Analysis of Factors Affecting Miscanthus Pellet Production and Pellet Quality using Response Surface Methodology

Moon, Youn-Ho; Yang, Jungwoo; Koo, Bon‐Sung; An, Jong-Woong; Cha, Young-Lok; Youn, Young-Mi; Yu, Gyeong-Dan; An, Gi-Hong; Park, Kwang-Geun; Choi, In-Hu

doi:10.15376/biores.9.2.3334-3346

Cited by 17 publications

(9 citation statements)

References 27 publications

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“…Research on miscanthus biomass pelleting is widely reported in the literature; however, these studies are not comprehensive and do not cover the issues of energy consumption in the compaction process. Moon et al [14] did not obtain pellets of satisfactory quality in the first stage of their research in pilot studies. Mani et al [15] indicated that a lower lignin content and poor bonding between particles during the formation of lignocellulosic granules are the reasons for the lower durability of the obtained pellets.…”

Section: Introductionmentioning

confidence: 95%

Energy Parameters of Miscanthus Biomass Pellets Supplemented with Copra Meal in Terms of Energy Consumption during the Pressure Agglomeration Process

et al. 2021

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The process of pelleting miscanthus biomass often encounters issues related to the low durability of the obtained pellets and high energy inputs. To solve these issues, the use of copra meal as a supplement is proposed. This paper presents the results of research on energy parameters of miscanthus biomass pellets supplemented with copra meal in terms of energy consumption in the pressure agglomeration process. As part of this research, the energy parameters of miscanthus biomass, copra meal biomass, and their blends were characterized. Next, the raw materials were used for the production of pellets in the pressure agglomeration process. The investigations included proximate and ultimate analysis and estimation of heating values. Moreover, the total fat content, mechanical durability, kinetic strength, and bulk density were determined, and the energy consumption in the pelleting process was assessed. The results indicate that the energy consumption in the miscanthus biomass pelleting process can be substantially reduced by adding copra meal as a biocomponent. When the copra meal addition did not exceed 30%, the pellets exhibited over 95% durability, over 1200 kg∙m−3 density, and over 417 kg∙m−3 bulk density. Given the 44% reduction in energy consumption in the pellet production process and the energy efficiency of 4815 Wh·kg−1 determined in this study, copra meal may be an interesting material for use as an additive in the production of miscanthus biomass pellets.

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Section: Introductionmentioning

confidence: 95%

Energy Parameters of Miscanthus Biomass Pellets Supplemented with Copra Meal in Terms of Energy Consumption during the Pressure Agglomeration Process

et al. 2021

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“…It is the largest quantity of biomass residue in the United States as well as in China with over 270 million tons produced annually between the two nations (Kadam andMcMillan 2003, Zhoa andXia 2010). Miscanthus Pellets, derived from Miscanthus sacchariflorus strain GoedaeUksae 1, has recently been developed as an energy crop due to its large size, ease of cultivation and ability to grow rapidly (Moon et al 2014). Wood pellets are sourced from residue associated with harvesting and management of commercial timberlands or non-merchantable biomass from forest inventory, and they are considered as the most common form of pellets used globally for biomass energy production (Perlack et al 2005, Pirraglia et al 2010.…”

Section: Mixture Designsmentioning

confidence: 99%

Evaluation of low temperature viscoelastic properties and fracture behavior of bio-asphalt mixtures

Hill

Oldham

Behnia

et al. 2016

International Journal of Pavement Engineering

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The overall national emphasis on sustainability in pavement construction has led to the promotion of recycled materials such as reclaimed asphalt pavement (RAP) and reclaimed asphalt shingles. In general, the inclusion of these materials has led to reduced performance at low temperatures leading to thermal cracking. Previous research by the authors showed that the application of bio-binder from swine manure could alleviate the effect of RAP while improving the overall low temperature bulk viscoelastic and fracture properties of the asphalt mixture. The current paper expands on the previous research on bio-modified asphalt mixtures by investigating three additional bio-asphalts produced by introducing wood, miscanthus and corn stover based bio-oils to a neat asphalt. These bio-asphalt mixtures were introduced in both virgin and reclaimed asphalt pavement mixtures to evaluate interaction between the bio-oils and reclaimed asphalt pavement, with a focus on properties related to low temperature pavement performance. Low temperature characterization was conducted using disk-shaped compact tension fracture (DC(T)) and indirect tension (IDT) bulk viscoelastic characterization tests. The IDT test, completed in accordance with AASHTO T-322, evaluated the creep compliance of mixtures at 0, −12 and −24 °C to examine the ability of the mixture to relax thermal stress development. The DC(T) test was completed according to ASTM D-7313 to determine the fracture energy of the mixtures at −12 °C. Test results demonstrate that the bioasphalt mixtures had superior physical properties in terms of fracture resistance and creep compliance. Furthermore, the effect of increased RAP contents was less detrimental to low temperature properties in the bio-asphalt mixtures as compared to the reference hot-mix asphalt mixture.

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“…(Nielsen et al, 2020). In the pelleting process of biomass, raw material density, moisture content and die L/D ratio are critical for pellet formation (Moon et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Effect of Die Geometry and Moisture Content on Pelletizing of Palm Pruning Residues

Yılmaz

Topakçı

Çanakcı

et al. 2022

Tekirdağ Ziraat Fakültesi Dergisi

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Palm pruning residues are potential pellet raw material, which are quite abundant in regions with hot climates. In pelletizing process, raw material properties and pellet machine features are the main factors affecting the final pellet quality. In this study, 5 mm sieve hole diameter milled palm pruning residues was pelleted using two different pellet dies and two different pelletizing moisture. First die (D1) has 25 mm total length, 17° inlet angle and 10 mm inlet depth. The second die (D2) has 35 mm total length, 33° inlet angle and 5 mm inlet depth. The inlet and outlet hole diameter of both die are 11 mm and 8 mm, respectively. Pelleting moisture is fixed at two different levels as 10% (M10) and 14% (M14). The change of production parameters and pellet physical properties were investigated according to the die type and moisture content parameters. Increasing pelletizing moisture had a positive effect on the production capacity and it was obtained as 82.44, 103.1, 134.05, 145.49 kg h -1 for D1-M10, D1-M14, D2-M10 and D2-M14 pellets, respectively. The increase in pelletizing moisture caused degradation of the pellet forms, which is more evident in the pellets produced in the D1 die. Pellets produced in the D2 die are more compressed and denser and lower moisture content. The increase in total die length resulted in heavier and denser pellet production, resulting in higher production capacity and low specific energy consumption. Pellet durability index (%, ar) of D1-M10, D1-M14, D2-M10 and D2-M14 were measured as 95.53; 92.29 and 97.74; 98.32, respectively. It was concluded that the longer active die length can tolerate high moisture content pelletizing, and durable pellets can be produced in a wide moisture content range. In addition, die conical dimensions and die length are the factors that needs to be optimized according to different raw materials.

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Analysis of Factors Affecting Miscanthus Pellet Production and Pellet Quality using Response Surface Methodology

Cited by 17 publications

References 27 publications

Energy Parameters of Miscanthus Biomass Pellets Supplemented with Copra Meal in Terms of Energy Consumption during the Pressure Agglomeration Process

Energy Parameters of Miscanthus Biomass Pellets Supplemented with Copra Meal in Terms of Energy Consumption during the Pressure Agglomeration Process

Evaluation of low temperature viscoelastic properties and fracture behavior of bio-asphalt mixtures

Effect of Die Geometry and Moisture Content on Pelletizing of Palm Pruning Residues

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