皮江法炼镁与真空碳热还原法炼镁生命周期评价比较研究  

Comparison on Life Cycle Assessment of Magnesium Smelting by Pidgeon Process and Vacuum Carbothermal Reduction Method

作　　者：刘红湘 田阳[1,2,3,4] 杨斌 徐宝强[1,2,3,4] 戴永年 王立鹏[1,2,3,4] LIU Hong-xiang;TIAN Yang;YANG Bin;XU Bao-qiang;DAI Yong-nian;WANG Li-peng(State Key Laboratory of Complex Non-ferrous Metal Resources Clear Utilization,Kunming 650093,China;National Engineering Laboratory for Vacuum Metallurgy.Kunming University of Science and Technology,Kunming 650093,China;Key L.aboratory of Vacuum Metallurgy for Nonferrous Metal of Yunnan Province,Kunming 650093,China;Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]复杂有色金属资源清洁利用国家重点实验室,昆明650093 [2]昆明理工大学真空冶金国家工程实验室,昆明650093 [3]云南省有色金属真空冶金重点实验室,昆明650093 [4]昆明理工大学冶金与能源工程学院,昆明650093

出　　处：《有色金属（冶炼部分）》2021年第11期37-45,共9页Nonferrous Metals（Extractive Metallurgy)

基　　金：云南省应用基础研究计划项目(2019FB080)。

摘　　要：对皮江法炼镁工艺和真空碳热还原法炼镁工艺进行了生命周期评价研究。评价过程以1t镁锭为功能单位,研究了包括原料开采、物料制备、物料耗损、能源生产、污染排放等过程的环境负荷以及能源消耗。在得出生命周期评价相关参数的基础上,对皮江法炼镁与真空碳热法炼镁在资源与能源消耗、气型污染物的排放和对环境的影响方面进行了比较,明确了上述两种不同工艺过程各自的环境负荷和能源消耗特点。通过比较,碳热法炼镁工艺较皮江法在资源节约、节能减排、环境保护及可持续发展方面有明显优势。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.

关 键 词：镁 镁冶炼 皮江法 真空碳热还原法 生命周期评价 

分 类 号：TF821[冶金工程—有色金属冶金]