[Graphic] SEDA, Sustainable Energy Development Associates
1965 Fair Way / P.O. Box 22444
Carson City, NV   89701
Tel: 775 / 883 - 4976
[Graphic] SEDA, Sustainable Energy Development Associates



SEDA's home page.
Executive Summary.
Biomass information.
About Us.
Contact Us.
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Links to other biomass resources.
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   as a .pdf file.

Biomass Plasma Gasification
(Continued from the Executive Summary page.)

Units start at 10 MW (mega watt) and with modular design can support larger communities. The technology is offered for the following reasons:
  • Can accept most municipal solid waste
  • Self-sustaining after start-up
  • Reduces cost of transport to site and tipping less to land fills
  • Income can be derived from by-products of excess heat, syngas, or electricity
  • Emission levels can meet or exceed standards
   In one Biomass Plasma Gasification process, waste is delivered to the converter by a conveyor to an auger that shreds and crushes it to pea-sized bits that are pushed into the converter's "reactor chamber."
   Inside a sealed vessel (often stainless steel) filled with a stable gas (nitrogen or air) a current passes between two electrodes and rips electrons from the air, converting the gas into plasma. The current flows continuosly through the newly formed plasma, creating a field of extremely intense energy very much like lightning. The radiant energy of the plasma arc is so powerful it disintegrates trash (waste) into its constituent elements by tearing apart molecular bonds.
   The products are heat and synthesis gas. The only byproduct is an obsidian-like glass used as a raw material for bathroom tile or high-strength asphalt.


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