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Study on Carbon Emission Characteristics and Emission Reduction Measures of Lime Production—A Case of Enterprise in the Yangtze River Basin

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  • Erxi Wu

    (School of Resource and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430080, China)

  • Qiaozhi Wang

    (School of Resource and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430080, China)

  • Lihua Ke

    (School of Resource and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430080, China)

  • Guangquan Zhang

    (School of Resource and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430080, China)

Abstract

A scientific carbon accounting system can help enterprises reduce carbon emissions. This study took an enterprise in the Yangtze River basin as a case study. The accounting classification of carbon emissions in the life cycle of lime production was assessed, and the composition of the sources of carbon emission was analyzed, covering mining explosives, fuel (diesel, coal), electricity and high-temperature limestone decomposition. Using the IPCC emission factor method, a carbon life cycle emission accounting model for lime production was established. We determined that the carbon dioxide equivalent from producing one ton of quicklime ranged from 1096.68 kg CO 2 equiv. to 1176.96 kg CO 2 equiv. from 2019 to 2021 in the studied case. The decomposition of limestone at a high temperature was the largest carbon emission source, accounting for 64% of the total carbon emission. Coal combustion was the second major source of carbon emissions, accounting for 31% of total carbon emissions. Based upon the main sources of carbon emission for lime production, carbon emission reduction should focus on CO 2 capture technology and fuel optimization. Based on the error transfer method, we calculated that the overall uncertainty of the life cycle carbon emissions of quicklime from 2019 to 2021 are 2.13%, 2.07% and 2.09%, respectively. Using our analysis of carbon emissions, the carbon emission factor of producing one unit of quicklime in the lime enterprise in the Yangtze River basin was determined. Furthermore, this research into carbon emission reduction for lime production can provide a point of reference for the promotion of carbon neutrality in the same industry.

Suggested Citation

  • Erxi Wu & Qiaozhi Wang & Lihua Ke & Guangquan Zhang, 2023. "Study on Carbon Emission Characteristics and Emission Reduction Measures of Lime Production—A Case of Enterprise in the Yangtze River Basin," Sustainability, MDPI, vol. 15(13), pages 1-12, June.
  • Handle: RePEc:gam:jsusta:v:15:y:2023:i:13:p:10185-:d:1180517
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    References listed on IDEAS

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    1. Qing Tong & Sheng Zhou & Yuefeng Guo & Yang Zhang & Xinyang Wei, 2019. "Forecast and Analysis on Reducing China’s CO 2 Emissions from Lime Industrial Process," IJERPH, MDPI, vol. 16(3), pages 1-17, February.
    2. Cavaignac, Renata S. & Ferreira, Newton L. & Guardani, Roberto, 2021. "Techno-economic and environmental process evaluation of biogas upgrading via amine scrubbing," Renewable Energy, Elsevier, vol. 171(C), pages 868-880.
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