Method of removing hydrogen sulfide

Abstract

The invention provides a method of removing hydrogen sulfide from hydrocarbon fluids. The method involves using a nitroxide molecule to promote a sulfide scavenger such as alkyl-triazine. The nitroxide effectively accelerates the scavenger's activity. This allows for the avoidance of the introduction of halides into the hydrocarbon stream.

1 . A method of reducing the amount of hydrogen sulfide in a hydrocarbon fluid comprising contacting the fluid with an effective amount of a composition, the composition comprising a sulfide scavenger and a nitroxide promoter wherein the amount of nitroxide promoter is sufficient to accelerate the scavenging action of the scavenger in comparison to the scavenging action of the scavenger in the absence of the nitroxide promoter. 
     
     
         2 . The method of  claim 1  wherein the scavenger is an alkyl-triazine. 
     
     
         3 . The method of  claim 1  wherein the hydrocarbon fluid is liquid. 
     
     
         4 . The method of  claim 1  wherein the method results in no halides being added to the hydrocarbon fluid.