Comparative evaluation of energy and resource consumption for vacuum carbothermal reduction and Pidgeon process used in magnesium production

With the fast development of the application of magnesium based alloys, the demand for primary magnesium is increasing dramatically all over the world. The Pidgeon process is the most widely used process for producing magnesium in China, but suffers from problems such as high energy, resource consum...

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Main Authors: Yang Tian, Lipeng Wang, Bin Yang, Yongnian Dai, Baoqiang Xu, Fei Wang, Neng Xiong
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2022-03-01
Series:Journal of Magnesium and Alloys
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2213956720302589
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author Yang Tian
Lipeng Wang
Bin Yang
Yongnian Dai
Baoqiang Xu
Fei Wang
Neng Xiong
author_facet Yang Tian
Lipeng Wang
Bin Yang
Yongnian Dai
Baoqiang Xu
Fei Wang
Neng Xiong
author_sort Yang Tian
collection DOAJ
description With the fast development of the application of magnesium based alloys, the demand for primary magnesium is increasing dramatically all over the world. The Pidgeon process is the most widely used process for producing magnesium in China, but suffers from problems such as high energy, resource consumption and environmental pollution. While the process of vacuum carbothermal reduction to produce magnesium (VCTRM) has attracted more and more attention as its advantages, but it has not been well-practiced in industrial applications and there also is no comprehensive and quantitative analysis of this process. This study quantified the flows of resource and energy for the Pidgeon process and the VCTRM process, then compared and analyzed these two processes with each other from three aspects. The VCTRM process results in 63.14% and 69.16% lower of non-renewable mineral resources and energy consumptions when compared to the Pidgeon process, respectively. Moreover, the low energy consumption (2.675 tce vs. 8.681 tce) and material to magnesium ratio (2.953:1 vs. 6.429:1) of the VCTRM process, which lead to lower greenhouse gas (GHG) emissions (8.777 t vs. 26.337 t) and solid waste generation(0.522 t vs. 5.465 t) with a decrease of 66.67% and 90.45%, respectively. Results indicate that the VCTRM process is a more environmentally friendly process for magnesium production with high efficiency but low cost and low pollution, and it shows a good potential to be industrialized in the future after solving the bottleneck problem of the reverse reaction.
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spelling doaj.art-8131ed69c2ff4e89bf6bdc40432415142024-04-16T20:45:57ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672022-03-01103697706Comparative evaluation of energy and resource consumption for vacuum carbothermal reduction and Pidgeon process used in magnesium productionYang Tian0Lipeng Wang1Bin Yang2Yongnian Dai3Baoqiang Xu4Fei Wang5Neng Xiong6State Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization, Kunming University of Science and Technology, Kunming, PR China; National Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming, PR China; Key Laboratory of Vacuum Metallurgy for Nonferrous Metal of Yunnan Province, Kunming University of Science and Technology, Kunming, PR China; School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming, PR China; Corresponding authors at: Key Laboratory of Vacuum Metallurgy for Nonferrous Metal of Yunnan Province, Kunming University of Science and Technology, Kunming, PR China.National Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming, PR China; Key Laboratory of Vacuum Metallurgy for Nonferrous Metal of Yunnan Province, Kunming University of Science and Technology, Kunming, PR China; School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming, PR ChinaState Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization, Kunming University of Science and Technology, Kunming, PR China; National Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming, PR China; Key Laboratory of Vacuum Metallurgy for Nonferrous Metal of Yunnan Province, Kunming University of Science and Technology, Kunming, PR China; School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming, PR ChinaState Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization, Kunming University of Science and Technology, Kunming, PR China; National Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming, PR China; Key Laboratory of Vacuum Metallurgy for Nonferrous Metal of Yunnan Province, Kunming University of Science and Technology, Kunming, PR China; School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming, PR ChinaState Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization, Kunming University of Science and Technology, Kunming, PR China; National Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming, PR China; Key Laboratory of Vacuum Metallurgy for Nonferrous Metal of Yunnan Province, Kunming University of Science and Technology, Kunming, PR China; School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming, PR ChinaNational Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming, PR China; Key Laboratory of Vacuum Metallurgy for Nonferrous Metal of Yunnan Province, Kunming University of Science and Technology, Kunming, PR China; School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming, PR China; Corresponding authors at: Key Laboratory of Vacuum Metallurgy for Nonferrous Metal of Yunnan Province, Kunming University of Science and Technology, Kunming, PR China.National Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming, PR China; Key Laboratory of Vacuum Metallurgy for Nonferrous Metal of Yunnan Province, Kunming University of Science and Technology, Kunming, PR China; School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming, PR ChinaWith the fast development of the application of magnesium based alloys, the demand for primary magnesium is increasing dramatically all over the world. The Pidgeon process is the most widely used process for producing magnesium in China, but suffers from problems such as high energy, resource consumption and environmental pollution. While the process of vacuum carbothermal reduction to produce magnesium (VCTRM) has attracted more and more attention as its advantages, but it has not been well-practiced in industrial applications and there also is no comprehensive and quantitative analysis of this process. This study quantified the flows of resource and energy for the Pidgeon process and the VCTRM process, then compared and analyzed these two processes with each other from three aspects. The VCTRM process results in 63.14% and 69.16% lower of non-renewable mineral resources and energy consumptions when compared to the Pidgeon process, respectively. Moreover, the low energy consumption (2.675 tce vs. 8.681 tce) and material to magnesium ratio (2.953:1 vs. 6.429:1) of the VCTRM process, which lead to lower greenhouse gas (GHG) emissions (8.777 t vs. 26.337 t) and solid waste generation(0.522 t vs. 5.465 t) with a decrease of 66.67% and 90.45%, respectively. Results indicate that the VCTRM process is a more environmentally friendly process for magnesium production with high efficiency but low cost and low pollution, and it shows a good potential to be industrialized in the future after solving the bottleneck problem of the reverse reaction.http://www.sciencedirect.com/science/article/pii/S2213956720302589Magnesium productionVacuum carbothermal reduction processPidgeon processEnergy and resource consumptionGreenhouse gas emissions
spellingShingle Yang Tian
Lipeng Wang
Bin Yang
Yongnian Dai
Baoqiang Xu
Fei Wang
Neng Xiong
Comparative evaluation of energy and resource consumption for vacuum carbothermal reduction and Pidgeon process used in magnesium production
Journal of Magnesium and Alloys
Magnesium production
Vacuum carbothermal reduction process
Pidgeon process
Energy and resource consumption
Greenhouse gas emissions
title Comparative evaluation of energy and resource consumption for vacuum carbothermal reduction and Pidgeon process used in magnesium production
title_full Comparative evaluation of energy and resource consumption for vacuum carbothermal reduction and Pidgeon process used in magnesium production
title_fullStr Comparative evaluation of energy and resource consumption for vacuum carbothermal reduction and Pidgeon process used in magnesium production
title_full_unstemmed Comparative evaluation of energy and resource consumption for vacuum carbothermal reduction and Pidgeon process used in magnesium production
title_short Comparative evaluation of energy and resource consumption for vacuum carbothermal reduction and Pidgeon process used in magnesium production
title_sort comparative evaluation of energy and resource consumption for vacuum carbothermal reduction and pidgeon process used in magnesium production
topic Magnesium production
Vacuum carbothermal reduction process
Pidgeon process
Energy and resource consumption
Greenhouse gas emissions
url http://www.sciencedirect.com/science/article/pii/S2213956720302589
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