Oxidative desulfurization process for continuous regeneration of desulfurizing agent

Abstract

The invention discloses an oxidative desulfurization process for continuous regeneration of a desulfurization agent. The process is characterized by comprising the following steps: hydrogen sulfide-containing gas and oxygen-containing gas are in contact with the desulfurization agent at a desulfurization agent bed layer in a fixed bed reactor for oxidative desulfurization and desulfurization agent regeneration reaction, purified gas is discharged from the top of the reactor, catalytic cracking diesel is introduced in a reaction process for dissolving elemental sulfur generated in the regeneration reaction, and the catalytic cracking diesel in which elemental sulfur is dissolved flows out of the reactor and is subjected to solid-liquid separation for recycling. According to the process, the desulfurization precision is high, the desulfurization agent is long in service life, the operation is simple, and the cost is low.

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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