| 氯氟烃替代物大气化学研究 |
| 摘要点击 2355 全文点击 2338 投稿时间：1997-01-05 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 CFCs 大气化学 反应机制 HCFCs HFC |
| 英文关键词 CFC substitutes atmospheric chemistry reaction mechanism products |
| DOI 10.13227/j.hjkx.19970426 |
|
| 中文摘要 |
| 大气平流层臭氧(大气臭氧层)由于能够吸收太阳辐射中的高能量紫外线,对人类和生物起着非常重要的保护作用。氯氟烃类化合物(CFCs)已被认为是造成大气平流层臭氧耗损的主要原因,淘汰CFCs和使用替代物日趋紧迫。目前,最有应用前景的替代物是含氢氯氟烃类化合物(HCFCs)和氢氟烃类化合物(HFCs),其中有些已投入工业使用。本文总结了HCFCs和HFCs在大气中的光化学降解机制及其产物,以及产物对环境的影响。 |
| 英文摘要 |
| Chlorofluorocarbons(CFCs)have been regarded as the main course for the depletion of stratospheric ozone. To protect the strato-spheric ozone layer, the phaseout of the CFCs and the use of CFC substitutes are being implemented. At present, hydrochlor of luorocar bons(HCFCs)and hydrofluoro-carbons(HFCs)are the most hopeful substitutes, and some of them have been used in the industry. This paper reviews mechanisms and products of photo-chemical deg radation of HCFCs and HFCs in the atmosphere, and the environmental effect of products. |
