The chemical composition of eleven residues, including feedstocks, heavy cycle oils and clarified oils of catalytic cracking, was analyzed by LC, MS, ~1H and ~(13)C NMR, AAS, VPO, elemental analyses, etc. .

• 本文应用浓体色谱.；质谱；1~H和~(13)C核磁共振波谱；原子吸收光谱；元素分析和分子量测定等手段分析了多种催化裂化原料油；循环油和澄清油的化学组成