Desulfurization and denitrification oxidation process of single-stage catalytic reduction absorption method
A technology of oxidation process and absorption method, which is applied in separation methods, chemical instruments and methods, and dispersed particle separation, etc., can solve the problems of increased power generation operation cost, large amount of adsorbent, complicated process flow, etc., and achieves reduction of equipment investment cost, The effect of short chemical reaction time and simple process equipment
Inactive Publication Date: 2010-01-13
杭州蓝海环保工程有限公司
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Problems solved by technology
[0012] Disadvantages: The investment of this method accounts for 12% of the total investment of the power plant, the power consumption accounts for 1% of the total power generation, and the desulfurization operation cost is 1230 yuan / tso 2 , the operating cost of power generation increases by 3 points / kw h, the process flow is complex, the desulfurization efficiency is 80%, the equipment occupies a large area, cannot denitrify, and the equipment resistance is high
[0015] Disadvantage: Desulfurization terminators are piled together with ash, no reuse
[0019] The first method, fuel denitrification technology, has not been successfully developed so far
The second method has not yet reached the stage of full practicality
This method has high denitrification efficiency and can recover NO X , but due to small adsorption capacity, large amount of adsorbent, huge equipment, frequent regeneration, etc., it is not widely used
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[0062] The present invention will be further described below with reference to the examples, but the protection scope of the present invention is not limited thereto. combine figure 1 , the described ammonia reduction absorption method desulfurization and denitrification oxidation process comprises the following steps:
[0063] 1. The industrial waste gas 1 is fully mixed with the remover 3 in the reactor 2 and has a chemical reaction. After passing through the dehydration and demisting device 4, the clean flue gas is discharged through the flue 5, and the generated terminator is collected in the pool 6. And overflow into pool 7.
[0064] 2. The external air enters the reactor 2 tangentially through the pipeline 9, and performs forced oxidation on the substances in the reactor 2.
[0065] 3. The solution in pool 7 is mixed with ammonia water 8 to form a remover 3, and then enters the reactor 2 to react with the waste gas, and the steps of 8.1 are carried out in a cycle.
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The invention relates to a desulfurization and denitrification oxidation process of a single-stage catalytic reduction and absorption method. The method comprises the following steps: carrying out a chemical reaction of industrial waste gases and ammonia water in a reactor while simultaneously carrying out a forceful oxidation reaction in a space to directly generate stable ammonium salt liquid; together adding the collected ammonium salt liquid and the ammonia water to the reactor; and repeating the prior reaction process. The invention can simultaneously remove a plurality of harmful gases, have high removal efficiency, can remove a plurality of harmful substances in smoke, can have remarkable economic benefits by recovering resultant substances, reduce the investment cost of equipment, decrease the size and the floor area of the equipment and have little equipment resistance and very high removal efficiency.
Description
(1) Technical field [0001] The invention relates to an ammonia reduction absorption method for desulfurization, denitrification and oxidation process. (2) Background technology [0002] SO in the atmosphere 2 There are both natural and man-made sources. Anthropogenic sources include fossil fuel combustion and industrial production of sulfur-containing substances. SO 2 Industrial sectors with larger emissions include thermal power plants, steel plants, non-ferrous smelting, chemicals, oil refining, and cement. SO 2 Pollution belongs to low-concentration long-term pollution, which is harmful to humans, animals and plants, and is a chronic and superimposed long-term harm to the ecological environment. [0003] Clean resources are scarce in my country, and coal is the main energy resource, accounting for 75% of the total primary energy consumption. The sulfur dioxide emitted by coal combustion has exceeded 20 million tons for many years, ranking first in the world. my coun...
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Inventor 李湘忠
Owner 杭州蓝海环保工程有限公司