The potential for adding plastic waste fuel at a coal gasification power plant

Abstract

Plastics wastes from a municipal solid waste plant have a high energy content which make it an interesting option for co-processing with coal. The potential for adding plastic waste to a coal fired Texaco IGCC (Integrated Gasification Combined Cycle) power station is examined. The resulting efficiency increases due to the improved gasification qualities of plastic over coal. For the overall economics to be the same as the coal only case, the maximum amount that the power station can afford to spend on preparing the plastic waste for use is similar to the assumed coal cost, plus the avoided landfill cost, minus the transport cost. The location of the power station plays a key role, since this has an effect on the transport costs as well as on the landfill charges. The sensitivity of the economics of co-processing plastic waste with coal for a variety of power station operational parameters is presented.

Keywords

Plastic fuel waste plastics coal gasification economic analysis

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References

APME, Association of Plastic Manufactures in Europe (1994) EV-17866v-04, Helsinki, Finland, EKONO Energy Ltd, 105pp (8 July 1994).

Campbell, P.E. , McCahey, S. , Williams, B.C. & Beekes, M.L. (2000) Coal and Plastic Waste in a PF Boiler, Energy Policy 28, 223-229.

Curran, P.F. , Simonsen, K.A. (1993) The Gasification of Mixed Plastic Waste, 8th Annual Recyclingplas Conference, Washington DC, 1-11.

Davis, L.A. & Miranda, J.E. (1990) Texaco Hazardous Waste Gasification, The Environmental Professional, 12, 40-44.

Keller, J. (1990) Diversification of Feedstocks and Products: Recent Trends in the Development of Solid Fuel Gasification using the Texaco and The HTW Process, Fuel Processing Technology 24, 247-268.

Morrison, G.F. (1996) Cofiring of coal and waste IEACR/90, IEA, Coal Research, London, p.17, ISBN: 92-90290274-1.

Rose, J.W. & Cooper, J.R. (1977) Technical data on fuel, 7th edn, London; ISBN: 0-707-301297.

Romey, I.F.W. (1999) Joule III Programme, Clean Coal Technology R&D, European Commission EUR19285/IIEN; ISBN: 3-000-004658-5.

10.

Wallman, P.H. , Thorsness, C.B. & Winter, J.D. (1998) Hydrogen Production from Waste, Energy, 23, 271-278.

11.

Williams, B.C. (1994) The development of the ECLIPSE process simulator and its application to the techno economic assessment of fossil fuel based power generation technologies, DPhil Thesis, Energy Research Centre, University of Ulster, Coleraine, N.I.

12.

Willams, B.C. & McMullan, J.T. (1988) Development of computer models for the simulation of coal liquefaction processes, in Imarisio, G. & Bemtgen, J.M . (ed) Progress in Synthetic Fuels, London, 183-194.

13.

Williams, B.C. & McMullan, J.T. (1994) Development of computer-models for the simulation of coal-liquefaction processes, International Journal of Energy Research 18, 117-122.

14.

Williams, B.C. & McMullan, J.T. (1996) Techno-economic analysis of fuel conversion and power generation systems - The development of a portable chemical process simulator with capital cost and economic performance analysis capabilities, International Journal of Energy Research 20, 125-142.

15.

Texaco Inc. (1999) Gasification Technologies in www.texaco.com