Carbon fiber static bed flue-gas desulfurization and denitrification technology and device
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A desulfurization, denitrification, and carbon fiber technology, which can be used in combination devices, gas treatment, membrane technology, etc., to solve problems such as ecological damage, acid rain pollution, and carbon consumption, and achieve the effects of stable operation, low corrosion, and long service life.
Inactive Publication Date: 2019-10-29
北京青核环境工程有限公司
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Problems solved by technology
[0002] The discharge of sulfur dioxide and nitrogen oxides has caused serious acid rain pollution and ecological damage
However, due to mechanical wear and tear, a part of carbon needs to be consumed during the reduction of sulfuric acid, so regular replenishment is required.
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Embodiment 1
[0038] Please refer to figure 1 , The embodiment of the present invention provides a carbon fiber fixed bed flue gas desulfurization and denitrification device.
[0039] The carbon fiber fixed bed flue gas desulfurization and denitrification device includes a preprocessor 1, an adsorption reactor 2, a desorption device 3, a reduction device 4 and a SO 2 Adsorption device 5.
[0040] The flue gas enters from the upstream side of the desulfurization and denitrification device.
[0041] The preprocessor 1 is used to pretreat the flue gas, especially to remove most of the particulate matter in the flue gas, so as to improve the service life of the subsequent equipment and prolong the maintenance period of the subsequent equipment.
[0042] Therefore, the preprocessor 1 is a dust collector, preferably any one of an electrostatic precipitator, an electrostatic bag filter or a bag filter.
[0043] Described adsorption reactor 2 comprises at least two groups of switchable carbon fi...
Embodiment 2
[0052] Furthermore, the present invention also provides a carbon fiber fixed bed flue gas desulfurization and denitrification process, which is realized by relying on the carbon fiber fixed bed flue gas desulfurization and denitrification device described in the first embodiment.
[0053] The carbon fiber fixed bed flue gas desulfurization and denitrification process is carried out in the following steps:
[0054] (1) Pretreat the flue gas, which contains SO 2 , NO x ;
[0055] (2) Adsorb the flue gas through the carbon fiber fixed unit, and discharge the flue gas directly after the adsorption is completed;
[0056] (3) Desorption;
[0057] (4) Catalytic reduction of NO x ;
[0058] (5) Absorption of SO 2 .
[0059] Wherein, step (1) is mainly performed by the preprocessor of the device in the first embodiment. Remove the dust in the flue gas, so that the dust content in the flue gas is not more than 0.1g / Nm 3 .
[0060] Excessive dust content is not conducive to the...
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Abstract
The invention discloses a carbon fiber static bed flue-gas desulfurization and denitrification technology. The carbon fiber static bed flue-gas desulfurization and denitrification technology sequentially comprises the following steps that (1) flue gas is pretreated, and the flue gas contains SO2 and NOx; (2) the flue gas is absorbed through a carbon fiber fixed unit, and the flue gas after absorption is directly discharged; (3) desorption is carried out; (4) NOx catalytic reduction is carried out; and (5) SO2 is absorbed. Meanwhile, the invention further discloses a carbon fiber static bed flue-gas desulfurization and denitrification device. The carbon fiber static bed flue-gas desulfurization and denitrification device is used for realizing the carbon fiber static bed flue-gas desulfurization and denitrification technology and is characterized in that the carbon fiber static bed flue-gas desulfurization and denitrification device is sequentially provided with a preprocessor, an absorption reactor, a desorption device, a reduction device and an SO2 absorption device from the upstream side to the downstream side; and the absorption reactor comprises at least two groups of switchablecarbon fiber absorption assemblies which are used alternately, and a flue gas outlet is further formed in the downstream end of the absorption reactor.
Description
technical field [0001] The invention relates to the field of environmental protection, in particular to a carbon fiber fixed bed flue gas desulfurization and denitrification process and equipment. Background technique [0002] The discharge of sulfur dioxide and nitrogen oxides has caused serious acid rain pollution and ecological damage. my country is a country rich in coal resources, and it is also the largest coal producer and consumer in the world; the main form of coal utilization is direct combustion, which occupies more than 80% of the total coal, and a large amount of coal combustion produces a large amount of pollutants such as sulfur dioxide , its sulfur dioxide emissions rank first in the world, causing huge losses to the national economy and people's property, and also caused a large loss of sulfur resources in my country. Therefore, reducing and controlling pollution and preventing and controlling sulfur emissions during coal combustion are the needs of global s...
Claims
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Application Information
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