Abstract Catalytic cracking of Swida wilsoniana oil over non-catalyst and various Cu-modified ZSM-5 catalysts doped with different concentration of Cu (0, 5, 10, 20 and 30 wt%) was studied. The physicochemical properties of the prepared catalysts were investigated by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) model, Transmission electron microscopy (TEM) and temperature-programmed desorption of ammonia (NH 3 -TPD) analysis. Results showed that the introduction of Cu did not change the crystalline structure of ZSM-5 and CuO might deposit on the surface or inside the pores. The numbers of ZSM-5 total acidic sites were increased after it was loaded with 5 wt% and 10 wt% concentration of Cu. The overall hydrocarbon biofuels yields obtained from Cu-modified ZSM-5 catalysts were improved relative to parent ZSM-5. Determination of composition of the hydrocarbon biofuels showed that the hydrocarbon fractions were the main components produced. The optimum Cu concentration used for ZSM-5 modification was 10 wt%, which obtained the highest hydrocarbon biofuels yield (68.20 wt%) and percentage of hydrocarbon fractions content (89.07 wt%). The reuse of Cu-modified ZSM-5 catalysts results showed acceptable levels of reusability after three times regeneration. In addition, the physical properties of the Cu-modified ZSM-5 catalysts produced hydrocarbon biofuels were improved compared to non-catalytic cracking of S. wilsoniana oil. This work showed that the newly developed 10 wt% concentration Cu-modified ZSM-5 was an efficient catalyst for cracking of S. wilsoniana oil for the production of hydrocarbon biofuels.

中文翻译：

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铜改性 ZSM-5 沸石催化裂化 Swida wilsonana 油用于烃类生物燃料

摘要 研究了掺入不同浓度 Cu（0、5、10、20 和 30 wt%）的非催化剂和各种 Cu 改性 ZSM-5 催化剂对 Swida wilsonana 油的催化裂化。通过X射线衍射（XRD）、Brunauer-Emmett-Teller（BET）模型、透射电子显微镜（TEM）和氨程序升温脱附（NH 3 -TPD）分析研究了所制备催化剂的理化性质。结果表明，Cu 的引入没有改变 ZSM-5 的晶体结构，CuO 可能沉积在表面或孔隙内部。ZSM-5 负载 5 wt% 和 10 wt% 浓度的 Cu 后，总酸性位点的数量增加。相对于母体 ZSM-5，从 Cu 改性的 ZSM-5 催化剂获得的总烃类生物燃料产率有所提高。烃类生物燃料组成的测定表明烃馏分是产生的主要成分。用于 ZSM-5 改性的最佳铜浓度为 10 wt%，获得最高的碳氢生物燃料产率 (68.20 wt%) 和碳氢馏分含量百分比 (89.07 wt%)。Cu 改性 ZSM-5 催化剂的重复使用结果表明，在 3 次再生后可重复使用。此外，与 S. wilsonana 油的非催化裂化相比，Cu 改性的 ZSM-5 催化剂生产的碳氢生物燃料的物理性质得到了改善。这项工作表明，新开发的 10 wt% 浓度的 Cu 改性 ZSM-5 是裂化 S. wilsonana 油以生产碳氢生物燃料的有效催化剂。