Device and method for separating sulfur from desulfuration solution

Abstract

The invention relates to a device for separating sulfur from a desulfuration solution, belonging to the technical field of solid-liquid separation. According to a method, sulfur in a wet oxidation desulfuration liquid is separated by virtue of a cyclone separator with an additional baffle, a ceramic plate filter, a pump and a flushing device; sulfur in the solution is enriched into a cone-shaped part of the cyclone separator by virtue of the cyclone separator, sulfur enrichment liquid which amounts for 5% of the total solution amount at the cone-shaped part is treated by virtue of the ceramicplate filter, so that the load of the ceramic plate filter is greatly reduced; and after the liquid is filtered by virtue of the ceramic plate filter, more than 95% of sulfur in the solution can be separated, so that the deposition and corrosion of sulfur in pipelines and equipment are greatly reduced, the blockage of sulfur is reduced, and the operation cycle of desulfuration equipment is greatlyprolonged.

Description

Technical field [0001] The invention belongs to the technical field of solid-liquid separation. The invention adopts a cyclone separator, a ceramic plate filter, a pump, and a flushing device to separate the sulfur in the wet oxidation desulfurization solution from the solution. Background technique [0002] As we all know, sulfur-containing industrial feed gas will cause corrosion of pipelines and equipment, and catalyst poisoning; the discharge of sulfur-containing waste gas will cause serious environmental problems. The amine method, wet oxidation method and other methods are usually used to remove hydrogen sulfide from the gas. [0003] The main methods of wet oxidation method, such as ADA method, tannin extract method, MSQ method, PDS method and complex iron method. The wet oxidation method has the advantages of being able to directly convert hydrogen sulfide into sulfur, etc., so it has been widely used in my country's coal chemical industry and natural gas fields. In the ...

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Problems solved by technology

In the desulfurization process of this method, the solution contains a certain amount of sulfur according to the different separation methods. The sulfur in the solution will cause problems such as tower and pipeline sulfur blockage, corrosion, and environmental pollution. It is difficult to meet the long-term requirements of the sulfur-containing gas desulfurization device. running requirements

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