High-gravity deoxygenation of jet fuels using rotating packed bed

Here, an unprecedented synthesis method for nickel oxide nanoparticles (NiO-NPs) was facilitated using Salvia hispanica leaf extracts with the assistance of a high gravity rotating packed bed (RPB) system that enabled fast mass transfer and molecular mixing. The synthesized nanoparticles were anchored on the surface of biodegradable chitosan nanobeads and their photocatalytic activity was evaluated by the degradation of methylene blue. Additionally, the potential biological activities of NiO-NPs in terms of antibacterial (Staphylococcus aureus and Escherichia coli for 24 hours), cytotoxicity (using the PC12 cell line for 24 and 72 hours), and antioxidant activities (based on the discoloration of the methanolic solution of DPPH) were assessed. This novel approach for NiO-NPs@Chitosan synthesis as mediated by a renewable plant extract and facilitated by a high-gravity method, led to the greener synthesis of nanoparticles with significant antibacterial and photocatalytic properties.

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Systematic approach to determination of optimum gas-phase mass transfer rate for high-gravity carbonation process of steelmaking slags in a rotating packed bed

Applied Energy ◽

10.1016/j.apenergy.2015.03.047 ◽

2015 ◽

Vol 148 ◽

pp. 23-31 ◽

Cited By ~ 14

Author(s):

Shu-Yuan Pan ◽

Elisa G. Eleazar ◽

E-E Chang ◽

Yi-Pin Lin ◽

Hyunook Kim ◽

...

Keyword(s):

Gas Phase ◽

Transfer Rate ◽

Systematic Approach ◽

Mass Transfer Rate ◽

Packed Bed ◽

High Gravity ◽

Carbonation Process ◽

Steelmaking Slags ◽

Rotating Packed Bed

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Controllable polymerization of n-butyl cyanoacrylate using a high-gravity rotating packed bed

Chemical Engineering Journal ◽

10.1016/j.cej.2019.122400 ◽

2020 ◽

Vol 379 ◽

pp. 122400 ◽

Cited By ~ 4

Author(s):

Xingzheng Liu ◽

Junsheng Jin ◽

Yueliang Chen ◽

Boting Lu ◽

Qian Sun ◽

...

Keyword(s):

Packed Bed ◽

High Gravity ◽

Rotating Packed Bed

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Preparation of Flower-Like ZnO Nanoparticles by High-Gravity Assisted Ammonia Decomposition Method and Their Photoluminescence Properties

Journal of Computational and Theoretical Nanoscience ◽

10.1166/jctn.2016.5672 ◽

2016 ◽

Vol 13 (10) ◽

pp. 7066-7073

Author(s):

Zhi-Wei Liu ◽

Xiang-Dang Song ◽

You-Zhi Liu ◽

Wei-Zhou Jiao

Keyword(s):

Particle Size ◽

Zno Nanoparticles ◽

Decomposition Method ◽

Packed Bed ◽

Ammonia Decomposition ◽

High Gravity ◽

Gravity Level ◽

Ammonia Complex ◽

Rotating Packed Bed ◽

Optimized Conditions

Zinc oxide (ZnO) nanoparticles with tunable particle size and photoluminescence (PL) properties were successfully prepared by a facile ammonia decomposition method in a rotating packed bed (RPB) reactor. The zinc-ammonia complex, generated from chemical process of zinc mineral, reacted with steam to precipitate the precursor of ZnO. It was found that both the particle size of ZnO and the precipitation rates of Zn strongly depended on the steam flow rate, high-gravity level, calcination temperature. The flower-like ZnO with primary particle size of ~45 nm had improved PL performance, which further confirmed the intensification of RPB reactor. Moreover, the results showed that the precipitation rate of Zn could reach up to 98% under the optimized conditions. It was believed that RPB reactors with well mass transfer and mixing performances, short preparation time and low energy consumption would be a promising device for the continuous preparation of nano-ZnO materials.

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