Oxidative desulfurization process with continuously regenerated desulfurizer

Abstract

The invention discloses an oxidative desulfurization process in which the desulfurizer can be continuously regenerated, which is characterized in that it comprises the following content: in a fixed bed reactor, hydrogen sulfide-containing gas, oxygen-containing gas and the desulfurizer are in contact with the desulfurizer bed to perform oxidative desulfurization And the desulfurization agent regeneration reaction, the purified gas is discharged from the top of the reactor, and the catalytic cracking diesel oil is introduced during the reaction process to dissolve the elemental sulfur generated by the regeneration reaction, and the catalytic cracking diesel oil dissolved in the elemental sulfur flows out of the reactor, and after solid-liquid separation recycle. The process has high desulfurization precision, long service life of desulfurizer, simple operation and low cost.

Description

technical field [0001] The invention relates to an oxidation desulfurization process in which a desulfurizer can be continuously regenerated. Background technique [0002] With the increasing development of the chemical synthesis industry, the consumption of industrial raw gas, various coal gases, natural gas, and synthetic raw material gas has increased significantly, and the environmental protection standards have become increasingly stringent. More stringent requirements have been put forward for various industrial and civil gas sources. Requirements, that is, the process gas must be effectively purified before industrial and civil applications, especially the removal of sulfur-containing gases, among which the removal of hydrogen sulfide is particularly important. [0003] At present, there are many methods for removing hydrogen sulfide at home and abroad, mainly including wet method and dry method. Wet desulfurization is generally suitable for raw materials with high s...

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Problems solved by technology

[0007] Although the waste desulfurizers treated by the above methods can be put into use again, these methods have a large workload and cumbersome operations. The organic solvents used have serious harm to the human body and the environment, and can cause pollution to the air, water environment and water sources. It is also difficult to deal with

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