摘要
采用单光子离子化/共振增强的多光子离子化匕行时间质谱法(SPI/REMPI—TOFMS)研究了在汽车钢板的回收冶炼过程中,涂覆油漆的裂变行为。在模拟实验装置中,在线跟踪监测了裂解炉气中的有机裂变产物的演变过程。发现与其它有机材料不同,汽车钢板的涂覆油漆不仅在合成空气中,而且在氮气中也产生酚类有机污染物。从300℃到1190℃都有多环芳烃(PAHs)产生,但在700-800℃时,产生的数量最多,在1000-1190℃,趋于完全燃烧。
The pyrolysis behavior of car paint in waste steel recycling process was studied by single photon ionization (SPI)/resonance enhanced multi-photon ionization (REMPI)-time of flight mass spectrometry (TOFMS). It was found that, the phenol compounds are formed during pyrolysis of car paint not only in synthetic air, but also in nitrogen atmosphere. A large amount of PAHs are produced from 300℃ to 1 190℃ and most at 700 ℃ and 800 ℃. The combustion is completed in the range from 1 000 ℃ to 1 190 ℃.
出处
《钢铁研究学报》
CAS
CSCD
北大核心
2006年第1期54-58,43,共6页
Journal of Iron and Steel Research
关键词
废钢
回收
汽车钢板
油漆
裂变行为
scrap
recycling
automobile steel plate
paint
pyrolysis behavior