emental composition in nigerian coals

Elemental composition of Nigerian coals - ScienceDirect

Jan 01, 1985  Three analytical techniques (ASTM, FNAA and INAA) have been used to determine the major elemental composition, the percentage concentrations of Si, Fe

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PROXIMATE AND ELEMENTAL ANALYSIS OF SOME NIGERIAN

elements in the coal samples shows that Benue and Enugu coals are in the rank of sub-bituminous coal while Delta coal belong to the lignite or brown coal. This elemental analysis shows that Enugu and Benue coal deposits are of higher economic value that Delta coal deposit.

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Ultimate Analysis of some Nigerian coal

This paper reports the elemental composition of some Nigerian coals and its application in ranking of the coals. Objectively, this will indicate the area of utilization or application. II. MATERIALS AND METHOD 2.1 Material 4 The materials used for this study include five different coal samples collected from Garin Maiganga (GMG A3 – top

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Trace elemental composition of Nigerian coal measured by ...

Mar 01, 1983  The instrumental neutron activation analysis (INAA) technique has been used to determine 17 major, minor, and trace elements in samples of the three major sources of Nigerian coal. The NBS Standard Reference Material, Coal SRM 1632, was also analyzed, for the purpose of verifying the accuracy of the method. The results obtained with it were in good agreement with the NBS

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(PDF) Determination of trace elements in Nigerian coals by ...

PDF On Aug 1, 1984, A. H. M. A. Hannan and others published Determination of trace elements in Nigerian coals by neutron activation analysis Find, read and cite all the research you need on ...

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(PDF) Structural characterization of Nigerian coals by X ...

Carbon 1995;33(11):1561e5. maturity in coals. The elemental carbon contents for the coals are [15] Mennelia V, Monaco G, Colangeli I, Bussoletti E. Raman Spectra of carbon- plotted against their fa and d002 and Lc values in Fig. 7. There is based materials excited at 1064 nm. Carbon 1995;33(2):115e21.

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Structural characterization of Nigerian coals by X-ray ...

Dec 01, 2010  Six Nigerian coals collected from four coal fields namely; Okaba, Onyeama, Chikila and Lafia Obi, coded OK, OY, CHI and LA, respectively were analyzed. The coals range from sub-bituminous to bituminous. The samples were ground into powder (72 mesh) and analyzed for moisture, ash and elemental composition.

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Characterization of Some Nigerian Coals for Power Generation

May 12, 2016  3.2. Ultimate Analysis. Results obtained from the ultimate analysis carried out on the five coal samples were evaluated on air-dried basis. Oxygen was calculated by difference on an air-dried basis using ().The elemental composition of carbon, hydrogen, nitrogen, sulphur, and oxygen in the coal samples is shown in Table 2.The percentages of the elemental carbon of Odagbo, Owukpa,

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(PDF) Structural characterization of Nigerian coals by X ...

Carbon 1995;33(11):1561e5. maturity in coals. The elemental carbon contents for the coals are [15] Mennelia V, Monaco G, Colangeli I, Bussoletti E. Raman Spectra of carbon- plotted against their fa and d002 and Lc values in Fig. 7. There is based materials excited at 1064 nm. Carbon 1995;33(2):115e21.

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Critical evaluation of a Nigerian sub-bituminous coal ...

The Nigerian coal has an ash content of 9 weight percent on air-dried basis while the South African ash content of 16.2 weight percent. And again, considering the inorganic elemental composition, the Nigerian coal has a lower percentage; 1.7 wt % N 2 and 0.7 wt% suphur for NGR while BCH has the values of 2 wt% N 2 o

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Physicochemical characterization of low rank Nigerian coals

This study is aimed at investigating the physicochemical properties of low rank Nigerian coals. The coal samples were examined using bomb calorimetry, ultimate and proximate analyses to determine the heating value, elemental composition and physicochemical properties. The calorific values of the coals were; 23.74 MJ/kg for GMG; 27.34 MJ/kg for SKJ and 30.52 MJ/kg for AFZ.

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MINERALOGICAL COMPOSITION OF NIGERIAN COALS: Fuel

(1993). MINERALOGICAL COMPOSITION OF NIGERIAN COALS. Fuel Science and Technology International: Vol. 11, No. 10, pp. 1319-1329.

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An Assessment of the Major Elemental Composition and ...

Limestone samples from Yandev and Odukpani limestone deposits in Nigeria were subjected to elemental analysis by Proton Induced X-ray Emission (PIXE) technique with the aim of broadening any database information on their elemental composition and concentration and accessing the extent of their environmental friendliness.

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Characterisation Of Some Nigerian Coals For Power Generation

of Nigerian coals and make a strong case for the utilisation of these coals in power generation. The specific objectives of the research are: (i) To carry out proximate, ultimate and ash composition analyses of the coal samples. (ii) The determination of calorific value of the coal samples.

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Humic acids from oxidized coals I. Elemental composition ...

Humic acids from oxidized coals I. Elemental composition, titration curves, heavy metals in HA samples, nuclear magnetic resonance spectra of HAs and infrared spectroscopy Chemosphere. 2004 Feb;54(8):1237-45. doi: 10.1016/jemosphere.2003.10.020. Authors Monika ...

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PHYSICOCHEMICAL CHARACTERIZATION AND THERMAL

The coal sample was acquired from the Garin Maiganga coalfield in the Akko Local Government Area of Gombe State in Nigeria. The coal was pulverized and sifted using a laboratory sieve to obtain 250µm sized particles prior to characterization. Consequently, its elemental composition was determined using a

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Research Article Quality Assessment of Igaliwo and Olokwu ...

Geochemical composition of the coals was defined in terms of their ultimate analysis. Ultimate (Elemental) analysis is dependent on quantitative analysis of various elements present in the coal samples, such as carbon, hydrogen and oxygen (the major components) as well as

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Heavy Metals Concentrations in Coal and Sediments from ...

elements are detrimental to aquatic biota or human health arsenic has been found to have an effect on the liver by causing a disease called cirrhosis (Hutton, 1987). Coal contains diverse amounts of trace elements in their overall composition (Thomas, 1992). The sediments of the sea station of the Indian

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CHEMICAL AND PYROLYTIC THERMOGRAVIMETRIC

Basically, the elemental contents of the coals were observed to be within the limits typically observed for coals in literature [18]. Furthermore, the higher values of HHV, C, and lower H, M, and O in the AFZ coal indicates a higher maturity and rank compared to the SKJ coal. Tab. 1 Chemical Fuel Properties of Bituminous Nigerian Coals

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An Assessment of the Major Elemental Composition and ...

Limestone samples from Yandev and Odukpani limestone deposits in Nigeria were subjected to elemental analysis by Proton Induced X-ray Emission (PIXE) technique with the aim of broadening any database information on their elemental composition and concentration and accessing the extent of their environmental friendliness.

More

MINERALOGICAL COMPOSITION OF NIGERIAN COALS: Fuel

(1993). MINERALOGICAL COMPOSITION OF NIGERIAN COALS. Fuel Science and Technology International: Vol. 11, No. 10, pp. 1319-1329.

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CHARACTERISATION OF SOME NIGERIAN COALS FOR POWER ...

The ease of combustion of the coal samples in decreasing order is Odagbo, Owukpa, Inyi, Ezimo and Amansiodo. The ignition temperatures of the coals increase with decreasing volatile matter content, their calorific values are strongly correlated with the fixed carbon, elemental carbon, volatile matter and hydrogen contents in decreasing order.

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Heavy Metals Concentrations in Coal and Sediments from ...

elements are detrimental to aquatic biota or human health arsenic has been found to have an effect on the liver by causing a disease called cirrhosis (Hutton, 1987). Coal contains diverse amounts of trace elements in their overall composition (Thomas, 1992). The sediments of the sea station of the Indian

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GEOCHEMISTRY OF COAL AND COAL BEARING STRATA

Keywords: Anambra basin, coal, mamu formation, paleoredox history, trace elements Introduction The coal-bearing Mamu Formation (Reyment, 1965) in the Anambra Basin (SE Nigeria) extends from Auchi/Agenebode area in the west to Ogboyoga in north, along the Awgu-Enugu Escarpment to Udi/Enugu area in the east of the basin (Fig. 1).

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Humic acids from oxidized coals I. Elemental composition ...

Humic acids from oxidized coals I. Elemental composition, titration curves, heavy metals in HA samples, nuclear magnetic resonance spectra of HAs and infrared spectroscopy Chemosphere. 2004 Feb;54(8):1237-45. doi: 10.1016/jemosphere.2003.10.020. Authors Monika ...

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Trace element emissions from coal

2 Trace elements in coal and biomass Trace element emissions from coal 7 Coal, as the most abundant fossil fuel, accounts for ~40% of the electricity produced throughout the world. Coal-fired power plants release to the environment SO 2and NOx, as well as CO 2and N 2O,

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TRACE METAL CONTENT OF COAL AND ASH AS DETERMINED

grains in Illinois #6 coal at levels up to 2680 ppm, 410 ppm, 320 ppm, and 880 ppm, respectively. These elements were present in fewer than half the grains analyzed. Cr has been detected at up to 950 ppm in half of clay mineral grains analyzed in Illinois #6 coal. The same trace metals were detected in pyrite and clay grains from Pittsburgh #8 coal

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Ultimate Analysis of some Nigerian coal: Ranking and ...

Abstract. Ultimate analysis was carried out to determine the elemental composition of some Nigerian coal samples viz: Garin Maiganga (GMGA3 ndash top layer and GMGB ndash base layer), Chikila (CHK), Lamza (LMZ) and Afuzie (AFZ) in order to ascertain their ranks for appropriate utilization.

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The elemental and isotopic composition of sulfur and ...

The elemental and isotopic composition of sulfur and nitrogen in Chinese coals Hua-Yun Xiao⇑, Cong-Qiang Liu State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China article info Article history: Received 3 July 2010 Received in revised form 6 October 2010 Accepted 27 ...

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Data evaluation of trace elements determined in Nigerian ...

Data evaluation of trace elements determined in Nigerian coal using cluster procedures. Ewa IO(1). Author information: (1)Centre for Energy Research and Training, Ahmadu Bello University, Zaria, Nigeria. [email protected] Large data-sets of elements determined by instrumental neutron activation analysis (INAA) require meaningful interpretation ...

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RESEARCH Open Access Proximate analysis, rheological ...

Shankodi-Jangwa coals using the International Standard Organization (ISO) chart revealed that the ISO code numbers are 900, 800 and 622, respectively. Keywords: Coking coal, Nigeria, Proximate analysis, Sulphur, Plasticity, Rheology, Physico-chemical properties, Elemental composition Background Coal is one of the most abundant fossil fuels in ...

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