Alternative Energy

Term: Gasification

Gasification

• Gasification is a process that converts carbonaceous materials into a gas mixture called synthesis gas or Syngas and is itself a fuel.

• Gasification is a method for extracting energy from many different types of organic materials

Gasification

• Made from any Biomass or carbon source

• Carbon material CO & H (syngas)

• Syngas may be burned directly in internal combustion engines

• Syngas can be used to produce methanol and hydrogen, or converted into synthetic fuel.

Steam

Gasification vs Combustion

• Combustion oxidizes materials in the presence of O2 to produce heat, H20 and CO2

• Gasification restricts O2 and produces CO and H2. Gasification operates at high temperatures & pressure (2,600°F & 1000psi)

• The gas is then burnt to produce energy and maintain the temperature of the reaction

Coal Gasification

• Widely used to create electricity

• Clean air act and emission restrictions are ending most burning of coal for electricity so now it is gasified

Wood Gasification

• Old technology replaced by cheap oil

• Seeing a resurgence

Byproducts

• Slag

• Ash

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• http://www.almostfreefuel.com/gasification.html