Sulfur Hexafluoride (SF6) Emission Estimates for China: An Inventory for 1990-2010 and a Projection to 2020
Sulfur Hexafluoride (SF6) Emission Estimates for China: An Inventory for 1990-2010 and a Projection to 2020
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DOI：
10.1021/es304348x
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发表时间：
2013-04-16
影响因子：
11.4
通讯作者：
Hu, Jianxin
中科院分区：
文献类型：
--
作者：
Fang, Xuekun;Hu, Xia;Hu, Jianxin
六氟化硫（SF6）是《京都议定书》规定的最强温室气体，具有很高的全球变暖潜能。在这项研究中，对中国1990-2010年的SF6排放量进行了清查，并对2020年的排放量进行了预测。结果表明，最高的SF6排放贡献来自电气设备部门（约70%），其次是镁生产部门，半导体制造部门和SF6生产部门（各约10%）。协议和差异，发现我们的估计与以前公布的数据进行比较。1990-2010年中国SF6排放量呈加速增长趋势。由于SF6排放量的相对增长率远高于CO2、CH 4和N2 O，因此SF6在中国温室气体排放中的作用将越来越大。中国对全球排放的贡献从1990年的0.9 +/- 0.3%迅速增加到2008年的22.8 +/- 6.3%，使中国成为近年来全球排放增长的关键贡献者之一。在所研究的一切照旧（BAU）情景下，预计2020年的排放量将达到4270 +/- 1020吨，但在替代情景下，预计BAU排放量将减少约90%。
Sulfur hexafluoride (SF6) is the most potent greenhouse gas regulated under the Kyoto Protocol, with a high global warming potential. In this study, SF6 emissions from China were inventoried for 1990-2010 and projected to 2020. Results reveal that the highest SF6 emission contribution originates from the electrical equipment sector (about 70%), followed by the magnesium production sector, the semiconductor manufacture sector and the SF6 production sector (each about 10%). Both agreements and discrepancies were found in comparisons of our estimates with previously published data. An accelerated growth rate was found for Chinese SF6 emissions during 1990-2010. Because the relative growth rate of SF6 emissions is estimated to be much higher than those of CO2, CH4, and N2O, SF6 will play an increasing role in greenhouse gas emissions in China. Global contributions from China increased rapidly from 0.9 +/- 0.3% in 1990 to 22.8 +/- 6.3% in 2008, making China one of the crucial contributors to the recent growth in global emissions. Under the examined Business-as-usual (BAU) Scenario, projected emissions will reach 4270 +/- 1020 t in 2020, but a reduction of about 90% of the projected BAU emissions would be obtained under the Alternative Scenario.