Comparison of coal composition and elemental distribution in selected seams of the Sydney and Stellarton Basins, Nova Scotia, Eastern Canada

Mukhopadhyay, P. K.; Goodarzi, Fariborz; Crandlemire, A. L.; Gillis, Kevin S.; Macneil, D J; Smith, William

doi:10.1016/s0166-5162(98)00020-2

Cited by 52 publications

(20 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, U (up to 64.5 ppm) and V (up to 363 ppm) are present in high concentration in some Çan coals. The high concentration of U and V may be particular important for the region since these elements are reported to be enriched 10 to 20 times in the combustion residues especially in the fly ash compared to the feed coal (Mukhopadhyay et al, 1998). Additionally, As and B are slightly enriched in some coal samples.…”

Section: Discussionmentioning

confidence: 99%

Geochemistry of trace elements in Çan coal (Miocene), Çanakkale, Turkey

Gürdal

2008

International Journal of Coal Geology

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Geochemistry of trace elements in Çan coal (Miocene), Çanakkale, Turkey

Gürdal

2008

International Journal of Coal Geology

View full text Add to dashboard Cite

“…When the content of As, Cu, Co and Hg increases, also the sulphur contents in coal increase. The determined high concentration of U and V in the Çan coal samples may be particularly important in the region, since these elements are enriched 10 to 20 times in the combustion residues, especially in the fly ash, compared to the feed coal [27].…”

Section: Chemical and Geochemical Properties Of The Fly Ashmentioning

confidence: 99%

Leaching characteristics of fly ash from fluidized bed combustion thermal power plant: Case study: Çan (Çanakkale-Turkey)

Baba

Gürdal

Sengunalp

2010

Fuel Processing Technology

View full text Add to dashboard Cite

It is known that the concentration of elements of fly ash varies due to the used-coal and the used-lime qualities varying in different periods. In the Çan Thermal Power Plant (CTPP) located at northwestern Turkey, Çan (Çanakkale) basin coals, which are classified as lignite to sub-bituminous C coal with high total sulphur (0.4-12.22%) and a broad range of ash contents (3.2-44.6%) are mainly used. Performed studies reveal that some toxic elements exit in the coal, including As, U and V. Also, while the As, Cu, Co and Hg contents in coal increases, the sulphur contents in coal also increase. Additionally, trace elements that have inorganic compounds in coal are mobilized into air during the combustion process. This poses a big risk for human health and keeping the environment when Çan Basins low quality lignite is burned, it's the fly ash that contains several toxic elements which can leach out and contaminate the water resources. In this study, toxicity tests were conducted on the fly ash samples that were obtained from the fluidized bed combustion of Çan Thermal Power Plant. The results showed that water temperature, pH and the quality of the limestone used were the most important factors affecting the leaching properties. Concentration of some toxic elements found in the fly ash, such as; As, Cd, Cr, Pb, Se and Zn were analyzed. Concentration richness of some heavy metals were attributed to the increase of water temperature, especially when pH is lower than 5. At pH = 5 value, there is no clear explanation of each heavy metal presence in the fly ash from fluidized bed combustion thermal power plant.

show abstract

“…In particular, rare earth elements (REEs) in coal have been identified as a group of special significance (Birk and White, 1991;Eskenazy, 1987;Mukhopadhyay et al, 1998;Querol et al, 1997). This is because REEs have two remarkable characteristics: (i) they exhibit a similar chemical behavior that imparts coherency to geochemical events, and (ii) they exhibit a systematic increase in the number of f electrons with increasing atomic number within the lanthanide series, which causes subtle chemical differences in passing from La to Lu.…”

mentioning

confidence: 99%

Rare earth element distribution in the acetic acid soluble fraction of combusted coals: Its implication as a proxy for the original coal-forming plants

Akagi

Suzuki

et al. 2004

Geochem. J.

View full text Add to dashboard Cite

The precise concentrations of rare earth elements (REEs) in Japanese Ashibetsu and Taiheiyo coals, in Indonesian Ambalut coal, and in Australian boghead coal have been determined, in order to compare the REE contents of the coals with those of plants and also to obtain further knowledge of the original plants from which these coals were formed. By leaching the coals after ashing using a 10% acetic acid solution, each coal sample was separated into two fractions: an acetic acid soluble fraction, and an acetic acid insoluble fraction. Our results show that three different types of chondritenormalized REE patterns are observed in the acetic acid soluble fraction of these coals. The acetic acid soluble fractions of the Ashibetsu, the Taiheiyo, and some of the Ambalut coals showed REE patterns identical to those of peat vegetation. Those of other Ambalut coals showed an REE pattern that was similar to that of tree trunks. The boghead coal showed a different REE pattern that was similar to algae, an origin that is also suggested from a maceral study. The REE patterns of the acetic acid soluble fraction can therefore be a useful proxy for determining the original plants that formed the coals.

show abstract

Comparison of coal composition and elemental distribution in selected seams of the Sydney and Stellarton Basins, Nova Scotia, Eastern Canada

Cited by 52 publications

References 23 publications

Geochemistry of trace elements in Çan coal (Miocene), Çanakkale, Turkey

Geochemistry of trace elements in Çan coal (Miocene), Çanakkale, Turkey

Leaching characteristics of fly ash from fluidized bed combustion thermal power plant: Case study: Çan (Çanakkale-Turkey)

Rare earth element distribution in the acetic acid soluble fraction of combusted coals: Its implication as a proxy for the original coal-forming plants

Contact Info

Product

Resources

About