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Oxy-co-gasification of coal and biomass in an integrated gasification combined cycle (IGCC) power plant

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  • Valero, Antonio
  • Usón, Sergio

Abstract

Oxy-gasification, or oxygen-blown gasification, enables a clean and efficient use of coal and opens a promising way to CO2 capture. Moreover, oxy-co-gasification with biomass implies the use of a renewable resource and additional CO2 reduction. Proper gasifier operation is a key issue in both techniques. A model of an entrained flow gasifier, validated with nearby 3000 actual steady-state operation data (4800h), is used to study co-gasification of coal, petroleum coke and up to 10% of several types of biomass. As a result, influence of fuel variation in gasifier efficiency and modifications in operation that should be made in oxy-co-gasification are obtained. The model is also used to build reference operation maps (graphs where the main gasification parameters are related to the degrees of freedom that the operator has). A general method for building experimental operation maps only from plant data has also been applied to the gasifier. Tendencies of the maps are the same of those of the model-made maps.

Suggested Citation

  • Valero, Antonio & Usón, Sergio, 2006. "Oxy-co-gasification of coal and biomass in an integrated gasification combined cycle (IGCC) power plant," Energy, Elsevier, vol. 31(10), pages 1643-1655.
    • Handle: RePEc:eee:energy:v:31:y:2006:i:10:p:1643-1655
    DOI: 10.1016/j.energy.2006.01.005
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    References listed on IDEAS

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    1. Yamashita, Kei & Barreto, Leonardo, 2005. "Energyplexes for the 21st century: Coal gasification for co-producing hydrogen, electricity and liquid fuels," Energy, Elsevier, vol. 30(13), pages 2453-2473.
    2. de Jong, Wiebren & Andries, Jans & Hein, Klaus R.G., 1999. "Coal/biomass co-gasification in a pressurised fluidised bed reactor," Renewable Energy, Elsevier, vol. 16(1), pages 1110-1113.
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