Recovery of agricultural and wood wastes: The effect of biomass blends on the quality of pellets

Brand, Martha Andréia; Rodrigues, Taíse Mariano; Silva, Julio Peretti da; Oliveira, Juliana de

doi:10.1016/j.fuel.2020.118881

Cited by 35 publications

(8 citation statements)

References 18 publications

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“…Kajian mengenai pelet biomassa banyak ditemukan untuk limbah kayu dan pertanian, seperti serbuk gergaji berbagai kayu (Poddar et al, 2014), limbah jagung (Miranda et al, 2018;Wongsiriamnuay & Tippayawong, 2015), sampah dedaunan (Tippayawong et al, 2018), dan jerami dan sekam padi (Brand et al, 2021).…”

Section: Pendahuluanunclassified

Pengaruh Gaya Tekan Dan Waktu Penekanan Terhadap Karakteristik Pelet Tandan Kosong Kelapa Sawit

Haryanto

Waluyo²,

Utami³

et al. 2023

JRPB

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Tandan kosong kelapa sawit (TKKS) merupakan limbah padat terbesar dari pabrik kelapa sawit yang memiliki potensi tinggi untuk dijadikan pelet bahan bakar. Tujuan dari penelitian ini adalah untuk mengevaluasi pengaruh gaya tekan (0,5; 1,0; 2,0; dan 3,0 ton) dan lama penekanan (9, 60, 180 detik) terhadap karakteristik pelet TKKS. Peletisasi dilakukan menggunakan mesin pencetak pelet tipe hidrolik dengan ukuran partikel umpan < 0,6 mm. Evaluasi karakteristik pelet meliputi kadar air, kadar abu, densitas, warna pelet, kekuatan pelet, dan daya serap air. Data dianalisis menggunakan Anova dan uji BNT pada taraf signifikansi a = 5%. Hasil penelitian menunjukkan bahwa gaya tekan berpengaruhi nyata kadar abu dan densitas pelet. Lama penekanan memengaruhi warna pelet. Gaya tekan 1 ton dan waktu penekanan 9 detik (perlakuan P1T1) sudah cukup untuk menghasilkan pelet dengan ketahanan 99%.

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Section: Pendahuluanunclassified

Pengaruh Gaya Tekan Dan Waktu Penekanan Terhadap Karakteristik Pelet Tandan Kosong Kelapa Sawit

Haryanto

Waluyo²,

Utami³

et al. 2023

JRPB

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“…Different residues have already been employed in the production, as reinforcement, sugarcane bagasse (Lahar et al, 2011;Ligowski et al, 2015;Soares et al, 2017); rice husk (Brand et al, 2021;Souza, 2017); coffee husk (Scatolino et al, 2017); corn cob (Protásio et al, 2015); sorghum (Guimarães Júnior et al, 2016); Parica and Embauba (Colli et al, 2010;De Melo and Del Menezzi, 2014;Zeller et al, 2013) and recyclable paper chips (Calegari et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Production and analysis of the physical and mechanical of particleboards panels produced with Acrocomia aculeata endocarp

Menali,

Zidanes,

Dias

et al. 2024

CERNE

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Background:The macauba (Acrocomia aculeata (Jacq.) Lodd. ex Mart.) is a palm tree native to tropical regions and occurs in much of the Brazilian territory. Current studies are focused on the extraction and exploitation of vegetable oil from this fruit. However, there are few studies on the residue, the endocarp, which represents approximately 25% of the total mass of the fruit. Studies that search for solutions for using residue, thus adding value, and generating environmentally friendly products, are of fundamental importance. Thus, this research aimed to evaluate the physical and mechanical properties of reconstituted wood panels produced with different proportions of macauba endocarp particles to replace pine wood particles, in addition to characterize the physical and chemical properties of macauba endocarp. The chemical characterization tests were performed according to applicable standards. The basic density was determined according to the NBR 11941 standard. Thermogravimetric analysis (TGA), X-ray diffractometry (XRD) and Fourier transform infrared spectroscopy (FTIR) were also performed. The particleboards panels were produced with a nominal density of 0.70g/cm³ and dimensions of 25x25x1.5cm. Five different treatments were evaluated with variations in the proportion of macauba endocarp particles in the core of the panel. For particle agglutination, phenol-formaldehyde adhesive was used at a proportion of 9% for the core and 12% for the faces, based on the dry mass of each panel. Scanning electron microscopy (SEM) was used to analyze the panel surfaces.Results:The endocarp of Acrocomia aculeata has low extractive content, high lignin content and high densification, 1.23g/cm³, when compared to Pinus oocarpa wood, 0.43g/cm³. All panels were classified as low density according to CS 236-66 and had an average apparent density between treatments of 0.586g/cm³. A greater dimensional stability and a decrease in the static bending properties of the panels was observed as the proportion of macauba endocarp particles increased. The internal bonding of the panels showed a positive result with the increase in the use of particles of the residue. Conclusion:The panels produced have potential for use for non-structural purposes.

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“…From the global standpoint, the optimization of the supply chain as a whole involves supply (quality and variability of biomass), logistics, pretreatment, storage and burning. Complex logistics relating to the transport of biomass and its economic, energy use and environmental implications may be a barrier to the development of the sector due to the variations in the calorific power and density of biomass as well as its high moisture content [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Tools for Optimization of Biomass-to-Energy Conversion Processes

et al. 2023

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Biomasses are renewable sources used in energy conversion processes to obtain diverse products through different technologies. The production chain, which involves delivery, logistics, pre-treatment, storage and conversion as general components, can be costly and uncertain due to inherent variability. Optimization methods are widely applied for modeling the biomass supply chain (BSC) for energy processes. In this qualitative review, the main aspects and global trends of using geographic information systems (GISs), linear programming (LP) and neural networks to optimize the BSC are presented. Modeling objectives and factors considered in studies published in the last 25 years are reviewed, enabling a broad overview of the BSC to support decisions at strategic, tactical and operational levels. Combined techniques have been used for different purposes: GISs for spatial analyses of biomass; neural networks for higher heating value (HHV) correlations; and linear programming and its variations for achieving objectives in general, such as costs and emissions reduction. This study reinforces the progress evidenced in the literature and envisions the increasing inclusion of socio-environmental criteria as a challenge in future modeling efforts.

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Recovery of agricultural and wood wastes: The effect of biomass blends on the quality of pellets

Cited by 35 publications

References 18 publications

Pengaruh Gaya Tekan Dan Waktu Penekanan Terhadap Karakteristik Pelet Tandan Kosong Kelapa Sawit

Pengaruh Gaya Tekan Dan Waktu Penekanan Terhadap Karakteristik Pelet Tandan Kosong Kelapa Sawit

Production and analysis of the physical and mechanical of particleboards panels produced with Acrocomia aculeata endocarp

Tools for Optimization of Biomass-to-Energy Conversion Processes

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