Optimization Conditions Research of Dual-Alkali FGD Process in a Wet Scrubber

Abstract:

Based on the microscope phase-field model，the evolution of atom morphology, the long range order(lro) parameter and concentration can be gotten, and atomic clustering and ordering during the precipitation process of Ni-Cr-Al alloy could be obtained. The Ni-14at.%Cr-15.5at.%Al alloy is studied and the temperature of precipitation are 973K. It was showed that the ordering of both Al and Cr atoms take place simultaneously during the precipitation process of Ni-Al-Cr alloy, Cr atoms transfer to the boundaries of L1₂ phases, the domain of rich Cr atoms are formed. At the boundaries of L1₂ phases, Cr atoms may substitute the Al sublattice, and the D0₂₂ phases are formed.

• Periodical: Advanced Materials Research (Volumes 233-235)
• Pages: 3047-3056
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.233-235.3047
• Online since: May 2011
• Authors: K.G. Mbango Mbida, Cun Yi Song, Guan Qin Chang, Li Dong Zhang, Kun Guo
• Keywords: Desulfurization Efficiency, Dual Alkali Process, Operating Main Parameters

References

[1] P.S. Nolan, K.E. Redinger, G.T. Amrhein, G.A. Kudlac, Demonstration of additive use for enhanced mercury emissions control in wet FGD systems, Fuel Process. Technol. 85 (2004) 587–600.

DOI: 10.1016/j.fuproc.2003.11.009

[2] H.G. Nygaard, S. Kiil, J.E. Johnsson, et al., Full-scale measurements of SO2 gas phase concentrations and slurry compositions in a wet flue gas desulfurization spray absorber, Fuel 83 (2004) 1151–1164.

DOI: 10.1016/j.fuel.2003.12.007

[3] D.S. Jin, B.R. Deshwal, Y.S. Park, H.Y. Lee. Simultaneous removal of SO2 and NO by wet scrubbing using aqueous chlorine dioxide solution, J. Hazard. Mater. 135 (2006) 412–417.

DOI: 10.1016/j.jhazmat.2005.12.001

[4] Trzepierczynska I, Gostomczyk J, Mieczyslaw A. Scaling and Plugging Problems in Wet FGD Methods [J]. Environ. Prot. Eng., 1996, 22(3): 53−63.

[5] Dawson C W. Ontario Hydro's Flue Gas Desulphurization Program and Its Limestone Dual-alkali Technology [J]. Inst. Chem. Eng. Symposium Series (C), 1991, 123: 25−29.

[6] Hower J C, Graham U M, Wong A S, et al. Influence of Flue-gas Desulfurization Systems on Coal Combustion By-product Quality at Kentucky Power Stations Burning High-sulfur Coal [J]. Waste Manage., 1998, 17(8): 523−533.

DOI: 10.1016/s0956-053x(97)10060-5

[7] Wang K H, Biolchini R J, Legatski K L. Sodium−Limestone Double Alkali Flue Gas Desulfurization Method [P]. US Pat.: 4 410 500, 1983−10−18.

[8] Brady J D, Legatski L K. Process for Removing Sulfur Oxides from Gas Streams [P]. US Pat.: 3 989 797, 1976−11−02.

[9] Pike D A. Process for Removal of Sulfur Dioxide from Gas Streams [P]. US Pat.: 4 313 924, 1982−02−02.

[10] MO Jian-song, Wu Zhong-biao, CHENG Chang-jie, LI Fu-cai, GUAN BAO-hong, ZHAO Wei-rong. Experimental and theoretical studies on Desulfurization Efficiency of Dual-alkali FGD System in a RST Scrubber (1. Department of Environmental Engineering, Zhejiang University, Hanzhou, Zhejiang 310027, China; 2. Zhejiang Tianlan Desulfurization and Dust-removal Co.Ltd., Hanzhou, Zhejiang 310012, China)

DOI: 10.35812/cellulosechemtechnol.2022.56.17

[11] Pasiuk-Bronikowska W, Rudzinski K J. Absorption of SO2 into Aqueous Systems [J]. Chem. Eng. Sci., 1991, 46(9): 2281−2285.

DOI: 10.1016/0009-2509(91)85126-i

[12] David R L. Handbook of Physics and Chemistry, 3rd Electronic Edition [M]. FL: CRC Press LLC, 2000. 13 (section 8).

[13] CHEN Lian-fang, Xu XI-ren, MA chun- yuan, Zhou Shenjie. How to Choose Appropriate Liquid/Gas ratio for Double-alkali FGD Process.

[14] Yi Zhong, Xiang Gao, Wang Huo, Zhong-yang Luo, Ming-jiang Ni, Ke-fa Cen. A model for performance optimization of wet flue gas desulfurization systems of power plants.

DOI: 10.1016/j.fuproc.2008.04.004

[15] TONG Zhiquan, CHEN Zhaoqiong, PENG Zhaohui (Department of Environmental Engeering, Xiangtan University, Xiangtan 411105. The method of Ca-Ca double alkali desulfurization and its application in Industry.

[16] Michel Roustan. Transferts Gas-Liquide dans les procédés de traitement des eaux et des effluents gazeux (Génie des procédés de l'Environnement.

DOI: 10.51257/a-v1-j3952

[17] Kohl A L, Riesenfeld F C. Gas Purification[M] (Third Edition) . Gulf Publishing Company, 1979. 278 – 302

[18] Stern C.Air Pollution Control Engineering of Air Pollution[ M] (Third Edition) . Volume (,Academic Press, 1977. 411 – 500). Écouter Lire phonétiquement Dictionnaire - Afficher le dictionnaire 1. pronom 1. it 2. that