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Desulfurization unit

A desulfurization device and desulfurization tower technology, applied in separation methods, liquid scrubbing gas purification, dispersed particle separation, etc., can solve problems such as environmental impact, generation of sulfur oxides, etc., and achieve the effect of excellent desulfurization ability

Active Publication Date: 2020-05-05
NIPPON STEEL & SUMIKIN ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since coke oven gas contains sulfides, when it is burned, sulfur oxides are produced, which has the potential to affect the environment

Method used

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Embodiment Construction

[0024] Embodiments will be described in detail below with reference to the drawings. In the description, the same reference numerals are assigned to the same elements or elements having the same functions, and repeated descriptions are omitted. figure 1 The shown desulfurization device 1 is a device for removing sulfide in coke oven gas, including a precooling tower 10 , a desulfurization tower 20 and a regeneration tower 30 .

[0025] The precooling tower 10 cools the coke oven gas by bringing the coke oven gas into convective contact with the cooling liquid containing tar in the preceding stage of the desulfurization tower 20 . The desulfurization tower 20 absorbs the sulfide in the coke oven gas into the absorbing liquid by convectively contacting the coke oven gas and the absorbing liquid. The regeneration tower 30 supplies oxygen-containing gas to the absorption liquid discharged from the desulfurization tower 20 to oxidize sulfide, and returns at least a part of the abs...

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Abstract

The utility model provides a desulfurization device. The desulfurization device (1) comprises a desulfurization tower (20) and a regeneration tower (30), wherein sulfides in coke oven gas are absorbed into absorption liquid through convection contact of coke oven gas (G1) and absorption liquid (S2)the regeneration tower is used for supplying oxygen-containing gas into the absorption liquid discharged from the desulfurization tower so as to oxidize the sulfides, so that at least one part of absorption liquid circulates in the desulfurization towerthe desulfurization tower comprises multiple absorption layers (26)each absorption layer has the thickness of 200-1500mm and is used for maintaining the absorption liquid in a temporary mode so as to guide the liquid from top to bottom, and the coke oven gas passes through the absorption layer from bottom to topthe regeneration tower (30) comprises a mixing tank (40) the mixing tank is used for receiving the absorption liquid from the desulfurization tower and receiving the oxygen-containing gas so as to form gas-liquid mixed fluid, so that the gas-liquid mixed fluid ascends while whirling. The desulfurization device provided by the utility model has excellent desulfurization capacity.

Description

technical field [0001] The present disclosure relates to a desulfurization device. Background technique [0002] Coke oven gas generated when carbonizing coal to produce coke can be used as fuel. Since coke oven gas contains sulfides, it generates sulfur oxides when combusted, which may have an impact on the environment. Therefore, before coke oven gas is utilized as fuel, sulfur compounds in coke oven gas are removed. For the removal of sulfides, for example, a desulfurization device such as that shown in CN201880463U is used. In this desulfurization device, the sulfides in the coke oven gas are absorbed into the absorbing liquid by convectively contacting the coke oven gas with the absorbing liquid. Contents of the invention [0003] An object of the present disclosure is to provide a desulfurization device excellent in desulfurization capability. [0004] The desulfurization device of the present disclosure includes: a desulfurization tower that absorbs sulfide in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/18C10K1/08
Inventor 野口明彦山本靖之
Owner NIPPON STEEL & SUMIKIN ENG CO LTD