (10[1])combusted (-5[1])in the first step of the wet sulfuric (-5[1])acid process. Sour gas contains (10[1])high levels of this gas, (10[2])which is produced by sulfate-reducing bacteria. (-5[1])For 10 points, name this poisonous gas whose smell is likened (10[1])to rotten eggs. (10[1])■END■ (10[4]0[8])

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