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Device and method for removing organic sulfur in yellow phosphorus tail gas

A technology for yellow phosphorus tail gas and organic sulfur, applied in separation methods, chemical instruments and methods, separation of dispersed particles, etc., can solve problems such as no effective methods, achieve the effect of reducing implementation costs, reducing processing costs, and facilitating follow-up processing

Active Publication Date: 2018-10-30
CHENGDU DEMEI ENG TECH
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Problems solved by technology

However, there is no effective method for the removal of carbon dioxide and carbon disulfide so far.

Method used

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  • Device and method for removing organic sulfur in yellow phosphorus tail gas

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] Such as figure 1 As shown, the device for removing organic sulfur in the yellow phosphorus tail gas of the present invention includes an oil washing tower 1, a regeneration tower 2 and a lean oil storage tank 3, and the oil washing tower 1 is provided with a tail gas inlet 11, a lean oil inlet 12, Tail gas outlet 13 and oil-rich outlet 14. The regeneration tower 2 is provided with a rich-oil inlet 21, a lean-oil outlet 22 and an organic sulfur outlet 23. The lean-oil inlet 12 communicates with the lean-oil storage tank 3 through pipelines. The oil outlet 14 communicates with the rich oil inlet 21 through a pipeline, and the lean oil outlet 22 communicates with the lean oil storage tank 3 through a pipeline.

[0032] The oil scrubber 1 can adopt a general absorption tower. In order to make the yellow phosphorus tail gas fully contact with the was...

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Abstract

The invention relates to the technical field of tail gas treatment and provides a device for removing organic sulfur in yellow phosphorous tail gas. The device comprises an oil washing tower, a regenerating tower and a lean oil storage tank, the oil washing tower is provided with a tail gas inlet, a lean oil inlet, a tail gas outlet and a rich oil outlet, the regenerating tower is provided with a rich oil inlet, a lean oil outlet and an organic sulfur outlet, the lean oil inlet is communicated with the lean oil storage tank, the rich oil outlet is communicated with the rich oil inlet, and the lean oil outlet is communicated with the lean oil storage tank. The device is simple in structure, low in cost and high in removing rate. The invention further provides a method for removing the organic sulfur in the yellow phosphorous tail gas. The method includes: A, utilizing heavy aromatic solvent to absorb the organic sulfur in the yellow phosphorous tail gas to obtain yellow phosphorous tail gas a and a mixed solution b; B, flash-separating the organic sulfur in the mixed solution B to obtain organic sulfur and heavy aromatic solvent; C, using the heavy aromatic solvent, obtained in step B, in step A; D, repeating step B and step C. By the method, the heavy aromatic solvent is utilized repeatedly, so that cost is lowered; only physical property of the organic sulfur is utilized, so that generation of new impurities is avoided.

Description

technical field [0001] The invention relates to the technical field of tail gas treatment, in particular to a device and method for removing organic sulfur in yellow phosphorus tail gas. Background technique [0002] Yellow phosphorus is a yellow waxy solid, soft, insoluble in water, slightly soluble in alcohol, soluble in liquid alkali, benzene, ether, chloroform, toluene, and easily soluble in carbon disulfide; it is an important basic industrial raw material, mainly used In many fields such as chemical industry and pesticide. [0003] At present, the production of yellow phosphorus all adopts the high-temperature reduction method. The raw materials are phosphate rock, silica and coke. Phosphorus is reduced to elemental phosphorus vapor, and then the product is obtained after cooling and rinsing. The high-temperature slag is directly discharged from the electric furnace, and the gas discharged during the production process is yellow phosphorus tail gas. [0004] The yell...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/18B01D53/14
Inventor 郭克雄郭毛晓春黄云霞黄飞
Owner CHENGDU DEMEI ENG TECH
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