“…In order to facilitate analysis, the components were grouped into alkanes, phenols, alkyl-naphthalene (AN), alkylbenzene (AB), indenes, fluorenes, phenanthrenes, anthracenes, biphenyls, alkenes, and O-containing compounds (mainly including ketones, ethers, aldehydes, alkanoates, carboxylic acids, etc., except phenols), and a detailed classification method was shown in our previous studies. 20,54 As shown in Figure 1, alkanes, phenols, and AN were the three most abundant compounds in the feedstock, which accounting for 36.7%, 25.38%, and 20.8%, respectively. Aromatics made up more than 30% of the feedstock and most of them were polycyclic aromatic hydrocarbons.…”