biomass cofiring

biomass cofiring

Biomass cofiring refers to combustion of biomass along with coal in a thermal power plant to reduce the amount of carbon dioxide released. There are 3 types of biomass cofiring: direct combustion, indirect combustion and parallel combustion. The biomass has to be treated before combining with coal in order to improve the boiler efficiency.

The cofiring of biomass with coal has the following environmental benefits:

Cofiring reduces the carbon dioxide emissions which is a major contributor to global warming.

Sulphur content in biomass is low and hence cofiring will reduce the emission of oxides of sulphur like sulphur dioxide that contributes to acid rain.

Some of the tests conducted on biomass cofiring showed a reduction of 30% in oxides of nitrogen.

Cofiring in coal plants would strongly increase biomass use.

Biomass cofiring also reduces the dependency on fossil fuels and thereby increases the share of renewable energy.

Some of the challenges facing the adoption of cofiring include technical challenges in the modification required in the burner, fuel handling and storage systems to accommodate the biomass, limited availability of biomass, loss in boiler efficiency due to high moisture content in the biomass, disposal of ash generated in the process, and the underdeveloped biomass supply market which restricts the widespread use in cofiring.

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Industry/Domain: Natural environment
Category: Climate change
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Related terms

cofiring

Energy; Energy trade

The process of burning natural gas in conjunction with another fuel. Cofiring can reduce sulfur dioxide (SO2) and nitrogen oxide (NOx) emissions, the precursors of acid rain.

cofiring

Energy; Energy efficiency

The use of two or more different fuels (e.g. wood and coal) simultaneously in the same combustion chamber of a power plant.

cofiring

Energy; Coal; Natural gas; Petrol

The process of burning natural gas in conjunction with another fuel to reduce air pollutants.

biomass

Natural environment; Coral reefs

An estimate of the amount of living matter per some unit volume or area.

biomass

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The total weight of living tissue in a community.

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