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Exergetic analysis and pollutants emission from a rotary kiln system in a major cement manufacturing plant

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  • Jamiu Adetayo Adeniran
  • Rafiu Olasunkanmi Yusuf
  • Adeniyi Saheed Aremu
  • Temitope Mariam Aareola

Abstract

The exergy analysis and air pollutants emission estimation from the kiln system of a major cement manufacturing plant located in Nigeria were conducted with a view to improve the level of performance of the production unit and minimize environmental effects. Material balance and exergy analysis were carried out on the system to determine the exergetic efficiency and exergy destruction rate. Pollutants emission was estimated using bottom-up emission factor approach. The physical and chemical exergy output obtained were 9.07×10 7 and 1.46×0 8 kJ/h, respectively. The exergy efficiency of the kiln system was 27.35%. The measure of entropy generation (6.53×10 8 kJ/h) represented a huge potential for energy savings for the unit. CO 2 emission represented about 99.04% of the total criteria air pollutants emission from the kiln and an estimate of 0.90 tonnes of CO 2 /tonne of clinker produced was obtained. To improve the exergy efficiency and reduce pollutants emission from the kiln system, possible heat recovery options and CO 2 mitigation approaches were suggested.

Suggested Citation

  • Jamiu Adetayo Adeniran & Rafiu Olasunkanmi Yusuf & Adeniyi Saheed Aremu & Temitope Mariam Aareola, 2019. "Exergetic analysis and pollutants emission from a rotary kiln system in a major cement manufacturing plant," Energy & Environment, , vol. 30(4), pages 601-616, June.
  • Handle: RePEc:sae:engenv:v:30:y:2019:i:4:p:601-616
    DOI: 10.1177/0958305X18802766
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    References listed on IDEAS

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    1. Oni, A.O. & Fadare, D.A. & Adeboye, L.A., 2017. "Thermoeconomic and environmental analyses of a dry process cement manufacturing in Nigeria," Energy, Elsevier, vol. 135(C), pages 128-137.
    2. Hasanbeigi, Ali & Price, Lynn & Lin, Elina, 2012. "Emerging energy-efficiency and CO2 emission-reduction technologies for cement and concrete production: A technical review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(8), pages 6220-6238.
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    1. Yong Shi & Anda Tang & Tongsheng Yao, 2022. "A Study on Inter-Provincial Environmental Pollution Movement in China Based on the Input–Output Method," Energies, MDPI, vol. 15(18), pages 1-19, September.

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