煤烟气中痕量有机物的分析及去除

Analysis and Elimination of Trace Organic Compounds in Smoke from Burning Coal

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.