Method for ethylene glycol removing SOx (X=2 or 3) in flue gas

A technology of ethylene glycol and flue gas, applied in separation methods, chemical instruments and methods, separation of dispersed particles, etc., to achieve high purification, wide application value, and low operating costs

Active Publication Date: 2007-10-17
PEKING UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these technologies mentioned above are only used in the field of desulfurization of industrial feed gas on a large scale at present to remove hydrogen sulfide, carbo...

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  • Method for ethylene glycol removing SOx (X=2 or 3) in flue gas
  • Method for ethylene glycol removing SOx (X=2 or 3) in flue gas
  • Method for ethylene glycol removing SOx (X=2 or 3) in flue gas

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Embodiment Construction

[0068] The ethylene glycol desulfurization method of the present invention will be described below in conjunction with specific embodiments. The embodiments described are for better illustration of the present invention and should not be construed as limiting the claims of the present invention.

[0069] The first process is the desulfurization absorption process, and its implementation is shown in Figure 1, wherein, (1) desulfurization tower, (2) SOx-containing gas, (3) purified gas, (4) desulfurization lean liquid, (5) desulfurization rich liquid.

[0070] Referring to Fig. 1, the SOx-containing gas (2) enters from the bottom of the desulfurization tower (1), and contacts with the desulfurization lean liquid (4) countercurrently; the SOx in the SOx-containing gas (2) is absorbed by the lean liquid (4), and the SOx-containing gas ( 2) converted into purified gas (3) from the top of the desulfurization tower (1); the desulfurized poor liquid (4) that has absorbed SOx is trans...

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Abstract

A method shortened form glycol desulfurizing method for desulfurizing Sox (x=2 and/or 3) in the gas using a solution of which the main constituent is glycol which is glycol solution for short. The main constituent of glycol solution in the invention is glycol. The method of glycol desulfurization in the invention, firstly, absorbs SOx (containing: SO2 and/or SO3) in the gas using glycol solution, and then the glycol solution after absorbing Sox is generated by one or several methods in heating method, vacuum method, ultrasonic method, microwave method and radiation method. SO2 and SO3 byproduct is exhausted out, and the glycol solution after regenerated is cyclic utilized.

Description

technical field [0001] The present invention relates to the purification method for removing SOx in flue gas, waste gas containing SOx and / or industrial raw material gas, i.e. removing SOx in flue gas, waste gas containing SOx and / or industrial raw material gas (x=2 and / or the method of 3). Background technique [0002] Due to the rapid development of industry, the consumption and emission of flue gas, sulfur-containing industrial raw material gas and other waste gases are increasing day by day. The discharge of sulfur-containing exhaust gas has caused serious environmental pollution, such as the formation of acid rain, acidification and corrosion of buildings, respiratory diseases and skin diseases, etc., which directly endanger human health. Over the years, scientific and technological workers from all over the world have conducted more research on flue gas, sulfur-containing industrial raw material gas and other waste gas desulfurization technolog...

Claims

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Application Information

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IPC IPC(8): B01D53/50B01D53/78
Inventor 魏雄辉张建斌张鹏燕张凌伟李祥斌万明金
Owner PEKING UNIV
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