Method and device for selectively removing hydrogen sulfide from gas by utilizing amine droplets

A hydrogen sulfide and selective technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve the problems of not forming large-scale industrial applications, the threat of long-term operation of compressors, and the difficulty of operation.
CN102836631AActive Publication Date: 2012-12-26SHANGHAI HUACHANG ENVIRONMENT PROTECTION
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI HUACHANG ENVIRONMENT PROTECTION
Publication Date
2012-12-26

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Abstract

The invention relates to a method and a device for selectively removing hydrogen sulfide from gas by utilizing amine droplets, and provides the method for selectively removing hydrogen sulfide from gas by utilizing amine droplets. The method comprises the steps of (1) atomizing N-methyldiethanolamine solution into droplets with particle size of not larger than 50 micrometer; (2) uniformly mixing the droplets with hydrogen sulfide-containing mixed gas, and introducing into a micro-swirler; (3) allowing thorough contact and reaction between N-methyldiethanolamine droplets and hydrogen sulfide in the micro-swirler to transfer hydrogen sulfide into the droplets, and meanwhile separating the hydrogen sulfide-absorbed droplets from gas; and (4) enriching the hydrogen sulfide-absorbed droplets, recycling, regenerating, and circulating to the step (2). The invention also provides the device for selectively removing hydrogen sulfide from gas by utilizing amine droplets.
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Description

technical field

[0001] The invention belongs to the field of chemical energy and environmental protection, and relates to a method of using N-methyldiethanolamine solution (MDEA) to atomize micro-droplets, and using a micro-cyclone to selectively remove hydrogen sulfide components in mixed gases. Specifically, the present invention relates to a method for removing hydrogen sulfide components by micro-swirls from mixed gases such as refinery gas and natural gas and separating MDEA droplets by micro-swirls. The invention also relates to a device for atomizing MDEA into droplets and removing hydrogen sulfide and MDEA droplets from the mixed gas. Background technique

[0002] At present, the production of clean fuel, an environment-friendly product in our country, is imminent. And our country H 2 The reserves of gas reservoirs with an average S content greater than 1% account for about 1 / 4 of the national gas reservoir gas reserves, so the removal of H in refinery gas and natu...

Claims

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