Ozone is a strong oxidizing gas, which is widely used in water treatment, flue gas denitrification and other fields. Ozone is lively in nature and difficult to store and transport, so ozone is generally produced on site by an ozone generator. China's ozone generator market size of more than 5 billion yuan, of which water treatment applications accounted for about 55%, flue gas denitrification applications accounted for about 9%, medical and health and food industries and other fields accounted for about 36%. Ozone preparation is based on oxygen as raw material, the utilization rate of raw material oxygen is only 8-10wt%, which means that more than 90wt% of oxygen is not converted into ozone, but exists in the product gas in the form of carrier gas, resulting in the cost of oxygen accounting for more than 55% of the cost of ozone production. How to improve the utilization rate of oxygen is the key to saving energy and reducing the cost of ozone. The self-developed "ozone adsorbent" and supporting process equipment can recover the oxygen that is not involved in the conversion and return it to the inlet of the ozone generator again. By recycling the oxygen, the oxygen consumption in the ozone production process can be reduced, thereby improving the utilization rate of oxygen and achieving the purpose of saving energy and reducing the cost of ozone.
Technical features
Oxygen reuse rate ≥ 85%
Under the premise of constant ozone production, after using ozone energy-saving equipment, the consumption of oxygen is only 25% of the previous, the cost of oxygen is reduced from 55% to 24%, and the use time of the same volume of liquid oxygen reserve is 4 times that of the previous.
Ozone loss rate ≤ 5%
The ozone concentration at the outlet of the ozone generator is 90-140mg/L. After using the ozone energy-saving equipment, the ozone concentration is stable at 85-135mg/L, and the total amount of ozone produced per unit time is almost unchanged, ensuring the basic requirements for ozone concentration in water and flue gas treatment.
Low energy consumption and province of land
Taking ozone energy-saving equipment equipped with 20kg oxygen source ozone generator as an example, the operating power is less than 50kW, the floor area is less than 60 ㎡, the container skid is convenient to transport and place, and can be placed outdoors without occupying a factory building.
Simple operation, automatic adjustment
The ozone energy-saving equipment is equipped with an automatic adjustment and remote transmission system. After commissioning and start-up, the system will correct the operating parameters of the equipment in real time according to the ozone concentration and raw gas conditions and upload the data to the cloud for storage to ensure the efficient operation of the equipment.
Application areas
Ozone water treatment
Ozone has the ability to disinfect and sterilize and decompose organic matters due to its strong oxidation. Ozone is often used as a disinfectant in water supply plants. Ozone not only has fast sterilization speed and strong ability, but also can avoid harmful by-products brought about by chlorine disinfection. In sewage treatment plants, ozone is mostly used in advanced treatment units to degrade difficult-to-biodegrade organic matters in sewage and improve effluent quality. The oxygen recovered by the ozone energy-saving equipment can be returned to the inlet of the ozone generator for recycling, and can be fed into the aeration tank for oxygen aeration of microorganisms, so as to improve the efficiency of water treatment and reduce the cost of water treatment.
Ozone flue gas denitration
Ozone, as a clean and strong oxidant, can quickly oxidize NO and Hg produced in flue gas to high-priced NO/N O and Hg. Gas phase oxidation combined with other methods can effectively remove SO, NO and Hg from flue gas. Ozone denitrification has the advantages of high efficiency, small footprint and low investment, but due to the high preparation cost of ozone, the cost of ozone denitrification is increased, which limits the popularization and application of ozone denitrification technology. The use of ozone energy-saving equipment can improve the competitiveness of ozone denitrification in the market by reducing the cost of ozone preparation.
