A comparative study of quality properties of pelletized agricultural and forestry lopping residues

Zamorano, M.; Popov, Viktor; Rodríguez, Ma Paloma González; García-Maraver, Ángela

doi:10.1016/j.renene.2011.03.020

Cited by 90 publications

(62 citation statements)

References 15 publications

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“…Over the recent years, demand of pellet fuel is increasing due to its high efficiency and environmentally friendly characteristics. Despite the fact that biomass from the agricultural sector has the potential to increase the overall biomass amount, the quality of agricultural biomass-derived pellets is low in terms of physical and chemical properties [6,7]. In general, the collection and preprocessing of biomass have been regarded key factors for efficient, profitable, and sustainable bioenergy production [3,6,8].…”

Section: Introductionmentioning

confidence: 99%

Process and Energy Analysis of Pelleting Agricultural and Woody Biomass Blends

2018

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Unprocessed biomass has low energy density and high transportation cost. The energy generated through biomass can be enhanced by the pelletizing technique. In order to evaluate the energy requirement for the pelletizing of agricultural biomass, three different particle sizes (150-300, 300-425, and 425-600 µm) of reed canary grass (RCG), timothy hay (TH), and switchgrass (SW) were selected in the present work. Furthermore, two woody biomasses (spruce and pine) were also considered under similar experimental conditions for comparison purposes. An Instron machine attached to an in-house built pelletizer unit was employed to produce a single pellet. The energy demand for compacting ground biomass (spruce) with a particle size of 150 µm was lower (2.07 kJ) than those required for particle sizes of 300 µm (2.24 kJ) and 425 µm (2.43 kJ). The energy required for compacting ground reed canary grass, timothy hay, and switchgrass was lower (1.61, 1.97, and 1.68 kJ, respectively) than that required for spruce (2.36 kJ) and pine (2.35 kJ), evaluated at a 159-MPa load and at temperature of about 80 • C. The energy demand for blended biomass was around 2 kJ with the pellet quality approaching that of the pellets made from woody biomass. Overall, blending helped to improve the quality of pellets and lower the compaction energy requirements.

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Section: Introductionmentioning

confidence: 99%

Process and Energy Analysis of Pelleting Agricultural and Woody Biomass Blends

2018

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“…The energy potential of dry waste biomass was computed using relationships (6), (7), and (8). Relationships (9), (10), (11), and (12) were used to compute the energy potential of wet waste biomass. The share of energy contained in individual waste biomass types in relation to the energy potential of waste biomass generated on the surveyed farms was determined from the above relationships.…”

Section: Determining the Value Of The Energy Potential Of Waste Biomamentioning

confidence: 99%

“…3 million tons in 1751 to around 9.7 billion tons in 2012 [3]. Many researchers [4][5][6][7][8][9][10][11] are of the opinion that the high level of carbon dioxide emissions contributes to climate change, especially to global climate warming.…”

Section: Introductionmentioning

confidence: 99%

“…Agriculture generates large quantities of waste biomass [11,12], from which second-generation biofuels can be produced. This will increase the total quantity of biofuels produced sustainably and benefi cially to the environment [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…This constitutes a real threat to the environment because of the foul smell, pathogenic compounds, and greenhouse gases [23][24][25]. Therefore, the use of surplus waste biomass for energy purposes can bring signifi cant benefi ts such as [11,12]: -Reducing primary CO 2 emissions into the atmosphere by decreasing fossil fuel consumption.…”

Section: Introductionmentioning

confidence: 99%

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The Concept of an Energy Self-Sufficient Farm System Compatible with Sustainable Development in a Selected Region in Poland

Bieranowski¹,

Olkowski²

2016

Pol. J. Environ. Stud.

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This paper analyses the real quantity of organic waste in the Polish province of Warmia and Mazury to determine the degree of farm energy self-suffi ciency. Systems engineering methods were used in the performance of the study. A relational and mathematical model was constructed to estimate the energy potential of waste biomass in the selected area. This model is the basis for conducting detailed studies, whose results are presented in the content of the paper.The constructed model allows the determination of such parameters as: • The value of the energy potential of organic waste generated by farms in the selected area. •The value of the technical (real) energy potential of organic waste from farms using specifi c technologies. •The type of waste with the highest energy potential. Our paper defi nes the concept of the degree of primary energy substitution with renewable energy from agricultural organic waste and presents a methodology for determining the degree of covering the real demand of farms for electrical energy and heat.A statistical model for estimating the unit energy potential of organic waste from a given farm per 1 ha of area was also developed. This model allowed the total energy potential of organic waste from agriculture to be determined for the studied area. In the studied province, the total energy potential of organic waste from agriculture amounts to 16.74 PJ·yr -1 . Although this study shows that the energy potential contained in organic waste from agriculture is signifi cantly large, it is disregarded by farmers and decision-makers. Focusing on the production of energy crops in order to satisfy the demand for energy biomass distorts the image that emerges from our studies: the level of renewable energy generated only from organic waste makes the idea of energy self-suffi ciency of farms appear plausible. We considered only those groups of waste that cannot be used in agriculture.

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Energy conversion from wastewater sewage sludge

Billah

Techato

Taweepreda

2020

Asia-Pacific J Chem Eng

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Natural rubber-based industries in Southern Thailand are generating concentrated latex sewage sludge (CLS), which is commonly managed by landfilling practice that is causing serious environmental hazards. The purpose of this study was to develop a method to produce pellets using CLS and para-wood sawdust as a potential biomass source for energy generation. The process started with dewatering the CLS through a decanter centrifuge. Then a flat die pellet mill was applied for copelletization. Finally, the pellets were investigated to evaluate the higher heating value and toxic heavy metals (Cu, Zn, Cr, As, Cd, and Pb) using proximate-ultimate analysis, fourier transform infrared analysis, scanning electron microscopy, calorific value, thermogravimetric analysis, atomic absorption spectrometer, and inductively coupled plasma optical emission spectroscopy. The results showed that the addition of the parawood sawdust resulted in higher heating value and lower ash content of 3,620 ± 12 kcal/kg and 4.93 ± 0.98%, respectively. Besides, it has increased the carbon content of the pellet from 28.23 to 46.26% highest among all the samples. Furthermore, the method developed in this study is not only environmentally friendly but also economically sound than the earlier management of CLS.

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A comparative study of quality properties of pelletized agricultural and forestry lopping residues

Cited by 90 publications

References 15 publications

Process and Energy Analysis of Pelleting Agricultural and Woody Biomass Blends

Process and Energy Analysis of Pelleting Agricultural and Woody Biomass Blends

The Concept of an Energy Self-Sufficient Farm System Compatible with Sustainable Development in a Selected Region in Poland

Energy conversion from wastewater sewage sludge

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