An evaluation was made of the properties of sugarcane bagasse during the storage process for subsequent burning in a boiler. Samples of bagasse were collected over a period of 150 days from the Caete sugar mill (MG) at various points of the stockpile soon after the sugarcane was pressed to extract its juice, as well as from natural bagasse, dry and damp. Thermal analyses of the samples were carried out and the results indicated that, during the storage of bagasse, dry or damp, the biomass loses up to 32% of its calorific power, due to decomposition of the hemicellulose.
#2Alexandre Szklo(UFRJ: Federal University of Rio de Janeiro)H-Index: 32
Last. Pedro Rochedo(UFRJ: Federal University of Rio de Janeiro)H-Index: 14
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Abstract null null Biomass energy conversion with carbon capture and storage (BECCS) can lead to the net removal of CO2 from the atmosphere. Calcium looping (CaL) is a promising carbon capture process for existing or greenfield capture-ready biomass-fired plants. This paper investigates the technical and economic performance of BECCS using CaL systems as a retrofit to Brazilian cogeneration plants fuelled with sugarcane bagasse. Bagasse-fired cogeneration plants integrated with CaL were compared...
The objective of the present study was to characterize raw materials and biochars produced under laboratory conditions, in addition to providing information regarding the feasibility of using biochar in the soil. Thus, in first stage, the biochar was produced from the dry sample of biosolids (BP) and sugarcane bagasse (BCP), by means of slow pyrolysis at a temperature of 350°C for 30 minutes. In a second stage, the characterization of the raw materials and their respective biochars was carried o...
Last. Vânya M. D. Pasa(UFMG: Universidade Federal de Minas Gerais)H-Index: 19
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Abstract Sugarcane bagasse is an abundant residue from the ethanol/sugar industries and its liquefaction can be a low-cost process for the production of liquid biofuels. However, the resulting biocrude has high acidity, which requires an upgrading before being used. In this study, ethanol and fusel oil, which is the heavy residue of ethanol distillation made up of higher alcohols, were used as solvents for the liquefaction of bagasse. The 1:10 biomass:solvent ratio mixture was used at 300 °C for...
Besides mineral sources, silica can be found in plants, particularly in the epidermis, since during their growth plants absorb the mono-silicic acid present in the soil, storing it as a natural form of protection, insect pest control and transpiration regulator. Among the plants that present high levels of silica in their ashes, we can highlight sugarcane, with Brazil being the largest producer of sugarcane derived (sugar and bioethanol) in the world, accounting 615 million tons per year. Thus, ...
Inorganic fillers (mainly obtained from residue recycling/reuse operations) have been widely used as an alternative reinforcement in polymer composites to replace commercial silica. In this study, we analyze the interaction between Sugarcane Bagasse Ash (SCBA) and natural rubber using Bis[3-(triethoxysilyl)propyl] Tetrasulfide (TESPT) as the silane coupling agent and Tetramethylthiuram Disulfide (TMTD) as the curing alternative system. Based on the results, we were able to validate their influen...
Abstract Bagasse particle is used in energy generation, and the usual method for determining their size distribution is sieving. Traditional methods for measuring the bagasse particle size distribution, such as sieving, do not evaluate the effect of the irregular particle shape, producing results that are not always applicable to the prediction of fluid dynamic behavior. This work determined size distribution of bagasse particles considering their aerodynamic behavior. Physical-chemical characte...
#2Igor V. Pedrosa(UFRJ: Federal University of Rio de Janeiro)
Last. Marcelo M. Pereira(UFRJ: Federal University of Rio de Janeiro)H-Index: 17
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The conversion of biomass to green hydrocarbons offers great advantages to shorten our path to sustainability. Unfortunately, none of the existing approaches produces a biocrude that is compatible (in terms of density, viscosity, and reactivity) with current refinery processes. In this work, sugarcane bagasse was converted completely to a biocrude rich in O-isopropylidene acetals by an acetalization process using a continuous flow reactor. The hemicellulose is the first component that transforme...
Abstract A technical, economic and environmental analysis of different biorefinery configurations is carried out, considering the integration of different biomass technologies with sugar and ethanol plants. Biochemical routes for the production of lignocellulosic ethanol and biobutanol from ABE (Acetone-Butanol-Ethanol) fermentation were considered as alternatives for conversion, also a thermochemical process for the production of syngas. Second-generation ethanol favors better land use, and bio...
Last. M. S. Crespi(UNESP: Sao Paulo State University)H-Index: 3
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Human population growth, high consumption and unsustainable management of products and services are exceeding the sustainable use of natural resources. The use of disposable diapers, not only baby but also geriatric ones, reaches a high value, increasing considerably the urban solid residue generation. Currently, all this urban solid residue goes to landfills, taking up to 400 years to decompose, as most of its components are derived from oil. Its use as energy source, as it is already done with...
