Abstract
The production of power from solid fuels via gasification has mainly been developed for small sized plant e.g. downdraft gasifiers together with Otto engines. Large scale pressurised IGCC plants have been developed especially for coal, but demonstration projects using biomass are underway.
There has not been much activity in the midsize range 5 to 50 MW, one of the reasons being that clean gas is required. A gasifier alone is therefore inadequate, further processing of the gas is required. Another reason has been the lack of experience and interest of manufacturers of engines and gas turbines making it difficult to find vendors for low-BTU designs.
Since 1985, Studsvik (Thermal Processes) has developed an atmospheric gasification process with integrated gas clean-up for use in the context of power generation for this capacity range, CFBG. At Studsvik a 2 MW (thermal) pilot gasifier, including a 500 kW diesel engine has been used for
development. Fuels tested have been wood, bark and RDF, these pilot tests are highlighted in this paper.
Two 15 MW RDF gasifiers (without hot gas cleaning) coupled to a boiler with a condensing turbine were started-up in 1991 in Italy.
Studies for second generation plants, both for biomass and RDF, utilising boilers and steam turbines, gas turbines and diesel engines have been performed for various clients. Those activities will continue in the newly formed independent company TPS Termiska Processer AB.
Bank assessment. A demonstration plant for biomass is likely to be constructed in the near future.
Waste management and recycling is an issue which is growing rapidly in importance. The technology for providing clean, economic and efficient energy use of waste will have an impact on the public acceptance for energy use as a recycling method for combustible waste. Gasification has a high potential in this respect even if there still is development work to be done to realise these schemes. A first step, the gasifier, has already been taken in Italy.
Studies for second generation plants, both for biomass and RDF, utilising boilers and steam turbines and diesel engines have been performed for various clients. Those activities will continue in the newly formed independent company TPS Termiska Processer AB.
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Blackadder, W.H., Lundberg, H., Rensfelt, E., Waldheim, L. (1993). Heat and Power Production via Gasification in the Range 5–50 MWe . In: Bridgwater, A.V. (eds) Advances in Thermochemical Biomass Conversion. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1336-6_35
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DOI: https://doi.org/10.1007/978-94-011-1336-6_35
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