Mining Of Lafia Obi Coal

Obi Lafia Coal Block • I-MINE

2021-7-20  Coal bearing beds (seams) within the Lower and Upper Coal Measures of the Agwu Formation. 20 Coal seams occur within the Lower Coal Measure while 16 are in the Upper Coal Measure. The deposit occurs within the Giza anticline and partly within the Obi syncline. Exploration. A geological and geophysical survey carried out (1:10,000).

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WASHABILITY AND FROTH FLOTATION TESTS OF LAFIA

2013-5-28  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, 1987). 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).

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Gasification of Lafia-Obi Coal Using ANSYS Fluent As CAD ...

2018-12-20  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

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Geology, geochemistry and biomarker evaluation of Lafia ...

2002-1-1  However, there are few published papers on the Lafia-Obi coal. Obaje and Obaje et al. described the petrographic and depositional environments of the coal bearing strata of the Awgu Formation, and also subdivided the coal beds and interseam sediments into three different coal facies, namely: (a) vitrinite–fusinite, (b) trimaceritic and (c) shaly coal facies, respectively.

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` Printed in Nigeria THE MENACE OF ACID MINE DRAINAGE:

2009-5-4  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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Computational fluid dynamics simulation of Lafia–Obi ...

2015-1-15  The objective of the present study is to numerically study the process of the heterogeneous combustion of the Nigerian Lafia–Obi coal particles in a fluidized-bed reactor for air- and oxy-fuel combustion. The coal was taken from the Lafia–Obi site in the MBT of Nigeria; the coal particle sizes varied from 10 mm to 25 mm.

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ENERGY OUTPUT ASSESSMENT OF LAFIA-OBI COAL IN A

ENERGY OUTPUT ASSESSMENT OF LAFIA-OBI COAL IN A FLUIDIZED BED COMBUSTOR E. O Ilyas, et al Nigerian Journal of Technology Vol. 37, No. 4, October, 2018 968 Figure 1: Electricity demand projection in Nigeria (Sambo, 2008) Therefore, its value must be monitored and maintained

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(PDF) Energy output assessment of Lafia-Obi coal in a ...

PDF On Nov 15, 2018, E.O. Ilyas and others published Energy output assessment of Lafia-Obi coal in a fluidized bed combustor Find, read and cite all the research you need on ResearchGate

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Analysis of clean coal in Nigeria for energy ...

2020-9-26  coal mines in Nigeria, namely Onyeama, Ogwashi, Ezimo, Inyi, Amasiodo, Okaba, Lafia-Obi, Owukpa Owukpa, Ogboyoga and Okpara. The estimated reserves of these coal mines are 2.1Gt, i.e.. about 84% of the total estimated reserves of the 2.5 Gt of coal. The coal mines are open cast (surface mining) and underground [1].

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Analysis of clean coal in Nigeria for energy ...

2018-4-1  Amasido coal has the highest methane generation rate followed by Onyeama, Lafia-Obi, Okpara, Ogboyoga, Amasiodo, Inyi, Okaba, Owukpa, Ezimo and lastly the Ogwashi coal mine. The difference in the methane generation rate can be attributed to the difference in the coal properties.

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Gasification of Lafia-Obi Coal using ANSYS Fluent as CAD ...

2018-5-18  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

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Emission and Combustion Characteristics of Lafia-Obi Coal ...

The 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 theperformance of Lafia-Obi in FBC.

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(PDF) Geomineralogical, Physiochemical, Thermal and ...

The Lafia Obi (LFB) coal deposit is located in the middle Benue Trough (MBT), whereas the Chikila (CHK) coal deposits are situated in the Upper Benue Trough (UBT).

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Processing Nigerian coal deposits for energy source ...

2018-2-26  Coal deposits of the Lafia-Obi are also sparingly exposed along the bank of River Dep in the village of Shankodi near Jangwa in Nasarawa State. The thickest seam is ca 0.5 m. Core drillings by the National Steel Raw Materials Exploration Agency indicate several subsurface seams with thicknesses of up to 5 m for a seam.

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Geology, geochemistry and biomarker evaluation of Lafia ...

Geology, geochemistry and biomarker evaluation of Lafia-Obi coal, Benue Trough, Nigeria. OLUGBENGA A EHINOLA. D. Oros. C. Ekweozor. OLUGBENGA A EHINOLA. D. Oros. C. Ekweozor. Related Papers. Aspects of organic geochemistry of Nigerian coal as a potential source-rock of petroleum. By Taofik Adedosu.

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Geochemical Characteristics of the Cretaceous Emewe–Efopa ...

2021-2-23  Obaje, N. G. (1997). Petrographic evaluation of the coking potential of the Cretaceous Lafia-Obi coal deposits in the Benue Trough of Nigeria. Journal of Mining and Geology, 43, pp. 4-7. Obaje, N. G., Ulu, O. K. Petters, S. W. (1999). Biostratigraphic and geochemical controls of hydrocarbon prospects in the Benue Trough and Anambra Basin ...

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Analysis of clean coal in Nigeria for energy ...

2020-9-26  coal mines in Nigeria, namely Onyeama, Ogwashi, Ezimo, Inyi, Amasiodo, Okaba, Lafia-Obi, Owukpa Owukpa, Ogboyoga and Okpara. The estimated reserves of these coal mines are 2.1Gt, i.e.. about 84% of the total estimated reserves of the 2.5 Gt of coal. The coal mines are open cast (surface mining) and underground [1].

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Multistage caustic leaching De-Ashing of Nigerian Lafia ...

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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Petrology, physicochemical and thermal analyses of ...

2020-3-2  The highest VM was observed in the Lafia-Obi coal, followed by Garin-Maiganga coal, and lowest VM of the Enugu coal. The VM of the analyzed coal samples (Except for the Enugu and Imiegba coals) is considerably higher than other Nigerian

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Amansiodo Coal Block • I-MINE

2021-8-7  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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INVESTIGATION: Despite 36 mining licences, 10,000MW coal ...

2019-12-24  While the former has a permit for coal, lead and zinc in Obi and Lafia, the later has a Small-scale Mining (SM) licence for coal in Lafia. A survey across their sites in the state showed nothing significant in mining activities. Further checks indicated that the coal licenses held by both firms were for the purpose of generating energy and ...

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Processing Nigerian coal deposits for energy source ...

2018-2-26  Coal deposits of the Lafia-Obi are also sparingly exposed along the bank of River Dep in the village of Shankodi near Jangwa in Nasarawa State. The thickest seam is ca 0.5 m. Core drillings by the National Steel Raw Materials Exploration Agency indicate several subsurface seams with thicknesses of up to 5 m for a seam.

More

Assessment of Some Nigerian Coals for Metallurgical ...

2013-12-24  profile for Lafia-Obi coal, indicating that the coal has a good coking potential. A good . Vol.7, No.4 Assessment of Some Nigerian Coals 305 metallurgical coal usually possesses a Gray-king profile between G1 to G9. Doho and Lamja coals have Gray-king type A and B profiles respectively which suggest that they are of poor ...

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COAL MINING AND THE ENVIRONMENTAL IMPACT OF

The impact of AMDs from Odagbo, Enugu and Lafia-obi 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) 3.1 Odagbo An analysis of drains from Odagbo coal mine was conducted. The levels of lead, nickel, cobalt,

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Physical and Plastic Properties of Three Nigerian Coals

Lafia-Obi coal has the lowest volatile matter of 22.25%, followed by Onyeama Sample with values of 34.97% and Garin Maiganga (Gombe) with 37.05% while percentage volatile matter for semi-cokes are 3.71% for Onyeama, 2.42% for Lafia-Obi and 5.21% for Garin Maiganga.

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A REVIEW OF TECHNICAL POTENTIAL FOR COAL

within the known coal areas at Enugu, Ezinmo, Owukpa, Okabba , and Oggboyega and later in the seventies at Lafia-obi. Udi mine, located at the foot of a range of Enugu hills, was the scene of the first ever Nigerian mining activity in 1906. Thereafter Oghete, Iveallal and Asaba in that order were worked and exhausted between 1917 and 1967.

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Assessment of Some Nigerian Coals for Metallurgical ...

In the quest for a search of a suitable coal deposit of metallurgical importance, the qualities of three Nigerian coal samples, Lafia-Obi, Doho and Lamja, were assessed for possible utilization in metallurgical coke production. Several parameters that determine coking quality, such as moisture content, ash, volatile matter, free swelling index, sulphur content, Gray-King coke test, dilatation ...

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Data evaluation of trace elements determined in Nigerian ...

High segregation of coal fly ash was observed, while metallurgical coal grouped together with high-ranking coals of Okaba, Enugu and Obi (Lafia). 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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Petrology, physicochemical and thermal analyses of ...

2020-3-2  The highest VM was observed in the Lafia-Obi coal, followed by Garin-Maiganga coal, and lowest VM of the Enugu coal. The VM of the analyzed coal samples (Except for the Enugu and Imiegba coals) is considerably higher than other Nigerian

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Longitude and latitude of maiganga coal mine

Longitude and latitude of maiganga coal mine Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Longitude and latitude of maiganga coal mine, quarry, aggregate, and different kinds of minerals.

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