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Method and device for regenerating washing agent

A detergent and gas scrubbing technology, applied in separation methods, chemical instruments and methods, liquid scrubbing gas purification, etc., can solve problems such as unfavorable operating costs of gas purification, reduce equipment downtime, prevent moving, and improve economical efficiency. Effect

Inactive Publication Date: 2009-05-27
LINDE AG
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AI Technical Summary

Problems solved by technology

To achieve a high degree of purification of metal carbonyls, this method requires intense heating of the loaded scrubber, which has an adverse effect on the operating costs of the gas purification

Method used

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  • Method and device for regenerating washing agent

Examples

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Embodiment Construction

[0024] This example relates to synthesis gas scrubbing in which low temperature methanol is used as a physically acting scrubber. The syngas to be cleaned originates from a gasification unit (not shown) in which a charge (e.g. carbon and / or heavy oil) containing carbon, sulfur and heavy metals (e.g. nickel and / or iron) is transform. Metal carbonyls arising from heavy metals during the gasification of the charge travel with the raw synthesis gas to the synthesis gas scrubber and are scrubbed there.

[0025]Synthetic raw gas scrubbing is carried out in the scrubber W. From the liquid phase pool of the scrubber W, the methanol scrubber loaded with metal carbonyl compounds and sulfur components and carbon monoxide is drawn through the pipeline 1 at a pressure of about 60 bar, and the heat is introduced. in exchanger E2 and heated there to about 70°C. The heated methanol scrubber laden with metal carbonyls is conveyed through line 2 to throttling mechanism a, through which it is ...

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Abstract

The invention relates to a method and device for regenerating a washing agent which is loaded with, physically gas washed, metal carbonyls, sulphur component and carbon monoxide (CO), it is characterized in that the washing agent (4) loaded with metal carbonyls is heated under a first pressure (Druck1) higher than the evaporating pressure thereof to a first temperature (Temp1) (E1), then the metal carbonyls are separated from a separation device (B) within a shortest residence time, and extracted from the loaded washing agent; furthermore, the washing agent (1) loaded with metal carbonyls is heated under a second pressure (Druck2) higher than the first pressure (Druck1) to a second temperature (Temp2) (E2), before the temperature rises to the first temperature (Temp1) (E1), then is relaxed (a), therefore the metal carbonyls can be stably dissolved before relaxing (a).

Description

technical field [0001] The present invention relates to a method for regenerating scrubbing agents loaded with metal carbonyl compounds, sulfur components and carbon monoxide (CO) from physical gas scrubbing, wherein the metal carbonyl compounds are obtained by placing the scrubbing agent loaded with metal carbonyl compounds in Heating to a first temperature (Temp1) at a first pressure (Druck1) above the evaporation pressure of the detergent and settling in the separation device with a minimum residence time and separating from the loaded detergent. [0002] Furthermore, the invention relates to a device for carrying out the method according to the invention. Background technique [0003] Physical gas scrubbing takes full advantage of the property of liquids to absorb gaseous substances and keep them dissolved without combining with gases. How well a gas is absorbed into a liquid is best expressed in terms of the solubility coefficient: the better a gas dissolves in a liqui...

Claims

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Application Information

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IPC IPC(8): C10K1/16B01D53/14
CPCB01D2256/20C10K1/16B01D2257/30C10K1/08B01D53/1425
Inventor U·凯赖斯泰乔格鲁
Owner LINDE AG
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