In this paper, we present a parallelized microfluidic device with improved ladder–tree distributors for the scaled-up production of monodisperse microspheres. Owing to the improved distribution form comprising a ladder distributor in the center and tree distributors around the circumference, the uniformity of the generated droplets for our device was improved by 32.9% and 86.1% compared to those achieved in devices with conventional tree and ladder distributors, respectively, in the final production stage with 32 droplet generators, indicating the potential of our device for further scale-up while maintaining the monodispersity of the generated droplets. The effect of the 2D scale-up of our device was investigated by varying the continuous-phase flow rate and viscosity. Using our device, γ-Al₂O₃ microspheres with a diameter of 598.1 μm and a CV of 2.58%, as catalyst support for microreactors, were continuously synthesized at high production rate. The nickel-based catalyst prepared from γ-Al₂O₃ microspheres with large specific surface area and pore volume had an average NiO size of 14 nm, which was 60.9% of that supported on industrial support. The CO methanation conversion of the Ni@Al₂O₃ microspheres was 1.7 times larger than Ni@Al₂O₃ industrial support at 140 °C.

在本文中，我们提出了一种具有改进的梯形树分布器的并行微流体装置，用于放大生产单分散微球。由于改进了分布形式，包括中心的梯形分布器和周围的树形分布器，与传统树形和梯形分布器的设备相比，我们的设备产生的液滴的均匀性提高了 32.9% 和 86.1%，分别在具有 32 个液滴发生器的最终生产阶段，表明我们的设备在保持生成液滴的单分散性的同时进一步扩大规模的潜力。通过改变连续相流速和粘度来研究我们设备的 2D 放大效果。使用我们的设备，γ-Al ₂ O ₃以高产率连续合成直径为598.1 μm、CV为2.58%的微球作为微反应器的催化剂载体。由比表面积和孔容大的γ-Al ₂ O ₃微球制备的镍基催化剂的NiO平均粒径为14 nm，是工业载体负载量的60.9%。Ni@Al ₂ O ₃微球的CO甲烷化转化率是Ni@Al ₂ O ₃工业载体在140℃下的1.7倍。