scholarly journals Performance of Some Biocoal Briquettes Produced from Mixture of Sawdust and varying Nigeria Coals as Composite Domestic Fuel

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Joshua O Adekunle ◽  
Bayode J Olorunfemi ◽  
Samuel B Adejuyigbe
Keyword(s):  
Calorific Value ◽  
Volatile Matter ◽  
Proximate Analysis ◽  
Cassava Starch ◽  
Fixed Carbon ◽  
Heat Utilization ◽  
Binding Material ◽  
And Performance ◽  
Domestic Fuel ◽  
Proximate Analyses

Performance evaluation of biocoal briquettes from three different coal mines in Nigeria mixed with sawdust as composite domestic fuel was carried out. Samples of coals collected from Owukpa, Okpara, and Onyeama mines were pulverized and blended with sawdust at various constituent ratios of coal/sawdust of 0.0/100, 10/90, 20/80, 30/70, 40/60, 50/50 and 100/0.0. Cassava starch was used as binding material while calcium hydroxide was used for desulphurization. Tests carried out included proximate analyses, ultimate analyses, and performance analyses. Results showed that fixed carbon in all the coal samples ranges from the highest fixed carbon of 63.81% for Okpara (OK) to the lowest of 62.87% for Owukpa (OP70/30) while sawdust was 21.03%. The Onyeama Coal has 1.25% ash content compares with 5% for Owukpa. Onyeama coal contains the highest volatile matters of 29.61% while Owukpa biocoal briquette (OP50/50) has the highest percentage heat utilization of 88.61 and lowest specific fuel consumption of 0.31kg/kg.  Onyeama coal (ON90/10) has the highest calorific value of 33.25 MJ/kg. The addition of sawdust in the biocoal briquettes resulted in lower volatile matter, low hydrogen, high percentage heat utilized and low specific fuel consumption.Keywords- Biocoal briquette, sawdust, proximate analysis, ultimate analysis, fixed carbon

scholarly journals Physiochemical Properties of Cotton Stalk Biomass from Aricultural Residues

2015 ◽  
Vol 10 (1) ◽  
pp. 343-349 ◽  
Author(s):  
Dobariya Umesh ◽  
P Sarsavadiya ◽  
Krishna Vaja ◽  
Khardiwar Mahadeo
Keyword(s):  
Calorific Value ◽  
Volatile Matter ◽  
Proximate Analysis ◽  
Agricultural Residues ◽  
Ash Content ◽  
Cotton Stalk ◽  
Fixed Carbon ◽  
Physiochemical Properties ◽  
Feed Stock ◽  
Energy Conversion Process

The study was undertaken to investigate the properties of cotton stalk fuel from the agricultural residues. The whole cotton stalk plant is converted into shredded material with the help of cotton stalk shredder. The capacity of cotton stalk shredder machine is 218 kg/h. The proximate analysis of the shredded cotton stalk in terms of bulk density 34.92 kg / m3 moisture content 13.63 %, volatile matter 74.52 %, ash content (4.95 %, fixed carbon 20.53 % and calorific value of cotton stalk biomass (3827 cal/g) respectively. were showed that agricultural residues are the most potential and their quantitative availability, Since the aim by using shredded cotton stalk as feed stock for energy conversion process of the developed gasifier.

scholarly journals Analysis mixed characterization of Kalimantan coal and mangrove wood charcoal character as briquette raw material

2021 ◽  
Vol 921 (1) ◽  
pp. 012055
Author(s):  
R Rahman ◽  
B Azikin ◽  
D Tahir ◽  
S Widodo
Keyword(s):  
Moisture Content ◽  
Sulfur Content ◽  
Calorific Value ◽  
Volatile Matter ◽  
Proximate Analysis ◽  
Ash Content ◽  
Wood Charcoal ◽  
Fixed Carbon ◽  
Ultimate Analysis ◽  
Mangrove Wood

Abstract This study using three types of coal from East Kalimantan and South Sulawesi Mangrove Wood Charcoal which consisted of various compositions. In sample analysis using analysis, namely: proximate, ultimate, and calorific value. Proximate analysis: ash content, volatile matter, moisture content, fixed carbon; ultimate analysis: carbon and sulfur content and the calorific value using the bomb calorimeter method. The results of the proximate analysis showed that the fixed carbon content was obtained in the mixture of MWC 75% + KJA 25% = 52.45%, while the lowest was obtained at IC 100% = 32.86%; The highest volatile matter was obtained at KJA 100% = 44.23%, the lowest was at MWC 75% + KJA 25% = 31.90%, the highest ash content was IC 100% = 9.14% the lowest was at MWC 75% + KJA 25% = 5.94% and the highest moisture content was seen at IC 100% = 15.17% but MWC 75% + IC 25% = 9.52%. The results of the ultimate analysis showed that the lowest sulfur content was in the mixed variation of MWC 75% + KJA 25% = 0.168%, while the highest sulfur content was obtained at IC 100% = 0.874%. However, it was still in the low sulfur category <1. The highest calorific value is obtained by varying the composition at MWC 75% + IC 25% = 5919 cal/gram, while the lowest was obtained at KJA 100% = 4913 cal/gram. So based on this research, the addition of mangrove charcoal is very good for increasing the calorific value.

scholarly journals Analyses of Bio-Energy Properties from Malaysian Local Plants: Sentang and Sesendok

2018 ◽  
Vol 5 (1) ◽  
pp. 7-10
Author(s):  
Nazia Hossain ◽  
Rafidah Jalil
Keyword(s):  
Energy Production ◽  
Calorific Value ◽  
Volatile Matter ◽  
Proximate Analysis ◽  
Net Energy ◽  
Large Area ◽  
Tropical Country ◽  
Local Plants ◽  
Very High ◽  
Proximate Analyses

Various types of plants with several energy analysis methods have been experimented to produce bio-energy. In this study, two Malaysian local plants Sentang (Azadirachta excelsa) and Sesendok (Endospermum malaccense) have been used to determine their capability of bio-energy production. Our study focused on the analyses of bio-energy properties by using proximate analysis method separating moisture content (%), volatile matter (%), ash content (%), fixed carbon (%) and calorific value (MJ/kg) from Sentang and Sesendok. Proximate analyses of these plants proved lengthy flammability, very high amount of ignition, heat generation, net energy and negligible pollution effect. The calorific values for Sentang and Sesendok are 16.84 MJ/kg and 16.95 MJ/kg respectively. As Malaysia is tropical country mapping a large area of land with an evergreen plantation, so both trees Sentang and Sesendok species would be the efficient sources of bio-energy production.

Hydrogen and Syngas Generation from Gasification of Coal in an Integrated Fuel Processor

2014 ◽  
Vol 625 ◽  
pp. 644-647 ◽  
Author(s):  
Sujan Chowdhury ◽  
Abrar Inayat ◽  
Bawadi Abdullah ◽  
Abdul Aziz Omar ◽  
Saibal Ganguly
Keyword(s):  
Coal Gasification ◽  
Fixed Bed ◽  
Calorific Value ◽  
Volatile Matter ◽  
Proximate Analysis ◽  
Fixed Carbon ◽  
Gross Calorific Value ◽  
Fuel Processor ◽  
New Energy

Hydrogen is a clean and new energy carrier to generate power and effectively turned out through the gasification of organic material such as coal. The main objective of this manuscript is to present an analysis of the coal gasification for the generation of high-purity hydrogen in a lab-scale fixed-bed downdraft gasifier. Better understanding of the rank, formation, structure, composition and calorific value and method of analysis of the material is crucial for the proper utilization of these resources requires. Traditionally the quality of the Coal samples has been determined by their physical and proximate analysis, such as, bulk density, free swelling index, gross calorific value, sulfur, moisture, fixed carbon, volatile matter and ash content. In this study, coal is partially oxidized and ultimately converts into hydrogen rich syngas (CO and H2). As well, approximately 220 kg h−1 of coal would be gasified at 673–1073 K and 46.2 atm with the reactor volume 0.27m3 to obtain approximately 3.8×105 kcal h−1 of thermal energy during over 67% syngas generation with the generation of 110kW electrical powers.

Comparison Proximate Analysis and Heating Value between Cassava Rhizome and Perennial Wood

2011 ◽  
Vol 415-417 ◽  
pp. 1693-1696
Author(s):  
Jarinee Jongpluempiti ◽  
Kiatfa Tangchaichit
Keyword(s):  
Moisture Content ◽  
Volatile Matter ◽  
Proximate Analysis ◽  
High Moisture Content ◽  
High Moisture ◽  
Fixed Carbon ◽  
Heating Value ◽  
Residue Biomass ◽  
Cassava Crop ◽  
Proximate Analyses

Cassava is one of the most important crops in Nakhon Ratchasima province which grows the most cassava in the Northeast of Thailand. Therefore, a large amount of cassava rhizome is left in the field after harvest. The objectives of this research were to study the potential of using residue biomass from the cassava crop i.e. cassava rhizomes. The physical properties and heating value of the cassava rhizomes were evaluated and compared with perennials. The analysis consisted of proximate analysis to measure moisture content, ash, volatile matter and fixed carbon. Heating values were measured using the IKA*C5003 automatic bomb calorimeter. The results were that for high moisture content of about 49-52% the cassava rhizomes had properties inferior to the perennials. When the moisture content of the rhizomes was reduced until around 12%, the properties were equivalent to those of wood samples that had about 2% moisture content. The proximate analyses gave ash 1.8-2.8%, volatile matter 72-75% and fixed carbon 9-13%. Moreover, its average heating values were around 17.08 MJ/kg, while the wood samples were around 17.78 MJ/kg. It appears that cassava rhizome has a high potential as an energy source. Using it to replace wood fuel is possible but it is necessary to reduce the moisture content to an appropriate level.

scholarly journals Quality Improvement on Briquettes Made of Oil Palm Empty Fruit Bunches (EFB) Using of Brown Algae Adhesive

2020 ◽  
Vol 15 (1) ◽  
pp. 38-44
Author(s):  
Ana Dewita ◽  
M. Faisal ◽  
Asri Gani
Keyword(s):  
Oil Palm ◽  
Brown Algae ◽  
Thermal Characteristics ◽  
Calorific Value ◽  
Volatile Matter ◽  
Proximate Analysis ◽  
Ash Content ◽  
Fixed Carbon ◽  
Empty Fruit Bunches

The charcoal produced from oil palm empty fruit bunches pyrolysis can be utilized as environmentally friendly alternative fuel briquettes. This research aimed at improving the quality of these EFB briquettes using brown algae adhesive (alginate). The adhesive was added at 2.5%, 5%, 7.5%, and 10%. Proximate analysis was then performed on EFB and the brown algae. The best quality briquettes were obtained by adding brown algae adhesive at 2.5% concentrate, which resulted in a calorific value of 21,405 J/g. Other characteristics such as moisture content, ash content, volatile matter, and fixed carbon were found to be 7.4%, 4.9%, 79%, and 8.7%, respectively. In addition, the thermal characteristics such as density, flash point, and burning time were found at 0.96 g/cm3, 5.1 second, and 300 minutes, respectively.

scholarly journals Valorization of briquettes fuel using Pinus spp. sawdust from five regions of Mexico

BioResources ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. 2249-2263
Author(s):  
María Alejandra Ramírez-Ramírez ◽  
Artemio Carrillo-Parra ◽  
Faustino Ruíz-Aquino ◽  
Luis Fernando Pintor-Ibarra ◽  
Nicolás González-Ortega ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Impact Resistance ◽  
Resistance Index ◽  
Calorific Value ◽  
Volatile Matter ◽  
Ash Content ◽  
Fixed Carbon ◽  
Volumetric Expansion ◽  
Pinus Spp ◽  
The Impact

This research characterized briquettes made with Pinus spp. sawdust without the use of additives. For this purpose, 19 samples of sawdust from different wood industries located in five states of the Mexican Republic were used. The densification process was carried out in a vertical hydraulic piston laboratory briquette machine. The briquettes were made with 40 g of sawdust, at 50 °C, 20 kPa and pressing for 5 min. The results obtained varied as follows: moisture content (4.1% to 7.2%), density (813.9 to 1,014.4 kg/m3), volumetric expansion (7.4% to 37.3%), compressive strength (4.9 to 40.8 N/mm), impact resistance index (46.7% to 200%), ash (0.1% to 1.1%), volatile matter (82.9% to 90.7%), fixed carbon (8.9% to 16.4%), and calorific value (20.5 to 22.8 MJ/kg). The density of the briquettes was within the “acceptable” classification (800 to 1,200 kg/m3). It was observed that, the higher the density, the lower the volumetric expansion, the higher the compressive strength, and the higher the impact resistance index. According to the ash content, the briquettes could achieve international quality. Due to high volatile matter values, rapid combustion of the briquettes with little generation of toxic smoke would be expected. Fixed carbon and calorific value results were acceptable.

scholarly journals Characteristics of Woody Cutting Waste Briquette with Paper Waste Pulp as Binder

2020 ◽  
Vol 190 ◽  
pp. 00030
Author(s):  
Qurrotin Ayunina Maulida Okta Arifianti ◽  
Azmi Alvian Gabriel ◽  
Syarif Hidayatulloh ◽  
Kuntum Khoiro Ummatin
Keyword(s):  
Moisture Content ◽  
Ignition Time ◽  
Combustion Process ◽  
Calorific Value ◽  
Volatile Matter ◽  
Proximate Analysis ◽  
Hydraulic Press ◽  
Combustion Characteristic ◽  
Paper Waste ◽  
Iron Mold

The current research aimed to increase the calorific value of woody cutting waste briquette with paper waste pulp as binder. There were three different binder variation used in this study, they are 5 %, 10 %, and 15 %. To create a briquette, a cylindrical iron mold with diameter of 3.5 cm and height of 3 cm and a hydraulic press with 2 t power were applied. The physical characteristics of the combination woody waste briquette and paper waste pulp, such as moisture content, ash content, volatile matter and carbon fix were examined using proximate analysis. The calorific value of briquetted fuel was tested by bomb calorimeter. The combustion test was performed to determine the combustion characteristic of briquettes, for example initial ignition time, temperature distribution, and combustion process duration. The general result shows that the calorific value of briquette stood in the range of 4 876 kCal kg–1 to 4 993 kCal kg–1. The maximum moisture content of briquette was 5.32 %. The longest burning time was 105 min.

scholarly journals PERBANDINGAN NILAI BAKAR BRIKET BATUBARA DAN BRIKET ARANG (CAMPURAN CANGKANG BINTARO (Cerbera Manghas) DAN BAMBU BETUNG (Dendrocalamus Asper)

2019 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Ida Febriana ◽  
Zurohaina Zurohaina ◽  
Sahrul Effendy
Keyword(s):  
Alternative Energy ◽  
Bituminous Coal ◽  
Raw Materials ◽  
Calorific Value ◽  
Volatile Matter ◽  
Carbonization Temperature ◽  
Fixed Carbon ◽  
Alternative Energy Source ◽  
Tapioca Flour ◽  
Cerbera Manghas

Charcoal briquettes are smokeless fuels which are a type of solid fuel whose fly substance is made low enough so that the smoke generated on its utilization will not interfere with health. In this study charcoal briquettes were made from bintaro shell waste and betung bamboo using tapioca flour adhesives. This study aims to obtain the best quality sub-bituminous coal briquettes and coal briquettes. In this study the carbonization temperature used was 400ᵒC and the composition of raw materials for bintaro shells and betung bamboo was 50:50, the composition of raw materials for sub-bituminous coal and straw 90:10. The method used in this research is experiment or experimental method, with fuel value collection using ASTM D5865-03 standard. The results obtained from this study are for charcoal briquettes with 4000C carbonization temperature Inherent Moisture value of 1.91%, ash 2.29%, volatile matter 23.79%, fixed carbon 72.01% and calorific value 5878.7 kal / gr, and for coal briquettes obtained value Inherent Moisture 0.52%, ash 4.42%, volatile matter 17.98%, fixed carbon 77.08% and calorific value 7152.6 kal / gr. The fuel value of coal briquettes is greater than that of charcoal briquettes, but the combustion value of charcoal briquettes includes a good calorific value as an alternative energy source, and is in accordance with the SNI standard of 5000 kal / gr, even close to the Japanese standard 6000 cal / gr. Keywords: Bintaro, briquette, calorific value

ANALISIS KUALITAS PEMBAKARAN BRIKET BATUBARA DENGAN METODE KARBONISASI BERDASARKAN PARAMETER KUALITAS BRIKET, UKURAN PARTIKEL DAN KOMPOSISI

2018 ◽  
Vol 4 (01) ◽  
Author(s):  
Didi Kasi Setiawan ◽  
Agus Triantoro ◽  
Annisa Annisa
Keyword(s):  
Calorific Value ◽  
Volatile Matter ◽  
Ash Content ◽  
Fixed Carbon ◽  
American Society

Briket batubara merupakan bahan bakar padat yang mempunyai kelayakan teknis dan ketersedian batubara cukup banyak di Indonesia. Permasalahan yang sering di jumpai dalam penggunaan briket batubara sebagai bahan bakar energi adalah lamanya penyalaan, aroma yang tidak sedap pada saat dibakar, dan daya rekat briket yang tidak bagus sehingga briket mudah pecah. Untuk mengatasi masalah tersebut perlu mengetahui pengaruh komposisi dan ukuran partikel briket batubara terhadap kualitas pembakaran serta kualitas briket batubara. Dalam hal ini, diperlukan analisis laboratorium yang hasilnya dapat digunakan untuk mengklasifikasikan tingkatan kualitas briket batubara.Metode analisis yang digunakan untuk kualitas briket yaitu American Society for Testing and Materials (ASTM) meliputi pengujian moisture, ash content, volatile matter, calorific value, fixed carbon dan karbonisasi untuk peningkatan kualitas, meliputi moisture, volatile matter serta calorific value. Berdasarkan hasil pengujian yang telah dilakukan dapat disimpulkan bahwa proses karbonisasi batubara dapat menurunkan kandungan kualitas batubara inherent moisture adb (17,1 % - 6,38%) dan meningkatkan nilai calorific value cal/g adb (5462 - 6261), waktu nyala api (0:23:14 – 0:47:06), waktu nyala bara (0:44:56 – 1:23:10) serta durasi pembakaran (1:08:10 – 2:10:16). Kata-kata kunci: Briket, Batubara, Karbonisasi, Kualitas Batubara.

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