Energy Consumption and Carbon Emission Analysis of Mesocarbon Microbeads Production for Lithium Batteries
GAO Siwen1,2, GONG Xianzheng1,2, SUN Boxue1,2
1 College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124; 2 National Engineering Laboratory for Industrial Big-data Application Technology, Beijing 100124
摘要 中间相炭微球(MCMB)负极材料作为新型材料受到了社会的关注,同时其制造所带来的环境污染也逐渐增加。本工作针对锂电池MCMB材料开展了全生命周期能耗与碳排放研究, 功能单位定义为生产1 t MCMB负极材料产品,系统边界包括原料获取、能源供应与材料生产阶段,分析了MCMB材料全生命周期的能耗结构,辨识了碳排放的关键影响因素。能耗分析结果显示,1 t MCMB负极材料的全生命周期能耗为149.37 GJ,初级能耗结构为原煤(82.82%)、原油(11.03%)、天然气(6.15%),能源生产阶段对生命周期能耗的贡献度为80.81%。碳排放分析结果显示,生产1 t MCMB负极材料的碳排放总量为11 824.61 kg CO2-eq,电力、中温沥青和焦炉煤气消耗量对碳排放计算结果的影响最为显著,调整能源结构是降低MCMB负极材料生产碳排放的有效手段。
Abstract: Mesocarbon microbeads (MCMB) anode material has recieved great social concern as a new material, and the environmental pollution caused by the production process is gradually increasing as also. In this research, energy consumption and carbon emission of MCMB anode material during the whole life cycle were quantified and analyzed. The functional unit was defined as 1 t MCMB anode material. The system boundary included raw material acquisition, energy supply and material production stage. The energy consumption structure of MCMB anode material was analyzed and the key factor of carbon emission was identified. The energy consumption analysis results showed that life cycle energy consumption of 1 t MCMB anode material is 149.37 GJ, the primary energy consumption structure is raw coal (82.82%), crude oil (11.03%) and natural gas (6.15%), and the energy production stage is the main consumer of all stages (energy production, resource production and product transportation), accounting for 80.81% to the total. The results of carbon emission analysis showed that the carbon emission of 1 t of MCMB anode material is 11 824.61 kg CO2 -eq. Electricity, soft pitch and coke oven gas were sensitive to carbon emissions, and adjusting the energy structure of MCMB was effective to reducing carbon emissions.
高思雯, 龚先政, 孙博学. 典型锂电池中间相炭微球负极材料生产的能耗与碳排放分析[J]. 材料导报, 2018, 32(22): 4022-4026.
GAO Siwen, GONG Xianzheng, SUN Boxue. Energy Consumption and Carbon Emission Analysis of Mesocarbon Microbeads Production for Lithium Batteries. Materials Reports, 2018, 32(22): 4022-4026.
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2018, Vol. 32 
