elemental composition of nigerian coals

  • Studies on elemental composition and physico

    Studies on elemental composition and physico-chemical properties of coal deposits in Lamza and Guyuk Local Government, Adamawa State, Nigeria This work examined some elemental composition and physico-chemical properties of coal deposits found in Lamza Village in Guyuk Local Government Area of Adamawa State.

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  • Determination of radionuclides and elemental composition

    Feb 28, 2013The specific elemental composition of each clay material will usually depend on the amount of the element present in the host rock, the chemical association of the elements with stable and/or unstable mineral during weathering and the intensity of drainage and other polygenetic alterations associated with clay materials (Ibeanu et al., 1997). It has a wide range of applications in the building

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  • COMPARATIVE CHEMICAL AND TRACE ELEMENT

    case of the first two, the contents are dependent on maceral composition and rank [11]. Nigeria equally has large coal reserves, estimated to be at least 2 billion metric tons of sub-bituminous to bituminous coals and unquantifiable lignite deposits with 650 million tonnes

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  • Development and Application of a Correlation of 13C NMR

    Unfortunately, due to the expense of the process, extensive 13C NMR data are not available for most coals. A nonlinear correlation has been developed that predicts the chemical structure parameters of both U.S. and non-U.S. coals generally measured by 13C NMR and often required for advanced devolatilization models.

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  • Trace elemental composition of Nigerian coal measured by

    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

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  • Quantitative Analyses of Trace Elements in Some Nigerian

    The quantitative analyses of trace elements in some Nigerian coals have been investigated inud this research. Four samples of coal collected from the following locations: Enugu (onyeama),ud Ogwashi-Azagba, Orukpa and amansiodo were studied.

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  • Coal Ash Basics

    Coal ash includes a number of by-products produced from burning coal, including: Fly Ash, a very fine, powdery material composed mostly of silica made from the burning of finely ground coal in a boiler. Bottom Ash, a coarse, angular ash particle that is too large to be carried up into the smoke stacks so it forms in the bottom of the coal furnace.

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  • v116n2a8 Determination of mineral matter and elemental

    Determination of mineral matter and elemental composition of individual macerals 170 The inorganic elements within the organic structure of coal macerals may react in a different way to the same elements occurring in the discrete mineral particles (Falcone et

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  • The Types of Coal: Composition, Usage, and Energy Value

    Dec 17, 2018Some types of coal burn hotter and cleaner, while others contain high moisture content and compounds that contribute to acid rain and other pollution when burned. Coals of varying composition are used as a combustible fossil fuel for generating electricity and

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  • Quantitative Analyses of Trace Elements in Some Nigerian

    reflected by the macreal composition of the coal. Definition of Trace Elements: Quantitative analyses of coal deals with the determination of the concentration of trace elements in coal using atomic and analytical techniques. Trace elements could be defined as those elements that occur in minute or negligible quantities in coal.

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  • What is the chemical composition of coal

    Coal is mostly carbon, but it has some other elements in it, notably sulfur, hydrogen, oxygen and nitrogen. The actual molecular structure varies; there is no fixed formula for the chemistry of

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  • What are the chemical mineral composition (including

    These classifications are based on the amount of carbon, oxygen, and hydrogen present in the coal. Coal is defined as a readily combustible rock containing more than 50% by weight of carbon. Coals other constituents include hydrogen, oxygen, nitrogen, ash, and sulfur. Some of the undesirable chemical constituents include chorine and sodium.

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  • Nigerian Coal Specification

    Elemental composition of Nigerian coals - ScienceDirect (Third Edition), Report on the pre-feasibility study for the expansion of the Nigerian Coal Corporation, NCC, P.M.B. 1053, Enugu, Nigeria (1973) Chat With Sales; Liquefied Natural Gas - Department of Energy. When liquefied, natural gas .

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  • What is the difference between proximate analysis and

    Proximate analysis of coal examines the chemical composition of a coal sample. The proximity analysis parameters are. 1) Moisture, 2) Volatile compounds, 3) Ash content. 4) Fixed carbon. Proximate analysis used to ascertain "Rank" of coals as the above parameters will indicate the Heating value of the coal.

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  • Coal Combustion and Combustion Products

    UNESCO – EOLSS SAMPLE CHAPTERS COAL, OIL SHALE, NATURAL BITUMEN, HEAVY OIL AND PEAT – Vol. I - Coal Combustion and Combustion Products - Xianglin Shen Encyclopedia of Life Support Systems (EOLSS) 3.1.1 Fixed Grate An overfeed fixed bed on a fixed grate is the most simple way of coal combustion.

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  • Environmental and Health Implications of Coal Mining at

    Coal occurrence, exploitation, Processing, and utilization have strong impact both on human health and the environment. This results from its composition and environment of occurrence. Maiganga Coal occurs in the Gombe sandstone. Result of the petrography analysis of the study area demonstrates high silica content and the presence of some elements in the mine.

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  • Gas chromatography elemental analysis of some corrosion

    Elemental composition is an important chemical characteristic and its determination is the first essential step in investigating the structures of chemical Elemental compounds. analysis is used extensively across a wide range of applications including pharmaceuticals, oil related products, catalysts and foods.

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  • Chemical Composition of Petroleum

    Dec 24, 2018Elemental Composition of Petroleum. Although there is considerable variation between the ratios of organic molecules, the elemental composition of petroleum is well-defined: Carbon - 83 to 87%. Hydrogen - 10 to 14%. Nitrogen - 0.1 to 2%. Oxygen - 0.05 to 1.5%. Sulfur - 0.05 to 6.0%. Metals -

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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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  • Fossil Fuel Elements

    Fossil fuels are hydrocarbons comprised primarily of the following elements: carbon and hydrogen and some sulfur, nitrogen, oxygen, and mineral matter. Mineral matter turns into ash when burnt. The composition and the amounts of these elements change for different fossil fuels (coal, petroleum, and natural gas), but the elements are the same.

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  • Physicochemical characterization and thermal analysis of

    Physicochemical characterization and thermal analysis of newly discovered Nigerian coals B. B. Nyakuma Centre of Hydrogen Energy, Institute of Future Energy, H and low O content in the elemental composition of the coals. In contrast, the low HHV in GMG is Physicochemical characterization and thermal analysis of newly discovered Nigerian

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  • Data evaluation of trace elements determined in Nigerian

    Data evaluation of trace elements determined in Nigerian coal using cluster procedures. Further work revealed some of these coals as having high gross calorific value (7908 kcal kg (-1) for Enugu coal; 7200 kcal kg (-1) for Okaba) and low sulphur thereby making them efficient fuel materials.

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  • Coal

    Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed if dead plant matter decays into peat and over millions of years the heat and pressure of deep burial converts the peat into coal. Vast deposits of coal originates in former

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  • What Should a Coal Analyzer Measure? And Why?

    An elemental coal analyzer is a specialized analyzer that is utilized by coal-fired power plants and coal producers to help proactively address process variations and ensure more consistent coal blends and improved fuel quality. In the coal blending process, different quality coals are mixed after they are mined to meet the specifications needed for the intended application.

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  • Ultimate Analysis of some Nigerian coal: Ranking and

    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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  • Chapter 7 COAL

    Carbon and hydrogen are the principal combustible elements in coal. On a weight basis, carbon is the predominant one. It constitutes about 60% to about 95% of the total. For most coals of 90% or less carbon, hydrogen content is generally in the range of 5%;

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  • Source Rock Potential and Thermal Maturity of the Tertiary

    Obaje and Hamza (2000) investigated the liquid hydrocarbon potential of mid-Cretaceous coals and coal measures in the middle Benue Trough of Nigeria and also subdivided the coal beds into three different coal facies, namely: a vitrinite-fusinite, a trimaceritic and shaly coal facies.

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  • Physical and Plastic Properties of Three Nigerian Coals

    The present global concern for new sources of energy has kindled a renewed interest in coal. In the option for maximizing the use of low grade coals in the production of metallurgical grade coke and various coal conversion processes, the qualities of three Nigerian coal samples, Onyeama, Garin Maiganga and Lafia-Obi, were assessed for their potential utilization in a blast furnace.

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  • Rare Earth Elements in Coal Deposits

    of these rare earth elements from coals still being actively produced, from mining wastes or abandoned mines that remains accessible, and from fly ash produced during combustion of these coals. The study is not primarily intended to answer this

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  • The Chemical Composition of Coal and Its Negative Impact

    May 27, 2008The Chemical Composition of Coal and Its Negative Impact. The sulphur and nitrogen content are important as emissions of their chemical oxides during coal burning can cause acid rain. Uncontrolled emissions resulted in widespread damage to forests and lakes in

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