Historical Emissions of HFC-23 (CHF3) in China and Projections upon Policy Options by 2050

详细信息    查看全文

• 作者：Xuekun Fang ; Benjamin R. Miller ; ShenShen Su ; Jing Wu ; Jianbo Zhang ; Jianxin Hu
• 刊名：Environmental Science & Technology
• 出版年：2014
• 出版时间：April 1, 2014
• 年：2014
• 卷：48
• 期：7
• 页码：4056-4062
• 全文大小：421K
• 年卷期：v.48,no.7(April 1, 2014)
• ISSN：1520-5851

文摘

Trifluoromethane (CHF₃, HFC-23) is one of the hydrofluorocarbons (HFCs) regulated under the Kyoto Protocol with a global warming potential (GWP) of 14鈥?00 (100-year). China鈥檚 past, present, and future HFC-23 emissions are of considerable interest to researchers and policymakers involved in climate change. In this study, we compiled a comprehensive historical inventory (1980鈥?012) and a projection (2013鈥?050) of HFC-23 production, abatements, and emissions in China. Results show that HFC-23 production in China increased from 0.08 卤 0.05 Gg/yr in 1980 to 15.4 卤 2.1 Gg/yr (228 卤 31 Tg/yr CO₂-eq) in 2012, while actual HFC-23 emissions reached a peak of 10.5 卤 1.8 Gg/yr (155 卤 27 Tg/y CO₂-eq) in 2006, and decreased to a minimum of 7.3 卤 1.3 Gg/yr (108 卤 19 Tg/yr CO₂-eq) in 2008 and 2009. Under the examined business-as-usual (BAU) scenario, the cumulative emissions of HFC-23 in China over the period 2013鈥?050 are projected to be 609 Gg (9015 Tg CO₂-eq which approximates China鈥檚 2012 CO₂ emissions). Currently, China鈥檚 annual HFC-23 emissions are much higher than those from the developed countries, while it is estimated that by year 2027, China鈥檚 historic contribution to the global atmospheric burden of HFC-23 will have surpassed that of the developed nations under the BAU scenario.