Gasification is a process that converts organic or fossil-based carbonaceous materials at high temperatures (>700°C), without combustion, with a controlled amount of oxygen and/or steam into carbon monoxide, hydrogen, and carbon dioxide.

How does a wood gasifier work?

A wood gasification boiler. Wood is burned in the firebox (top), and gases travel downward and are burned at 1,800 to 2,000 F in the ceramic chamber below. The hot gases then pass through a fire-tube heat exchanger to transfer heat to water stored in a large tank. ... Wood must be dry (preferably two years old).

What gas does a gasifier make?

2.2.

Air-based gasifiers typically produce a product gas containing a relatively high concentration of nitrogen with a low heating value. Oxygen and steam-based gasifiers produce a product gas containing a relatively high concentration of hydrogen and carbon monoxide, with a higher heating value [17].