Thermal Analyses of Briquette Fuels Produced from Coal Dust and Groundnut Husk

Ikelle, Ikelle I.; Sunday, Nworu Jerome; Nworie, Felix Sunday; John, J. Godwin; Okechukwu, Ogbuagu Josephat; Elom, Nwabueze

doi:10.2478/acmy-2020-0004

Cited by 14 publications

(9 citation statements)

References 5 publications

(3 reference statements)

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“…And, the most optimum blend was found to be 40% of cassava stalk char and 60% of coal char; having fuel properties as follows: MC-3.36 %, AC-25.13 %, VM-30.15 %, FC-41.36 %, CV-25.9 MJ/kg, water boiling test-2.98 min, burning time-22.79 g/min, ignition time-36.68 s and compressive strength-10.78 N/mm 2 . Here, the coal dust used in this study presented its proximate composition as MC-3.25 %, AC-10.12 %, VM-20.12 %, and CV-29.57 MJ/kg (Ikelle et al, 2020). Again, Wilaipon, 2008 used cassava stalk for developing briquettes with their densities ranging between 0.40-0.77 g/cm 3 ; and concluded that this density increased with compaction pressure during briquetting (Wilaipon, 2008).…”

Section: Cassava Stalksmentioning

confidence: 75%

“…And Accordingly, Ikelle et al, 2020 used ground groundnut husk and coal dust for developing compound briquettes, with starch as binder and Ca(OH)2 as de-sulphurizing agent; and was compacted using manual hydraulic briquetting machine. Post compaction, these briquettes were evaluated for its fuel properties; and were measured as follows-MC: Eventually, all reported properties were in good agreement with thermal properties of the biobriquettes (Ikelle et al, 2020).…”

Section: Groundnut Shell/husksmentioning

confidence: 95%

See 1 more Smart Citation

High Potential Organic Feedstocks for Production of Renewable Solid Briquettes-A Comprehensive Review

Srinivasan¹,

Mahajan²,

Seth³

et al. 2022

Preprint

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Briquetting of biomass is an ideal technique for improvising both its volumetric and net energy density; besides, serving as an effective means for reducing pollution. In general, numerous biomass and organic by-products are discarded as wastes, citing their non-edibility, composition of chemical compounds present in their raw form, in addition to their zero usage value. Yet, these biomass wastes hold significant heating values, which promote them into promising solid biofuels, either in their existing or pre-treated form. Accordingly, this review article discusses about the various biomasses used as raw feedstock for briquetting, besides summarising the works carried out in relevance to their respective briquettes. In addition, proximate and lignocellulosic composition of these biomasses, and their pre-treatment techniques followed to prepare them for briquetting, have also been discussed. This study suggested that the heating value of biomasses ranged between 10-20 MJ/kg, whilst, their briquettes reported between 15 and 25 MJ/kg; thereby citing their potential as viable replacement for existing fossil coals. Besides, factors affecting different thermal and physicochemical properties of these briquettes have also been studied and concluded that these properties play a crucial role in deciding the overall quality of the briquettes. Ultimately, this study proposed that any biomass with good calorific value and lignin content can be processed into briquettes with good strength and durability; however, the choice of biomass will also be accounted for by its availability, geographical distribution, and handleability.

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Section: Cassava Stalksmentioning

confidence: 75%

Section: Groundnut Shell/husksmentioning

confidence: 95%

High Potential Organic Feedstocks for Production of Renewable Solid Briquettes-A Comprehensive Review

Srinivasan¹,

Mahajan²,

Seth³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Moisture: as known, the quality of briquettes as a fuel largely depends on their moisture content. From various sources [7,9,23], a conclusion can be drawn regarding the range of values of this characteristic for different organic waste (from 6 % to 10 %). The moisture content of the samples studied by us lies in the range from 3.86 to 8 %, which does not contradict the results of similar studies of scientists.…”

Section: Analysis Of the Main Characteristics Of The Investigated Fue...mentioning

confidence: 99%

“…Plant biomass, due to such basic qualities as renewability, environmental friendliness in comparison with other types of fuels, lack of impact on the balance of free carbon in the atmosphere, is considered one of the most «noble» Energy types of fuel and observed in many countries as a promising source of energy for the near future. For these purposes, vegetable waste can be used in its pure form [3], using a binder [4,5] and pre-heat treatment [6], as well as in combination with coal dust [7]. The use of a binder and heat treatment of raw materials improves the strength and operational properties of briquettes, makes them compact and convenient for transportation, but at the same time complicates the process of manufacturing briquettes and increases their cost due to the use of additional devices and energy sources.…”

Section: Introductionmentioning

confidence: 99%

Research and analysis of characteristics of fuel from organic and industrial waste

2022

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The article is devoted to the actual problem of utilisation of agricultural and industrial waste as a solution to the problem of replacing traditional energy sources. As an alternative fuel, researchers suggest using briquettes from biomass (leafy debris, waste paper, sunflower and buckwheat husks), as well as their combination with industrial waste (coal dust). The choice of these sources of raw materials is determined by their presence in the north-eastern part of Kazakhstan. Studies of the physical and mechanical and thermophysical characteristics of fuel briquettes from organic mass and bio-charcoal briquettes were carried out. The studies showed the following results: the moisture content of the samples we studied lies in the range from 3.86 to 8 %; ash content of briquettes from vegetable raw materials varies from 2.05 % to 3.6 %, combined briquettes from foliage and coal dust varies from 10 % to 14 %; average density values varies from 979.91 to 1172.63 kg/m3; mechanical strength is in the range from 90 to 100 %; the yield of volatile studied samples ranges from 9 to 21.4 %. Analysis of the obtained characteristics of fuel briquettes demonstrated that they meet the requirements of existing standards. Herewith, the lower calorific value of briquettes (15290‑19048 kJ/kg) is comparable to the calorific value of coal from the Ekibastuz deposit. The authors studied the influence of the parameters of the briquetting process on the briquette’s strength characteristics from leaves and waste paper, and obtained a regression dependence of these briquette’s calorific value on their characteristics. The analysis of regression dependencies showed that the pressure and pressing time have the greatest influence on the briquette strength, and its composition, i.e., the ratio of leaves and waste paper in the feedstock, has the greatest influence on the lower calorific value

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“…However, these biomasses have been reported to have ash compositions that may weaken its usefulness for energy generation. Hence, the need to use biomass as a partial replacement for fossil fuel (coal) in energy generation 11,[13][14][15] . The ash content describes the product of incomplete combustion, which may be majorly minerals but could still contain some amount of organic or other oxidizable residues 16 .…”

mentioning

confidence: 99%

Ash analyses of bio-coal briquettes produced using blended binder

Adeleke

Odusote

Ikubanni

et al. 2021

Sci Rep

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The behaviour of ash of fuel affects its thermal efficiency when in use. The ash analyses of bio-coal briquettes developed from lean grade coal and torrefied woody biomass have received limited intensive study. Therefore, the present study aims at analysing the ashes of briquette made from lean grade coal and torrefied woody biomass using blended coal tar pitch and molasses as the binder. Bio-coal briquettes were produced from coal and torrefied biomass in various hybrid ratios. Ashing of various briquettes was done in a muffle furnace at 850 °C for 3 h. Mineral phases of the ash were identified using an X-ray Diffractometer (XRD), while the mineral oxides were obtained using an X-ray Fluorescence Spectrometer. The AFT700 Furnace was used with its AFT700 software to evaluate the ash fusion temperatures of the ashes. The XRD patterns look similar, and quartz was found to be the dominant mineral phase present in the raw coal and bio-coal briquettes. The SiO2 (57–58%), Al2O3 (19–21%), and Fe2O3 (8–9%) were the major oxides observed in the ashes. The final fusion temperatures of the ashes range from 1300–1350 °C. The compositions of the ashes of the bio-coal briquettes are classified as detrital minerals. It was concluded that the addition of torrefied biomass (≤ $$10\%)$$ 10 % ) and blended binder ($$\le $$ ≤ 15%) to coal gave a negligible impact on the ashes of the resultant bio-coal briquettes.

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Thermal Analyses of Briquette Fuels Produced from Coal Dust and Groundnut Husk

Cited by 14 publications

References 5 publications

High Potential Organic Feedstocks for Production of Renewable Solid Briquettes-A Comprehensive Review

High Potential Organic Feedstocks for Production of Renewable Solid Briquettes-A Comprehensive Review

Research and analysis of characteristics of fuel from organic and industrial waste

Ash analyses of bio-coal briquettes produced using blended binder

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