氯化铜对聚氯乙烯燃烧产物的催化作用

Catalytic Effect of Copper Chloride on the Toxic Emissions from Combustion of Polyvinyl Chloride

用现代色谱分析技术确定了在不同炉温条件下,掺杂有CuCl_2的聚氯乙烯燃烧过程中二噁英和多环芳烃的生成量,研究了氯化铜用量对其生成量的影响.结果表明单纯的聚氯乙烯燃烧产生大量的多环芳烃和少量的二噁英,氯化铜的加入可大大增加二噁英的生成量,并能抑制多环芳烃的产生.金属氯化物可能是促使聚氯乙烯燃烧产生二噁英的主要因素之一.

The effects of temperature and the amount of copper chloride on the types and yields of the toxic emissions from combustion of polyvinyl chloride were investigated. The results suggest that a large amount of polycyclic aromatic hydrocarbons ( PAHs) are released from combustion of pure polyvinyl chloride, accompanied by a small amount of polychlorinated dibenzo - p - dioxins and polychlorinated dibenzofurans (PCDD/Fs). Copper chloride can effectively enhance the formation of PCDD/Fs while possibly inhibit formation of PAHs. Metal chlorides are possibly one of the main factors to enhance the PCDD/Fs formation from combustion of polyvinyl chloride.