Experimental investigation of effective gas-liquid specific interfacial area in a rotor-stator reactor

Li, Yingwen; Si, Jianmeng; Arowo, Moses; Liu, Zhibang; Sun, Baochang; Song, Yongbo; Chu, Guang‐Wen; Shao, Lei

doi:10.1016/j.cep.2020.107801

Cited by 8 publications

(8 citation statements)

References 23 publications

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“…Table presents the regression parameters of the fitted a e in RSRs with and without stator rings in eq . It can be seen that a e in the literature was more susceptible to Re G ( d = 0.371), implying that a low gas flow rate may result in inaccurate a e because the gas-side mass transfer resistance cannot be ignored under such conditions. Figure shows the parity plot that presents the predicted and experimental a e .…”

Section: Resultsmentioning

confidence: 99%

“…In addition, a e in the RSR was obtained using a 1 mol•L −1 NaOH−10% CO 2 system. 23 However, gas radial velocity (u G ) was as low as 0.007−0.02 m• s −1 in the above work, suggesting that the gas-side mass transfer resistance might not be ignored and the resulting a e might be inaccurate.…”

Section: Introductionmentioning

confidence: 81%

“…However, the studies on the gas-side mass transfer characteristics of the RSR are scarce, and the unique structure of the RSR can result in stronger gas turbulence and is expected to bring about a better gas-side mass transfer effect than an RPB. In addition, a e in the RSR was obtained using a 1 mol·L –1 NaOH–10% CO 2 system . However, gas radial velocity ( u G ) was as low as 0.007–0.02 m·s –1 in the above work, suggesting that the gas-side mass transfer resistance might not be ignored and the resulting a e might be inaccurate.…”

Section: Introductionmentioning

confidence: 91%

“…Four layers of stator rings consist of pins fixed on the cover cap concentrically, as shown in Figure b. The specifications of the RSR are shown in Table , and the structure was also described in our previous papers. ,, An RPB with specifications ( r 1 = 0.02 m; r 2 = 0.06 m; z = 0.015 m) similar to those of the RSR was employed for comparison experiments. The RPB was used in our previous studies. , …”

Section: Experimental Sectionmentioning

confidence: 99%

“…It is crucial to measure a e accurately in the calculation of k G because errors in the a e value will propagate into their determination . The most common method for determining a e is chemical absorption with the NaOH–CO 2 system, and eq has been employed for the calculation of a e in most studies − However, eq is based on the following two assumptions…”

Section: Introductionmentioning

confidence: 99%

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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.

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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.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 91%