Uncovering Cleaner Method for Underground Metal Mining: Enterprise-Level Assessment for Current and Future Energy Consumption and Carbon Emission from Life-Cycle Perspective

China has committed to peak its carbon emissions by 2030, which puts forward a new issue for underground metal mines—selecting a cleaner mining method which requires less energy and generates less carbon emissions. This paper proposes an enterprise-level model to estimate life-cycle energy consumpti...

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Autores principales:	Sitong Ren, Yang Liu, Gaofeng Ren
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	metal mining energy consumption carbon dioxide emission life cycle assessment conservation supply curve abatement cost curve Mineralogy QE351-399.2
Acceso en línea:	https://doaj.org/article/3f73f01fcbb04be6bb7c7ddff81bf415
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spelling	oai:doaj.org-article:3f73f01fcbb04be6bb7c7ddff81bf4152021-11-25T18:25:57ZUncovering Cleaner Method for Underground Metal Mining: Enterprise-Level Assessment for Current and Future Energy Consumption and Carbon Emission from Life-Cycle Perspective10.3390/min111111702075-163Xhttps://doaj.org/article/3f73f01fcbb04be6bb7c7ddff81bf4152021-10-01T00:00:00Zhttps://www.mdpi.com/2075-163X/11/11/1170https://doaj.org/toc/2075-163XChina has committed to peak its carbon emissions by 2030, which puts forward a new issue for underground metal mines—selecting a cleaner mining method which requires less energy and generates less carbon emissions. This paper proposes an enterprise-level model to estimate life-cycle energy consumption and carbon emissions, which takes more carbon sources (e.g., cement and carbon sink loss) into consideration to provide more comprehensive insights. Moreover, this model is integrated with the energy-conservation supply curve and the carbon abatement cost curve to involve production capacity utilization in the prediction of future performance. These two approaches are applied to 30 underground iron mines. The results show that (1) caving-based cases have lower energy consumption and carbon emissions, i.e., 673.64 GJ/kt ore, 52.21 GJ/kt ore (only considering electricity and fossil fuel), and 12.11 CO<sub>2</sub> eq/kt ore, as compared the backfilling-based cases, i.e., 710.08 GJ/kt ore, 63.70 GJ/kt ore, and 40.50 t CO<sub>2</sub> eq/kt ore; (2) caving-based cases present higher carbon-abatement potential (more than 12.95%) than the backfilling-based vases (less than 9.68%); (3) improving capacity utilization facilitates unit cost reduction to mitigate energy consumption and carbon emissions, and the energy-conservation and carbon-abatement potentials will be developed accordingly.Sitong RenYang LiuGaofeng RenMDPI AGarticlemetal miningenergy consumptioncarbon dioxide emissionlife cycle assessmentconservation supply curveabatement cost curveMineralogyQE351-399.2ENMinerals, Vol 11, Iss 1170, p 1170 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	metal mining energy consumption carbon dioxide emission life cycle assessment conservation supply curve abatement cost curve Mineralogy QE351-399.2
spellingShingle	metal mining energy consumption carbon dioxide emission life cycle assessment conservation supply curve abatement cost curve Mineralogy QE351-399.2 Sitong Ren Yang Liu Gaofeng Ren Uncovering Cleaner Method for Underground Metal Mining: Enterprise-Level Assessment for Current and Future Energy Consumption and Carbon Emission from Life-Cycle Perspective
description	China has committed to peak its carbon emissions by 2030, which puts forward a new issue for underground metal mines—selecting a cleaner mining method which requires less energy and generates less carbon emissions. This paper proposes an enterprise-level model to estimate life-cycle energy consumption and carbon emissions, which takes more carbon sources (e.g., cement and carbon sink loss) into consideration to provide more comprehensive insights. Moreover, this model is integrated with the energy-conservation supply curve and the carbon abatement cost curve to involve production capacity utilization in the prediction of future performance. These two approaches are applied to 30 underground iron mines. The results show that (1) caving-based cases have lower energy consumption and carbon emissions, i.e., 673.64 GJ/kt ore, 52.21 GJ/kt ore (only considering electricity and fossil fuel), and 12.11 CO<sub>2</sub> eq/kt ore, as compared the backfilling-based cases, i.e., 710.08 GJ/kt ore, 63.70 GJ/kt ore, and 40.50 t CO<sub>2</sub> eq/kt ore; (2) caving-based cases present higher carbon-abatement potential (more than 12.95%) than the backfilling-based vases (less than 9.68%); (3) improving capacity utilization facilitates unit cost reduction to mitigate energy consumption and carbon emissions, and the energy-conservation and carbon-abatement potentials will be developed accordingly.
format	article
author	Sitong Ren Yang Liu Gaofeng Ren
author_facet	Sitong Ren Yang Liu Gaofeng Ren
author_sort	Sitong Ren
title	Uncovering Cleaner Method for Underground Metal Mining: Enterprise-Level Assessment for Current and Future Energy Consumption and Carbon Emission from Life-Cycle Perspective
title_short	Uncovering Cleaner Method for Underground Metal Mining: Enterprise-Level Assessment for Current and Future Energy Consumption and Carbon Emission from Life-Cycle Perspective
title_full	Uncovering Cleaner Method for Underground Metal Mining: Enterprise-Level Assessment for Current and Future Energy Consumption and Carbon Emission from Life-Cycle Perspective
title_fullStr	Uncovering Cleaner Method for Underground Metal Mining: Enterprise-Level Assessment for Current and Future Energy Consumption and Carbon Emission from Life-Cycle Perspective
title_full_unstemmed	Uncovering Cleaner Method for Underground Metal Mining: Enterprise-Level Assessment for Current and Future Energy Consumption and Carbon Emission from Life-Cycle Perspective
title_sort	uncovering cleaner method for underground metal mining: enterprise-level assessment for current and future energy consumption and carbon emission from life-cycle perspective
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3f73f01fcbb04be6bb7c7ddff81bf415
work_keys_str_mv	AT sitongren uncoveringcleanermethodforundergroundmetalminingenterpriselevelassessmentforcurrentandfutureenergyconsumptionandcarbonemissionfromlifecycleperspective AT yangliu uncoveringcleanermethodforundergroundmetalminingenterpriselevelassessmentforcurrentandfutureenergyconsumptionandcarbonemissionfromlifecycleperspective AT gaofengren uncoveringcleanermethodforundergroundmetalminingenterpriselevelassessmentforcurrentandfutureenergyconsumptionandcarbonemissionfromlifecycleperspective
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Uncovering Cleaner Method for Underground Metal Mining: Enterprise-Level Assessment for Current and Future Energy Consumption and Carbon Emission from Life-Cycle Perspective

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