Assessment of the Physical and Energetic Properties of Fuel Pellets Made from Sage Waste Biomass with the Addition of Rye Bran

Jadwisieńczak, Krzysztof; Obidziński, S.; Choszcz, D.

doi:10.3390/ma16010058

Cited by 4 publications

(3 citation statements)

References 70 publications

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“…This may be important concerning the potential use of pellets obtained from these raw materials for energy purposes. The increased sulfur and nitrogen content in the fuel are linked to the release of oxides of these elements into the atmosphere during their combustion [45,46]. Comparing the heating value (LHV) for different biomass types, it was found that bakery waste had a comparable heating value to rye straw [47,48], rapeseed straw [46,49], and spruce sawdust [50].…”

Section: Properties Of Raw Materials and Mixturesmentioning

confidence: 99%

The Effect of Bakery Waste Addition on Pine Sawdust Pelletization and Pellet Quality

Obidziński,

Szyszlak-Bargłowicz,

Zając

et al. 2024

Energies

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This paper presents research findings on the pelleting process of pine sawdust using bakery waste in a pelletizer. The addition of bakery waste (white wheat–rye bread, whole-grain rye bread, and pumpkin bread) to pine sawdust had a beneficial effect on the kinetic strength of the pellets obtained, an increase of up to approximately three percentage points. The density of pellets with the addition of bakery waste also increased, while the bulk density of the pellets decreased. The addition of bakery waste also had a positive effect on the power demand of the pelletizer. It was reduced from 3.08% (at a 10% addition of white wheat–rye bread) to 22.18% (at a 20% addition of pumpkin bread), compared to the process of compacting pure pine sawdust. In addition, all the pellets containing bakery waste had a lower energy yield (EY) determined based on lower heating value and energy inputs. This index was lower by 53 Wh·kg−1 for pine sawdust pellets with a 10% addition of pumpkin bread. The greatest reduction, on the other hand, was by 173 Wh·kg−1 for pellets, with a 20% addition of white wheat–rye bread. In each case, an increase in the share of bakery additives resulted in a decrease in the energy yield from the pellets obtained. The smallest reduction in EY was found when pumpkin bread was used as an additive (from 53 to 133 Wh·kg−1). Considering all the parameters analyzed characterizing the pellets obtained, it was concluded that the addition of bakery residues to pelletized pine sawdust should not exceed 10%. Further increases in the proportion of bakery waste did not yield relative benefits, due to the deterioration of the energy characteristics of the pellets obtained.

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Section: Properties Of Raw Materials and Mixturesmentioning

confidence: 99%

The Effect of Bakery Waste Addition on Pine Sawdust Pelletization and Pellet Quality

Obidziński,

Szyszlak-Bargłowicz,

Zając

et al. 2024

Energies

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“…More stable pellets were found in Stolarski et al's [62] study, where wood pellets were analyzed and the mechanical durability of coniferous pellets was 99.6 and 97.7%. Also, fuel pellets made from sage waste biomass with the addition of rye bran pellets showed a better mechanical durability index, which was from 97.01 to 98.14% [63]. The resulting corncob lower calorific value was 17.35 ± 0.14 MJ kg −1 , and the ash content was 1.78 ± 0.24%.…”

Section: Discussionmentioning

confidence: 99%

Assessment of the Characteristics of Corncobs Used for Energy Needs

Dorofėjūtė,

Paulikienė,

Ūksas

et al. 2024

Agronomy

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Due to environmental pollution and global warming, the use of renewable energy sources such as agricultural residues is gaining attention. Corn is the main source of food in many countries, and after harvesting it, the agricultural and industrial sectors generate significant amounts of residues. This study focused on corncob processing, its preparation, and the evaluation of its characteristics for energy needs. There was no significant difference between drying with active ventilation in the dryer and outdoor drying conditions. The adequate moisture content of corncob pellets is 12.39% at a compression ratio of 3.43 ± 0.011 and a maximum pellet density of 1012.96 ± 3.35 kg m−3. The variation in pellet density at a given adequate moisture content is at least 0.78%. The compression ratio of the pellets compacted on the horizontal matrix granulator is 9.75% higher than that of the pellets produced on the laboratory automatic press. The corncob’s lower calorific value was 17.35 ± 0.14 MJ kg−1, and the ash content was 1.78 ± 0.24%. The produced pellets are strong enough and can be used for combustion. This research may help to better understand the properties of corncobs and their energy potential.

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“…The calorific value and the heat of combustion were determined pursuant to PN-EN ISO 1928:2002 and the methodology described previously in publications [28,29].…”

Section: Determination Of Calorific Value and Heat Of Combustionmentioning

confidence: 99%

Effect of the Addition of Elderberry Waste to Sawdust on the Process of Pelletization and the Quality of Fuel Pellets

Obidziński,

Cwalina,

Kowczyk-Sadowy

et al. 2024

Energies

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This paper presents the results of a study on the process of the pelletization of pine sawdust with the addition of herbaceous waste from elderberry, in the working system of a pellet press with a flat matrix, in the context of producing fuel pellets. Based on the research, the impact of the addition of herbal waste in the form of elderberry waste on the granulation process of pine sawdust and the assessment of the quality of the obtained pellets were determined. The addition of herbaceous waste from elderberry to pine sawdust had a beneficial effect on the kinetic durability of the obtained fuel pellets, with an increase of up to approximately 1.3% (from 98.03 to 99.31%). Based on the obtained results, it can be concluded that the mechanical strength of all the tested pellets is higher than 97.5%, which is consistent with the ISO 17225-1:2021-11 standard. The bulk density of pellets with the addition of herbaceous waste from elderberry increased (from 649.34 to 658.50 kg∙m−3) as did their density (from 1231.38 to 1263.90 kg∙m−3). The addition of herbaceous waste from elderberry in amounts ranging from 10% to 20% did not have a significant effect on the power requirements of the pelletizer, which decreased compared to the pelletization process of pure pine sawdust. The percentage of this decrease compared to the pelleting process with pure pine sawdust was approximately 10%. The addition of herbaceous waste from elderberry to pine sawdust slightly reduces the energy value (i.e., the heat of combustion and the calorific value) of the obtained pellets. The addition of 30% elderberry waste resulted in a decrease in the heat of combustion from 20.27 to 19.96 MJ·kgd.m.−1, while the calorific value of the pellets decreased from 19.98 to 18.69 MJ·kgd.m.−1 compared to pine sawdust pellets. Hence, adding herbaceous waste from elderberry seems to be a good way of managing large amounts of waste of this kind generated in herbal processing plants. This method of waste management opens new perspectives towards more sustainable and economically effective energy production.

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Assessment of the Physical and Energetic Properties of Fuel Pellets Made from Sage Waste Biomass with the Addition of Rye Bran

Cited by 4 publications

References 70 publications

The Effect of Bakery Waste Addition on Pine Sawdust Pelletization and Pellet Quality

The Effect of Bakery Waste Addition on Pine Sawdust Pelletization and Pellet Quality

Assessment of the Characteristics of Corncobs Used for Energy Needs

Effect of the Addition of Elderberry Waste to Sawdust on the Process of Pelletization and the Quality of Fuel Pellets

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