本项目的非甲烷总烃废气，是典型的低浓度、大风量型的有机废气。对低浓度、

The non-methane total hydrocarbon waste gas of this project is a typical organic waste gas with low concentration and large air volume. For the treatment of low-concentration, high-air volume organic waste gas, the most effective methods at present are direct combustion and catalytic combustion. However, in this project, it belongs to low-concentration, high-volume organic waste gas, and the direct incineration method is used, and the investment and operation costs are extremely high, so the most economical and applicable method adopts the catalytic combustion process. The principle of the catalytic combustion process is to use the porosity and large specific surface area of ​​the adsorbent material. When the organic waste gas passes through the adsorbent material, the organic matter in the gas is adsorbed by the adsorbent material and trapped, the gas is purified, and the purified gas is emptied. After the adsorption material has been adsorbed for a certain period of time, hot air can be used to desorb the organic substances trapped on the surface of the adsorption material. The hot air used for desorption is a small flow of gas. At this time, the concentration of organic matter in the desorbed hot air is 10-15 times that of the adsorbed gas, and the hot air after desorption can be directly sent to the combustion device for combustion treatment, and at the same time, the heat of combustion can be used to improve the desorption gas. The temperature of the adsorbent is desorbed, and the desorbed adsorbent can be re-used for adsorption after cooling. The concentrated high-concentration gas can be connected to combustion equipment for oxidative decomposition treatment, which can greatly save equipment investment and system operating costs.

The non methane total hydrocarbon waste gas of the project is a typical organic waste gas with low concentration and large air volume. At present, direct combustion and catalytic combustion are the most effective methods for the treatment of low concentration and large air volume organic waste gas. However, in this project, it belongs to low concentration and large air volume organic waste gas, and the direct incineration method is adopted, which has great investment and operation cost. Therefore, the most economical and applicable method is catalytic combustion process. The principle of catalytic combustion process is to use the characteristics of porous and large specific surface area of adsorption materials. When organic waste gas passes through the adsorption materials, the organic substances in the gas are adsorbed and retained by the adsorption materials, the gas is purified, and the purified gas is evacuated. After the adsorption material is adsorbed for a certain time, the organic matter trapped on the surface of the adsorption material can be desorbed by hot air, which is a small flow of gas. At this time, the concentration of organic matter in the desorbed hot air is 10 ~ 15 times that in the adsorbed gas. The desorbed hot air can be directly sent to the combustion device for combustion treatment. At the same time, the combustion heat can be used to increase the temperature of the desorbed gas and desorb the adsorbed material. After cooling, the desorbed adsorbed material can be put into adsorption again. The concentrated high concentration gas can be connected to the combustion equipment for oxidative decomposition treatment, which can greatly save the investment of equipment and the operation cost of the system.

The non-methane total hydrocarbon waste gas of this project is a typical organic waste gas with low concentration and large air volume. At present, the most effective methods to treat organic waste gas with low concentration and large air volume are direct combustion and catalytic combustion. However, in this project, the organic waste gas with low concentration and large air volume is directly incinerated, and the investment and operation cost are extremely high, so the most economical and applicable way is to adopt catalytic combustion process. The principle of catalytic combustion technology is to utilize the characteristics of porous and large specific surface area of adsorption materials. When organic waste gas passes through the adsorption materials, the organic substances in the gas are adsorbed by the adsorption materials and trapped, and the gas is purified, and the purified gas is emptied. After the adsorption material has been adsorbed for a certain time, the organic substances trapped on the surface of the adsorption material can be desorbed by hot air, which is a small flow of gas. At this time, the concentration of organic matter in the desorbed hot air is 10-15 times that of the adsorbed gas, and the desorbed hot air can be directly sent to the combustion device for combustion treatment. At the same time, the temperature of the desorbed gas can be raised by using the combustion heat release to desorb the adsorbed material, and the desorbed adsorbed material can be put into adsorption again after cooling. The concentrated high-concentration gas can be connected to the combustion equipment for oxidative decomposition, which can greatly save the equipment investment and the operating cost of the system.