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A flue gas desulfurization absorption process

A flue gas and process technology, applied in the field of flue gas desulfurization absorption process, can solve the problems of desulfurization agent entrainment loss, environmental pollution, low flue gas desulfurization rate, etc., and achieve the effect of solving the plugging of the packing layer

Inactive Publication Date: 2015-10-14
PANGANG GRP PANZHIHUA STEEL & VANADIUM +2
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Problems solved by technology

[0003] The purpose of the present invention is to provide a flue gas desulfurization absorption process, which can solve at least one of the problems such as blockage of the packing layer of the desulfurization absorption tower, low flue gas desulfurization rate, desulfurization agent entrainment loss, and environmental pollution.

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  • A flue gas desulfurization absorption process
  • A flue gas desulfurization absorption process

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Embodiment Construction

[0017] In this specification, the sulfur-containing flue gas to be desulfurized (hereinafter referred to as flue gas) includes at least one of sintering flue gas, metallurgical flue gas, power plant boiler flue gas, etc., wherein the sulfur oxide is mainly sulfur dioxide. In this specification, the desulfurization solution refers to the solution used to remove sulfur oxides in the flue gas. The desulfurization solution that absorbs sulfur oxides in the absorption system is called rich liquid, and the sulfur in the rich liquid is oxidized in the desorption tower. The desulfurization solution obtained after the removal of sulfur oxides and capable of reabsorbing sulfur oxides is called lean solution. Poor solution can be divided into semi-poor solution and lean solution. Semi-poor solution can refer to the desulfurization solution obtained after performing a certain degree of desorption on the rich solution. Poor solution can refer to the desulfurization solution obtained after p...

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Abstract

The present invention provides a flue gas desulfurization absorption process, which includes the following steps: using semi-poor liquid to absorb sulfur oxide contained in flue gas; The sulfur oxides contained in the liquid; use the washing liquid to capture the desulfurization solution in the flue gas that has absorbed the persulfur oxides with the lean liquid, wherein the sulfur oxide content of the semi-lean liquid is higher than that of the lean liquid.

Description

technical field [0001] The invention relates to a flue gas desulfurization absorption process, in particular to a flue gas desulfurization absorption process capable of preventing absorption tower packing blockage, high desulfurization rate and low loss of desulfurization liquid. Background technique [0002] At present, the traditional desulfurization system usually consists of a section of spray packing absorption and a section of flue gas trapping. The sintering flue gas contains relatively high dust and strong acid gas. After being dedusted and pressurized by the booster fan, it is sent to the flue gas washing, cooling and dust removal section. After the washing and cooling solution is demisted, it enters the sulfur dioxide absorption section, and then further Exhaust the smoke after fogging. In the existing desulfurization process, the sintering flue gas contains a lot of dust, which is absorbed by the desulfurization solution, and the accumulation of dust in the packi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/14
Inventor 张初永邱正秋黎建明朱玉萍姚钦国王建山
Owner PANGANG GRP PANZHIHUA STEEL & VANADIUM