第2个回答 2010-04-30
Taking the measure of chloroform to extract the sample of protogenesis texture coal and the deformed-coal from the Mine No.8, Ping Dingshan. According to the experiment result, there is a large different in the chloroform between the two kinds of coal. Therefore, compared with the texture coal, it is low in seturated hydrocarbon content in the extract of deformed-coal, but it is high in aromatic compound. deformed-coal, under the action of chemechanics, is strength in the ability of side chain, which comes off nucleus of the aromatic hydrocarbon, may remove from its matrix, and also adsorb its matrix. As a result, it has a higher content of low molecular compound.
It is extremely remarkble to the changing for normal compound of alkanes in the formation processes of deformed-coal. Because the deformed-coal was crushed, enven deformation of its toughness and plasticity, by the tectonic stress, carbochain is broke and light component is formed in coal seam to remove and eject, which heavy component is obviously increasing in the deformed-coal. In the process of deformed-coal, a series compound of condensed aromatics grow in quantity with splitting actin under the aromatization. Meanwhile, there is a low content of compound in unthickened polynuclear aromatic hydrocarbon (PAH) and pah mix which both are poor in chemical stability.