CHEMICAL ANALYSIS OF HIGH ASH BRAZILIAN COAL TAR. 3. HYDROCARBON CHARACTERIZATION |
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| Authors: | Fernando Mauro Lanças Elina Bastos Caramão |
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| Affiliation: | 1. University of S?o Paulo, Institute of Chemistry of S?o Carlos , 13560-970, S?o Carlos , SP , Brazil;2. Federal University of the Rio Grande do Sul, Institute of Chemistry , Av. Bento Gon?alves, 9500, 91.500-000, Porto Alegre , RS , Brazil |
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| Abstract: | Abstract In this paper we show the total analysis of the hydrocarbon fractions obtained from the chromatographic fractionation of a coal tar cut, previously described. All fractions were analyzed by Gas Chromatography coupled to Mass Spectrometry using a non-polar capillary column. A group-type distribution of aliphatic, olefins and monoaromatic hydrocarbons was found in the first three fractions obtained (I, II and III). In fractions IV and V polyaromatics with two or more condensed rings were founded. Many of these hydrocarbons are recognized to be carcinogenic and mutagenic, including pyrene, chrysene and others. |
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