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Physical and mechanical characteristics of composite briquette from coal and pretreated wood fines

International Journal of Coal Science & Technology 2021年第5期8卷 1088-1098页

作者： Adekunle Adeleke Jamiu Odusote peter ikubanni Olumuyiwa Lasode Madhurai Malathi Dayanand Pasawan Department of Mechanical Engineering Landmark UniversityOmu-AranNigeria Department of Materials and Metallurgical Engineering University of IlorinIlorinNigeria Department of Mechanical Engineering University of IlorinIlorinNigeria Metal Extraction and Recycling Division National Metallurgical LaboratoryJamshedpurIndia

Melina wood torrefied at 260℃ for 60 min was agglomerated with lean grade coal fines into composite briquettes using pitch as *** biomass(3%-20%)and coal fines(80%-97%)were blended together to produce the composite briquettes under a hydraulic press(28 MPa).The briquettes were cured at 300℃.Density,water resistance,drop to fracture,impact resistance,and cold crushing strength were evaluated for the composite *** proximate,ultimate,and calorific value analyses were carried out according to different ASTM *** studies were carried out using scanning electron microscope and electron probe microanalyzer equipped with energy dispersive *** Transform Infrared Spectrophotometer(FTIR)was used to obtain the functional groups in the raw materials and *** density of the composite briquettes ranged from 0.92 to 1.31 g/cm^(3) after *** with95%).The highest cold crushing strength of 4 MPa was obtained for briquettes produced from 97%coal fines and 3%torrefied *** highest drop to fracture(54 times/2 m)and impact resistance index(1350)were obtained for the sample produced from 97%coal and 3%torrefied *** fixed and elemental carbons of the briquettes showed a mild improvement compared to the raw *** peaks from FTIR spectra for the briquettes shows the presence of aromatic C=C bonds and phenolic OH *** composite briquettes with up to 20%torrefied biomass can all be useful as fuel for various applications.

关键词： Composite briquettes Lean grade coal Torrefied biomass Physico-mechanical properties Combustion properties

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Nigerian Biomass for Bioenergy Applications:A Review on the Potential and Challenges

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Journal of Renewable Materials 2023年第12期11卷 4123-4141页

作者： Adekunle A.Adeleke Nzerem Petrus Salihu Ayuba Asmau M.Yahya peter P.ikubanni Ikechuckwu S.Okafor Stephen S.Emmanuel Adebayo I.Olosho Ademidun A.Adesibikan Department of Mechanical Engineering Nile University of NigeriaAbuja900001Nigeria Department of Petroleum and Gas Engineering Nile University of NigeriaAbuja900001Nigeria Department of Mechanical Engineering Landmark UniversityOmu-Aran251103Nigeria Department of Industrial Chemistry University of IlorinIlorin240003Nigeria

Nigeria,often referred to as“the giant of Africa,”boasts a sizable population,a thriving economy,and abundant energy ***,Nigeria has yet to fully harness its renewable energy potential,despite its enormous capacity in this *** goal of this review paper is to thoroughly examine the difficulties and untapped opportunities in utilizing biomass for bioenergy production in ***,Nigeria generates substantial volumes of biomass annually,primarily in the form of agricultural waste,which is often either discarded or burned inefficiently,resulting in significant ecological and environmental ***,an efficient approach to reducing pollution and transforming waste into wealth involves converting these biomass resources into *** work critically examines the status of biomass utilization for energy applications in Nigeria and highlights the bottlenecks that impede its widespread *** review emphasizes the economic and ecological advantages of biomass utilization over traditional waste treatment ***,it underscores the appeal of biomass as an industrial fuel source,particularly considering the current high cost of fossil fuels in contemporary *** literature on biomass,energy,agricultural waste,fossil fuel,and calorific value in the context of Nigeria was reviewed by utilizing a thorough search technique in key scientific *** analysis did not include any non-English *** findings of this research provide valuable insights into the challenges faced in maximizing Nigeria’s biomass potential and offer strategic recommendations to promote the use of biomass for bioenergy *** review paper will assist a wide range of local and international readers,as well as industries interested in green and bioenergy,in making informed decisions regarding the most suitable types of biomass for biofuel production.

关键词： Nigerian biomass bioenergy policy support corncob infrastructural development

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