Na2WO4/Mn/SiO2 Catalyst Pellets for Upgrading H2S-Containing Biogas via the Oxidative Coupling of Methane
Abstract
:1. Introduction
2. Results and Discussion
2.1. Preparation of Catalyst Pellets and Their Physical Properties
2.2. Biogas Upgrading Using Catalyst Pellets
2.3. Catalyst Characterization
2.3.1. O2 Temperature-Programmed Desorption (O2 TPD)
2.3.2. Powder X-ray Diffraction (Powder XRD)
2.3.3. Electronic Structures
2.4. Reaction Condition Optimization
3. Experimental Section
3.1. Materials
3.2. Catalyst Preparation
3.2.1. Na2WO4/Mn/SiO2 (NWM) Catalyst
3.2.2. Catalyst Pellets
3.3. Catalytic Activity Measurement
3.4. Catalyst Characterization
3.5. Calculation of Higher Heat Values (HHV)
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Catalyst | Fracture Strength (MPa) | BET Surface Area (m2/g) |
---|---|---|
NWM (Powder) | n.a. | 3 |
Using organic binder of MC | ||
N(8)M(0.5) | 1.45 | 2 |
N(8)M(0.5)P(1.5) | 2.79 | 2 |
N(80)M(5)A(5) | 0.54 | 8 |
N(8)M(0.5)Mo(1.5) | 0.19 | 2 |
N(8)M(0.5)Mg(1.5) | 0.42 | 2 |
N(8)M(0.5)Mn(1.5) | 0.40 | 1 |
Using inorganic binder of P25 | ||
N(8)M(0.5)P(1.5) | 2.79 | 2 |
N(8)V(0.5)P(1.5) | 2.65 | 2 |
N(8)S(0.5)P(1.5) | 2.52 | 1 |
Catalyst | Fracture Strength (MPa) | BET Surface Area (m2/g) |
---|---|---|
N(8)M(0.5) | 1.45 | 2 |
M(8)M(0.5)P(0.75) | 1.60 | 2 |
N(8)M(0.5)P(1.5) | 2.79 | 2 |
N(8)M(0.5)P(3) | 2.57 | 3 |
N(8)M(0.5)P(6) | 2.23 | 3 |
N(8)P(1.5) | 0.29 | 1 |
N(8)M(0.25)P(1.5) | 1.72 | 2 |
N(8)M(0.5)P(1.5) | 2.79 | 2 |
N(8)M(1)P(1.5) | 0.43 | 2 |
N(8)M(2)P(1.5) | 0.29 | 2 |
Catalyst | Methane Conversion (%) | C2+ Selectivity (%) b | Olefin Selectivity (%) c | C2+ Yield (%) b | Olefin/Paraffin (mol/mol) d | O2 Conversion (%) | HHV (MJ/Nm3) e |
---|---|---|---|---|---|---|---|
NWM (Powder) | 8.20 | 63.5 | 28.5 | 5.09 | 0.82 | 66.7 | 40.6 |
N(8)M(0.5) | 7.85 | 51.0 | 21.0 | 3.99 | 0.70 | 65.4 | 40.4 |
N(8)M(0.5)P(1.5) | 10.0 | 83.9 | 44.4 | 8.39 | 1.12 | 77.8 | 41.0 |
N(8)M(0.5)A(1.5) | 3.43 | 49.0 | 16.7 | 1.68 | 0.52 | 59.2 | 40.1 |
N(8)M(0.5)Mo(1.5) | 6.00 | 33.3 | 11.0 | 1.95 | 0.50 | 56.6 | 40.1 |
N(8)M(0.5)Mg(1.5) | 7.76 | 28.9 | 10.5 | 2.19 | 0.58 | 65.9 | 40.2 |
N(8)M(0.5)Mn(1.5) | 8.63 | 71.7 | 34.9 | 6.19 | 0.95 | 70.6 | 40.7 |
Catalyst | Methane Conversion (%) | C2+ Selectivity (%) b | Olefin Selectivity (%) c | C2+ Yield (%) b | Olefin/Paraffin (mol/mol) d | O2 Conversion (%) | HHV (MJ/Nm3) e |
---|---|---|---|---|---|---|---|
N(8)M(0.5) | 7.85 | 51.0 | 21.0 | 3.99 | 0.70 | 65.4 | 40.4 |
M(8)M(0.5)P(0.75) | 9.51 | 81.5 | 42.6 | 7.75 | 1.10 | 79.2 | 40.9 |
N(8)M(0.5)P(1.5) | 10.0 | 83.9 | 44.4 | 8.39 | 1.12 | 77.8 | 41.0 |
N(8)M(0.5)P(3) | 11.5 | 77.2 | 41.9 | 8.80 | 1.18 | 85.4 | 41.1 |
N(8)M(0.5)P(6) | 12.8 | 73.6 | 40.6 | 9.36 | 1.23 | 95.5 | 41.2 |
N(8)P(1.5) | 5.72 | 67.7 | 29.0 | 3.83 | 0.75 | 65.7 | 40.4 |
N(8)M(0.25)P(1.5) | 10.3 | 80.3 | 42.4 | 8.26 | 1.12 | 86.8 | 41.0 |
N(8)M(0.5)P(1.5) | 10.0 | 83.9 | 44.4 | 8.39 | 1.12 | 77.8 | 41.0 |
N(8)M(1)P(1.5) | 11.5 | 75.2 | 40.7 | 8.66 | 1.18 | 78.2 | 41.1 |
N(8)M(2)P(1.5) | 10.7 | 73.1 | 38.2 | 7.81 | 1.09 | 74.3 | 41.0 |
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Gu, S.; Choi, J.-W.; Suh, D.J.; Yoo, C.-J.; Choi, J.; Ha, J.-M. Na2WO4/Mn/SiO2 Catalyst Pellets for Upgrading H2S-Containing Biogas via the Oxidative Coupling of Methane. Catalysts 2021, 11, 1301. https://doi.org/10.3390/catal11111301
Gu S, Choi J-W, Suh DJ, Yoo C-J, Choi J, Ha J-M. Na2WO4/Mn/SiO2 Catalyst Pellets for Upgrading H2S-Containing Biogas via the Oxidative Coupling of Methane. Catalysts. 2021; 11(11):1301. https://doi.org/10.3390/catal11111301
Chicago/Turabian StyleGu, Sangseo, Jae-Wook Choi, Dong Jin Suh, Chun-Jae Yoo, Jungkyu Choi, and Jeong-Myeong Ha. 2021. "Na2WO4/Mn/SiO2 Catalyst Pellets for Upgrading H2S-Containing Biogas via the Oxidative Coupling of Methane" Catalysts 11, no. 11: 1301. https://doi.org/10.3390/catal11111301