Toronto Venture Exchange Symbol : PE

Plasma Assisted Gasifier (PAG)

The PAG is a unique cogeneration technology that effectively converts solid waste into electrical or thermal energy. Waste (feedstock) that may be converted into electricity by the PAG include sorted municipal solid waste (MSW), agricultural waste, de-watered sludges, and chipped tires.

The PAG employs a graphite furnace that features a plasma-arc system that operates at a very high temperature. The plasma arc travels between two electrodes and heats the melt zone in the lower section of the furnace.

The PAG utilizes the plasma system to catalyse and increase the speed of gasification of the waste. The PAG converts the waste to a hydrocarbon-rich fuel gas that powers an internal combustion generator to produce electricity.

The electricity produced may be sold, or used to supplement the power requirements of the PAG itself. The supplemental electricity increases the cost-effectiveness of the PAG while safely destroying the waste.

The first generation of the PAG is designed to process non-recyclable plastics such as plastic bags, tetra-paks, margarine containers and styrofoam. Plastics have a high innate BTU value, and can be a clean and potent source of energy.

 

 
Current Plasma Technologies
The Waste to Electricity Process
PAG - Plasma Assisted Gasifier
 
 

Waste to energy solution using plasma arc to convert targeted waste into fuel gases. 
(Click here for more detail)

  1. Feedstock Preparation System: The feedstock preparation system includes a feed conveyor, a mill crusher, and a dryer. After passing through the crusher, the feed material is screw-augured into the dryer where its moisture content is reduced to 20% (by recovered engine exhaust heat). From the dryer, the material is then augured into the plasma reactor chamber.
  2. Plasma Gasifier Reactor: The partially dried feedstock is gasified into CO and H2 (the hydrocarbon rich fuel gas). The fuel gas leaves at the top of the reactor and enters a mechanical cleaner.
  3. Mechanical Gas Cleaner with Cooling: Any unreacted solids carried by the gas stream are mechanically removed and recovered for re-injection in the reactor vessel for further gasifying. The mechanical cleaner also features two cooling circuits.
  4. Electrostatic Precipitators with Cooling: Two high voltage, low amperage electrostatic precipitators are used to complete the gas cleaning and further cool the gas. The clean cool fuel gas flows to the engine-generator for power generation.
  5. Gas Heat Exchanger: A heat exchanger chills the gas to remove most of its moisture.
  6. Internal Combustion Generator Set: The generator runs on the fuel gas to produce electricity.

PAG - FEATURES & BENEFITS

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  • The PAG is a safe, cost-effective, and reliable waste destruction technology that is environmentally friendly.

    Features and benefits of the PAG include:
  • Leading-edge, state-of-the-art "green" technology for effectively and safely converting waste to energy.
  • Plasma gasification is a high-temperature electro-chemical reactor that is more efficient, cleaner and safer than combustion-based systems.
  • Electricity produced can supplement the PAG's own operating requirements, directed to adjacent facilities, or sold to a local power grid. The PAG is essentially a closed-loop system.
  • The PAG is easy to operate and can be configured to process a wide range of different waste materials.
  • The PAG can be configured on fixed or mobile platforms that enable on-site operations near stockpiles or supplies of specific waste. As such, transportation costs and inherent liabilities are minimized.
  • Versatility. The PAG may be integrated with other mixed media treatment systems as part of a total system solution.
  • The PAG requires minimal handling and preparation of feed material.
  • The PAG replaces combustion of fossil fuels and reduces reliance on landfills

PAG - COMPETITIVE ADVANTAGE

The PAG is calculated to convert waste to fuel gas at greater than 90% efficiency. This rate is significantly higher than the conversion efficiencies of combustion and other gasification processes. The PAG's capital and operating costs are lower than competing thermal processes; based on lower minimum capacities, lower maintenance costs, and greater inherent heating value of the feedstock.

Plasma gasification does not create any of the gases or hazardous ash created by combustion and consequently, the PAG has minimal impact on the environment.

The PAG is also cheaper to operate than traditional systems. Most competitive systems employ metallic electrodes that are subject to wear and require ongoing maintenance, expensive cooling systems, and high pressure in the reactor to catalyze the gasification process. The PAG operates at atmospheric pressure and features the same feed

PARCON - Hazardous Waste
 

Mobile waste facility for treatment of hazardous liquid and gaseous waste streams.
(Click here for more detail)

Future Products
 

PET is developing advanced PARCON and PAG systems to address the needs of the solid waste, resource recovery and con-generation markets

 

RANGE OF SUITABLE WASTES

The range of suitable feedstocks for the PAG include:

  • Sorted MSW, including styrofoam & plastics
  • De-watered sludges
  • Medical waste
  • Chipped tires
  • Agricultural waste

The PAG can be customized for specific feedstocks.

   
 

Copyright 2005 Plasma Environmental Technologies

1100 Burloak Drive, Suite 300, Burlington, ON L7L 6B2

Telephone 905-332-9693  Fax 905-332-9792