METHOD FOR PRODUCTION OF SULFUR AND SULFURIC ACID

The present invention relates to process plant comprising a Claus reaction furnace, a means of Claus gas cooling, a Claus conversion section, a means for Claus tail gas ox- idation and a sulfuric acid section, wherein the Claus reaction furnace has an inlet and an outlet, the means of Claus gas cooling has a gas inlet, a gas outlet and optional an elemental sulfur outlet, the Claus conversion section has a gas inlet, a gas outlet and an elemental sulfur outlet, the means for sulfur oxidation has an inlet and an outlet and the sulfuric acid section has a gas inlet, a gas outlet and a sulfuric acid outlet, and wherein the inlet of the Claus reaction furnace is configured for receiving a feedstock gas, sulfuric acid, fuel and an oxidant, and the outlet of the Claus reaction furnace is configured for being in fluid communication with the inlet of the means of Claus gas cooling, wherein the outlet the means of Claus gas cooling is configured for being in fluid communication with the inlet of the Claus conversion section and wherein the inlet of the means for Claus tail gas oxidation means for sulfur oxidation is configured for be- ing in fluid communication with the outlet of said Claus conversion section gas outlet, the means for Claus tail gas oxidation outlet is configured for being in fluid communica- tion with the inlet of the sulfuric acid section, characterized further in the sulfuric acid outlet of the sulfuric acid section being in fluid communication with the inlet of said Claus reaction furnace, as well as a related process. The process has the associated benefit of such a process avoiding undesired production of sulfuric acid, as well as re- ducing the Claus process gas volume.