Steam Production
Mostrando 1-12 de 82 artigos, teses e dissertações.
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1. INCREASED ENERGY COGENERATION IN THE SUGAR-ENERGY SECTOR WITH THE USE OF SUGARCANE STRAW, ELECTRIFICATION OF DRIVES, AND HIGH-DRAINAGE ROLLERS IN THE EXTRACTION
ABSTRACT The sugar-energy sector stands out in the production of electrical energy in the Brazilian energy matrix. The updating of Law 9,427 allowed increasing the limit of power injected in the transmission or distribution systems of existing projects from 30 to 50 MW, encouraging studies of expansion and/or implementation of new cogeneration projects. This
Eng. Agríc.. Publicado em: 2020-04
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2. SUCROSE CRYSTALLIZATION: MODELING AND EVALUATION OF PRODUCTION RESPONSES TO TYPICAL PROCESS FLUCTUATIONS
Abstract This work describes a phenomenological model of the two-massecuite system for sucrose crystallization, developed using EMSO software. In most Brazilian sugarcane industries, sucrose crystallization is performed using this system. This process is considered to be a fundamental step in obtaining sugar of the desired quality and accounts for a substant
Braz. J. Chem. Eng.. Publicado em: 09/12/2019
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3. Production of Carbon Foams from Rice Husk
The production of a material with rigid, multifunctional three-dimensional porous structure at a low cost is still challenging to date. In this work, a light and rigid carbon foam was prepared using rice husk as the basic element through a simple fermentation process followed by carbonization. For the fermentation process, the amount of biological yeast (7.5
Mat. Res.. Publicado em: 11/11/2019
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4. Sorghum (Sorghum bicolor) Pellet Production and Characterization
ABSTRACT Pelletization is a technique used to compact biomass, generating a granulated material called pellets, with high energy density. The objectives of this work were to produce pellets made from Sorghum (Sorghum bicolor) residuals and to evaluate its quality. Firstly, the residuals were characterized, followed by the production of the pellets. An experi
Floresta Ambient.. Publicado em: 23/05/2019
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5. Influence of aseptic surge tank venting on equipment sterilization
Resumo Tanques assépticos (AST) são sistemas aplicados para estocagem do produto estéril até o envase, mantendo a condição de esterilidade comercial obtida nas etapas anteriores do processo. Para evitar a recontaminação microbiológica do produto, uma condição de esterilidade deve ser alcançada no tanque antes da produção, pela aplicação de u
Braz. J. Food Technol.. Publicado em: 14/03/2019
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6. Production of Furan Compounds from Sugarcane Bagasse Using a Catalytic System Containing ZnCl2/HCl or AlCl3/HCl in a Biphasic System
In this work, two catalytic systems combining Lewis and Brønsted acids (ZnCl2/HCl and AlCl3/HCl) were applied in a tetrahydrofuran (THF)/NaClaq biphasic system to produce furan compounds from plant polysaccharides. The following cellulosic matrices were applied for this purpose: α-cellulose, microcrystalline cellulose and both native and steam-exploded sug
J. Braz. Chem. Soc.. Publicado em: 2018-05
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7. Enhanced ethanol production at commercial scale from molasses using high gravity technology by mutant S. cerevisiae
Abstract Very high gravity (VHG) technology was employed on industrial scale to produce ethanol from molasses (fermented) as well as by-products formation estimation. The effect of different Brix° (32, 36 and 40) air-flow rates (0.00, 0.20, 0.40, and 0.60 vvm) was studied on ethanol production. The maximum ethanol production was recorded to be 12.2% (v/v) a
Braz. J. Microbiol.. Publicado em: 2017-07
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8. Thermodynamic Feasibility of Pure Hydrogen Production and Storage in Iron and Germanium Based Double Chemical Looping Process
Solid iron based low or medium temperature chemical loop is considered as a possible option of hydrogen storage and production. In the method, hydrogen is produced via iron oxidation with steam, and in the next phase iron oxide is reduced with hydrogen, synthesis gas or methane. In the reduction stage the reaction is terminated when the atmosphere still cont
J. Braz. Chem. Soc.. Publicado em: 2017-06
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9. Ethanol Production from Sugarcane Bagasse Using Phosphoric Acid-Catalyzed Steam Explosion
The steam explosion was carried out in the absence (autohydrolysis) and presence of phosphoric acid to evaluate the effects of temperature (180 and 210 °C), acid concentration (0 and 19 mg g-1, dry basis) and pretreatment time (5 and 10 min) on the structure and reactivity of sugarcane bagasse. Glucan recovery was used as the main response factor for pretre
J. Braz. Chem. Soc.. Publicado em: 2016-10
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10. PRODUCTION OF HYDROGEN FROM THE STEAM AND OXIDATIVE REFORMING OF LPG: THERMODYNAMIC AND EXPERIMENTAL STUDY
Abstract The objective of this paper was to use a thermodynamic analysis to find operational conditions that favor the production of hydrogen from steam and oxidative reforming of liquefied petroleum gas (LPG). We also analyzed the performance of a catalyst precursor, LaNiO3, in order to compare the performance of the obtained catalyst with the thermodynamic
Braz. J. Chem. Eng.. Publicado em: 2015-09
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11. Advances in ethanol reforming for the production of hydrogen
Catalytic steam reforming of ethanol (SRE) is a promising route for the production of renewable hydrogen (H2). This article reviews the influence of doping supported-catalysts used in SRE on the conversion of ethanol, selectivity for H2, and stability during long reaction periods. In addition, promising new technologies such as membrane reactors and electroc
Quím. Nova. Publicado em: 2014-06
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12. Life Cicle Inventory for Lead Azide Manufacture
ABSTRACT: Like any other manufactured chemical compounds, explosives are produced using chemical reactants and other utilities (steam, heat, compressed air, feed water and electricity) and generate a set of environmental impacts (waste water, solid and water residue and waste heat, for example). On top of that, one can count the intrinsic hazard characterist
J. Aerosp. Technol. Manag.. Publicado em: 2014-03