WASHABILITY AND FROTH FLOTATION TESTS OF LAFIA …
The Lafia-Obi coal deposit has been found to be geologically faulty and the minimum estimated cost of mining it per ton was at N87.50 as at 1977 (Taskforce, 1987). Considering the present exchange rate of the Nigeria Naira to the US dollar, the current mining price per ton of Lafia-Obi coal can be taken to be US$87.50 (Adeleke and Onumayi, 2007).
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Why NSRMEA Prioritized In-seam Exploration of Obi-Lafia …
Obi-Lafia coal is the only moderately coking coal that has been found in Nigeria deduced from exploratory activities and detailed laboratory & technological tests …
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WASHABILITY AND FROTH FLOTATION TESTS OF LAFIA …
the coal. Direct reduction process of the coal samples were also attempted using the froth flotation process to ascertain reduction or upgrading of the coal deposit for metallurgical purposes. 2.0 Litarture review The Lafia-Obi coal deposit as it is often referred is situated between Obi and Agwatashi town about 40km
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Analysis of clean coal technology in Nigeria for …
The coal mines studied are Onyeama, Ogwashi, Ezimo, Inyi, Amasiodo, Okaba, Lafia-Obi, Owukpa Owukpa, Ogboyoga and Okpara. The estimated reserves of …
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Appraisal of the Economic Geology of Nigerian Coal Resources
The Obi camp is about 32km southeast of the town of Lafia in Nasarawa State. 3.0 Coal Formation The Nigerian coal sequence represents a two phase system, with partial repletion of the coal sequence. The series begins with the typical transgressive period connected with a slight subsidence, whereby a broad shallow sea was formed.
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(PDF) Energy output assessment of Lafia-Obi coal in a …
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(PDF) The gasification of Lafia-Obi coal and thermal …
The coal sample was MATERIALS AND METHODS Material Preparation Methods (PDF) The gasification of Lafia-Obi coal and thermal decomposition analysis was done based on ISO/TR 21916:2021. Academia.edu no longer supports Internet Explorer.
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Amansiodo Coal Block • I-MINE
Coal occurs within the Cretaceous Mamu Formation at the base of the Enugu Escarpment. Exploration. Mapping and drilling 3 core holes carried out with established depth to coal seam at 563m. Underground development undertaken with mine subsequently abandoned. Coal is bituminous; Resource Estimation. Over 128 million tonnes- inferred Data Available
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A Review of Geology and Coal Mining In South Eastern …
Coal mining methods are classified based on the accessibility of deposits, including surface and underground mining (Abalaka & Aga, 2016; Hansen, 2021;Hansen & Ingason, 2013). Fire outbreak in ...
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Multistage caustic leaching De-Ashing of Nigerian Lafia-Obi Coal
Fractions of the high ash Nigerian Lafia-Obi coal L±250 ground to pass the 250 µm sieve in three stages were subjected to proximate/ash composition analyses, hot aqueous leaching de-ashing with ...
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(PDF) Energy output assessment of Lafia-Obi coal …
Fractions of the high ash Nigerian Lafia-Obi coal L±250 ground to pass the 250 µm sieve in three stages were subjected to proximate/ash composition analyses, hot aqueous leaching de-ashing …
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Obi Lafia Coal Block • I-MINE
36 coal seams were identified. 3,366 samples were analyzed for various parameters. Coal is classified as a medium coking type. Resource Estimation. Results of the investigation put the Obi coal deposit at a total reserve of 128.3 million tonnes. Date Available. Large-scale geological and geophysical maps.
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Gasification of Lafia-Obi Coal Using ANSYS Fluent As …
Gasification of Lafia-Obi Coal Using ANSYS Fluent As CAD Tool and Effect of Temperature and Pressure on Producer Gas Composition. International Journal of …
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Coal petrography, mineralogy and geochemistry of
Pedobiological properties of a lignite spoil heap in the Provence coal mine basin (south-east of France) ... Computational fluid dynamics simulation of Lafia–Obi bituminous coal in a fluidized-bed chamber for air- and oxy-fuel combustion technologies. Fuel, Volume 140, 2015, pp. 178-191.
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OBI LAFIA (medium coking)
Proposal for Mine roadway (In-Seam Exploration of Lafia/Obi Coal Deposit)
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The menace of acid mine drainage: an impending challenge in the mining
The proposed Lafia-Obi coal mine which is expected to provide the much needed coking coal for the Adjaokuta Steel Industry cannot be an exception to such environmental menace .The expected coal mining activities has the capacity to affect the quality of domestic water supply to the Nasarawa state capital and its environment with possible ...
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Selective oil agglomeration of Lafia coal, Nigeria | Mining, …
However, testing has shown that Lafia coal can he upgraded by selective oil agglomeration. The optimum oil concentration was found to be 10 mL of paraffin per 25 g of coal. ... Supplementary report on coal prospecting in the Obi area of Lafia, Plateau State, Exploration and Mining Division (Coal Group), Kaduna, Nigeria, April, 60 pp.
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(PDF) Determination of selected metals in coal …
The Obi/Lafia coal beds occur within the Turonian-Early Santonian Awgu Formation in the Middle Benue Trough of Nigeria. ... Nigerian Journal of Mining and Geology, 44: 11-19. Kim, A. G ...
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(PDF) Geology, geochemistry and biomarker …
The La®a-Obi coal is found within the Awgu Formation of the Turonian±Santonian depositional cycle (Fig. 2), and has a proven coal reserve of over 22 million tons [3]. The coal deposit occurs as numerous …
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Gasification of Lafia-Obi Coal using ANSYS Fluent as CAD …
In this paper, Lafia-Obi bituminous coal in the. Gasification, the thermo-chemical conversion of fuels to combustible gases has assumed prominence because of its many advantages which include greenhouse gas sequestration, controllability among others. In this paper, Lafia-Obi bituminous coal in the ...
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Computational fluid dynamics simulation of Lafia–Obi bituminous coal …
Coal was discovered in Nigeria in 1909 and mining activities began in 1915 at Ogbete in Enugu, Southeastern Nigeria [4]. In Nigeria, coal was perhaps the first energy resource to be exploited for rail transport and electricity generation. ... In this study, Lafia–Obi coal is under CFD investigation, a bituminous coal for which experimental ...
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Influence of depositional environment on coal quality in …
The environment of deposition of coal-bearing strata not only controls the accumulation of coal seams but also determines the quality of coal deposits. In this study, the thickness and quality parameters of Jangwa-Shankodi and Lafia-Obi coal seams have been investigated and linked to the depositional palaeoenvironmental features. …
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Potential of coal mine waste rock for generating acid mine …
The menace of acid mine drainage: an impending challenge in the mining of Lafia-Obi coal, Nigeria. S. Mallo. Engineering, Environmental Science. 2011; Acid mine drainage (AMD) is one of the most significant environmental challenges facing the …
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Geology, geochemistry and biomaker evaluation of Lafia-Obi coal …
The Lafia-Obi area is underlain by rhythmic sequences of shale, sandstone and limestone with varying thicknesses of interbedded coal, inferring deposition under shallow marine conditions.
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Mining Of Lafia Obi Coal
Mining Of Lafia Obi Coal. COAL MINING AND THE ENVIRONMENTAL IMPACT OF. The impact of AMDs from Odagbo, Enugu and Lafiaobi coal mines in Kogi, Enugu and Nasarawa States, Nigeria respectively is reviewed in this section. A list of selected impacted areas in different continents is also presented in Table 2 Odagbo An analysis of drains …
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Gasification of Lafia-Obi Coal Using ANSYS Fluent As CAD …
In this paper, Lafia-Obi bituminous coal in the. Gasification, the thermo-chemical conversion of fuels to combustible gases has assumed prominence because of its many advantages which include greenhouse gas sequestration, controllability among others. In this paper, Lafia-Obi bituminous coal in the ...
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Analysis of clean coal technology in Nigeria for energy …
An analysis of clean coal technologies for the recovery of energy from Nigerian coals was carried out. The coal mines studied are Onyeama, Ogwashi, Ezimo, Inyi, Amasiodo, Okaba, Lafia-Obi, Owukpa Owukpa, Ogboyoga and Okpara. The estimated reserves of the ten coal deposit amount to 2.1 Gt, which is about 84% of the total coal …
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MINING OPPORTUNITIES IN NIGERIA; COAL MINING IN …
Available data show that Coal (mainly sub-bituminous steam Coals except for the Lafia-Obi bituminous Coking Coal) occurrences in Nigeria have been indicated in more than 22 Coalfields spread over 13 States of the Federation. ... Report Title: SMALL SCALE COAL MINING IN NIGERIA, THE PRE-FEASIBILITY REPORT. Report …
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The Combustion Profiles of the Lafia-Obi Coals: …
ABSTRACT. This paper aims to understand the combustion profiles of the coal samples in the Lafia-Obi axis, Middle Benue Trough (MBT), for consideration as a potential energy …
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Petrology, physicochemical and thermal analyses of …
The highest inertinite content is recorded in the Garin-Maiganga coal (53.68%), followed by the Lafia-Obi coal, and minor quantities occur in other coal samples. The inertinite macerals are dominated by fusinite and semifusinite (Fig. 5). Fusinite and semifusinite are, in part, derived from ancient fires in the coal-forming peat (Scott 1998 ...
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