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 …
(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 …
(PDF) Energy output assessment of Lafia-Obi coal in a …
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Nigerian Coal Corporation
Available data show that coal (mainly sub-bituminous stream coals except for the Lafia-Obi bituminous coking coal) is available in more than 22 coalfields spread over 13 States in Nigeria. The proven coal reserves are about 639 million metric tonnes while the inferred reserves are about 2.75billion metric tonnes.
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
Characterization of Coal Formations in the Middle Benue …
The Lafia-Obi coal 2 has an average TOC of 35.9%, HI of 56.12HC/gTOC, OI of 30.61mgCO /gTOC and Tmax of 451oC. Combustion test 2 ... 24 Journal of Mining and Geology Vol. 56(1) 2020.
THERMAL DECOMPOSITION OF LAFIA OBI …
The gasification of Lafia-Obi coal and thermal decomposition analysis was done based on ISO/TR 21916:2021. The coal sample was MATERIALS AND METHODS Material Preparation Methods
ENERGY OUTPUT ASSESSMENT OF LAFIA-OBI COAL IN
country's coal mining industry to provide fuel for power generation and domestic use. According to [15], the Kogi and the Benue (Orupka, Ezimo, Lafia-Obi) district can each support a coal-fired power plant with an ultimate capacity of approximately 3,500 MW. Further report [15] showed a good probability that
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 …
(PDF) Geology, geochemistry and biomarker …
The La®a-Obi area is underlain by rhythmic sequences of shale, sandstone and limestone with varying thicknesses of interbedded coal, inferring deposition under shallow marine conditions. The ash and moisture …
Gasification of Lafia-Obi Coal Using ANSYS Fluent As …
Subsequent prospecting was conducted and twenty-two coal mine sites/deposits were discovered with varying reserves. Lafia/Obi coal is one of them with proven reserve of 21.42 million tonnes [3]. Lafia/Obi coal is bituminous and this grade of coal is important as fuel because it burns slowly, provides a lot of heat and is
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).
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.
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. …
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 …
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
Emission and Combustion Characteristics of Lafia-Obi Coal …
The technology of fluidized bed coal combustion (FBC) and its advantages over conventional coal burning systems is now well established and is extensively reported in the literature. There is also some emphasis in literature about the suitability of Lafia-Obi coal in FBC. However, there is little quantitative or qualitative information on …
WASHABILITY AND FROTH FLOTATION TESTS …
Lafia-Obi coal, the only local coal with good coking properties is however laden with excessive ash and sulphur contents of about 26.3% and 2.3% respectively (Taskforce, …
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 …
Petrographic evaluation of the depositional environments of …
Depositional environments of the then coal facies in the Obi/Lafia area based on maceral ass oions and petrographic indices (modified from Maxrhioni and KallQputh, l Kalth et al., l. Fig. 6. Comments and interpretation of the diagram are given in the next section. Petrographic facies of the Obi/Lafia area The vitrinite jusinite coal facies.
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 ...
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 ...
Proximate and Ultimate Analysis of Lafia-Obi coal
Download scientific diagram | Proximate and Ultimate Analysis of Lafia-Obi coal from publication: Energy output assessment of Lafia-Obi coal in a fluidized bed combustor | Fluidization, Coal and ...
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 …
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.
Petrographic evaluation of the depositional environments of …
Semantic Scholar extracted view of "Petrographic evaluation of the depositional environments of the Cretaceous Obi/Lafia coal deposits in the Benue trough of Nigeria" by N. Obaje et al. ... Modes of occurrence for greater sustainability of mining. Segun Ajayi Akinyemi Bemgba Bevan Nyakuma +7 authors L. Silva. Environmental …
THERMAL DECOMPOSITION OF LAFIA OBI …
materials (ASTM) standards to obtain proximate and ultimate Analysis of samples of Lafia-obi coal. They reported that data obtained from combustion Lafia-obi coal is useful in application were energy generator is critical. Seeker et al. (1981) studied the thermal decomposition of pulverized coal.The physical, thermal
NSRMEA DG Hails FG's Commitment to Revive Steel Sector, …
For Obi-Lafia coal to be economically minable, In-seam exploration is needed to determine the feasibility of mining this coal resource; bulk sampling for pilot testing and laboratory tests/analysis to ascertain the suitability of the coal for use as feed for Ajaokuta coke ovens," he noted.
Processing Nigerian coal deposits for energy source
No core drilling was undertaken, and subsurface information is not available. There are also no operating mines. Coal deposits of the Lafia-Obi are also sparingly …
