Combustion Behavior of Spanish Lignocellulosic Briquettes

Tabarés, José Luis Míguez; Granada, Enrique; Moran, J.; Porteiro, Jacobo; Murillo, S.; González, Luis Español

doi:10.1080/009083190913647

Cited by 9 publications

(5 citation statements)

References 41 publications

(45 reference statements)

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“…Briquetting is a densification process in which pressure is applied to loose precursor materials with or without a binder to obtain a compact, durable and high-quality solid fuel [4]. Briquetting reduces the costs of handling, transportation and storage and increases the volumetric calorific values by increasing the bulk density and reducing moisture content [26,44]. The strength and energy properties of the briquettes depend on various factors, including (1) solid/binder ratio, (2) pressing pressure and time and (3) properties of the precursor materials [4,6,51].…”

Section: Introductionmentioning

confidence: 99%

Development, properties and potential applications of high-energy fuel briquettes incorporating coal dust, biowastes and post-consumer plastics

2020

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The conversion of waste to energy through briquetting has the potential for providing energy, while simultaneously reducing wastes and their environmental health risks. The current study developed and evaluated high-energy fuel briquettes from mixtures of coal dust, biowastes and postconsumer plastics. Five waste mix ratios (wt%) of coal dust (C), postconsumer plastics (P) and sawdust (S) were tested: (1) C50-40-S10, (2) C-60-P30-S10, (3) C70-P20-S10, (4) C-80-P20-S0 and (5) C-80A-P0-S20. Waste mix ratio had a significant effect (p < 0.05) on water absorption, shatter index, compressive strength and energy values, but had no effect on density. The densities (1.1-1.3 g/cm 3 ) and shatter indices (94-98%) of all briquettes conformed to international standard specifications for fuel briquettes, indicating that the briquettes had acceptable handling properties. A waste mixture ratio of 50% coal dust, 40% plastics and 10% sawdust (C50-P40-S10) produced a briquette with the best overall combination of handling and energy properties. The high-energy briquettes had calorific values of 26.5-33.8 MJ/kg, which were significantly higher than or comparable to the maximum values reported for high-energy coal (27 MJ/kg), while the compressive strength was 0.7 MPa. Potential applications of the briquettes include (1) household and institutional heating and cooking and (2) industrial heating in kilns, furnaces, smelters, curing and drying of crops (e.g., tobacco barns. Further work is required to address the following:(1) evaluation of the detailed physicochemical, combustion and emission properties, (2) optimization of the briquetting process, (3) cost estimation of the briquettes relative to existing competing solid fuels and (4) comparative performance evaluation of the briquettes versus conventional solid fuels in the various applications.

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Section: Introductionmentioning

confidence: 99%

Development, properties and potential applications of high-energy fuel briquettes incorporating coal dust, biowastes and post-consumer plastics

2020

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“…Generally speaking, the combustion of coal and that of biomass are fairly similar. However, systems for the direct burning of biomass pose a series of problems: [30][31][32][33][34][68][69][70][71][72][73][74][75][76][77] • Fouling and corrosion in the combustion chamber caused by the alkaline nature of the biomass ash produced by the melting of combustion products at high temperatures. Slagging and fouling reduce the combustor's heat-transfer surfaces and cause problems of erosion and corrosion, thereby reducing the equipment's useful life.…”

Section: Main Technical Issues For a Combustion Plantmentioning

confidence: 99%

Biomass gasification or combustion for generating electricity in Spain: Review of its current situation according to the opinion of specialists in the field

Ruiz

Juárez

Morales

et al. 2013

Journal of Renewable and Sustainable Energy

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This paper seeks to set out the problems of biomass-based electricity generation according to the opinions of specialists in the sector with considerable experience both in the undertaking of projects involving the management and operation of facilities, and in research projects involving combustion and gasification technologies. The aim is to analyse both technologies and decide which is the more suitable and in what circumstances, and to describe the technological and circumstantial problems each one currently faces. In general, it is stressed that these two technologies are still in their infancy, and they require major efforts in research, although the first fruits are already being gathered for each one at an appropriate scale. Some experts recommend using the gasification technique in plants with an installed electric power of between 0.5 and 2 MWe, while in plants between 2 and 10 MWe combustion is considered to be more reliable. A key factor in the viability of both types of facilities is the need to increase operating times. The estimated requirement is 7000 to 8000 operating hours, which is well above the current figure. A common problem with both technologies is biomass logistics. This is a factor that needs to be taken very much into account when conducting a feasibility study on a facility.

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“…This is because the low amylose content gives the rice maximum stickiness (F. P. Pangerang, 2018), as shown in the use of 30-50% adhesive. The possibility of the emergence of fluctuating data can be triggered by the breakdown of the briquette due to the lack of density on the briquette, or the formation of an ash layer on its surface (J. M. Tabarés, 2006).…”

Section: The Puncture Testmentioning

confidence: 99%

“…High density values are obtained for 40% adhesive. The possibility of the emergence of fluctuating data can be triggered by the breakdown of the briquette due to the lack of density on the briquette, or the formation of an ash layer on its surface (Tabarés, et al, 2006). In addition, the value of mechanical strength is strongly influenced by the type of material, particle size, type of adhesive, pressure, and briquette density.…”

Section: The Hardness Testmentioning

confidence: 99%

Mechanical Properties of briquette by mixing rice and micrometer-sized carbon particles from potato and yam skins

Anggraeni

Nandiyanto

Putri

et al. 2021

JER is an international, peer-reviewed journal that publishes f

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The purpose of this study was to utilize waste potato skins (PS) and yam skins (YS) in the production of briquettes with rice waste as a binder. The basic materials used to utilize waste, especially potato skins (PS), yam skins (YS), and rice waste. Experiments were carried out by mixing and molding carbon particles made from an equal mass ratio of PS and YS with rice as binders (i.e., 10, 20, 30, 40, and 50%). PS and YS were dried, carbonized at 250°C for 3 hours, and sieved to get sizes of 250 μm. To make compact briquettes, the molded materials were pressed with 5.66 Pa. Several characterizations were analyzed, including compressed density, relaxed density, relaxation ratio, percentage of moisture content, burning rate, percentage of water resistance index, percentage of durability index, specific fuel consumption, the puncture test, and the hardness test. The characterization results showed that the prepared briquettes have good quality, and the best was for 10% of adhesive. The best durability index was for briquettes with 30% of adhesive. The compressed density and water resistance index were optimum when using 40% of adhesive. In general, briquettes with a low amount of adhesive have a high-density value, low moisture content, and a long flammability. This research is expected to convey information regarding how to reuse rice waste as an adhesive for briquettes.

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Combustion Behavior of Spanish Lignocellulosic Briquettes

Cited by 9 publications

References 41 publications

Development, properties and potential applications of high-energy fuel briquettes incorporating coal dust, biowastes and post-consumer plastics

Development, properties and potential applications of high-energy fuel briquettes incorporating coal dust, biowastes and post-consumer plastics

Biomass gasification or combustion for generating electricity in Spain: Review of its current situation according to the opinion of specialists in the field

Mechanical Properties of briquette by mixing rice and micrometer-sized carbon particles from potato and yam skins

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