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What is the effective ratio of air flow for catalytic combustion equipment?
2021-10-31
Do you know how effective the catalytic combustion equipment is when the air volume ratio is? The following is the content organized by Tangshan Lantian Aoyu Technology Co., Ltd. for you
Research has shown that the range of "gas to air ratio" in catalytic combustion equipment is generally 4% -11%. Under corresponding combustion conditions, when the gas to air ratio is 6%, natural gas can achieve good catalytic combustion effect. This way, the combustion system can not only achieve good catalytic combustion effect, but also achieve good combustion effect. Obtain thermal efficiency, and. It can also achieve good emission effects. The air ratio of the system is regulated by a zero pressure valve. Therefore, when the air volume of the fan changes, the combustion/air ratio can also change, thereby achieving the combustion of the catalytic combustion device. Especially during the startup process, as long as the output frequency of the frequency converter is adjusted, the fuel/air ratio of catalytic combustion can be changed within the required ignition flame combustion time. RCO regenerative catalytic combustion process features: 1. RCO process is used to purify organic waste gas and can simultaneously remove multiple organic pollutants. It has the advantages of simple process flow, compact equipment, and reliable operation; 2. RCO purification efficiency is high, generally above 99%; 3. RCO has the advantage of low operating costs, and its heat recovery efficiency can generally reach over 90%. The equipment for catalytic combustion is a catalytic combustion furnace, which mainly includes preheating and combustion. In the preheating part, in addition to the heating equipment, the preheating area of corresponding length shall be maintained to ensure uniform gas temperature distribution, and ensure that the flame does not contact the catalyst when fuel combustion heats the intake gas. To avoid heat loss, the preheating section should be well insulated. In the catalytic reaction section, in order to facilitate the loading and unloading of the catalyst, it is customary to divide it into basket like or drawer like components. The domestic organic waste gas treatment mainly adopts domestically developed catalytic combustion devices, which have become one of the main technologies for VOCs (volatile organic compounds) treatment in China. Due to its simple process and low operating cost, it is widely used for the treatment of low concentration and high air volume organic waste gases. On this basis, an integrated device for particle activated carbon adsorption concentration catalytic combustion and an integrated device for activated carbon fiber adsorption concentration catalytic combustion have been developed. During this period, regenerative combustion technologies (RTO, RCO) were widely applied mainly through introduction and absorption, as well as through technological improvements and improvements. At present, absorption purification technology has been applied to the purification of some inorganic waste gases, and some attempts have been made in the purification of organic waste gases. Biological purification technology also shows good application prospects in fields such as deodorization. From the chemical reaction equation, catalytic combustion and chemical combustion processes are similar, but due to the relatively low VOC concentration, no visible flames will appear in the chemical reaction. The general oxidation method can ensure the smooth progress of the oxidation reaction through two methods: a) heating. Bring the organic waste gas containing VOC to the reaction temperature; b) Use catalysts. If the temperature is low, the oxidation reaction can take place on the surface of the catalyst. If you are not satisfied with the sewage discharge of the enterprise, you can refer to several practical waste gas treatment equipment and processes. The final choice also requires technical personnel to investigate the current situation in factories and workshops, and analyze the sources based on industrial processes and production processes
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