Decontamination of sulfur contaminants from hydrocarbons

A method for removing hydrogen sulfide from a hydrocarbon, comprising:

• (A) introducing methylmorpholine-N-oxide to a vessel, wherein the vessel comprises the hydrocarbon, and wherein the hydrocarbon comprises hydrogen sulfide, wherein the hydrogen sulfide is present in an amount of at least about 1,000 ppm;
• and
• (B) treating the hydrocarbon by allowing the methylmorpholine-N-oxide to react with the hydrogen sulfide, wherein treating the hydrocarbon comprises converting the hydrogen sulfide to elemental sulfur, wherein the elemental sulfur is removed from the vessel by way of a centrifuge;
• (C) recirculating between about one volume of the centrifuged hydrocarbon comprising the methylmorpholine-N-oxide in the vessel to about ten volumes of the centrifuged hydrocarbon comprising the methylmorpholine-N-oxide in the vessel, wherein the recirculating further comprises heating the hydrocarbon.