Green and efficient sulfur dioxide removal using hydrogen peroxide in rotating packed bed reactor: Modeling and experimental study

Dong, Yu-Ning; Chen, Wen-Cong; Zhang, Liangliang; Sun, Baochang; Zou, Hai‐Kui; Luo, Yong; Chu, Guang‐Wen; Chen, Jianfeng

doi:10.1016/j.ces.2021.116467

Cited by 19 publications

(11 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been demonstrated that the mass transfer coefficient was increased by 1–3 orders of magnitude compared with conventional packed beds, 1 and this is because RPBs can split the injected liquid into microscale or even nanoscale films, filaments, and droplets by the shear effect of the rotating porous packing 2–4 . At present, RPBs have been extensively used in many chemical industrial processes, for example, aroma absorption, 5,6 removal of sulfur dioxide, 7 NO x , 8 synthesis of hierarchical ZSM‐5 zeolite, 9 CuO/Cu 2 O/Cu nanoparticles, 10 nano‐CaCO 3 11 . RPBs are also a type of potential candidate for removing CO 2 from natural gas, especially for the application on the floating production storage and offloading system for liquefied natural gas (LNG‐FPSO).…”

Section: Introductionmentioning

confidence: 99%

Modeling of gas–liquid flow in a rotating packed bed using an Eulerian multi‐fluid approach

Zhang

Xie²,

et al. 2022

AIChE Journal

View full text Add to dashboard Cite

Rotating packed beds (RPBs) are ideal candidates for CO2 removal from offshore natural gas due to their good mass transfer performance and significant volume savings. This article proposes an Eulerian multi‐fluid approach to simulate the gas–liquid flow in RPBs. Three new multiphase drag force models are constructed based on single‐phase drag force models for wire mesh packings. Based on the Eulerian multi‐fluid approach, a new RPB simulation framework is developed. The predicted results using the new simulation framework with the new drag force models are compared with the experimental data. When using the Kołodziej model and the modified Kołodziej model, the predicted overall liquid holdup shows good agreement with the experimental data with errors less than 20%. In addition, the pressure drop predicted by these three models are reasonable compared with the experimental data. This work lays a foundation for RPB simulation of gas–liquid flow using Eulerian multi‐fluid approach.

show abstract

Section: Introductionmentioning

confidence: 99%

Modeling of gas–liquid flow in a rotating packed bed using an Eulerian multi‐fluid approach

Zhang

Xie²,

et al. 2022

AIChE Journal

View full text Add to dashboard Cite

show abstract

“…As the rotating speed increases, the renewal frequency of liquid droplets increases, and more – OOH can be transported to the surface, greatly enhancing the mass-transfer-reaction process of the HiGee-AOP . Additionally, owing to the augmentation of the shearing force in the packing at a high rotation speed, more liquid is immediately broken into tiny droplets, enlarging the gas–liquid contact area to intensify the process . However, the removal efficiency and mass transfer coefficient level off when the rotating speed is higher than 1200 rpm.…”

Section: Resultsmentioning

confidence: 99%

“…A theoretical mass-transfer-reaction model is carried out based on Higbie’s penetration theory and reaction mechanism. The basic assumptions applied to derive the model are as follows: The majority of the liquid in the RPB is in the form of a spherical droplet. , The volatilization of the absorbent is ignored, and inert gas nitrogen (N 2 ) is not dissolved in the alkaline H 2 O 2 solution. The flow rate of the inert gas is considered constant in the NO removal process. The reaction between NO and – OOH is exothermic and irreversible, obeying a pseudo-first-order reaction mechanism. The rotor in the RPB consists of 100 packing layers.…”

Section: Development Of the Hybrid Fuzzy Modelmentioning

confidence: 99%

Fuzzy-Logic-Based Modeling and Control for HiGee-AOP Nitric Oxide Attenuation with a Complex Gas–Liquid Mass-Transfer-Reaction Process

Sun

Liu

et al. 2022

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The complex flows under high gravity in intricate advanced oxidation reactions expose a high-gravity advanced oxidation process (HiGee-AOP) modeling and control to uncertainty. Existing methods based on conservation equations cannot describe such a process with sufficient accuracy because of the mismatch between the assumptions and actual system behavior. Here, we propose a fuzzy-logic-based modeling and control scheme for a HiGee-AOP for nitric oxide (NO) attenuation. A hybrid fuzzy model is presented based on the theoretical model and a collection of if−then rules describing the difference between the theoretical model and the real system. Subsequently, the model serves as the internal model, associated with the fuzzy control rules illustrating the recommended actions under various conditions to construct the adaptive fuzzy controller. The results show that the modelsimulated values are in good agreement with the experimental data, with a deviation of −0.81 ± 15.02%, and that the controller has good tracking performance.

show abstract

“…Higee devices represented by a rotating packed bed (RPB) are efficient gas–liquid contactors, which use centrifugal force instead of gravity to enhance gas–liquid mass transfer. Compared with conventional packed columns, Higee devices give rise to the higher effective mass transfer area ( a e ) and mass transfer coefficient, and their applications in absorption, − distillation, and wastewater treatment have been widely explored.…”

Section: Introductionmentioning

confidence: 99%

Study on the Effective Mass Transfer Area and the Local Gas-Side Mass Transfer Coefficient in a Rotor–Stator Reactor

Xin

Wang

Liu

et al. 2022

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

To increase the applicability of a rotor−stator reactor (RSR) in gas−liquid mass transfer processes, the effective mass transfer area (a e ) and the local gas-side mass transfer coefficient (k G ) in the RSR were measured by employing a NaOH solution to absorb CO 2 and SO 2 , where gas radial velocity is required to be large enough to ignore the gas-side mass transfer resistance in determination of a e . The effects of operating conditions and stator rings on these mass transfer parameters were investigated. The experimental results showed that a e and k G in the RSR with stator rings were higher than those in the RSR without stator rings by 17−30 and 1−9%, respectively. a e in the RSR with stator rings was 3.4% lower than that in a rotating packed bed, but k G in such RSR was higher than that in the rotating packed bed by 78.6%, suggesting that the RSR has great potential for industrial applications in the processes controlled by gas-side mass transfer.

show abstract

Green and efficient sulfur dioxide removal using hydrogen peroxide in rotating packed bed reactor: Modeling and experimental study

Cited by 19 publications

References 51 publications

Modeling of gas–liquid flow in a rotating packed bed using an Eulerian multi‐fluid approach

Modeling of gas–liquid flow in a rotating packed bed using an Eulerian multi‐fluid approach

Fuzzy-Logic-Based Modeling and Control for HiGee-AOP Nitric Oxide Attenuation with a Complex Gas–Liquid Mass-Transfer-Reaction Process

Study on the Effective Mass Transfer Area and the Local Gas-Side Mass Transfer Coefficient in a Rotor–Stator Reactor

Contact Info

Product

Resources

About