Experimental Research on Heterogeneous N2O Decomposition with Ash and Biomass Gasification Gas
Abstract
:1. Introduction
2. Experimental Devices and Method
SiO2 | Al2O3 | Fe2O3 | CaO | MgO | TiO2 | CaSO4 | P2O5 | K2O | Na2O | |
---|---|---|---|---|---|---|---|---|---|---|
Circulating ash | 33.22 | 13.91 | 6.66 | 11.59 | 1.59 | 1.97 | 31.88 | 0.18 | 1.01 | 0.30 |
: | mole of N2O at the reactor outlet, mol; |
: | mole of N2O at the reactor inlet, mol; |
: | mole of NO at the reactor outlet, mol; |
: | mole of NO2 at the reactor outlet, mol; |
: | flow of N2O inlet, mL/min; |
: | time of collecting gas in sample bag, min; |
: | volume of collecting gas in sample bag, mL; |
: | concentration of NO in exhaust gas, ppm; |
: | concentration of NO in exhaust gas, ppm. |
- : volume of biomass derived gas, mL;
- : volume of flue gas, mL.
3. Results and Discussion
3.1. Influence of Biomass Gas Components without Oxygen in Flue Gas
3.2. Influence of Biomass Gas Components with Oxygen Content in Flue Gas
3.3. Influence of Ash and Metal Oxides on Heterogenous N2O Decomposition
4. Conclusions
- (1)
- At the reaction temperature of 900 °C, the promoting effect order of CO, H2 and CH4 as biomass gas components on N2O decomposition is: H2 > CO > CH4.
- (2)
- Under the reductive conditions, the positive effect of H2 is greater than that of CH4 and CO on the conversion of heterogenous N2O with the circulating ash as bed material, whereas under oxidative conditions with the same bed material, the impact of CH4is proven to be much stronger than that of H2 or CO.
- (3)
- With four different typical solid oxides and the circulating ash as bed material, the catalytic effect of CaO on the conversion of N2O is more effective than that of Fe2O3, Al2O3 and SiO2.
Acknowledgments
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Zhang, J.; Yang, Y.; Hu, X.; Dong, C.; Lu, Q.; Qin, W. Experimental Research on Heterogeneous N2O Decomposition with Ash and Biomass Gasification Gas. Energies 2011, 4, 2027-2037. https://doi.org/10.3390/en4112027
Zhang J, Yang Y, Hu X, Dong C, Lu Q, Qin W. Experimental Research on Heterogeneous N2O Decomposition with Ash and Biomass Gasification Gas. Energies. 2011; 4(11):2027-2037. https://doi.org/10.3390/en4112027
Chicago/Turabian StyleZhang, Junjiao, Yongping Yang, Xiaoying Hu, Changqing Dong, Qiang Lu, and Wu Qin. 2011. "Experimental Research on Heterogeneous N2O Decomposition with Ash and Biomass Gasification Gas" Energies 4, no. 11: 2027-2037. https://doi.org/10.3390/en4112027
APA StyleZhang, J., Yang, Y., Hu, X., Dong, C., Lu, Q., & Qin, W. (2011). Experimental Research on Heterogeneous N2O Decomposition with Ash and Biomass Gasification Gas. Energies, 4(11), 2027-2037. https://doi.org/10.3390/en4112027