INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, cilt.32, ss.1246-1250, 2007 (SCI-Expanded)
Hydrogen sulphide, an acid gas, is generally considered an environmental pollutant. As an industrial byproduct, it is produced mostly during fuel processing. Hydrogen sulphide occurs naturally in many gas wells and also in gas hydrates and gas-saturated sediments especially at the bottom of the Black Sea where 90% of the sea water is anaerobic.