Environment-friendly sulfur removal agent and removal technology thereof

Abstract

The invention relates to the technical field of organic sulfur removal, in particular to an environment-friendly sulfur removal agent and a removal technology thereof. The environment-friendly sulfurremoval agent is prepared from triazine derivatives, an anti-scaling agent and an activating agent in a certain ratio, wherein in percent by volume, the triazine derivatives accounts for 65-90%, the anti-scaling agent accounts for 1-30%, the activating agent accounts for 5-10%, the triazine derivatives react with organic sulfur, the anti-scaling agent is used for inhibiting scaling of high-hardness gas field water, the organic sulfur is insoluble in water, and the triazine derivatives are water soluble, so that the activating agent is used for quickening reaction between the triazine derivatives and the organic sulfur, and products after reaction are soluble in water. A filling technology adopts spray filling, the filling is carried out by adopting a spraying mode behind a sulfur removal tower in a gas field with high sulfur content, spray filling is directly carried out at the wellhead in a gas field with low sulfur content, and the average particle size during filling is less than 40microns. Compared with the traditional sulfur removal agent, the novel environment-friendly sulfur removal agent has the characteristics of high filling efficiency, no toxicity, no harm, no secondarypollution and applicability of products to industrial production.

Description

technical field [0001] The invention relates to the technical field of organic sulfur removal, in particular to an environment-friendly sulfur removal agent and a removal process. Background technique [0002] Organic sulfur is an organic compound mainly composed of methyl sulfide and ethyl sulfide, which is highly volatile, highly toxic and odorous, and insoluble in water. In gas wells in sour gas fields or highly sour gas fields, highly volatile organic sulfur mostly exists in the gas phase (natural gas) as small solid particles, and a small amount is dispersed in the liquid phase of the production fluid. Since organic sulfur is insoluble in water, it is very It is difficult to remove, which not only affects the separation and treatment of natural gas, but also the hydrogen sulfide produced in the post-treatment process of organic sulfur will cause cracks in pipelines and equipment, etc., which not only increases the cost of treatment but also increases the risk, so in t...

AI Technical Summary

Problems solved by technology

[0004] At present, in the existing filling process of oil and gas fields, pumps are generally used to inject directly into the pipeline, so that the injected chemical solvent can be freely dispersed with the flow direction of the produced liquid and natural gas to achieve sulfur dissolution, but this method has a large output When the dispersion effect is poor, a large amount of solvent needs to be added to achieve the same effect. Therefore, the spray injection process can quickly realize the dispersion of chemical solvents during pipeline filling, which not only improves chemical solvents and high salinity and organic solvents. Sulfur binding area and can improve the efficiency of chemical solvents