Experimental Study on the Mechanical Properties of Biomass Briquettes from a Mixture of Rice Husk and Pine Sawdust

Niño, Andrés; Arzola, Nelson; Ríos, Oscar Javier Araque de los

doi:10.3390/en13051060

Cited by 18 publications

(9 citation statements)

References 18 publications

(33 reference statements)

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“…The compaction time when associated with other variables, such as the presence of binder and the conditions of compaction, pressure and temperature, determine the density and compressive strength of the briquettes [15]. Similarly, other authors have reached statistical conclusions (p-value < 0.05) that the pressing time is a significant process variable to achieve appropriate results of density and modulus of elasticity for the briquettes [65].…”

Section: Effect Of Pressing Time On the Production Of Briquettesmentioning

confidence: 90%

“…The standardization standards for solid biofuels used were ENplus, EN 14961-2 and DIN 51731. Despite referring to the characteristics of densified biomass in the form of pellets, several studies use them as a reference standard for briquettes, as was done by Chungcharoen and Srisang [43]; Khlifi et al [8]; Kpalo et al [29] and Niño et al [65]. 3030.00 1200.00 Hydraulic [37] 1250.00 NS [38] 1060.00 0.99 Hydraulic [27] 1240.00 Manual mechanic [28] 590.00 1.23 99.30 Hydraulic [44] 1300.00 0.86 99.00 3.00 Manual mechanic [13] 1163.00 Hydraulic [42] 990.00 19.80 Hydraulic [34] 920.00 0.37 4.00 15.00 Hydraulic [45] 95.00 50.00 830.00 NS [36] 1170.00 2070.00 99.89 NS [30] 1190.00 100.00 Hydraulic [39] 913.00 41.19 Screw extruder [31] 1524.00 Hydraulic [46] 0.37 6.62 13.47 Hydraulic [26] 1140.00 16.00 3.00 1.00 Hydraulic [47] 1000.00 5.30 Hydraulic [48] 500.00 190.00 NS [25] 861.00 95.…”

Section: Main Response Parameters Of Briquette Productionmentioning

confidence: 99%

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Empirical Studies on Biomass Briquette Production: A Literature Review

et al. 2021

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The densification of raw material into fuel briquettes is one of the routes to convert biomass into energy. This method provides uniformity to the solid fuel, better physical and energy properties, facilitating its storage and transport, in addition to more homogeneous combustion. Given the importance of these characteristics, this work presents a literature review, emphasizing the experimental levels of the variables of the briquetting process, as well as on the most relevant quality parameters for obtaining briquettes. We also carry out a survey of the main technologies used in the production of briquettes, as well as the experimental methodologies and statistical analysis used in the planning and validation of processes. It was observed among the studies that the raw material granulometry, followed by pressure, initial moisture, compaction time and binder are the most used process variables for the production of briquettes. Other factors, such as the proportion of biomass, process temperature and thermal pre-treatments are used to obtain greater energetic and physical responses. Among the works, divergences were observed regarding the relevance and interaction of some process variables on the quality variables of the briquettes, indicating the need for the experiments to be mathematically modeled.

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Section: Effect Of Pressing Time On the Production Of Briquettesmentioning

confidence: 90%

Section: Main Response Parameters Of Briquette Productionmentioning

confidence: 99%

Empirical Studies on Biomass Briquette Production: A Literature Review

et al. 2021

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“…Although a significant decrease of the mechanical durability index for a larger fraction was observed, the Du values can be considered satisfactory. The research of other authors showed that briquettes made of plant materials should be characterized by the higher mechanical durability index Du, exceeding 80% [42][43][44]. However, these values are not always achieved.…”

Section: The Mechanical Durability Index-pn-en Iso 17831-2: 2016-02 Standardmentioning

confidence: 97%

The Impact of Particles Comminution on Mechanical Durability of Wheat Straw Briquettes

et al. 2020

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Briquetting is one of the recommended biomass agglomeration processes. The material subjected to briquetting gains valuable functional features related to higher energy density, appropriate moisture content, and increased bulk density. However, the briquettes need high mechanical durability to maintain high quality during transportation, loading, and other logistic steps before they will be delivered to the final consumer and utilized for energy purposes. The mechanical durability depends on many factors, including the particles comminution of the compacted biomass. Therefore, the aim of this study was to analyze the impact of particle comminution on the mechanical durability of wheat straw briquettes. The research was carried out in accordance with the international standard for solid biofuels PN-EN ISO 17831-1:2016-02. The briquettes were produced from three different fractions: 0–2 mm, 2–15 mm, and 15–45 mm. To obtain more data related to the mechanical durability of briquettes, the tests were also carried out outside the ISO standard conditions. During the investigations, the working chamber operation time was extended from 5 to 60 min, and the rotational speed of the working chamber was increased to 25 and 30 rpm, respectively. The results indicated that the mechanical durability index (Du) of briquettes decreases along with the increase in the particle size. According to the PN-EN ISO 17831-1:2016-02 standard, the highest mechanical durability was achieved for the 0–2 mm fraction (Du = 91.17%) followed by the 2–15 mm fraction (Du = 88.12%), and the lowest was achieved for the 15–45 mm fraction (Du = 84.48%). It was noticed that the increase in the working chamber operation time resulted in a decrease of the Du value. Moreover, the difference in mechanical durability (between t5 = 5 min and t60 = 60 min) was greater for a larger fraction (∆Du = 16.26% for 0–2 mm fraction, ∆Du = 21.04% for 2–15 mm fraction, and ∆Du = 23.43% for 15–45 mm fraction). It was also observed that the increase of the rotational speed of the working chamber caused a slight decrease in the value of the mechanical durability of briquettes for all investigated fractions.

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“…To make the molding block, first, the CR must be ground to specific particle size. At the same time, humidity control and adding adhesives should also be emphasized [66,67].…”

Section: The Cr Briquette Fuel Projectmentioning

confidence: 99%

Techno-Economic Assessment of Three Modes of Large-Scale Crop Residue Utilization Projects in China

Meng

Alengebawy

et al. 2020

Energies

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In China, the non-exploitation of bioenergy poses major problems and challenges. To solve bioenergy problems, considerable efforts have been made to expedite the construction of large-scale crop residue utilization projects. In this study, three principal supported modes of large-scale crop residue utilization projects were taken as empirical cases in Hubei province bioenergy planning. In terms of the overall benefit and sustainable development, a third-grade evaluation index system was established. The analysis was carried out using the analytical hierarchy process, principal component projection, and grey relational analysis. The conclusion indicates that according to the evaluation values, the sequence from best to worst was crop residue biogas project, crop residue briquette fuel project, and crop residue gasification project. Nevertheless, there was no remarkable difference in the overall evaluation values. The biogas project had certain advantages in terms of the production cost, soil improvement, and expenditure saving, whereas the gasification project was comparatively insufficient in environmental efficiency, product benefit, by-product disposal, and technical rationality. According to actual evaluation results, the unilateral determination approach of the single weight index can be seen as being overcome through the unified adaptation of the evaluation methods. The research results can serve as a reference for making investment decisions to build large-scale crop residue utilization projects.

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Experimental Study on the Mechanical Properties of Biomass Briquettes from a Mixture of Rice Husk and Pine Sawdust

Cited by 18 publications

References 18 publications

Empirical Studies on Biomass Briquette Production: A Literature Review

Empirical Studies on Biomass Briquette Production: A Literature Review

The Impact of Particles Comminution on Mechanical Durability of Wheat Straw Briquettes

Techno-Economic Assessment of Three Modes of Large-Scale Crop Residue Utilization Projects in China

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