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Using turbine expanders to recover exothermic reaction heat—flow sheet development for typical chemical processes

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  • Greeff, I.L.
  • Visser, J.A.
  • Ptasinski, K.J.
  • Janssen, F.J.J.G.

Abstract

The integration of a turbine expander into different types of high pressure, exothermic chemical synthesis processes is considered. In conventional systems, the reaction heat is often transferred to generate steam to drive steam turbines or used for heat integration. The heat is reduced in quality due to the temperature driving forces in the heat exchange equipment. Reaction heat can be utilised at the maximum possible temperature by placing a turbine expander directly after the reactor. The power generated from such combined power and chemical systems can either be exported or used to satisfy the process compressor requirements. A methodology is presented to lend structure to the development and analysis of the flow sheets for the mentioned systems. The methodology involves the consideration of various factors that were identified to impact on the flow sheet development. These factors are discussed and a brief overview of the flow sheet development for four different case studies is given. Process data generated from simulations are used.

Suggested Citation

  • Greeff, I.L. & Visser, J.A. & Ptasinski, K.J. & Janssen, F.J.J.G., 2004. "Using turbine expanders to recover exothermic reaction heat—flow sheet development for typical chemical processes," Energy, Elsevier, vol. 29(12), pages 2045-2060.
    • Handle: RePEc:eee:energy:v:29:y:2004:i:12:p:2045-2060
    DOI: 10.1016/j.energy.2004.03.048
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    1. Greeff, I.L. & Visser, J.A. & Ptasinski, K.J. & Janssen, F.J.J.G., 2003. "Integration of a turbine expander with an exothermic reactor loop—Flow sheet development and application to ammonia production," Energy, Elsevier, vol. 28(14), pages 1495-1509.
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    Cited by:

    1. Greeff, Isabella L., 2022. "Using synthesis gas heat to produce work via an externally fired gas power cycle," Energy, Elsevier, vol. 239(PB).
    2. Arabkoohsar, A. & Farzaneh-Gord, M. & Deymi-Dashtebayaz, M. & Machado, L. & Koury, R.N.N., 2015. "A new design for natural gas pressure reduction points by employing a turbo expander and a solar heating set," Renewable Energy, Elsevier, vol. 81(C), pages 239-250.
    3. Flórez-Orrego, Daniel & Nascimento Silva, Fernanda & de Oliveira Junior, Silvio, 2019. "Syngas production with thermo-chemically recuperated gas expansion systems: An exergy analysis and energy integration study," Energy, Elsevier, vol. 178(C), pages 293-308.

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