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Solar combined thermochemical processes for CO2 mitigation in the iron, cement, and syngas industries

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  • Steinfeld, A.
  • Thompson, G.

Abstract

A thermodynamic analysis and related experimental studies indicate the technical feasibility of reducing CO2 emissions via combined processes based on the co-production of synthesis gas (CO + H2) with iron or cement. These combined processes involve the reforming of methane to trap CO2 inherent in the carbothermic reduction of iron oxide and in the thermal decomposition of calcium carbonate. Replacing fossil fuels with solar energy as the source of process heat further reduces CO2 emission to zero and offers the technical possibility of reducing total global anthropogenic CO2 emissions by about 10%.

Suggested Citation

  • Steinfeld, A. & Thompson, G., 1994. "Solar combined thermochemical processes for CO2 mitigation in the iron, cement, and syngas industries," Energy, Elsevier, vol. 19(10), pages 1077-1081.
    • Handle: RePEc:eee:energy:v:19:y:1994:i:10:p:1077-1081
    DOI: 10.1016/0360-5442(94)90096-5
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    Citations

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    Cited by:

    1. Halmann, M. & Steinfeld, A., 2006. "Fuel saving, carbon dioxide emission avoidance, and syngas production by tri-reforming of flue gases from coal- and gas-fired power stations, and by the carbothermic reduction of iron oxide," Energy, Elsevier, vol. 31(15), pages 3171-3185.
    2. Yadav, Deepak & Banerjee, Rangan, 2016. "A review of solar thermochemical processes," Renewable and Sustainable Energy Reviews, Elsevier, vol. 54(C), pages 497-532.
    3. Koepf, E. & Alxneit, I. & Wieckert, C. & Meier, A., 2017. "A review of high temperature solar driven reactor technology: 25years of experience in research and development at the Paul Scherrer Institute," Applied Energy, Elsevier, vol. 188(C), pages 620-651.
    4. Halmann, M. & Frei, A. & Steinfeld, A., 2007. "Carbothermal reduction of alumina: Thermochemical equilibrium calculations and experimental investigation," Energy, Elsevier, vol. 32(12), pages 2420-2427.
    5. Nikulshina, V. & Hirsch, D. & Mazzotti, M. & Steinfeld, A., 2006. "CO2 capture from air and co-production of H2 via the Ca(OH)2–CaCO3 cycle using concentrated solar power–Thermodynamic analysis," Energy, Elsevier, vol. 31(12), pages 1715-1725.
    6. Halmann, M. & Steinfeld, A., 2006. "Production of lime, hydrogen, and methanol by the thermo-neutral combined calcination of limestone with partial oxidation of natural gas or coal," Energy, Elsevier, vol. 31(10), pages 1533-1541.

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