Experiments were conducted in this study on the co-hydropyrolysis of three components of biomass (cellulose, hemicellulose, and lignin) and HDPE by using SR-Pd/Trap-HZ-5 as catalyst. To control the variable, we use the same experiment conditions in co-hydropyrolysis: Si/Al ratio of 50, Pd load 1 %, catalyst to reactant ratio of 1 : 10, 1 MPa, 400 °C, reaction time 1 h. Use XRD, TEM, BET, and NH₃-TPD to confirm catalyst successful synthesis; use pine sawdust (PW) co-hydropyrolysis with HDPE to analyse catalytic activity; and use GC/MS to characterize the chemical composition of the bio-oil from the co-hydropyrolysis of biomass components and HDPE. The results show that cellulose has a significant synergistic effect with aromatic hydrocarbon production, whose selectivity was 93.3 %; hemicellulose has a synergistic effect; aromatic selectivity can reach 75.1 %; and a negative synergistic effect between lignin and HDPE was shown as the selectivity of aromatic hydrocarbons decreased from 62.1 % to 15.6 %.

中文翻译：

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改性HZSM-5催化剂生物质与HDPE共热解生产芳烃

本研究以SR-Pd/Trap-HZ-5为催化剂，对生物质三种组分（纤维素、半纤维素和木质素）和HDPE的共加氢热解进行了实验。为了控制变量，我们在共加氢热解中使用相同的实验条件：Si/Al比为50，Pd负载1％，催化剂与反应物比为1：10，1MPa，400℃，反应时间1h。利用XRD、TEM、BET、NH ₃ -TPD证实催化剂合成成功；使用松木屑（PW）与HDPE共加氢热解来分析催化活性；并使用 GC/MS 表征生物质成分和 HDPE 共加氢热解产生的生物油的化学成分。结果表明，纤维素与芳烃生产具有显着的协同效应，选择性达93.3%；半纤维素具有协同作用；芳烃选择性可达75.1%；随着芳香烃的选择性从 62.1% 下降到 15.6%，木质素和 HDPE 之间显示出负协同效应。