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Détail de l'auteur
Auteur Shuai Wang
Documents disponibles écrits par cet auteur
Affiner la rechercheEnhancement effects of gas components on NO removal by calcium hydroxide / Guoqing Chen in Industrial & engineering chemistry research, Vol. 49 N° 3 (Fevrier 2010)
[article]
in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1450–1456
Titre : Enhancement effects of gas components on NO removal by calcium hydroxide Type de document : texte imprimé Auteurs : Guoqing Chen, Auteur ; Jihui Gao, Auteur ; Shuai Wang, Auteur Année de publication : 2010 Article en page(s) : pp. 1450–1456 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Enhancement Effects of Gas Components on NO Removal by Calcium Hydroxide Résumé : The NO absorption characteristic of calcium hydroxide was investigated in a fixed bed reactor system in the presence of SO2. The effect of O2 and H2O on NO removal was discussed in or without the presence of SO2. When SO2 was excluded from the flue gas, NO removal was slight. The presence of SO2 in the flue gas could enhance NO removal only when both of O2 and H2O were also present. The essence of enhancement of SO2 on NO removal was accelerating the conversion of NO to NO2. The desulfurization reaction product could not oxidize NO to NO2. The bed height experiment revealed that the multimolecular intermediate species, which could decomposed in to NO2, was not formed from the adsorption of NO, H2O, and O2 on the surface of absorbent. The possible reaction path proposed in paper is that there may be some unstable intermediate species formed from the desulfurization reaction, which can enhance the conversion of NO to NO2. The presence of H2O can enhance the presence of unstable intermediate. According to analysis, the possible unstable intermediate is the OH radical. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900838f [article] Enhancement effects of gas components on NO removal by calcium hydroxide [texte imprimé] / Guoqing Chen, Auteur ; Jihui Gao, Auteur ; Shuai Wang, Auteur . - 2010 . - pp. 1450–1456.
Industrial chemistry
Langues : Anglais (eng)
in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1450–1456
Mots-clés : Enhancement Effects of Gas Components on NO Removal by Calcium Hydroxide Résumé : The NO absorption characteristic of calcium hydroxide was investigated in a fixed bed reactor system in the presence of SO2. The effect of O2 and H2O on NO removal was discussed in or without the presence of SO2. When SO2 was excluded from the flue gas, NO removal was slight. The presence of SO2 in the flue gas could enhance NO removal only when both of O2 and H2O were also present. The essence of enhancement of SO2 on NO removal was accelerating the conversion of NO to NO2. The desulfurization reaction product could not oxidize NO to NO2. The bed height experiment revealed that the multimolecular intermediate species, which could decomposed in to NO2, was not formed from the adsorption of NO, H2O, and O2 on the surface of absorbent. The possible reaction path proposed in paper is that there may be some unstable intermediate species formed from the desulfurization reaction, which can enhance the conversion of NO to NO2. The presence of H2O can enhance the presence of unstable intermediate. According to analysis, the possible unstable intermediate is the OH radical. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900838f Numerical simulation of fluid dyanmics of a riser / Zhenhua Hao in Industrial & engineering chemistry research, Vol. 49 N° 8 (Avril 2010)
[article]
in Industrial & engineering chemistry research > Vol. 49 N° 8 (Avril 2010) . - pp. 3585–3596
Titre : Numerical simulation of fluid dyanmics of a riser : influence of particle rotation Type de document : texte imprimé Auteurs : Zhenhua Hao, Auteur ; Shuai Wang, Auteur ; Huilin Lu, Auteur Année de publication : 2010 Article en page(s) : pp. 3585–3596 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Numerical Simulation Fluid Dynamics Particle Rotation Résumé : Flow behavior of gas and particles in a 2-D riser is simulated using a gas−solid two-fluid model with consideration of the effect of particle rotation. The particle−particle interactions are simulated from the kinetic theory for flow of dense, slightly inelastic, slightly rough spheres proposed by Lun (Lun, C. K. K. Kinetic theory for granular flow of dense, slightly inelastic, slightly rough sphere. J. Fluid Mech. 1991, 233, 539−559). Inelastic binary collisions of particles with normal and tangential restitution coefficients are considered. The modified expressions for energy dissipation and viscosities of particles are proposed as a function of tangential and normal restitution coefficients of particles. The present model is evaluated by the measured solids concentration and velocities of Miller and Gidaspow (Miller, A.; Gidaspow. D. Dense, vertical gas-solid flow in a pipe. AIChE J. 1992, 38, 1801−1815), and the measured solids concentration, mass flux, and pressure drop of Knowlton et al. (Knowlton, T.; Geldart, D.; Matsen, J.; King, D. Comparison of CFB hydrodynamic models. PSRI challenge problem. Presented at the Eighth International Fluidization Conference, Tours, France, May 1995) in the risers. Computed profiles of particles are in agreement with the experimental measurements. The simulated energy dissipation, granular temperature, viscosity, and thermal conductivity of particles exhibit nonmonotonic tangential restitution coefficient dependences due to the energy losses resulting from particle collisions. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9019243 [article] Numerical simulation of fluid dyanmics of a riser : influence of particle rotation [texte imprimé] / Zhenhua Hao, Auteur ; Shuai Wang, Auteur ; Huilin Lu, Auteur . - 2010 . - pp. 3585–3596.
Industrial Chemistry
Langues : Anglais (eng)
in Industrial & engineering chemistry research > Vol. 49 N° 8 (Avril 2010) . - pp. 3585–3596
Mots-clés : Numerical Simulation Fluid Dynamics Particle Rotation Résumé : Flow behavior of gas and particles in a 2-D riser is simulated using a gas−solid two-fluid model with consideration of the effect of particle rotation. The particle−particle interactions are simulated from the kinetic theory for flow of dense, slightly inelastic, slightly rough spheres proposed by Lun (Lun, C. K. K. Kinetic theory for granular flow of dense, slightly inelastic, slightly rough sphere. J. Fluid Mech. 1991, 233, 539−559). Inelastic binary collisions of particles with normal and tangential restitution coefficients are considered. The modified expressions for energy dissipation and viscosities of particles are proposed as a function of tangential and normal restitution coefficients of particles. The present model is evaluated by the measured solids concentration and velocities of Miller and Gidaspow (Miller, A.; Gidaspow. D. Dense, vertical gas-solid flow in a pipe. AIChE J. 1992, 38, 1801−1815), and the measured solids concentration, mass flux, and pressure drop of Knowlton et al. (Knowlton, T.; Geldart, D.; Matsen, J.; King, D. Comparison of CFB hydrodynamic models. PSRI challenge problem. Presented at the Eighth International Fluidization Conference, Tours, France, May 1995) in the risers. Computed profiles of particles are in agreement with the experimental measurements. The simulated energy dissipation, granular temperature, viscosity, and thermal conductivity of particles exhibit nonmonotonic tangential restitution coefficient dependences due to the energy losses resulting from particle collisions. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9019243