Abstract: Conventionally H.sub.2 S laden gases are amine scrubbed, the H.sub.2 S sprung from the amine, converted to sulfur in the Claus process and the tail gas from the Claus process scrubbed in a tail gas facility such as Beavon-Stretford, Shell SCOT or IFP. The instant disclosure eliminates the aforementioned scrubbing processes by reducing SO.sub.2 in Claus tail gas with a hydrogen rich gas to H.sub.2 S and condensing water out of this reduced product. The dehydrated product having a lower sulfur level is compressed and admixed with other refinery gases in a refinery fuel gas mixing vessel and used as fuel in the refinery.