E&M Combusción passes the strict filters of a Chinese environmental project and will be eligible for important contracts in the Asian country

Basque engineering with international success

It reduces emissions well below the 50 mg NOx required at Ji Nan Kuang Shan Heating, with the installation of a LowNox burner and the application of combustion gas recirculation technologies.

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E&M Combustion, a Basque engineering firm specializing in the design and manufacture of combustion equipment and systems for industrial applications, has participated in an environmental project in China, in which it has managed to reduce emissions at the heating plant Jian Kuang Shan Heating Co below the required 50 mg of nitrogen oxide (NOx). In fact, the emissions results show that the values ​​obtained remained below 30 mg of NOx, which opens the door for them to bid on important contracts in the country.

 

The company Ji NanKuang Shan Heating Co It is located in Jinan, in the state of ShandongIt is one of the 14 heating companies operating in the city of Ji NanThe company currently has 5 boilers in operation, with a network of pipes covering 8,5 square kilometers.

 

To overcome this environmental project, E&M Combustion He has worked with a natural gas boiler, in which he has installed a burner Low NOx Designed with a specific nozzle, the system has finally improved forecasts and reduced emissions to below 30 mg NOx. The company has also utilized Combustion Gas Recirculation (CGR) technology, employing a 20% recirculation rate for the exhaust gases in this application.

 

“Although it has a long history, flue gas recirculation technology is proving to be highly effective even today in reducing emissions of NOx, in combination with the burner heads LowNox by E&M Combustion“This is an environmentally sustainable solution that strengthens our commitment to environmental conservation,” declares its CEO, Iñigo Béjar.

 

The boiler has a thermal output of 29 MW, with combustion chamber dimensions of 8,7 meters long, 2,1 meters wide, and 2,6 meters high. One of the biggest challenges the boiler presented was its narrowness. The 2,1-meter width was precisely one of the challenges that had to be addressed. E&M Combustionbecause normally more space is needed for this boiler power in order for the flames not to hit the sides of the fireboxes.

 

 

 

The environmental project in which E&M Combustion has participated is part of the Chinese government's initiative to improve air quality by reducing emissions of some of the main pollutants.

 

 

 

The values ​​ultimately achieved, as shown by the test, were 28 mg/Nm3 @ 3% O2 ​​for an oxygen concentration of 1,5% and approximately 20% recirculation. The CO value also reached was very low, at 3 ppm. Furthermore, the CO value—which represents unburned particles that reduce combustion efficiency—was very low at all points tested.

 

“In the analyses carried out with different recirculation percentages, we observed that the CO value always remained very low and at all times the emissions of NOx “They are below 50 mg/Nm3,” assures Iñigo Béjar. “The guarantees at this plant required that all NOx values ​​be below 50 mg/Nm3, but at the highest points and with recirculations of around 20%, we have achieved results below 30 mg.”

 

The values ​​achieved have been certified by the Chinese certifying body Ji Nan Jin Hang Environmental Testing Technolog and Co., that offers air quality measurement equipment and services in the region.

 

China tackles climate change

 

The environmental project in which he has participated E&M Combustion This is part of the Chinese government's initiative to improve air quality by reducing emissions of some of the main pollutants, sulfur dioxide (SO2) and nitrogen oxides (NOx), by around 3% this year, according to the government work report presented a few days ago by the premier. Li Keqiang.

 

In large public projects, China aims to limit emissions to below 30 mg of NOx per cubic meter and recommends converting certain plants from coal to gas. The success of this operation presents a significant opportunity for E&M Combustion to access these programs, where very few companies possess these technologies. Therefore, they are committed to bidding on projects in this area.