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| Comparison on Life Cycle Assessment of Magnesium Smelting by Pidgeon Process and Vacuum Carbothermal Reduction Method |
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Received:July 10, 2021
Revised:July 19, 2021
Accepted:July 22, 2021
Published Online:October 20, 2021
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| DOI：doi：10.3969/j.issn.1007-7545.2021.11.007 |
| KeyWord:magnesium; magnesium smelting; Pidgeon process; vacuum carbothermic reduction method; life cycle assessment (LCA) |
| Author | Institution |
| LIU Hong-xiang |
昆明理工大学真空冶金国家工程实验室 |
| TIAN Yang |
复杂有色金属资源清洁利用国家重点实验室 |
| YANG Bing |
昆明理工大学 |
| XU Bao-qiang |
昆明理工大学莲花校区冶金与能源工程学院 |
| DAI Yong-nian |
复杂有色金属资源清洁利用国家重点实验室 |
| WANG Li-peng |
复杂有色金属资源清洁利用国家重点实验室 |
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| Abstract: |
| Life cycle assessments (LCA) of magnesium smelting process by Pidgeon method and vacuum carbothermic reduction method were carried out using 1 t magnesium ingot as functional unit to study environmental load and energy consumption of processes including raw material mining, material preparation, material consumption, energy production, and pollution discharge. On the basis of deriving relevant parameters of LCA, Pidgeon process and vacuum carbothermal reduction method were compared in terms of resource and energy consumption, gaseous pollutant emission and environmental impact. Respective environmental load and energy consumption characteristics of two process were clarified. By comparison, carbothermic reduction method has obvious advantages over Pidgeon process in terms of resource saving, energy conservation, environmental protection and sustainable development. |
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