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Development of efficiency-enhanced cogeneration system utilizing high-temperature exhaust-gas from a regenerative thermal oxidizer for waste volatile-organic-compound gases

Author

Listed:
  • Bannai, Masaaki
  • Houkabe, Akira
  • Furukawa, Masahiko
  • Kashiwagi, Takao
  • Akisawa, Atsushi
  • Yoshida, Takuya
  • Yamada, Hiroyuki

Abstract

We have developed a gas-turbine cogeneration system that makes effective use of the calorific value of the volatile organic compound (VOC) gases exhausted during production processes at a manufacturing plant. The system utilizes the high-temperature exhaust-gas from the regenerative thermal oxidizer (RTO) which is used for incinerating VOC gases. The high-temperature exhaust gas is employed to resuperheat the steam injected into the gasturbine. The steam-injection temperature raised in this way increases the heat input, resulting in the improved efficiency of the gas-turbine. Based on the actual operation of the system, we obtained the following results: - Operation with the steam-injection temperature at 300 °C (45 °C resuperheated from 255 °C) increased the efficiency of the gasturbine by 0.7%. - The system can enhance the efficiency by 1.3% when the steam-injection temperature is elevated to 340 °C (85 °C resuperheated). In this case, up to 6.6 million yen of the total energy cost and 400 tons of carbon dioxide (CO2) emissions can be reduced annually. - A gas-turbine cogeneration and RTO system can reduce energy consumption by 23% and CO2 emission by 30.1% at the plant.

Suggested Citation

  • Bannai, Masaaki & Houkabe, Akira & Furukawa, Masahiko & Kashiwagi, Takao & Akisawa, Atsushi & Yoshida, Takuya & Yamada, Hiroyuki, 2006. "Development of efficiency-enhanced cogeneration system utilizing high-temperature exhaust-gas from a regenerative thermal oxidizer for waste volatile-organic-compound gases," Applied Energy, Elsevier, vol. 83(9), pages 929-942, September.
    • Handle: RePEc:eee:appene:v:83:y:2006:i:9:p:929-942
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    Citations

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    Cited by:

    1. Raj, N. Thilak & Iniyan, S. & Goic, Ranko, 2011. "A review of renewable energy based cogeneration technologies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(8), pages 3640-3648.
    2. Wang, Liang-Chen & Chang, Li-Ming & Wang, Liang-Bi & Song, Ke-Wei & Zhang, Yong-Heng & Wu, Xiang & Lin, Zhi-Min, 2014. "Analysis of the reusability of the energy of the exhaust gas from the calciner for the production of carbon," Energy, Elsevier, vol. 78(C), pages 439-450.
    3. Mokheimer, Esmail M.A. & Dabwan, Yousef N. & Habib, Mohamed A. & Said, Syed A.M. & Al-Sulaiman, Fahad A., 2015. "Development and assessment of integrating parabolic trough collectors with steam generation side of gas turbine cogeneration systems in Saudi Arabia," Applied Energy, Elsevier, vol. 141(C), pages 131-142.
    4. Lee, Sangick & Choi, Inhwan & Chang, Daejun, 2013. "Multi-objective optimization of VOC recovery and reuse in crude oil loading," Applied Energy, Elsevier, vol. 108(C), pages 439-447.
    5. Marín, Pablo & Díez, Fernando V. & Ordóñez, Salvador, 2014. "A new method for controlling the ignition state of a regenerative combustor using a heat storage device," Applied Energy, Elsevier, vol. 116(C), pages 322-332.
    6. Mokheimer, Esmail M.A. & Dabwan, Yousef N. & Habib, Mohamed A., 2017. "Optimal integration of solar energy with fossil fuel gas turbine cogeneration plants using three different CSP technologies in Saudi Arabia," Applied Energy, Elsevier, vol. 185(P2), pages 1268-1280.

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