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《Resources Science》 2018-06
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Carbon emissions from the petroleum industry based on the analysis of material flow and life cycle

WU Ming;JIANG Guoqiang;JIA Fengrui;LIU Guangxin;YUE Qiang;College of Petroleum Engineering, Liaoning Shihua University;School of Metallurgy, Northeastern University;  
Research in China on carbon emissions throughout the petroleum life cycle has mainly focused on the consumption of petroleum products, which cannot truly reflect carbon emissions. In order to explore development trends of carbon emissions in the petroleum life cycle, we establish the carbon flow model throughout the petroleum life cycle combining material flow analysis(MFA) and life cycle assessment(LCA). Taking a large-scale domestic refining and petrochemical enterprise as an example, hidden carbon emissions and carbon emissions from petroleum combustion are calculated, and factors influencing embodied carbon emissions are analyzed. Four scenarios were developed to predict the hidden carbon emission trend for China's petroleum sectors from 2015-2050. The results show that the total carbon emission per ton of oil is about 670 kg(equal to CO_2 emission of 2457 kg) in the petroleum life cycle, of which hidden carbon accounts for 23% of total carbon emissions. Exploitation and refining processes account for 46% and 54% of the total hidden carbon, respectively. In the exploitation processes, embodied carbon emissions mainly come from natural gas consumption and electricity consumption, accounting for 47% and 30% of the total, respectively. The embodied carbon emissions of refining processes are mainly from coke combustion, accounting for 46% of the total. In the consumption processes, the consumption of gasoline, diesel and kerosene in the transportation industry is the largest, accounting for 42%, 53% and 80% of the total, respectively. Improving the energy efficiency of the petroleum sector and optimizing energy consumption structure is an effective way to achieve a national carbon emission peak by 2030.
【Fund】: 国家自然科学基金项目(71373003);; 辽宁省教育厅高等学校科学研究一般项目(L2014146)
【CateGory Index】: F426.22;X322
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