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Absorption liquid for gas desulfurization and desulfurization method thereof

A technology for absorbing liquid and gas, applied in separation methods, sulfur preparation/purification, chemical instruments and methods, etc., can solve the problems of slow catalyst regeneration, many side reactions, fast degradation, etc. The effect of slow speed and high desulfurization efficiency

Inactive Publication Date: 2009-12-30
苏喜太
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the above problems such as tower blockage, slow catalyst regeneration speed, fast degradation, many side reactions, and high cost, the present invention proposes a gas desulfurization absorbing liquid and its application

Method used

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  • Absorption liquid for gas desulfurization and desulfurization method thereof

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Experimental program
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Effect test

Embodiment 2

[0043] Configure absorption solution, its composition and content are: sodium carbonate 1.5g / L, phenol: 0.1g / L, naphthoquinone: 0.25g / L, microbial enzyme: 0.005g / L, vanadium: 0.2g / L, NTA: 0.6 g / L, acetic acid: 0.05g / L, the balance is water, configuration method: simple stirring and mixing at a temperature of 35°C.

[0044] Adopt the same method as Example 1 to carry out desulfurization, the difference is that the feed gas contains 3g / m 3 H 2 S nitrogen, the gas flow rate is 5000L / h. Measure the sulfur content in the purified gas, and the results are as follows: the sulfur content in the purified gas is 25mg / m 3 .

Embodiment 3

[0046] Configure the absorption liquid, its composition and content are: potassium carbonate 1g / L, hydroquinone: 0.5g / L, naphthoquinone: 0.25g / L, microbial enzyme: 0.005g / L, vanadium: 0.4g / L, Diphenylcarbohydrazide: 0.5g / L, ethanol: 0.05g / L, the balance is water, and the preparation method: simple stirring and mixing at a temperature of 50°C.

[0047] Adopt the same method as Example 1 to carry out desulfurization, the difference is that the feed gas contains 300mg / m 3 H 2 S nitrogen, the gas flow rate is 3000L / h. Measure the sulfur content in the purified gas, and the results are as follows: the sulfur content in the purified gas is 2.5mg / m 3 .

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Abstract

The invention relates to an absorption liquid for gas desulfurization and a desulfurization method thereof, solving the problems that catalysts in the prior art have slow regeneration, absorption tower clogging, high degradation speed of desulfurater and the like. Phenol, quinine, microbial enzyme, vanadium and complex preparation serve as catalysts; under the condition of alkaline compounds, gas is led in to quickly oxidize inorganic sulphide and organic sulphide in absorption liquid to be sulphur. The gas desulfurization method of the invention has the advantages of small amount of catalyst, high regeneration efficiency of catalyst, low degradation speed of catalyst, no absorption tower clogging and the like.

Description

technical field [0001] The invention relates to an absorption liquid for gas desulfurization and a desulfurization method thereof, in particular to an absorption liquid and a desulfurization method for air catalytic removal of inorganic sulfur or organic sulfur in industrial raw materials. Background technique [0002] In the field of gas wet desulfurization, the following traditional desulfurization methods are dominant: ammonia water catalytic method, improved ADA method, tannin extraction method, etc. The shortcomings of the existing methods are: first, the catalyst regeneration rate is slow, and second, there are Tower plugging phenomenon, the third is that the catalyst degradation speed is fast, the fourth is that the sulfur capacity is low, the desulfurization of the feed gas of high sulfur gas is not perfect, so the desulfurization efficiency is limited, and the fifth is the side reaction (generation of thiosulfate, sulfite , sulfate), and the desulfurization solution...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B17/05B01D53/14B01D53/52
CPCY02P20/584
Inventor 苏喜太
Owner 苏喜太
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