Characterization of pellets produced from extracted sawdust: Effect of cooling conditions and binder addition on composition, mechanical and thermochemical properties

Sermyagina, Ekaterina; Martinez, Clara Mendoza; Lahti, Jari; Nikku, Markku; Mänttäri, Mika; Kallioinen‐Mänttäri, Mari; Vakkilainen, Esa

doi:10.1016/j.biombioe.2022.106562

Cited by 11 publications

(13 citation statements)

References 51 publications

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“…However, eucalyptus pellets containing 2% and 5% kraft lignin had lower ash than the control [53], while eucalyptus pellets containing 1% and 2% lignosulfonate in a different study [54] reported an inconsistent effect on pellet ash. Regarding moisture absorption, adding lignin to spruce resulted in an increase in moisture absorption at equilibrium compared to when lignin was not added [55]. This is contrary to the expectation that lignin would reduce moisture absorption because of its more hydrophobic nature, as previously noted.…”

Section: Introductioncontrasting

confidence: 87%

“…For pellets produced with lignin, lignin was added to ground willow at 5% of the mass of the willow and thoroughly mixed prior to loading into the pelletizer. This 5% addition ratio of lignin was selected based upon prior studies involving lignin as a binder in pelletizing [55,[58][59][60]. Lignin was added as-received (moisture content: RecL, 1.8%; ComL, 22.3%) to the willow.…”

Section: Pelletizing Of Lignocellulosic Biomass and Lignin-added Pelletsmentioning

confidence: 99%

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Lignin Use in Enhancing the Properties of Willow Pellets

Elniski,

Dongre,

Bujanovic

2023

Forests

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Shrub willow (Salix spp.) is an emerging lignocellulosic biomass utilized in fuel pellets as an energy source. However, improvements are needed to increase the efficacy of pellets in areas such as the energy content, durability, and hazardous carbon monoxide emissions. This study examined the effect of utilizing lignin as an additive on willow pellet properties. Two types of lignin were used in individual treatments: lignin recovered from the hot water extraction of willow (RecL) and commercial softwood kraft lignin (ComL). A statistical analysis of the ash content, energy content, bulk density, durability, pellet length, moisture absorption, and carbon monoxide emissions for the pellets with and without the addition of RecL or ComL lignin was conducted. The observed significant reduction in carbon monoxide emissions from RecL pellets was an important effect of the lignin addition. There were also significant increases in the energy content, bulk density, and durability of lignin-added pellets. While the production of carbon monoxide via pellets continues to be explored, lignin can be utilized as an additive to reduce carbon monoxide emissions and simultaneously improve other pellet properties.

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Section: Introductioncontrasting

confidence: 87%

Section: Pelletizing Of Lignocellulosic Biomass and Lignin-added Pelletsmentioning

confidence: 99%

Lignin Use in Enhancing the Properties of Willow Pellets

Elniski,

Dongre,

Bujanovic

2023

Forests

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“…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]. This makes it possible for bakery waste to be used as additives in pellet production.…”

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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“…A 100-gm sample of the 4.76-mm pellets was screened, after which it was put in the test chamber with perforation and shaken for 60 sec using compressed air [ 10 ]. The physical test of pellet feed refers to the method described by Sermyagina et al [ 1 ]. Before the diet was prepared, all components were tested according to the Association of official agricultural chemists (AOACs) [ 11 ].…”

Section: Methodsmentioning

confidence: 99%

“…Commonly, pellet feed has an influential positive effect on duck performance. The advantages of pellets include feed intake, feed efficiency, improved digestibility, reduced material separation, and increased palatability [ 1 ].…”

Section: Introductionmentioning

confidence: 99%

Maintaining the physical quality and digestibility of pellet feed through the use of plant-based pellet binder

Jaelani,

Rostini,

Zakir

et al. 2024

J Adv Vet Anim Res

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Objectives: This study aimed to analyze the effects of the use of binders on the physical quality and digestibility of Alabio ducks (Anas platyrinchos Borneo). Materials and Methods: Pellet binders used tapioca meal (TM) (Manihot utilissima), sago meal (SM) (Metroxylon sagu Rottb.), and sweet potato meal (SPM) (Ipomoea batatas) pelleted feed. Laying Alabio ducks, around 120 birds, aged 20 weeks with an average body weight of 1,426 ± 113.5 gm, were used. A fully randomized design with 4 treatments and 15 repeats was used in this study. The variables measured include the physical quality and digestibility of pellet feed. Data analysis used a Fisher test. For the distinction between treatments, the Duncan multiple-range test was conducted. Results: The finding showed that the plant-based pellet binder had a natural effect on physical properties, including pellet durability index, moisture content, threshold power, stack density, and stack compacted density. The strength of the pellet binder is seen in the durability index of TM 98.12%, SM 97.64%, and SPM 97.35%, respectively. However, these variables did not differ significantly in terms of specific gravity and stack angle. Pellet binders considerably affect the consumption of feed and vary markedly in dry matter, organic matter, and metabolizable energy digestibility. Conclusion: Plant-based pellet binders influence the physical quality and digestibility of pelleted feed in Alabio ducks. TM can maintain physical quality and digestibility compared to SM and SPM as plant-based pellet binders.

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Characterization of pellets produced from extracted sawdust: Effect of cooling conditions and binder addition on composition, mechanical and thermochemical properties

Cited by 11 publications

References 51 publications

Lignin Use in Enhancing the Properties of Willow Pellets

Lignin Use in Enhancing the Properties of Willow Pellets

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

Maintaining the physical quality and digestibility of pellet feed through the use of plant-based pellet binder

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