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Nexterra's proprietary gasification technology provides a clean, versatile and low cost means of converting wood and other biomass fuels into syngas to produce heat and power at plant-scale applications. The technology utilizes the fixed bed updraft method of gasification. Nexterra offers biomass gasification systems ranging from 2 to 40 MWth / 8 to 100 MMBtu/hr net useable heat for thermal systems or for onsite heat and power users. For power generation, Nexterra is targeting systems from 2 to 10 MW electricity for cogeneration systems.
How our technology works
The core of Nexterra’s technology is a fixed-bed, updraft gasifier. Fuel, sized to 3 inches or less, is bottom-fed into the centre of the dome-shaped, refractory lined gasifier. Combustion air, steam and/or oxygen are introduced into the base of the fuel pile. Partial oxidation, pyrolysis and gasification occur at 1500 — 1800 °F, and the fuel is converted into “syngas” and non-combustible ash. The ash migrates to the base of the gasifier and is removed intermittently through an automated in-floor ash grate. The clean syngas can then be directed through energy recovery equipment or fired directly into boilers, dryers and kilns to produce useable heat, hot water, steam and/or electricity.
For more detailed process information, place your cursor on each of the four components in the illustration to the right.
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