A lab-scale study on the humidity conditioning of flue gas for improving fabric filter performance

Ok Hyun Park; Gab Jun Yoo; Bong Jo Seung

Korean Journal of Chemical Engineering, Vol.24, No.5, 717-722, September, 2007

DOI10.1007/s11814-007-0032-8 Export Citation

A lab-scale study on the humidity conditioning of flue gas for improving fabric filter performance

Ok Hyun Park^†, Gab Jun Yoo, and Bong Jo Seung¹

Department of Environmental Engineering, Pusan National University, Busan 609-735, Korea
¹Research Laboratory, Digital Appliance Company, LG Electronics, Changwon City, Gyeongnam 641-711, Korea

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A centrifugal separator was constructed to examine the effect of flue gas humidity on the adhesional force between fabric and collected dust. A lab-scale fabric filter sampling system (FFSS) was also manufactured by using a piece of flat fabric as a sample of bag material. In addition, an automatic control system for gas humidity was devised and installed in the FFSS, and, then, the following effects were studied: (i) the influence of gas humidity on the adhesional force between fabric and dust particles; (ii) the influence of gas humidity on the performance of fabric filter in terms of pressure drop, ΔP, dust removal efficiency, η, and specific cake resistance, K2' ; (iii) the variations in the composite-performance indices with gas humidity; and (iv) the influence of gas humidity on cleaning of dust-cake in terms of effective residual pressure drop. The main objectives were to determine the minimum and maximum values for the gas humidity range and to find the appropriate conditions for dust cleaning in terms of the critical value of effective residual pressure drop.

Keywords:Adhesional Force;Humidity Conditioning;Fabric Filter Performance;Effective Residual Pressure Drop;Specific Cake Resistance

[References]

Dennis R, Klemm HA, J. Air Poll. Contr. Assoc., 30, 38 (1980)
Ellenbecker MJ, Leith D, Filtr. Sep., 18, 41 (1981)
Park OH, Kim CS, Cho HH, Korean J. Chem. Eng., 23(2), 194 (2006)
Lu HC, Tsai CH, J. Environ. Eng.-ASCE, 125(6), 583 (1999)
Lu HC, Tsai CH, Aerosol Sci. Technol., 29, 510 (1998)
Lu HC, Tsai CH, Environ. Sci. Technol., 30(11), 3243 (1996)
Morcos VH, Energy, 21(1), 9 (1996)
Yim SS, Kim JH, Korean J. Chem. Eng., 17(4), 393 (2000)
Kulvanish P, Stewart PJ, Int. J. Pharm., 35, 111 (1987)
Sanchez JR, Rodriguez JM, Alvaro A, Estevez AM, Filtr. Sep., 34(6), 593 (1997)
Loffler F, Dietrich H, Flatt W, Dust collection with bag filters and envelope filters, Translated by Herman Simon, Friedr. Vieweg & Sohn, 42-44 (1988)
Snyder TR, Bush PV, Dahlin RS, Fundamental mechanisms in flue gas conditioning, Final Report, Southern Research Institute, USA, 119-128 (1996)
Sano S, Saito F, Yashima S, Kagaku Gogaku Ronbunshu, 10(1), 173 (1984)
Bush PV, Advantage of humidification for pollution control, Proc. Am. Power Conf., Illinios Ins. of Tech., Chicago, II, 57-1, 38 (1995)
Schmidt E, Pilz T, Filtr. Sep., 33(5), 409 (1996)
Durham JF, Harrington RE, Filtr. Sep., 8, 389 (1972)

[Referenced By]

[1] Dennis R, Klemm HA, J. Air Poll. Contr. Assoc., 30, 38 (1980)

[2] Ellenbecker MJ, Leith D, Filtr. Sep., 18, 41 (1981)

[3] Park OH, Kim CS, Cho HH, Korean J. Chem. Eng., 23(2), 194 (2006)

[4] Lu HC, Tsai CH, J. Environ. Eng.-ASCE, 125(6), 583 (1999)

[5] Lu HC, Tsai CH, Aerosol Sci. Technol., 29, 510 (1998)

[6] Lu HC, Tsai CH, Environ. Sci. Technol., 30(11), 3243 (1996)

[7] Morcos VH, Energy, 21(1), 9 (1996)

[8] Yim SS, Kim JH, Korean J. Chem. Eng., 17(4), 393 (2000)

[9] Kulvanish P, Stewart PJ, Int. J. Pharm., 35, 111 (1987)

[10] Sanchez JR, Rodriguez JM, Alvaro A, Estevez AM, Filtr. Sep., 34(6), 593 (1997)

[11] Loffler F, Dietrich H, Flatt W, Dust collection with bag filters and envelope filters, Translated by Herman Simon, Friedr. Vieweg & Sohn, 42-44 (1988)

[12] Snyder TR, Bush PV, Dahlin RS, Fundamental mechanisms in flue gas conditioning, Final Report, Southern Research Institute, USA, 119-128 (1996)

[13] Sano S, Saito F, Yashima S, Kagaku Gogaku Ronbunshu, 10(1), 173 (1984)

[14] Bush PV, Advantage of humidification for pollution control, Proc. Am. Power Conf., Illinios Ins. of Tech., Chicago, II, 57-1, 38 (1995)

[15] Schmidt E, Pilz T, Filtr. Sep., 33(5), 409 (1996)

[16] Durham JF, Harrington RE, Filtr. Sep., 8, 389 (1972)