| 摘要 |
A process and the apparatus for its embodiment, for the recovery of sulphur from gaseous streams containing hydrogen sulphide is described, consisting of: 1) a partial combustion stage wherein the reducing gas formation and the conversion of a portion of hydrogen sulphide to sulphur dioxide are promoted; 2) one or more stages of the Claus process wherein elementary sulphur is formed and wherein the reducing gases of the previous stage are retained unaltered; 3) a catalytic stage wherein the sulphur compounds contained in the Claus process tail gas are fuliy reduced by the above reducing gases to form hydrogen sulphide then converted to sulphur. |
