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Gas desulfurizing-regenerating technological method and equipment with remarkable energy-saving effect by liquid-phase catalyzed oxidation

A liquid-phase catalysis and oxidation technology, applied in the field of desulfurization, can solve the problems of unstable process control, unstable air intake, low efficiency, etc.

Inactive Publication Date: 2007-03-28
山西源辉节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, liquid-gas injectors are very inefficient devices, and their efficiency further decreases with the increase of volumetric injection coefficient
The normal volume injection coefficient is less than 1, but this equipment is used for desulfurization rich mother liquor regeneration, its volume injection coefficient is as high as 3.5, so the energy consumption is high
Due to the unstable air intake, the process control is unstable

Method used

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  • Gas desulfurizing-regenerating technological method and equipment with remarkable energy-saving effect by liquid-phase catalyzed oxidation
  • Gas desulfurizing-regenerating technological method and equipment with remarkable energy-saving effect by liquid-phase catalyzed oxidation
  • Gas desulfurizing-regenerating technological method and equipment with remarkable energy-saving effect by liquid-phase catalyzed oxidation

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Embodiment Construction

[0021] The object of the present invention is achieved by following technological process and method:

[0022] 1. New desulfurization regeneration process flow I (shown in Figure 4): process system consists of desulfurization tower 1, reaction tank 3, low-pressure double-jet regenerator 15, regeneration tank 10, liquid level regulator 7, lean mother liquor storage tank 11, lean Mother liquor pump 12, mother liquor heater 5, air blower 13 and other equipment. Gas desulfurization is the same as the typical process. The process flow of the circulating mother liquor is as follows: the mother liquor flows directly down from the high-position desulfurization tower 1 into the reaction tank 3, and the rich mother liquor reacted for a certain period of time enters the low-pressure double-jet regenerator 15 from the upper part of the reaction tank near the remaining head to form a jet flow and forced delivery. The incoming air jets are mixed in the low-pressure double-jet regenerator 1...

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Abstract

The present invention relates to a liquid-phase catalytic oxidation method gas sweetening regeneration process and its equipment, belonging to the field of sweetening technology. It is characterized by that said invention adopts a new-type low-pressure double-jet regenerator. Its rich mother liquor working pressure difference is low pressure (0.03-0.08 MPa), the desulfurizing tower and reaction tank are combined into one body, and its rich mother liquor outlet is set in the upper portion of said reaction tank, and the desulfurizing tower, reaction tank, low-pressure double-jet regenerator and regeneration tank are arranged according to ladder form. Said invention also can obtain obvious energy-saving effect.

Description

(1) Technical field: [0001] The invention relates to a process and a device for desulfurization and mother liquor regeneration of gas containing hydrogen sulfide and other sulfides by means of a liquid-phase catalytic oxidation method. The technology belongs to the technical field of desulfurization. (two) background technology: [0002] There are two typical processes for desulfurization of gas containing hydrogen sulfide by liquid-phase catalytic oxidation. The principle is the same, and weak alkali solution (mother liquor) is selected as the absorbent. Sodium carbonate can be used as the alkali source, and ammonia water can also be used as the alkali source. The oxygen carrier is added to the alkaline solution to act as a catalyst to convert the hydrogen sulfide absorbed by the solution into sodium sulfide (ammonium) or sodium polysulfide (ammonium), and then use oxygen in the air as an oxidant to further oxidize into sulfur, which is separated from the solution. The s...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D53/52
Inventor 杨以威杨立
Owner 山西源辉节能科技有限公司
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