酸性馏分均占总可溶性非烃馏分的47%以上，其中直链脂肪酸占气相色谱可检测总酸性化合物的96%以上。
The acidic fraction constitutes the main proportion of the oxygenated compounds(>47%), among which straight-chain fatty acids account for more than 96%.
以催化裂化油浆富芳烃馏分为原料，在酸性催化剂的作用下合成了沥青树脂。
Under the action of acid catalyst, the pitch resin was synthesized by using aromatic hydrocarbon enriched raw material from FCC slurry.
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