Sodium and oxygen in Nigerian coals: Possible effects on ash fouling

Journal Article · Sun Sep 01 00:00:00 EDT 1996 · Journal of Environmental Science and Health, Part A: Environmental Science and Engineering

DOI:https://doi.org/10.1080/10934529609376475· OSTI ID:420923

Ewa, I O.B.; Elegbe, S B; Adetunji, J ^[1]

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1. Ahmadu Bello Univ., Zaria (Nigeria)

Ash fouling during heat transfers in coal power-plants has been known to be an engineering problem caused by high sodium levels of the feed-coals. Instrumental Neutron Activation Analysis (INAA) was used in determining the concentration of some alkali elements (Na, Ca, Mg) associated with ash fouling for eight Nigerian coals mined at Onyeama, Ogbete, Enugu, Gombe, Okaba, Afikpo, Lafia and Asaba. Sodium levels were generally low (0.001-0.036%). Oxygen concentrations considered as an indicative measure of the wettability of each of the coals were determined. The possible effects of the concentration of these elements on ash fouling were discussed. 8 refs., 3 tabs.

• Sponsoring Organization: USDOE
• OSTI ID: 420923
• Journal Information: Journal of Environmental Science and Health, Part A: Environmental Science and Engineering, Vol. 31, Issue 8; Other Information: PBD: Sep 1996
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
CHEMICAL ANALYSIS
WETTABILITY
COMBUSTION
HEAT TRANSFER
FOSSIL-FUEL POWER PLANTS
OXYGEN
SODIUM
FOULING
ASHES
NIGERIA