Abstract
Capillary gas chromatography and mass spectrometry have been used for identification of most main high-boiling components of fraction of pyrolysis oil (boiling point 250 to 350° C under normal pressure) especially those boiling above the b.p. of acenaphthene. All methyl homologues of acenaphthene, phenanthrene, some isomeric methylfluorenes, trimethyl- and methylethyl naphthenes, phenylnaphthalenes, dimethylbiphenyls, benzindans, methylbenzindans and other aromatic hydrocarbons have been prepared as standards. In connection with the preparation of some trimethyl- and methylethylnaphthalenes a discussion is presented of the course of chloromethylation and acetylation of 1- and 2-methyl- and 2-ethylnaphthalenes. Content of methyl-homologues of some hydrocarbons (acenaphthene, fluorene, phenanthrene, and anthracene) in the high-boiling fraction of pyrolysis oil has been compared with that present in similar fraction of coal tar.
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