A method for removing hydrogen sulfide from a hydrogen sulfide mixed gas containing impurities such as hydrocarbons

摘要

There is provided a method for removing hydrogen sulfide gas from a hydrogen sulfide mixed gas containing impurities such as hydrocarbons.;According to the method of the present invention, hydrocarbon impurities are removed by oxidation with hydrogen sulfide containing hydrocarbons to remove hydrocarbon impurities, and sulfur dioxide formed by the oxidation reaction is reduced to a molar ratio of hydrogen sulfide to sulfur dioxide of 2: 1 And then introducing it into the Klaus process to remove it.;When the temperature rises above the operating temperature due to excessive oxidation heat during the operation, the air (oxygen) supply amount is decreased and the unreacted material By using the endothermic reaction of the catalyst.;According to this method, it is possible to easily and cheaply remove hydrogen sulfide in the mixed gas by maintaining and controlling the operating temperature of the oxidizing furnace without introducing additional fuel.