Combustion characteristics of spent coffee ground mixed with crude glycerol briquette fuel

Potip, Sarulpop; Wongwuttanasatian, Tanakorn

doi:10.1080/00102202.2018.1482888

Cited by 19 publications

(23 citation statements)

References 31 publications

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“…Nosek et al, 2020 reported the same improvement when SCG is mixed with sawdust to form 50SCG/50sawdust which has an LHV of 20.06 MJ/kg compared to the 17.15 MJ/kg obtained when 100% sawdust is used. On the other hand, the positive effect of adding crude glycerol (by-product of transesterification reaction) to increase the HHV of SCG has been demonstrated by (Potip & Wongwuttanasatian, 2018 ). FPs of 90%SCG + 10% glycerol and 95%SCG + 5% glycerol have HHV of 21.55 and 21.21 MJ/kg, respectively, compared to 21.14 MJ/kg of SCG.…”

Section: Characterization and Potential Of Scg As Fpsmentioning

confidence: 99%

“…These characteristics include pellet size, strength and durability, moisture content, calorific value, energy density (ED), bulk density (BD), morphology, and porosity (Jeguirim et al, 2014 ; Sheng & Azevedo, 2005 ). The available literature about the production of FPs from different raw biomass residues is abundant (Miranda et al, 2015 ) while from the SCGs has been reported in (Kang et al, 2017 ; Kristanto & Wijaya, 2018 ; Limousy et al, 2013 ; Nosek et al, 2020 ; Potip & Wongwuttanasatian, 2018 ) and DSCG in (Deligiannis et al, 2011 ; Haile, 2014a , 2014b ). This is attributed to their excellent chemical properties compared to other crops and biomass residues (Atabani, Al-Muhtaseb, et al, 2019 ).…”

Section: Characterization and Potential Of Scg As Fpsmentioning

confidence: 99%

“…The efficient combustion of FPs is primarily affected by the quality of the FPs (physical and chemical qualities) and the design of the combustion system. Many studies dealt with the combustion analyses of SCG and other biomass residues (Kang et al, 2017 ; Limousy et al, 2013 ; Nosek et al, 2020 ; Pilusa et al, 2013 ; Potip & Wongwuttanasatian, 2018 ). However, it has been observed that no studies dealing with DSCG were found.…”

Section: Characterization and Potential Of Scg As Fpsmentioning

confidence: 99%

See 2 more Smart Citations

Emerging potential of spent coffee ground valorization for fuel pellet production in a biorefinery

Atabani

Mahmoud

Aslam

et al. 2022

Environ Dev Sustain

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Section: Characterization and Potential Of Scg As Fpsmentioning

confidence: 99%

Section: Characterization and Potential Of Scg As Fpsmentioning

confidence: 99%

Section: Characterization and Potential Of Scg As Fpsmentioning

confidence: 99%

See 1 more Smart Citation

Emerging potential of spent coffee ground valorization for fuel pellet production in a biorefinery

Atabani

Mahmoud

Aslam

et al. 2022

Environ Dev Sustain

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“…Recently, many studies have analyzed SCG characteristics for energy use in boiler systems [32,33] and the use of binders to increase SCG durability [34]. Kang et al [35] investigated SCG combustion characteristics in a small boiler system (6.5 kW based on the input low heating value (LHV)).…”

Section: Introductionmentioning

confidence: 99%

Heating and emission characteristics of briquettes developed from spent coffee grounds

Kim

Park

Hong

2021

Environmental Engineering Research

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The development of biomass fuels to replace fossil fuels is on the rise, with increased bioenergy research on spent coffee grounds (SCG). However, no biofuel can currently replace anthracite briquettes. Unlike ordinary solid fossil fuels, anthracite briquettes are heated for a long time and retain the same form after combustion, making them easier to transport. In this study, binders are used to develop a solid fuel that allows SCG to retain their shape after combustion. Specifically, bottom ash (BA) and kaolinite clay (KC) are mixed in different ratios then processed with a press machine and cured to produce briquettes that exhibit zero damage, even after combustion. The results show that the optimal composition for SGC briquette production according to fuel quality and ash shape retention is 20 wt.% SCG; 71 wt.% BA; 9 wt.% KC; and 15 wt.% solution with a 20:1 water/Ca(OH) 2 mixing ratio. This results in a low heating value of 15.8 MJ/kg, 86.82% durability before combustion, and 99.46% durability after combustion. In addition, combustion tests with SCG briquettes confirmed their potential as an environmentally friendly alternative fuel to anthracite briquettes.

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“…Biodiesel is the eventual replacement for the diesel oil to power multi-strokes Diesel-engine. This future-proof biofuel is replete with valuable economic, environmental, and social Development and implementation of strategies targeting downstream steps to manage the surplus of glycerol wisely to ensure biodiesel sustainable to manufacture and competitive with diesel oil are therefore an urgent matter [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Biomass-glycerol briquettes are not necessarily mechanically stable and energetically effective

Moreira

Viana

Moreira

et al. 2020

Waste Dispos. Sustain. Energy

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The re-use of glycerol from biodiesel industry as an alternative lubricant for making high-performance briquettes is usual. However, the technical performance of this agro-industrial residue is not consistent. This study outlines, accordingly, the real risk of introducing glycerol into the co-briquetting of highly caloric by-products of energy-crops. The production of hybrid briquettes consisted of pressing mixtures of residues of sugarcane and sorghum with the liquid additive at 10, 20, and 30 wt.% in bench-scale hydraulic piston presser machine. Irrespective of the blend, briquettes containing the supplement at the highest level as part of their composition ended up being much more hygroscopic (20.10%) and less energetic (3.15 GJ m −3). The explanation for the negative impact of glycerol on the thermomechanical behavior of briquettes would be overconcentration of additive capable of effectively defying compacting biomass. The degree of compaction during co-briquetting has likely gone down quickly with a maximizing level of glycerol. As long as the additive is not able to lubricate the feedstock suitably, improbability of biomass particles to successfully bond together to form themselves into mechanically stable and energetically effective briquettes is large. Besides lower density (273.80 kg m −3) and higher relaxation (22.75%), briquettes with glycerol at 30 wt.% generally were aesthetically unpleasing. Practically, these products resisted no longer to handling, transportation, and storage. They lost their shape easily during emptying and shifting them, thus, releasing larger quantities of biomass to the environment. Preliminary evidence of high-viscosity glycerol capable of limiting safe and effective production of high-performance briquettes for heating and power exists.

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Combustion characteristics of spent coffee ground mixed with crude glycerol briquette fuel

Cited by 19 publications

References 31 publications

Emerging potential of spent coffee ground valorization for fuel pellet production in a biorefinery

Emerging potential of spent coffee ground valorization for fuel pellet production in a biorefinery

Heating and emission characteristics of briquettes developed from spent coffee grounds

Biomass-glycerol briquettes are not necessarily mechanically stable and energetically effective

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