Sulphur recovery process from acid tail gas and environmental implications

Removal of sour gases from acid gas during processing of natural gas is one of the necessary steps towards harnessing fuel efficiency. Our studies on selection of suitable sulfur recoveryprocess from acid gas revealed that liquid phase oxidation process is best suited for safe disposal of acid gas. The liquid redox processessuch as LOCAT process (Hydrogen sulphide being absorbed in chelated iron solution) and SulFerox process (converting H2S in sourgas to elemental sulfur through reaction with ferric ion) were observed highly efficient. Iron chelate based liquid phase oxidationprocess has been observed most suitable for treating the acid gas generated at Oil and Natural Gas Commission (ONGC) Plant. BothLOCAT and SulFerox processes are, hence, recommended to ONGC in the turnkey package for potential decision support in favour of designing ONGC plant

کلیدواژه ها:

Sulfur recovery ، Acid gas ، Chelate process ، Absorbent ، Locat ، Sulferox ، ONGC ،