Our Waste Plasma Gasification offers numerous unique benefits over conventional thermal treatment
and process enables almost complete landfill diversion and is complementary to
recycling. It can be used in conjunction with existing recycling schemes and,
after the removal of recyclates, takes waste that cannot be recycled and uses
it to produce energy.
The process produces a high value construction material called SLAG that is recognised as a product not a waste. This removes any environmental, regulatory and commercial risks, which are associated with concerns over the potential eco-toxicity of bottom ash produced by incinerators and other thermal processes.
Our plant is around 15m high, meaning that it can fit into a standard warehouse similar to the kind seen in edge of town business parks. Emissions from the plant are very low allowing for a stack of only some 10 meters above the height of the building. When producing fuels local emissions are negligible and no stack is required.
The low environmental impact means that a plant can be located, unobtrusively, on the edge of a town, taking waste from that town and supplying power and heat in return - a local, community solution to local waste management challenges and sustainable energy requirements.
Situating a plant close to population centers has additional benefits such as reducing the carbon footprint of waste by cutting the distance over which it’s transported. Moreover, locating plants close to heat users, whether industrial or domestic, further improves energy efficiency.
The core of the technology is a two-stage advanced conversion process. It combines two long standing and well proven technologies (gasification and plasma conversion) in a unique configuration.
After the removal of valuable recyclates, the Gasplasma process treats a wide range of non-recyclable feedstocks produced from residual municipal solid waste and commercial/industrial waste converting them all into two high value outputs: a clean, high quality, energy rich synthesis gas (syngas) and a solid, vitrified product SLAG – each with multiple applications.
Our Technology offers a genuinely
game-changing solution for a zero waste future.
See Follow scheme " Best Green Technologies" to disposal waste :
A full plant a waste plasma gasification includes:
1) A waste reception hall and materials recycling facility (MRF);
2)The core Gasplasma technology consisting of the fluidised bed gasifier and plasma convertor;
3) Gas cleaning equipment to cool, clean and condition the syngas;
4) An island of power to generate renewable energy and heat or the transformation of the syngas obtained into other products.
The fluidised bed gasifier transforms the organic materials in the feedstock into a crude or unrefined syngas; this is done at a temperature of around 800 °C in a controlled reduced oxygen environment. The syngas produced by gasification alone contains condensable tars making it unsuitable for use in efficient gas engines or gas turbines.
The crude syngas is then fed into a separate, secondary plasma converter. The intense heat from the plasma arc and the strong ultraviolet light of the plasma ‘cracks’ the condensable ars and other longer chain organics into a clean hydrogen-rich syngas.
The bottom ash from the gasifier, containing mainly inorganic elements, is also fed into the plasma converter and is vitrified into a product called SLAG. This is a mechanically strong and extremely leach resistant material with multiple applications (in contrast to the bottom ash arising from other thermal waste processes).
The syngas is then cooled, cleaned and conditioned through conventional wet and dry scrubbers (to remove any acidic components) before being used directly in a power island, consisting of reciprocating gas engines or gas turbines, to generate renewable power and heat for export. At its facility plant, ITC has been operating a gas engine on syngas since 2008.
As the world looks for new sustainable waste management solutions and alternative renewable energy supplies, our technology offers a world-class solution to both of these global challenges.