Can nitrogen atomization be used in water-coal slurry boilers?

Do you mean a relatively large boiler? How is the air volume satisfied? Nitrogen must also have an effect on combustion!

Using nitrogen will have an impact on combustion, right? The boiler’s output will be affected, too

Nitrogen has an effect on combustion. Nitrogen reacts with oxygen to produce nitrogen oxides, which pollute the environment and increase pollutant emissions; at the same time, this process absorbs a large amount of heat.

What is your gas-liquid ratio? Pressure? Dosage? What is the diameter of the aerosol particles in Sotal? Particle size distribution index? Furnace temperature?

It’s not good; it reduces combustion efficiency and increases the production of NO

It’s really a very rare issue. Since the amount of misting medium is small compared to the total volume of flue gas, I don’t think there should be any problems with combustion. As for whether more nitrogen oxides will be generated, I haven’t done any research on that; it seems that the formation of nitrogen oxides is related to the combustion temperature. I’m curious – where do you get so much nitrogen? Doesn’t producing nitrogen cost anything?

Answering the question from above: Our company uses a device that injects air to react with the oxygen present, so the exhaust gas produced is basically nitrogen, which means the costs are very low!

As for nitrogen oxides, there shouldn’t be much of them either; after all, there isn’t much misting gas, and it’s the nitrogen in the air that’s introduced in large quantities! Our company’s boiler is not large; it’s a small unit with a capacity of 150 Te/H. I personally think it has an impact on combustion, but not much.

May I ask, in this device that introduces air to react with oxygen, is it the oxygen that is absorbed, or is it the water produced by the combustion of H2 that gets condensed? Otherwise, how could the exhaust gases produced be essentially nitrogen? If it’s combustion, isn’t it CO2?

As for nitrogen oxides, there shouldn’t be much of them either; after all, there isn’t much misting gas, and it’s the nitrogen in the air that’s introduced in large quantities! Our company’s boiler is not large; it’s a small unit with a capacity of 150 Te/H. I personally think it has an impact on combustion, but not much. ~~~~~~~~~~~~~~~~~ The formation of nitrogen oxides mainly comes from fuel N; thermally-induced and rapidly formed NOx account for a very small proportion, that is, the share of nitrogen oxides generated by the oxidation of N2 is minimal. Moreover, N2 brought in by the air is also inevitable. Actually, your idea is quite good – using nitrogen instead of steam, provided that the cost of nitrogen is lower than that of steam. From an energy perspective, heating nitrogen in the furnace until it exits at the flue gas temperature results in losses, but water vapor also exits the furnace at the flue gas temperature, aside from any possible vaporization reactions. Generating water vapor also incurs costs.

The original poster has quite extensive knowledge; nitrogen, in large quantities, definitely provides flame retardancy.