Microbubble shows great potential for hydrogenation reaction in fixed bed reactors (FBRs). However, the lack of understanding of the hydrodynamic behaviors of microbubble swarm in FBR limits the reactor design. In this work, a pilot-scale HiGee-aided fixed bed reactor (HFBR), including a HiGee microbubble generator (HMG) and a catalyst bed, has been developed and then applied for poly alpha olefin 4 (PAO 4) hydrogenation. An empirical correlation of Sauter mean diameter (d₃₂) of microbubbles at the inlet and outlet of catalyst bed was established. The gas holdup (φ_b) of catalyst bed with HMG was 5–10 times higher than that without HMG. Based on d₃₂ and φ_b, the effective interfacial area in HFBR was calculated as 2000–6000 m²/m³. Compared with static mixer-aided fixed bed reactor, the aromatic content of PAO 4 hydrogenated in the HFBR was 56%–69% lower, which shows bright future for industrial application.

中文翻译：

---

HiGee 辅助固定床反应器的流体动力学、传质和加氢性能

微泡在固定床反应器（FBR）中的加氢反应中显示出巨大的潜力。然而，缺乏对 FBR 中微泡群流体动力学行为的了解限制了反应器的设计。在这项工作中，开发了一种中试规模的 HiGee 辅助固定床反应器 (HFBR)，包括 HiGee 微泡发生器 (HMG) 和催化剂床，然后应用于聚 α 烯烃 4 (PAO 4) 加氢。建立了催化剂床入口和出口处微泡索特平均直径( d ₃₂ )的经验相关性。含有HMG的催化剂床的含气量( φb )比不含HMG的催化剂床高5-10倍_。根据d ₃₂和φ _b，计算出HFBR 的有效界面面积为2000-6000 m ² /m ³。与静态混合器辅助固定床反应器相比，HFBR中加氢的PAO 4 芳烃含量降低了56%~69%，具有广阔的工业应用前景。