摘要
采用不同吸附剂对煤烟气中的痕量有机物进行了富集,比较了各种吸附剂的富集能力,对富集的样品用索氏提取及超临界流体萃取装置进行了萃取,用GC-MS,DS联用方法作了定性鉴定,指出超临界萃取技术在提取煤烟气中痕量有机物方面的优势.探讨了用催化转化法去除煤烟气中有机污染物的可能性.
An analysis system of trace organic compounds in smoke from burning coal was established, which included concentration of organic compounds by adsorbent, super critical fluid extraction (SFE), and gas chromatography-mass spectroscopy for identification. The abilities of four kinds of adsorbents were compared. SFE is superior to solvent extraction in extracting organic compound in coal smoke, More than 130 compounds were detected, in-cluding alkane, alkene, aromatic hydrocarbon with low ring number, alcohol, aldehyde, ke-tone, acid, ester, phenol, polyring compounds and heterocyclic compounds. The possibility of elimination organic compounds by using catalyst of CuO-Mn/Al2O3 was researched for the first time. It was shown that thls kind of catalyst can eliminate most of the organic contami-nats in smoke effectively and economically.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第1期24-28,共5页
Chemical Journal of Chinese Universities
基金
山东省自然科学基金
关键词
煤烟气
有机物
富集
超临界流体
萃取
痕量分析
Smoke from burning coal, Trace organlc compounds, Concentration, Super-crit-ical fluid extraction