PROCESS OF PRODUCING SULFUR

摘要

A process for producing sulfur from acid gases which contain hydrogen sulfide. Sulfur is recovered by the Claus process and the remaining gases are purified to such a high degree that they can be safety discharged into the atmosphere. The heat required for the desorption of the laden adsorbent is recovered by subjecting the desorption gas to a heat exchange with the exhaust gas which has been heated by the heat of reaction generated by the reaction of the residual sulfur and residual hydrogen sulfide with oxygen in the afterburner. The sulfur is then separated from the desorption gas in the cooling system used in the Claus process thereby producing water vapor which is condensed, the condensate being fed to the sulfur-condensing stage and used therein to condense the sulfur.