Effects of H2S Loading Rate on the Performance of Reactive Absorption with Electrochemical Oxidation
Abstract
:1. Introduction
2. Materials and Methods
2.1. Experimental Setup
2.2. Analytical Methods
3. Model Development
3.1. Model Establishment
3.2. Numerical Analysis
4. Discussion
4.1. Model Validation
4.2. Performance Prediction
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
Nomenclature
CLS | concentration of H2S in aqueous phase (mg dm−3) |
CGS | concentration of H2S in gaseous phase (mg dm−3) |
CLN | concentration of NH3 in aqueous phase (mg dm−3) |
CGN | concentration of NH3 in gaseous phase (mg dm−3) |
QG | gas flow rate (dm3 min−1) |
VL | reactor volume (dm3) |
VG | bubble volume (dm3) |
KLaS | mass transfer coefficient of H2S (min–1) |
KLaN | mass transfer coefficient of NH3 (min–1) |
kS | zero-order kinetic constant H2S (mg dm−3 min−1) |
kN | zero-order kinetic constant of NH3 (mg dm−3 min−1) |
KI | retardation constant (mg dm−3) |
HS | Henry’s law constant of H2S (dimensionless) |
HN | Henry’s law constant of NH3 (dimensionless) |
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Parameter | Symbol | Value | Unit |
---|---|---|---|
Gas-phase flow rate | QG | 2 1 | dm3 min−1 |
Reactor volume | VL | 2 1 | dm3 |
Bubble volume | VG | 0.08 2 | dm3 |
Mass transfer coefficient of H2S | KLaS | 0.4 2 | min−1 |
Mass transfer coefficient of NH3 | KLaN | 0.0007 2 | min−1 |
Zero-order kinetic constant of H2S | kS | 1.0 2 | mg dm−3 min−1 |
Zero-order kinetic constant of NH3 | kN | 0.3 2 | mg dm−3 min−1 |
Retardation constant | KI | 0.001 2 | mg dm−3 |
Henry’s law constant of H2S | HS | 0.4 3 | dimensionless |
Henry’s law constant of NH3 | HN | 0.00695 3 | dimensionless |
Parameter | Sensitivity Index | Rank | |
---|---|---|---|
−20% | +20% | ||
KLaS | 0.2 | 5.2 | 2 |
kS | 9.4 | 6.1 | 1 |
HS | 0.7 | 2.9 | 3 |
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Kang, J.; Song, J.; Ji, H.; Yun, S.; Kim, W.; Yoo, S. Effects of H2S Loading Rate on the Performance of Reactive Absorption with Electrochemical Oxidation. Appl. Sci. 2021, 11, 4867. https://doi.org/10.3390/app11114867
Kang J, Song J, Ji H, Yun S, Kim W, Yoo S. Effects of H2S Loading Rate on the Performance of Reactive Absorption with Electrochemical Oxidation. Applied Sciences. 2021; 11(11):4867. https://doi.org/10.3390/app11114867
Chicago/Turabian StyleKang, Jeonghee, Jihyeon Song, Hyonwook Ji, Sangleen Yun, Weonjae Kim, and Sungsoo Yoo. 2021. "Effects of H2S Loading Rate on the Performance of Reactive Absorption with Electrochemical Oxidation" Applied Sciences 11, no. 11: 4867. https://doi.org/10.3390/app11114867