ABSTRACT
Aromatic compounds (sometimes referred to as arenes) are those compounds that contain one or more benzene rings or similar ring structures (Table 8.1; March, 1985), many of which occur in crude oil and crude oil products (Parkash, 2003; Gary et al., 2007; Speight, 2014; Hsu and Robinson, 2017; Speight, 2017). The majority of the aromatic compounds for petrochemical use are produced in various refinery streams and which are then separated into fractions, of which the most significant constituents are benzene (C6H6), methylbenzene or toluene (C6H5CH3), and the dimethylbenzene derivatives or xylene derivatives (CH3C6H4CH3) with the two-ring condensed aromatic compound naphthalene (C10H8) also being a source of petrochemicals. Representative Single-Ring Aromatic Compounds https://s3-euw1-ap-pe-df-pch-content-public-u.s3.eu-west-1.amazonaws.com/9780429155611/6124c10f-950b-4b78-8dd0-7a8c27f77d1c/content/TAB008x001.jpg"/>
