Nuclear radiation ammonia method flue gas desulfurization process and equipment

A technology of desulfurization equipment and desulfurization process, applied in the field of nuclear radiation ammonia flue gas desulfurization process and its equipment, can solve the problems of flue gas desulfurization, low denitrification rate, slow speed, low ammonia utilization rate and conversion rate, etc. problems, achieve good industrial use and prospects, improve utilization, and solve the effect of low oxidation efficiency

CN102091513AInactive Publication Date: 2011-06-15上海钒铖环保科技有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2011-06-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a nuclear radiation ammonia method flue gas desulfurization process and equipment. The process comprises the following steps of: carrying out cooling and humidifying and dust-removing treatment on sulfur-containing nitrogen-containing flue gas; sending into a radiating system, enabling O2, H2O and N2 in the flue gas to mutually collide with high-energy electron beams generated by an electron accelerator to generate strong oxidizing property active particles for oxidizing SO2 and nitric oxides to generate sulfuric acid and nitric acid; and sending the flue gas into a desulfurizing tower, enabling the flue gas to be in countercurrent contact with a liquid ammonia-containing circulating solution for absorbing liquid drops, water mist and volatilized ammonia which are carried in the flue gas and also absorbing the sulfuric acid and the nitric acid to generate ammonium sulfate and ammonium nitrate, and discharging purified flue gas from a flue gas outlet. The equipment comprises the radiating system and the desulfurizing tower, wherein the radiating system comprises a radiating reactor and the electron accelerator arranged above a reaction region of the radiating reactor. The removal rates of acidic materials and the nitric oxides in the flue gas are as follows: the removal rate of SO2 is not less than 98 percent, and the removal rate of the nitric oxides is not less than 70 percent. The side products are ammonium sulfate and ammonium nitrate fertilizers, thus the utilization rate of ammonia is improved and the industrial application prospect is better.
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Description

technical field

[0001] The invention relates to the technical field of waste gas treatment technology and equipment, in particular to a nuclear radiation ammonia flue gas desulfurization process and equipment. Background technique

[0002] The flue gas desulfurization process uses alkaline substances to absorb acidic substances in the air, namely sulfur dioxide, and make them into sulfates that are easy to separate.

[0003] Wet flue gas desulfurization is the most important and widely used treatment process for purifying sulfur-containing flue gas, accounting for about 80% of the total treatment. Wet flue gas desulfurization is to use alkaline liquid to wash the sulfur dioxide gas in the flue gas. In recent years, ammonia desulfurization technology has attracted much attention due to its unique technical advantages such as compact structure, high desulfurization efficiency, and resource utilization. It is especially suitable for dust removal and desulfurization of flue gas...

Examples

Embodiment Construction

[0016] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0017] Such as figure 1 As shown, a nuclear radiation ammonia method flue gas desulfurization equipment has a desulfurization tower 1, and a radiation system 2 is arranged in front of the desulfurization tower 1. The radiation system 2 includes a radiation reactor 21 and an electron accelerator 22. The electron accelerator 22 is arranged in the radiation reaction Above the reaction zone of reactor 21, an oxygen feeder 23 is arranged at the front end of radiation reactor 21; two-stage spraying device 3 is installed on the upper part of desulfurization tower 1, and each stage of spraying layer is equipped with circulation pump 4, each The first-stage device inc...