Refuse Derived Fuel Gasification Technologies for High Efficient Energy Production

There is an increasing demand for replacing primary resources in manufacturing and fossil fuels in energy production with competitive and renewable alternatives. At the same time, many countries still landfill the majority of their municipal solid waste, causing significant environmental challenges and wasting a valuable resource. Waste is not only a problem to get rid of, but a source of valuable raw materials and competitive alternative to fossil fuels.
By adopting an integrated solution for waste management and energy production, a municipality can reduce the environmental impact of waste and increase its revenues from recycling and energy sales. An integrated approach starts with efficient sorting of waste to separate recyclates and wet biowaste. Residual waste is pretreated in a recycling facility to recover remaining recyclates and produce a refuse derived fuel (RDF) for efficient energy recovery. Also energy intensive industries are looking at using RDF to replace fossil fuels.

This paper provides an overview of sustainable solutions for efficient use of RDF as competitive fuel in reliable generation of power, process steam and heat for municipal and industrial applications. The main benefit offered RDF-gasification technologies is the combination of high fuel flexibility, high power production efficiency and good environmental performance. This provides plant operators with more options when sourcing fuels and more electricity production, both improving plant profitability.

The waste gasification concept turns RDF into clean gas for combustion and provides the highest power production efficiency for energy from waste. The latest experiences from the world’s largest waste gasification power plant at Lahti Energy are discussed.

Turning waste into clean gas also gives the option to replace fossil fuels with RDF in existing plants including coal fired boilers and cement and lime kilns. The concept of connecting a waste gasifier to an existing plant is discussed.



Copyright: © TK Verlag - Fachverlag für Kreislaufwirtschaft
Source: Waste Management, Volume 4 (November 2014)
Pages: 9
Price: € 9,00
Autor: Dr. Markus Bolhar-Nordenkampf
Dipl.-Ing. Juhani Isaksson

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