Characterization and production of banana crop and rice processing waste briquettes

Abstract

With the purpose of adding value to the waste of banana crop and rice processing, banana leaves and pseudostem, and rice husk were prepared and characterized through proximate and ultimate chemical analyses, high heating value (HHV), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The prepared waste was then compacted into briquettes in a hydraulic press at 18 MPa for 1 s. The resulting briquettes were characterized through the same analyses used in waste and through mechanical compressive strength. The waste moisture content, between 8 and 15%, were adequate for briquetting and combustion. The briquettes exhibited the maximum energy release under combustion at temperatures that were lower than the waste's. The rice husk and its briquettes had a lower energy release in comparison with the other waste. The HHV of the waste ranged from 15 to 18 MJ/kg. The compaction of the waste resulted in an increase of the HHV for the rice husk and the briquettes presented the highest compressive strength: 19 MPa. From these three waste samples that were studied, the banana leaves presented the best features, properties, and potential for generating energy as briquettes. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 1266–1273, 2018

Empirical Studies on Biomass Briquette Production: A Literature Review

“…Even so, there is a predominance of one size of granulometry over the others inside the briquettes. For de Oliveira Maia et al [42], 60% of the biomass particles in its briquettes had a particle size of 2.36 mm, while the remaining 40% had varying sizes from 0.5 to 5 mm. Kumar and Chandrashekar [37] used large (5 to 6 mm) and small (≤1 mm) particles in the proportion of 1: 4.…”

“…Depending on the biomass, it is not necessary to perform such processes, as occurred with the in-natura rice husk used by Oliveira Maia et al [42] whose moisture content was already within the appropriate for briquetting (10%), as well as its initial granulometry. It is worth noting in Table 1 that, regardless of the machine used to produce the briquettes, it was necessary to carry out processes to reduce the initial size of the biomass and its initial moisture through drying.…”

“…Table 6 also allows us to observe that there is no common sense as to the ideal pressing time for all densification processes. De Oliveira Maia et al [42], reported that operating conditions, such as pressure and compaction time, are chosen according to the configuration and availability of the briquetting equipment. In this way, some works, such as that of Sette Júnior et al [36] carry out preliminary tests to determine the ideal level for compaction time.…”

Effect of sludge from wastewater treatment processing of a tobacco agroindustry in ceramics matrix

“…These values are close to the values found by proximate analysis, previously presented in Table . The second stage of mass loss in the temperature range of 180‐600°C is caused by the combination of total decomposition of hemicellulose, cellulose, and partial decomposition of lignin by pyrolysis at lower temperatures . At this stage, the waste exhibited the highest percentage of mass loss, ie 48%.…”

Biomass Conversion into Solid Composite Fuel for Bed-Combustion

“…The main disadvantage of most biomass composite fuels [3][4][5][6] is the high cost due to the use of expensive and energy-consuming press equipment in the production. Decrease of force is needed for the briquette molding make possible replacement of the press by less energy-intensive and cheaper a Corresponding author : kazakov@tpu.ru screw equipment.…”