Method of producing sulfur from acid gases

Abstract

Abstract A PROCESS FOR PRODUCING SULFUR FROM A GAS CONTAINING A LARGE AMOUNT OF HYDROGEN SULFIDE. THE PROCESS INVOLVES REACTING OXYGEN AND HYDROGEN SULFIDE WITH COOLING SO THAT THE EFFLUENT THEREFROM IS AT A TEMPERATURE BETWEEN 550* TO 650*F. THOSE REACTION GASES ARE REACTED IN A CLUAS REACTOR. THE EFFLUENT GAS LEAVE AT A TEMPERATURE BETWEEN 600* AND 750*F. LIQUID SULFUR IS REMOVED FROM THE GASES BY LOWERING THE TEMPERATURE OF THE GASES TO 270* TO 320* F. IN A CONDENSER. THE GASES ARE FURTHER TREATED IN A LIQUIDVAPOR CONTACTOR BY MEANS OF CHILLED WATER, WHEREBY THE WATER VAPOR IN THE GASES IS REMOVED. THE TEMPERATURE OF THE GASES IS RAISED TO 425* TO 500*F. BY USING THE HOT GASES ENTERING THE ABOVE CONDENSER AS THE HEATING MEANS. THE HEATED GAS ARE SUBJECTED TO REACTION IN A CLAUS REACTOR. LIQUID SULFUR IS REMOVED FROM THE EFFLUENT GASES BY LOWERING THE TEMPERATURE OF THE GASES TO 270* C, TO 320*F. IN A CONDENSER. THE COOLED EFFLUENT GASES CAN BE ADMIXED WITH THE REACTION GASES FROM A REACTION OF OXYGEN AND A GAS RICH IN HYDROGEN SULFIDE. THAT ADMIXTURE IS THEN SUBJECTED TO REACTION IN A CLAUS REACTOR, AND LIQUID SULFUR IS REMOVED, FROM THE EFFLUENT GASES BY LOWERING THE TEMPERATURE OF THE EFFLUENT GASES TO 270* TO 320*F. IN A CONDENSER. A PORTION OF THE COOLED EFFLUENT GAS LEAVING THE LAST CONDENSER CAN BE ADMIXED WITH THE REACTION GASES ENTERING THE FIRST CLAUS REACTOR.

Inventors

• 👤 R Smith

Bibliographic Details