Do natural gas boilers still use tail gas treatment?
Do natural gas boilers still use tail gas treatment?
Natural gas boilers are a type of thermal energy equipment widely used in heating and industrial fields. They use natural gas as fuel for combustion and provide the required heat energy. This article will provide you with a detailed answer to the question “Do natural gas boilers still use tail gas treatment?”.
The exhaust emissions generated during the combustion process of boilers, including nitrogen oxides and other substances, have a certain impact on the environment. The society’s attention to reducing exhaust emissions is increasing, and environmental requirements are also becoming increasingly strict.
The necessity of exhaust gas treatment:
The tail gas treatment of boilers is an important link in ensuring environmental protection requirements. The relevant regulations and standards have clear requirements for exhaust emissions, and the necessity of exhaust treatment cannot be ignored. By treating exhaust gas, it is possible to effectively reduce the emissions of harmful substances such as nitrogen oxides and protect the atmospheric environment.
Common tail gas treatment technologies:
Common tail gas treatment technologies include SCR (selective catalytic reduction) and SNCR (selective non catalytic reduction). These technologies, through the action of catalysts, convert and reduce harmful substances in exhaust gas, thereby reducing emission concentration.
Natural gas itself: Natural gas is considered a clean energy source because the emissions of air pollutants generated during the combustion process of natural gas are relatively low. Compared to coal combustion, the emissions of harmful substances such as particulate matter, sulfur dioxide, and nitrogen oxides released by natural gas combustion are significantly reduced. This has a positive impact on improving air quality, reducing haze, and addressing health issues. Natural gas, as an efficient energy source, has high thermal efficiency. Natural gas equipment such as natural gas boilers can convert fuel into heat energy with high efficiency, reduce energy waste, and improve energy utilization efficiency. In fact, this is already the answer to whether natural gas boilers still use tail gas treatment.
A low nitrogen burner is a device specifically designed to reduce the formation of nitrogen oxides (NOx) during the combustion process. According to general NOx emission requirements, such as below 80mg/Nm3, low nitrogen burners combined with FGR (combustion exhaust gas recirculation) technology can be used to achieve emission requirements. FGR technology reduces the generation of nitrogen oxides by recirculating a portion of flue gas into the combustion process, reducing combustion temperature and oxygen concentration. This technology can effectively reduce NOx emissions and meet environmental requirements.
For stricter NOx emission requirements, such as below 30mg/Nm3, additional stripping devices are required. The de sales device is usually installed inside the boiler, and its function is to reduce the nitrogen element (N) content in the flue gas, thereby reducing the generation of NOx. This device can further improve the combustion efficiency and environmental performance of natural gas boilers. So, I believe you already know the answer to “Do natural gas boilers still use tail gas treatment?”.