1. Product Introduction of Special activated carbon for air purification in deep and long tunnels
This product is 9mm diameter activated carbon with high adsorption value.
2. Product features of Special activated carbon for air purification in deep and long tunnels
It can quickly and effectively adsorb particulate matter, nitric oxide and nitrogen dioxide, and the adsorption rate of nitrogen oxide is 70% and that of sulfur dioxide is 40%.
3. Product Usage of Special activated carbon for air purification in deep and long tunnels
With the rapid development of China's highway transportation and the increasing demand for roads, the unprecedented road construction has led to a substantial increase in the number and length of highway tunnels. At the end of 2019, there were 19,067 highway tunnels in China. As a relatively closed artificial space, a large number of motor vehicles will produce particulate matter and emit nitric oxide and nitrogen dioxide in a concentrated way. If these harmful substances are not treated quickly and effectively in a relatively closed space, they can cause chromosomal mutation of human lymphocytes, damage the lungs, liver and kidney function, and. Since 1998, our company has been working with Japanese activated carbon experts to develop special activated carbon for air purification in deep tunnels, and in 2000, it began to be mass-produced and exported to Japan. Because it is a high adsorption value activated carbon with a diameter of 9mm, it can quickly and effectively adsorb and treat particulate matter, nitric oxide and nitrogen dioxide. After testing, the adsorption rate of nitrogen oxides is 70%, and the adsorption rate of sulfur dioxide is 40%, thus greatly reducing the harm to human body and the environment caused by the tail gas emitted by motor vehicles in tunnels and the particulate matter formed during driving.
4. Quality and technical index of Special activated carbon for air purification in deep and long tunnels
|
Particle size (mm) |
Iodine adsorption value (mg/g) |
Nitrogen oxide adsorption rate (%) |
Ash (%) |
Abrasion resistance (%) |
Sulfur dioxide adsorption rate (%) |
Packing density (g/l) |
Moisture (%) |
|
9mm diameter coal columnar activated carbon |
>900 |
>70 |
<12 |
>90 |
>40 |
480-530 |
<3 |
