Ozone Decompositon Catalyst

With strong oxidizing power, Ozone(O3) is widely used for deodorization, sterilization of air, the degradation of aromatic organics, especially the disinfection of medical equipment. However, a small amount of ozone (0.1 to 1 ppm) can cause dizziness, eye discomfort, and sore throat symptoms, the World Health Organization has formulated a safety standard for O3: the maximum allowable concentration in an 8-hour working environment should be less than 0.016 ppm. The remaining O3 discharged into the air during the process will cause environmental pollution.

The high-efficiency ozone decomposition catalyst developed by CAS Kerry can decompose high-concentration ozone into oxygen at room temperature, and the maximum treatment concentration can reach 90mg/L. It can be applied to the atomic cabin, radio, supersonic passenger cabin, copier, household appliances and other aspects or occasions, especially suitable for the treatment of ultra-high concentration ozone exhaust of medical equipment. Because it doesn't contain activated carbon, it is safer when decomposing high concentrations of ozone.

 

 

CAS-CR-CD *OZ-P (F) type ozone decomposition catalyst was made with honeycomb ceramics as carrier and high active component formula. Widely used in household appliances, photocopying, printing, fine chemical synthesis and tap water, wastewater treatment and other ozone source areas of ozone tail gas purification treatment, can quickly decompose ozone to generate environmentally friendly oxygen, to achieve the purpose of ozone decomposition and purification, wastewater treatment.ozone source areas of ozone tail gas purification treatment, It can quickly decompose ozone to generate harmless and environmentally-friendly oxygen and achieve the purpose of ozone decomposition and purification

 

 

NO.	Test item	skill target
		Carrier types and specifications: Honeycomb ceramic carrier:100 x 100 x50 Active carbon carrier: 100 x 100 x50 Alumina honeycomb carrier: 120 x120 x100 High concentration oxide particles Active carbon pellets
1	Airspeed, ozone treatment capacity	＞10000h-1,3~5gO3/g (catalyst)
2	Using temperature	20°C-100°C
3	The highest humidity	90%RH
4	Bulk density	0.72±0.05g/mL
5	Cordierite type compressive strength	≥14 MPa(Front),≥4 MPa(Side)
6	Coating load	＞10.0%
7	Supported metal oxides	＞8.0%
8	Expulsion rate	＜2%
9	Appearance	Black
10	Packing	Moisture seal

 

CAS-KR-CD*OZ-P (F) ozone decomposition catalyst product pictures.

 

 

 

Ozone (O₃) is an allotrope of oxygen, it is a kind light blue gas of distinctive smell, ozone is a strong oxidizing agent, its oxidation reduction potential to 2.07V in the water ,second only to fluorine (2.5V), its oxidation capacity is higher than that of chlorine (1.36V) and chlorine dioxide (1.5V),it can destroy and degrade the cell wall of the bacteria, quickly spread into the cell, oxidize and decompose the glucose oxidase and so on which are necessary for the oxidation of glucose inside the bacteria, It can also interact directly with bacteria and viruses, destroy cells, ribonucleic acid (RNA), decompose deoxyribonucleic acid (DNA), RNA, proteins, lipids and polysaccharides and other macromolecular polymers, so that the metabolism and reproduction process of bacteria are destroyed,it can be seen that high ozone concentration has a great impact on the environment and human health, and the fishy smell of high ozone also makes people unbearable.

Normally dry air or dry oxygen will produce ozone through the discharge ,such as a large number of photocopiers, printing presses, fax machines and other machines, as well as the use of vacuum cleaners, air cleaners, produce ozone through the corona discharge, in addition, in the field of ozone sterilization, high concentration of ozone will remain after sterilization.

The Ozone decomposition catalyst can accelerate the rapid decomposition of ozone into oxygen, thereby reducing the harm of ozone.

Ozone decomposition process

 

Process Description: the ozone-containing waste gas is dehumidified by a dryer (with molecular sieve, silica gel and other desiccant placed in it) and then enters the catalytic reactor in which placed ozone decompositon catalyst, then the catalytic reactor is emptied after catalytic treatment and clearing, Simple detection conditions: if the second bottle of starch potassium iodide solution does not change color, then ozone is completely purified.

 

 

Technical features:

①strong ability of decomposition;

②the humidity resistance performance is strong, can react in conditions of high humidity relative humidity of 90%;

③low ozone concentration after decomposition.

Using CAS-KR-CD*OZ-P (F) ozone decomposition catalyst, the ozone can be rapidly decomposed, the application temperature is only room temperature (of course, the higher the temperature is, the faster the decomposition will be);catalyst O₃ removal ability > 3000mg O₃ waste gas /g catalyst; ozone decomposition efficiency: > 95%;Operating airspeed: > 10000H-1;the concentration of ozone after catalyst decomposition is less than 0.10 PPM.

 

 

1) When the ozone decomposition catalyst is installed in the reactor (or purifier) for use, The ratio of the height of the catalyst bed to the inner diameter of the container(ratio of height to diameter)should be greater than or equal to 4:1.

2) It is best to place a certain amount (the same amount or 2 times the amount) of desiccant in front of the catalyst bed, such as activated alumina, silica gel, molecular sieve, to protect the ozone decomposition catalyst.

3) After the catalyst has been used for a certain period of time (for example, about 1 year), if the activity of the catalyst was found to decreases significantly, the catalyst and desiccant can be taken out and put in the oven to dry at 110°C for 10 hours, then it can be put into the purifier again for use.

4)For some industrial applications (such as water, tap water purifying exhaust),the ozone decomposition catalyst bed layer temperature can be increased to 50 ~ 120 °C, and the Service life will be more long.

5) When the air humidity is too high, a constant temperature heating clearing damp device can be set in the catalyst filler.

6)In use, if it is found that the effect of the catalyst decreases significantly in a short time, it may be caused by the poisoning of the catalyst caused by the partial oxidation of nitrogen to NO2 caused by the severe dampness of the catalyst or the excessive concentration of ozone. the catalyst can be ventilated in a stainless steel or ceramic container and heated to 240°C for more than 20 minutes to remove moisture and NO2.

 

 

 

 

 

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