What is Cofire?

Co-firing (also referred to as complementary firing or co-combustion) is the combustion of two different fuels in the same combustion system. Fuels can be solid fuels, liquid fuels or gaseous, and its source either fossil or renewable.

What does co combustion and co-firing mean?

Biomass cofiring refers to the concurrent blending and combustion of biomass materials with other fuels such as natural gas and coal within a boiler, which reduce the use of fossil fuels for energy generation and emissions without significantly increasing costs and infrastructure investments.

Why is biomass fuel bad?

“Biomass is far from “clean” – burning biomass creates air pollution that causes a sweeping array of health harms, from asthma attacks to cancer to heart attacks, resulting in emergency room visits, hospitalizations, and premature deaths.”

How does co-firing work?

Co-firing processes Direct co-firing – The biomass and the coal are burned in the same furnace. The mills for the grinding of the fuel and the burners may be separate. This depends on the biomass used and its fuel properties. The gas can be burnt in the same furnace as the coal.

What do you mean by co firing biomass?

What Is Co-firing? Co-firing is the burning of more than one type of fuel simultaneously. Usually, the term is used to describe the combination of coal with another fuel source. The fuel can be mixed with the coal outside the combustor, or the fuels can be added to the combustor separately.

What kind of fuel is used in co-firing?

Co-firing is the use of two different types of fuel for generation of electricity. NTPC plans to burn biomass like scrap lumber, forest debris, crop residues, manure and some types of waste residues along with coal to generate electricity. Biomass can typically provide between 3-15 per cent of the input energy into the power plant.

How is biomass used in coal based power plants?

With coal based generation of 1,96,098 MW, about 100 million tonnes of agro residue can be absorbed in coal-based power plants with 10 per cent co-firing with non-torrefied pellets while reducing their carbon emission.

What does it mean to co-fire with coal?

Co-firing is the burning of more than one type of fuel simultaneously. Usually, the term is used to describe the combination of coal with another fuel source. The fuel can be mixed with the coal outside the combustor, or the fuels can be added to the combustor separately.