Gasification

Gasification turns waste into an energy-rich fuel gas by heating the waste under controlled conditions.  

Gasification involves the conversion of waste in a high temperature (between 400C and 800C), low oxygen environment to produce a synthesis gas (a mixture of methane, hydrogen, carbon monoxide and carbon dioxide) and a char residue. 

The synthesis gas can be fed directly into engines to produce electricity, combusted with air to make steam which is then used to produce electricity, or sold as a gas fuel similar to natural gas. 

The gasification process occurs in a gasifier - an enclosed vessel under controlled conditions within a building.

• Reduces greenhouse gas emissions and waste going to landfill
• Produces a marketable product (electricity or a gas fuel similar to natural gas)
• Low risk of water pollution
• Low risk of odours
• High recovery rate of resources
• Minimal risk of health consequences
• Commercially proven technology

• Energy efficiency affected by the ability to use the heat generated by the gasifier for heating/cooling
• Organic waste must be cleaned to remove impurities before gasification
• Recovery and use of the char can be problematic