elemental composition of nigerian coals

Elemental composition of vegetables cultivated over coal

Elemental composition was analyzed by particle-induced X-ray emission (PIXE) method. Concentrations of Mg, S, and Ca of mice subjected to one-time consumption of broccoli and concentrations of these same elements plus Si of mice receiving kale were higher in the coal-mining area. Concentrations of P, K, and Get price

OKD

Coal composition. Coal is a mineral in which the chemical element of carbon is prevalent. Carbon content (the so-called coalification) depends foremost on the time during which the conversion from plant matter to the final mineral took place.The older the coal, the higher the carbon percentage and the less apparent the original vegetable component, i.e. the fossil, remains of plant tissues Get price

ASTM D3174

5.1 Ash, as determined by this test method, is the residue remaining after burning the coal and coke. Ash obtained differs in composition from the inorganic constituents present in the original coal. Incineration causes an expulsion of all water, the loss of carbon dioxide from carbonates, the conversion of iron pyrites into ferric oxide, and other chemical reactions. Get price

Coke (fuel)

Coke is a grey, hard, and porous fuel with a high carbon content and few impurities, made by heating coal or oil in the absence of air—a destructive distillation process. It is an important industrial product, used mainly in iron ore smelting, but also as a fuel in stoves and forges when air pollution is a concern.. The unqualified term coke usually refers to the product derived from low Get price

Geochemical and Mineralogical Significance of Trace Metals

The elemental analysis of the coal samples were performed using energy dispersive X-ray spectrometer Fluorescence [EDXRF] Link Analytical system Model XR300 50 KV- Fundamental Parameter Model equipped with a multichannel analyzer at the center for Energy Research, Obafemi Awolowo University, Ile-Ife, Nigeria. Get price

Chemical Analysis of Ginger Root

The mineral elemental composition of ginger root samples as shown in table II indicated that ginger is rich in essential minerals like: calcium 280.0 mg/100g, Iron 279.7 mg/100g, Zinc 64.0 mg/100g, Manganese 5.90 mg/100g and Copper 8.80 mg/100g. The result on mineral composition are in agreement with an earlier Get price

The Nigerian Code of Corporate Governance

Nigeria recently released the Nigerian Code of Corporate Governance ('the Code") on January 15, 2019. The Code highlights key principles that seeks to institutionalise corporate governance best practices in Nigerian companies. KPMG recognises that good corporate governance is a key driver in the establishment . of sustainable enterprise. Get price

Petroleum Refining and Petrochemical Processes

The exact molecular composition varies widely from formation to formation but the proportion of chemical elements vary over fairly narrow limits as follows: Petroleum - Crude oil Composition by weight Element Percent range 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 0.1% Composition Get price

COMPARATIVE CHEMICAL AND TRACE ELEMENT

Nigerian coals are of cretaceous or early tertiary age and are mostly located in the eastern part of the country. They are mostly lignite and sub-bituminous, with some deposits of high volatile bituminous coal [14]. Coal combustion is usually accompanied with residual incombustible ash residue called fly ash and the coal properties Get price

Coal tar

Coal tar is a thick dark liquid which is a by-product of the production of coke and coal gas from coal. It has both medical and industrial uses. It may be applied to the affected area to treat psoriasis and seborrheic dermatitis (dandruff). It may be used in combination with ultraviolet light therapy. Industrially it is a railway tie preservative and used in the surfacing of roads. Get price

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. Get price

Raman spectroscopy for the analysis of coal: a review

Yu Liu, Yanming Zhu, Shangbin Chen, Effects of chemical composition, disorder degree and crystallite structure of coal macromolecule on nanopores (0.4–150 nm) in different rank naturally-matured coals, Fuel, 10.1016/j.fuel.2019.01.095, 242, (553-561), (2019). Get price

Elemental composition of vegetables cultivated over coal

The differences in the elemental composition of the soils and vegetable species between the two sites (farming organic and coal-mining area) as well as in the livers of mice exposed to vegetable juice from the coal-mining area and organic farming area were evaluated by Student's t test (P ≤ 0.05) in the GraphPad Prism software package Get price

Types and Composition of Coal

Bituminous: This is the second rank of coal, softer and younger than anthracite, and containing a lower percentage of carbon (45-85%) and therefore more moisture and volatiles.Bituminous coal is not currently mined in Alaska, but the future Wishbone Hill Mine by Usibelli and the proposed Western Artic Coal Project by BHP Billiton would focus on this type of coal. Get price

Elemental composition of PM2.5 in Shiprock, New Mexico, a

Elemental composition of PM2.5 in Shiprock, New Mexico, a rural community located near coal-burning power plants and abandoned uranium mine tailings sites Abstract Fine particulate matter (PM[subscript 2.5]) was collected in Shiprock, New Mexico, a small community located near two coal–fired power plants and numerous abandoned uranium mine Get price

The geochemistry of lignite from the Neogene Ogwashi

The pertinent literature on Nigerian lignite deposits' major and trace element composition is scarce (Adedosu et al.,, 2007; Olobaniyi and Ogala, 2011). Coal is heterogeneous sediment having both organic and inorganic fractions; it contains variable amounts of almost all the elements included in the periodic table (Christanis et al.,, 1998 Get price

Trace Elements in Coal and Coal Combustion Residues

Sep 27, 1993Trace Elements in Coal and Coal Combustion Residues focuses on trace metal chemistry of coal and coal combustion residues. Special emphasis is placed on management of coal combustion residues in electric power plants and the influence of coal and associated residues on soils, plants, water, and animals. Topics covered include a brief summary of research sponsored by Electric Get price

Difference Between Charcoal and Coal

Jan 20, 2012There are different types of coal. They are ranked based on their properties and composition. Such coal types are peat, lignite, sub bituminous, bituminous and anthracite. Peat is the lowest type of coal in the ranking list. It is formed from recently accumulated plant debris, and with further time, can be converted to coal. Get price

Fuel properties

inhibited the octane-enhancing effect of the tetraethyl lead. Its typical hydrocarbon composition is presented in Table 1. Average molar mass is =0.099 kg/mol, and ultimate analysis (by weight; M see coal analysis below for more details): 87%C and 13%H (corresponds roughly to C 7.2H 12.6). Table 1. Gasoline composition*. 60% saturated (4..8 -C-) Get price

A review of the correlations of coal properties with

The spatial arrangement and abundance of the elements: C, H, N, O, S often correlate or directly influence a plethora of coal properties. For 90 years, attempts have utilized the ultimate (elemental) analysis of coal to predict a wide variety of properties such as: calorific value (higher heating value), volatile matter, vitrinite reflectance (mean maximum), Hardgrove grindability index Get price

Solved: 3) Coal Being Used In A Power Plant At A Rate Of 8

3) Coal being used in a power plant at a rate of 8000 lbm/min has the following composition: Component Weight% (dry basis) Ash Ash 7.2 Sulfur Sulfur 3.5 Hydrogen 5.0 Carbon Carbon 75.2 75.2 Nitrogen Nitrogen 1.6 1.6 Oxygen In addition, there are 4.58 lbm H20 per lbm of coal. Determine the molar flowrate of each element in the coal. Get price

Biomass Burn Characteristics

Fuel performance is related to the composition of the biomaterial. Important factors include ash, carbon, hydrogen, nitrogen, sulphur, oxygen and chloride content. The elemental composition of various fuels in Ontario is indicated in Table 1. All values are reported on a dry basis. Get price

ASTM D3174

5.1 Ash, as determined by this test method, is the residue remaining after burning the coal and coke. Ash obtained differs in composition from the inorganic constituents present in the original coal. Incineration causes an expulsion of all water, the loss of carbon dioxide from carbonates, the conversion of iron pyrites into ferric oxide, and other chemical reactions. Get price

Coal Mine Gas

Aug 30, 2010Coal Mine Gas – What is it? Coal Bed Methane (CBM) is a byproduct produced during the formation of hard coal from organic residue. It is contained in the coal seams and in small amounts in the surrounding rocks. Typical composure of CSM in undisturbed geological formations is: Methane 90% - 95% Ethane and Long Chain Hydrocarbons (LCH) 0.1% - 3% Get price