Plasma oil-free ignition

Our product is a Microwave Plasma Solid Fuel Ignition System MiPS-SFI.

UkrPlasma’s MiPS-SFI is a plasma coal-burning technology that delivers efficient heating to the power plant boiler and stabilizes coal fuel combustion without the use of natural gas or fuel oil. 

Plasma technology is the most versatile and efficient tool for processing a wide range of energy substances, both fossil and human produced.

Coal dust ignition is possible under conditions of high temperature and long-term temperature. In coal-fired power, this condition is achieved by supplying the coal burner with additional high-energy gas, oil or diesel fuel. The need for additional fuel for coal combustion results in a lower environmental performance of the boiler and a significant additional economic cost. 

In the case of oil-free ignition using plasma technology, the properties of coal dust change. The interaction of plasma with the flow of coal dust causes intense fragmentation of coal particles into smaller components. The reaction capacity of the fuel is increased as a result of the intensive release of volatile components. Thus, the most complete release of volatile components from coal dust is achieved and the coke residue is partially gasified. 

At the plasmotron outlet a combustible mixture is formed, which is comparable to the level of the yield of volatile substances of high-reaction coal, the combustion of which is equivalent to the combustion of high-energy fuels (natural gas, oil, diesel fuel).
The microwave plasmotron can develop the high impact temperature of a plasma of the order of 6,000 K. When coal dust is fed into the plasma torch zone, the cold carbon/air mixture is ignited early and very quickly. As a result, it creates a steady burning process of coal fuel.

Our technology consists in equipping coal dust burners with a plasma heat treatment system. The plasma burner we manufacture was specially designed for the most efficient combustion of the dust fuel. The burner is designed with two or three-stage embodiments, which makes it possible to reallocate fuel flows and adjust the equipment according to the technical parameters of the boiler as well as the coal used. The burner structure makes it possible to achieve the maximum density interaction of the plasma with the fuel flow, thereby increasing the energy efficiency.

The energy required to create the plasma and to maintain the process in the boiler also depends on the quality of the fuel used and the type of boiler and does not exceed 0.15% of the heat capacity of the burner.

The application of a plasma coal-burning system MiPS-SFI to heat the boiler and stabilize the combustion regimes of coal fuel has a high economic impact and rapid payback. Indeed, the conversion to our system does not require significant capital costs, and the technology has low operating costs.

 The high cost-effectiveness of our technology is justified by the fact that additional high-energy fossil fuels (gas, fuel oil or diesel) are completely eliminated from the process and there is no cost for their transportation and storage during the operation of power plant boilers. Additionally, the MiPS-SFI makes it possible to use cheap low-energy high-ash coal and biomass for combustion in power plant boilers.

Finally, the use of the MiPS-SFI reduces the negative impact on the environment. That is achieved by optimizing the coal combustion process and reducing the amount of unburnt solid fuel and soot particles in flue gases.
To completely improve the environmental performance of the plant the plasma coal burning system MiPS-SFI is recommended in conjunction with the Microwave Plasma Refining System MiPRS.