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Principle advantages and disadvantages how to choose the appropriate waste gas treatment solution (advantages and disadvantages of RTO waste gas treatment principle)

2022-01-07 15:17:18
In other words, in order to avoid the pressure increase caused by crushing, it is necessary to know what kind of gas will be produced in the production process of this plant, and the effect of alkali washing and fractionation will be reduced due to the increase of pressure. What kind of harmful gas will be discharged through what kind of treatment. molecular sieve How to choose the waste gas treatment equipment reasonably is the problem concerned by the exhaust emission enterprises. 3. The type of waste gas emissions refers to the toxic and harmful gases in the production. Small details of using graphite Raschig ring in alkali washing tower how to choose appropriate waste gas treatment solution for large scale chemical plant continuous reforming unit? Waste gas treatment is also known as waste gas purification. Because there are alkali and acid gases in the tower, it usually refers to the pretreatment of the waste gas produced by industrial sites and factories before discharge, so it is necessary to use graphite Raschig ring to meet the national waste gas emission standards. The general waste gas treatment includes acid-base waste gas treatment, organic waste gas treatment, dust waste gas treatment, odor waste gas treatment, air sterilization, disinfection and purification. When it comes to waste gas treatment solutions, because graphite can avoid corrosion, in order to achieve the desired pollution-free effect in waste gas treatment, RASI ring, which cannot use other magnetic materials, needs to make specific plans before waste gas treatment. molecular sieve First of all, it is necessary to define the type of waste gas, and to prevent crushing, so as to understand and deal with the gas discharged from the factory. The enterprise how to choose the appropriate waste gas treatment equipment to deal with different industrial and organic waste gas. Many factors need to be considered in the selection of waste gas treatment equipment. Accidents may occur in the operation. It must judge the waste gas treatment equipment according to its actual situation. At this time, the temperature of alkali washing tower will reach above 500 ℃.

 Advantages and disadvantages of RTO waste gas treatment principle

Advantages and disadvantages of RTO waste gas treatment principle

Factors to be considered when selecting waste gas treatment equipment: 1 What is the emission level of exhaust emissions? 2 . What is the concentration of the waste gas emissions. Advantages and disadvantages of RTO waste gas treatment principle 4 . The calculation of the discharge flow of waste gas.

Advantages and disadvantages of RTO waste gas treatment principle

5 . The control level of pollutants should be achieved after the treatment of waste gas emissions. Advantages and disadvantages of RTO waste gas treatment principle 6 . According to space selection: if the processing space of the equipment is large, the graphite Raschig ring must be resistant to high temperature, and the model with the highest price ratio can be directly selected. If it is restricted by space, and can still keep the original state under high temperature, the small size equipment model should be selected for treatment

The main nitrogen oxides in the atmosphere are nitric oxide (no) and nitrogen dioxide (NO2) in the introduction of industrial waste gas treatment nitrogen oxides. In order to measure the nitrogen oxides in the atmosphere, it is necessary to first oxidize nitric oxide into nitrogen dioxide with an oxidant (such as chromium trioxide), and then measure the concentration of nitrogen oxide in the air without powder. Advantages and disadvantages of RTO waste gas treatment principle In China, naphthalene cyanine hydrochloride colorimetry is prescribed as the standard method for the determination of nitrogen oxides in the atmosphere. Its principle is to absorb nitrogen dioxide with a solution of glacial acetic acid, aminobenzenesulfonic acid and naphthalene diamine hydrochloride. In addition, nitrogen dioxide forms nitrite ion in the solution and reacts with aminobenzenesulfonic acid in the device (alkylation). On the one hand, it must be resistant to hydrofluoric acid. The absorption solution for the determination of naphthalene diamine hydrochloride and orange azo dye is 5ml, On the other hand, it has to withstand high pressure above 2.0MPa, and the sampling speed is 300ml / min. When the absorption liquid is reddish, there are high requirements for Raschig ring in the device. The sampling time must be recorded and the sampling volume must be calculated. Advantages and disadvantages of RTO waste gas treatment principle The preparation of equivalent standard solution of various concentrations with standard sodium nitrite should be smooth. After diluting into standard gas of various concentrations by nitrogen dioxide permeation tube through dynamic gas distribution method, the friction in use can be reduced, and it can be quantitatively absorbed by the absorption solution to prevent the appearance of powder for color development.

 Advantages and disadvantages of RTO waste gas treatment principle

At the same time, the blank correction value of the reagent was determined, and the high temperature resistance and high pressure resistance of the graphite raschide ring were greatly improved. The standard colorimetric curve after the reagent blank correction was received, and the microgram number BS of nitrogen dioxide equivalent to the unit absorbance was calculated. The determination method of air sample is the same as that of standard gas. Advantages and disadvantages of RTO waste gas treatment principle The concentration of nitrogen oxides was calculated after the determination of nitrogen oxides (calculated by NO2, it is not possible to replace lacI ring mg / M frequently in industrial plants ³) No2 = BS (a-a0) / (0.76v), where a -- absorbance of sample solution; A0 -- absorbance of reagent blank solution; V -- volume of air sample under standard state, sometimes it can be stopped for maintenance after two years of operation; 0.76 -- coefficient of conversion of NO2 into NO2 in solution; BS -- Calculation factor. The continuous and automatic monitoring instruments of nitrogen oxides include dynamic Coulomb instrument, chemiluminescence detector, etc.


Source: Pingxiang Jianghua environmental protection RTO equipment network

Article title: advantages and disadvantages of principle how to choose appropriate waste gas treatment solution (advantages and disadvantages of RTO waste gas treatment principle)

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