Pt–Sn–Ce/γ-Al₂O₃ catalysts were synthesized by the impregnation method and used to produce aromatic hydrocarbons (AHs)-rich bio-oil via catalytic fast pyrolysis of cellulose. The upgraded products were on-line analyzed by pyrolysis-comprehensive two-dimensional gas chromatography/mass spectrometry (Py-GC × GC/MS). It was found that Pt–Sn–Ce/γ-Al₂O₃ catalysts were effective for improving the relative content of AHs in bio-oil. Especially, Pt–Sn–Ce/γ-Al₂O₃ contributed the highest AHs content (85.82%), which was 3 times than that of γ-Al₂O₃, and increased 85.44% compared with non-catalytic. In addition, Pt–Sn–Ce/γ-Al₂O₃ and Pt–Sn/γ-Al₂O₃ can generate the highest monocyclic aromatic hydrocarbons (MAHs) with the relative content of 60.24% and 51.92%, respectively. Pt–Sn–Ce/γ-Al₂O₃ catalyst can be reused five times with stable catalytic activity to produce AHs-rich bio-oil.

Pt-Sn-Ce/γ-Al ₂ O ₃催化剂通过浸渍法合成，并用于通过纤维素的催化快速热解生产富含芳烃（AHs）的生物油。升级后的产品通过热解综合二维气相色谱/质谱（Py-GC × GC/MS）进行在线分析。结果表明，Pt-Sn-Ce/γ-Al ₂ O ₃催化剂可有效提高生物油中AHs的相对含量。其中，Pt-Sn-Ce/γ-Al ₂ O ₃的AHs含量最高（85.82%），是γ-Al ₂ O _{3 的}3倍，比非催化增加了85.44%。此外，Pt-Sn-Ce/γ-Al ₂O ₃和Pt-Sn/γ-Al ₂ O ₃可以生成最高的单环芳烃（MAHs），相对含量分别为60.24%和51.92%。Pt-Sn-Ce/γ-Al ₂ O ₃催化剂可以重复使用5次，具有稳定的催化活性，可以生产富含AHs的生物油。