Mass balance of major and trace elements in a coal-fired power plant

Journal Article · Sun Oct 15 04:00:00 EDT 2006 · Energy Sources, Part A: Recovery Utilisation and Environmental Effects

DOI:https://doi.org/10.1080/009083190910523· OSTI ID:20790776

Karayigit, A I; Bulut, Y; Karayigit, G; Querol, X; Alastuey, A; Vassilev, S; Vassileva, C ^[1]

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1. Hacettepe University, Ankara (Turkey)

A total of 48 samples, feed coals (FCs), fly ashes (FAs) and bottom ashes (BAs), which were systematically collected once a week over an eight-week period from boiler units, B1-4 with 660 MW and B5-6 with 330 MW capacity from Soma power plant, have been evaluated for major and trace elements (Al, Ca, Fe, K, Mg, Mn, Na, Ti, S, As, B, Ba, Be, Bi, Cd, Co, Cr, Cu, Cs, Ga, Ge, Hf, Hg, Li, Mo, Nb, Ni, P, Pb, Rb, Sb, Sc, Se, Sn, Sr, Ta, Th, Tl, U, V, Y, Zn, Zr, and REEs) to get information on behavior during coal combustion. This study indicates that some elements such as Hg, Bi, Cd, As, Pb, Ge, Tl, Sn, Zn, Sb, B show enrichments in FAs relative to the BAs in both group boiler units. In addition to these, Cs, Lu, Tm, and Ga in Units B1-4 and S in Units B5-6 also have enrichments in FAs. Elements showing enrichments in BAs in both group boiler units are Ta, Mn, Nb. In addition to these, Se, Ca, Mg, Na, Fe in Units B1-4 and Cu in Units B5-6 also have enrichments in BAs. The remaining elements investigated in this study have no clear segregation between FAs and BAs. Mass balance calculations with the two methods show that some elements, S, Ta, Hg, Se, Zn, Na, Ca in Units B1-4, and Hg, S, Ta, Se, P in Units B5-6, have volatile behavior during coal combustion in the Soma power plant. This study also implies that some elements, Sb and Tb in Units B1-4 and Sb in Units B5-6, have relatively high retention effects in the combustion residues from the Soma power plant.

• OSTI ID: 20790776
• Journal Information: Energy Sources, Part A: Recovery Utilisation and Environmental Effects, Journal Name: Energy Sources, Part A: Recovery Utilisation and Environmental Effects Journal Issue: 14 Vol. 28; ISSN 1556-7036
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
ASHES
COAL
ELEMENTS
ENRICHMENT
FLY ASH
FOSSIL-FUEL POWER PLANTS
MASS BALANCE
MULTI-ELEMENT ANALYSIS
TRACE AMOUNTS
TURKEY
VOLATILE MATTER