Pellet production from agricultural raw materials – A systems study

Nilsson, Daniel; Bernesson, Sven; Hansson, Per‐Anders

doi:10.1016/j.biombioe.2010.10.016

Cited by 104 publications

(64 citation statements)

References 10 publications

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“…In spite of that some kinds of residues have been employed for thermal energy or electricity generation -such as rice husk studied by Behainne and Martinez (2014) or sugarcane bagasse reported by Hofsetz and Silva (2012) -fuel pellets have some advantages in comparison with unprocessed biomass. Among the advantages is the higher energy density, implying lower storage and transportation costs (Nilsson, Bernesson, & Hansson, 2011).…”

Section: Introductionmentioning

confidence: 99%

<b>Sugarcane bagasse pellets: characterization and comparative analysis

2017

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ABSTRACT. This paper presents a study carried out in a Brazilian pellet industry in order to determine the main properties of sugarcane bagasse pellets. Materials ), ash content (8.70%), fixed carbon (14.03%), volatile matter (77.27%), nitrogen (0.28%), sulphur (0.02%) and chlorine (< 0.02 %). The results are compared with those obtained from the literature and discussed according to international standards for biomass pellets, wood pellets and solid biofuel. The comparative analysis showed that there are differences between the results found in our study in comparison with other studies and international standards. The paper also presents the production process energy consumption and cost analysis. ), o teor de cinzas (8,70%), o carbono fixo (14,03%), as matérias voláteis (77,27%), o nitrogênio (0,28%), o enxofre (0,02%) e o cloro (< 0,02 %). Os resultados são comparados com outros obtidos a partir da literatura e discutidos de acordo com normas internacionais para pellets da biomassa, pellets de madeira e biocombustível sólido. A análise comparativa mostrou que existem diferenças entre os resultados encontrados em nosso estudo em comparação com outros estudos e normas internacionais. O artigo também apresenta uma análise de consumo e custos com energia no processo produtivo.Palavras-chave: pellets, bagaço de cana-de-açúcar, biomassa, bioenergia.

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Section: Introductionmentioning

confidence: 99%

<b>Sugarcane bagasse pellets: characterization and comparative analysis

2017

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“…In the normal-temperature wet briquetting of straws, important parameters having influence on specific energy consumption included compressing rate, material moisture ratio, die length-diameter ratio, and die opening taper (Nilsson et al 2011). Their relationship with the specific energy consumption was not simply linear but showed interaction among them to different extent (Andrejko and Grochowicz 2007;Adapa et al 2009).…”

Section: Experimental Methodsmentioning

confidence: 99%

Specific Energy Consumption Regression and Process Parameters Optimization in Wet-Briquetting of Rice Straw at Normal Temperature

Hu¹,

Lei²,

Shen³

et al. 2012

BioResources

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In the normal-temperature (20 to 25 o C) wet briquetting of straw, the lignin becomes softened and briquetted by means of friction heat from the briquetting at some compressing force and moisture ratio. With an electronic universal testing machine and a self-developed normaltemperature wet briquetting device, tests were carried out for normal-temperature wet briquetting of rice straws with different compressing rate, material moisture, die length-diameter ratio, and die opening taper, using a quadratic regression-orthogonal design. Based on the characteristic curves of normal-temperature wet briquetting, the specific energy consumption was calculated by stepped regression and then integration for summation. Thereby, a specific energy consumption model was established. Next, an interactive analysis was made between single-factor and two-factor designs. Optimal combination of factors, i.e. 17.3% moisture, 44.5 mm/min compressing rate, 45 o die opening taper, and 5.3 die length-diameter ratio, were obtained while the specific energy consumption was minimized. Further, the work provided references for process parameters design of the normal-temperature wet briquetting device for straw.

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“…For ecological reasons it is also important that environmental pollution during biomass combustion be as low as possible (Kowalczyk-Juoeko et al, 2009;Maj and Piekarski, 2013;Majtkowska and Majtkowski, 2005;Nilsson et al, 2006Nilsson et al, , 2011Wawrzosek and Piekarski, 2006). It is for that reason that the research, inter alia on the percentage of ash as a result of biomass combustion, is carried out.…”

Section: Introductionmentioning

confidence: 99%