Influence of Gas-Gas Heater on Wet Flue Gas Desulfuration

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Abstract:

Material balance calculation was adopted to a wet flue gas desulfurization (WFGD) system for exploring impacts of gas-gas heater (GGH). Effects of GGH on flue and water consumption were analyzed. Results showed that inlet flue temperature of desulfurization tower reduced by 3.4 °C at 100% load after installation of GGH. Exhausted gas temperature of system increased by 34.9°C. The heat release of original flue in desulfurization tower reduced by 43.72%. Plume rise height was significantly improved. Water evaporation in desulfurization tower declined by 42.07%.Amount of addendum water reduced by 39.06%, and water vapor carried by flue decreased by 19.78% at the outlet of WFGD. Therefore, operation condition of flue emission is improved and water consumption decreases with GGH.

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Periodical:

Advanced Materials Research (Volumes 986-987)

Pages:

92-96

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Online since:

July 2014

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[1] XIAO Haiping, ZHANG Qian, SUN Baomin. Analysis on blockage mechanism of Gas-Gas Heater in wet flue gas desulfurization systems[J]. Journal of Chinese Society of Power Engineering, 2011, 31(1): 53-57.

Google Scholar

[2] SUN Zhichun, XIAO Haiping, SUN Baomin. Experimental study on performance optimization of horizontal mist eliminator in Taishan power plant[J]. Journal of Chinese Society of Power Engineering, 2010, 30(11): 889-894.

Google Scholar

[3] ZENG Tinghua, YANG Hua, LISO Yongjin, etal. Wet FGD system commissioning, testing and operation[M]. BeiJing: China Electric Power Press, (2008).

Google Scholar

[4] ZHONG Yi, GAO Xiang, HUO Wang, etal. Analysis of scaling on Gas-Gas Heater surfacesof wet flue gas desulfurization systems[J]. Journal of Power Engineering, 2008, 28(2): 275-278.

Google Scholar

[5] LV Ming, ZHAO Zhijun, YIN Guoqiang, etal. Achieving water-saving purpose by reducing in-let gas temperatures in wet flue gas desulfurization process[J]. Journal of Chinese Society of Power Engineering, 2010, 30(9): 695-698.

Google Scholar

[6] ZHOU Qulan, XU, Tongmo, HUI Shien. Development and application of China's own wet Flue Gas Desulfurization technique[J]. Journal of Power Engineering, 2006, 26(2), 261-264.

Google Scholar

[7] LI Pengfei, TONG Huiling. Comparison and analysis on the calculation methods of acid dew point of flue gas[J]. Boiler Technology, 2009, 40(6): 5-8.

Google Scholar

[8] YU Qinjian. Study of desulfurization system mass balance[D]. BeiJing, North China Electric Power University, (2013).

Google Scholar