emental composition in nigerian coals

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Human health impact assessment and temporal distribution ...

A review of key hazardous trace elements in chinese coals: abundance, occurrence, behavior during coal combustion and their environmental impacts. Energy Fuels 27, 601–614 (2013). CAS Google ...

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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 …

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Quantitative Analyses of Trace Elements in Some Nigerian Coals

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. ... in Amansiodo coalud and least composition (0.236%) in Ogwashi-Azagba coal. Silicon on the other ...

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Physicochemical, Geomineralogical, and Evolved Gas ...

EDX Elemental Composition of Nigerian Lignite Coals Full size table As observed in Table 2, the EDX analysis detected the eight (8) elements C, O, Al, Si, S, K, Ti, and Fe in the samples although potassium (K) was not detected (ND) in IHM and OGB.

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Main Analytical Techniques Used for Elemental Analysis in ...

of elemental analysis. This article provides an overview of the most sensitive techniques of elemental analysis such as atomic absorption/emission spectrometry, mass spectrometry, x-ray fluorescence, voltametry, and nuclear techniques. In addition, the article addresses some applications in a range of sample matrices.

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(PDF) Determination of trace elements in Nigerian coals …

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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Determination of mineral matter and elemental …

Determination of mineral matter and elemental composition of individual macerals in coals from Highveld mines February 2016 Journal- South African Institute of Mining and Metallurgy 116(2)

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Inorganic composition of Belgian coals and coal ashes ...

Modes of occurrence of elements in coal: A critical evaluation. Earth-Science Reviews 2021, 222, 103815. ... Methods for Characterization of Composition of Fly Ashes from Coal-Fired Power Stations: A Critical Overview. ... Trace elemental composition of Nigerian coal measured by neutron activation analysis.

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Coal - Chemistry Encyclopedia - structure, water, uses ...

Coal, a naturally occurring combustible solid, is one of the world's most important and abundant energy sources. From its introduction 4,000 years ago as a fuel for heating and cooking, to its nineteenth- and twentieth-century use in generating electricity and as a chemical feedstock, coal, along with oil and natural gas, has remained an important source of energy.

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(PDF) Determimation of trace elements in Nigerian coal ash ...

In coal ash obtained by the combustion of Nigerian coal, most of the elements examined had enrichment factors < 1, while arsenic, iron, hafnium, sodium and …

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Characterization of Some Nigerian Coals for Power …

12%The elemental composition of coal and biomass provides significant parameters used in the design of almost all energy conversion systems and projects. The laboratory tests to determine the elemental composition of coal and biomass is time-consuming and costly. However, limited research has suggested that there is a correlation …

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Elemental composition of coal mine dust (Book, 1974 ...

COVID-19 Resources. Reliable information about the coronavirus (COVID-19) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this WorldCat.org search.OCLC's WebJunction has pulled together information and resources to assist library staff as they consider how to handle …

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COMPARATIVE CHEMICAL AND TRACE ELEMENT …

Keywords: Nigerian coal, South African coal, Coal fly ash, Major oxides, Trace elements, Mineralogy. 1. INTRODUCTION Coal is a combustible carbonaceous rock that contains varying amounts of carbon, hydrogen, nitrogen, oxygen, sulphur and mineral matter and nearly 8 gigatonnes per year of coal is produced globally at ∼0.05 $/kg) [1]. It is an

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NIGERIAN CRETACEOUS COAL DEPOSITS AND THEIR …

hydrocarbon generation. At greater depths, the Middle Benue Trough coals would have completed generation and reached over-cooked facies while the Maastrichtian coals would have entered the main oil window except the Gombe coals which are stratigraphy too shallow. KEYWORDS: Nigerian, cretaceous coal deposits, petroleum source, rock characteristics

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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 …

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COAL CHARACTERISTICS - Purdue University

COAL ANALYSIS Elemental analysis of coal gives empirical formulas such as: C 137 H 97 O 9 NS for Bituminous Coal C 240 H 90 O 4 NS for high-grade Anthracite Coal is divided into 4 ranks: ... [<0.1% of a rock's composition] of zinc, copper, boron, lead, arsenic, cadmium, chromium, selenium) CCTR

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Fossil Fuel Elements | Map MOOC

The composition and the amounts of these elements change for different fossil fuels (coal, petroleum, and natural gas), but the elements are the same. For example, there is more hydrogen in liquid fuels than in coal per unit mass. Instructions: Click on the images of fossil fuels below to find out their compositions.

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Application Note: Elemental Analysis: CHNS/O …

The composition of coal varies depending on the place where it formed and which kind of soil or rock determined its formation. This means that its composition and properties affect its fi nal use and its impact on the environment. Given environmental concerns and regulations, the elemental analysis of coal is important for its quality control.

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Elemental composition of Nigerian coals - ScienceDirect

Elemental composition of Nigerian coals. Author links open overlay panel A.B. Borishade A.H.M.A. Hanan L.O. Kehinde A.F. Oluwole O. Oshin. Show more

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Who wins the battle of jollof taste, Ghana or Nigeria?

Unlike the Nigerian Jollof, Ghanaian Jollof has a higher tomato flavor composition, because Ghanaians love Tomato in several forms, whether fresh, ripe, fruity, puree or cooked. Ghanaians also add meat to the tomato …

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Determination Of Elemental Composition and Trace …

the major elemental composition and trace elements presents in of significant to its utility, also the impurities present in it can as well hindered its usage as industrial raw material. Limestone is one of the solid mineral resources in Nigeria and it is located in various parts of the country, with the Calabar flank as

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Learn About Natural Gas | Enbridge Gas

Chemical composition of natural gas. Natural gas is a naturally occurring gas mixture, consisting mainly of methane sourced from supply basins in western Canada, the United States and Ontario producers. Composition is an overall system average and may vary from the typical value listed below by location.

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

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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OXEA® Online XRF Analyzer Series - Indutech english

The OXEA ® product line is based on X-ray fluorescence (XRF) and determines the elemental composition of the measured product. Indutech has modified the well known XRF technique, for online applications. All elements with an atomic number > 10 (Sodium and above) can be detected down to the ppm-range. The OXEA ® is applicable for all materials ...

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Proximate Analysis of the coal samples in Percentage Dry ...

The chemical composition of the coal got from the ultimate analysis test showed that the carbon contents were between 10.40-68.59%. The sulphur and …

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Chemical Constitution of Crude Oil | FSC 432: Petroleum ...

Chemical Constitution of Crude Oil. Crude oil contains organic compounds, heteroatom compounds (S,N,O), hydrocarbons (C, H), metals and organic (Ni, V, Fe) and inorganic (Na +, Ca ++, Cl-) compounds as listed in Figure 1.7.Compounds that contain only elements of carbon and hydrogen are called hydrocarbons and constitute the largest group of organic compounds …

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Analysis of clean coal technology in Nigeria for energy ...

This study aims to evaluate the coal consumption rate, emission factor and total energy recovery for USC, FBC, IGGC and CBM technologies and compare them with those from a conventional low efficiency subcritical pulverised fuel (PF) for several coals from ten different coal mines in Nigeria, namely Onyeama, Ogwashi, Ezimo, Inyi, Amasiodo, Okaba, Lafia-Obi, …

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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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Who wins the battle of Jollof taste? Nigeria or Ghana ...

The essence of African Jollof. Generally, both in Nigeria and Ghana, what gives the rice the red color and the unique taste that differentiates it from Senegalese rice are the ingredients. These ingredients include; tomatoes, tomato paste, onions, scotch bonnet peppers, salt, spices, and vegetable oil. Depending on what's available in both ...

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1.1 Bituminous And Subbituminous Coal Combustion

1.1 Bituminous And Subbituminous Coal Combustion 1.1.1 General Coal is a complex combination of organic matter and inorganic mineral matter formed over eons from successive layers of fallen vegetation. Coals are classified by rank according to their progressive alteration in the natural metamorphosis from lignite to anthracite. Coal rank depends on

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What is Alkali-Activated Concrete (AAC)? - The Constructor

Reading time: 4 minutes. Alkali-activated concrete (AAC) is defined as a class of cement-free concrete that is an alternative to Portland cement concrete (PCC). In AAC, the cement is entirely replaced by an alternative binder. Instead of using ordinary portland cement (OPC) and water, AAC uses other supplementary materials like blast furnace ...

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Study on Pyrolysis Characteristics of Coal and Combustion ...

In this study, thermogravimetric analysis (TGA) coupled with Fourier transform infrared (FTIR) spectroscopy was used to heat the coal samples of six different coalification degrees from room temperature to 1000°C at 20°C·min −1 under nitrogen atmosphere. The influence of coal degree and pyrolysis temperature on the content of pyrolysis products of coal was analyzed by the …

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[PDF] Quality of Some Nigerian Coals as Blending Stock in ...

Two Nigerian coals, Lafia-Obi and Chikila were blended in the mass ratio of 70:30 with imported American and Polish coking coals. Proximate analysis, free swelling index, Ruhr dilatometer and Gieseler plastometer were used in assessing the coking qualities of both the single coals and the blends. The results show that the blends are lower in moisture and ash contents; higher in …

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