A5018541299- Process Optimization and Integration
- Advanced Control Systems Optimization
- Phase Equilibria and Thermodynamics
- Agricultural and Food Sciences
- Innovative Microfluidic and Catalytic Techniques Innovation
- Solar Thermal and Photovoltaic Systems
- Education and Digital Technologies
- Scheduling and Optimization Algorithms
- Biodiesel Production and Applications
- Heat Transfer and Optimization
- Business and Management Studies
- Higher Education Learning Practices
- Petroleum Processing and Analysis
- Environmental Chemistry and Analysis
- Edible Oils Quality and Analysis
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Freezing and Crystallization Processes
- Plant Surface Properties and Treatments
- Grey System Theory Applications
- Thermal and Kinetic Analysis
- Evasion and Academic Success Factors
- Higher Education and Employability
- Chemistry Education and Research
- Graph Theory and Algorithms
- Environmental Sustainability and Education
Universidade Estadual de Campinas (UNICAMP)
2006-2023
Nesta
2015
University of Manchester
2011
Hospital de Clínicas da Unicamp
2000
Engineering education is being called upon to move a student-centered teaching. New challenges demand curriculum that considers set of competencies enable engineers learn autonomously and develop solid technical relevant soft skills. We present top-down methodology for developing competency-based curricula, which was employed conceive new chemical engineering at the University Campinas. Our based on four main steps: i) definition desired profile students with bachelor's degree in Chemical...
The sugar and ethanol production is one of the most important economical activities in Brazil, mainly due its high efficiency competitiveness. Ethanol done by a series steps: juice extraction, treatment, fermentation, distillation. extraction treatment common operation both industries. process begins with cane usually mills, where compressed between large cylinders for separation from bagasse. Recently, system, called diffuser, was introduced some plants. In diffusers, after preparation...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSalt effect on phase equilibria by a recirculating stillRoger Josef Zemp and Artur Zaghini FrancesconiCite this: J. Chem. Eng. Data 1992, 37, 3, 313–316Publication Date (Print):July 1, 1992Publication History Published online1 May 2002Published inissue 1 July 1992https://pubs.acs.org/doi/10.1021/je00007a010https://doi.org/10.1021/je00007a010research-articleACS PublicationsRequest reuse permissionsArticle Views148Altmetric-Citations22LEARN ABOUT...
In this work the temperature-enthalpy profile and exergy loss are used together to improve thermodynamic efficiency of distillation columns, by identifying possible benefits using side exchangers. The method proposed is compute analyse distribution losses across column stages. present aims at applying stage-by-stage analysis non-ideal mixtures, e.g. methanol/water. For these systems use excess properties required: Gibbs free energy for phase equilibrium enthalpy solution balance. Initial...
Distillation efficiency can be improved by columns with multiple phase divisions, also known as parastillation (vapor division) and metastillation (liquid division). Although, previous studies demonstrate that these configurations improve separation efficiency, little is about the mechanisms cause this improvement. These are elucidated through exergetic driving force analyses. Methanol-ethanol multicomponent hydrated bioethanol purifications were investigated. Thermodynamic exergy losses...
The quality of the resulting pulping continuous digesters is monitored by measuring Kappa number, which a reference residual lignin. control kappa number carried out mainly in top digester, therefore it important to get some indication this analysis beforehand. In context, aim work was obtain prediction model advance laboratory results. This paper proposes new approach using Box & Jenkins methodology develop dynamic for predicting from Kamyr digester an eucalyptus Kraft pulp mill Brazil....
A new methodology for the optimisation of feed conditions as well calculation minimum reflux ratio distillation columns is presented. The reversible profile approach used saturated liquid feeds extended to consider other conditions. For flashed feed, fraction stream compute column pinch and ratio. modifications required subcooled superheated vapor are discussed, a procedure estimate those proposed. presented allows identification optimal condition, without having resort full stage-by-stage procedure.
The vapor phase, in parastillation, or the liquid metastillation columns, is divided at least into two internal flows. Two questions are addressed: (ii) Is splitting equal streams best solution can different split ratios have advantages? How sensitive process performance to fluctuations around selected partition rate? Depending on answers, these columns may require specific control systems. Nine ratios, including usual 50:50, were considered binary and multicomponent alcoholic distillation....
A new procedure for estimating area and capital cost targets of constrained heat exchanger networks is presented. The method allows match exchangers with more than one tube pass. based on modelling the problem as a non-linear formulation where forbidden matches are included constraints temperature difference correction due to multipass in model. difficulty converging solution additional imposed by required use two-level approach: at inner level, simple pass obtained, outer level computed fed...
No processo de extração do óleo soja forma-se a Miscela, que é uma mistura e hexano. O separação destes dois componentes denominado Destilação da Miscela. Esta composta basicamente operação evaporação stripping Neste trabalho, desenvolveu-se modelagem matemática para o modelo baseado em balanços massa energia relações equilíbrio; e, sua validação foi feita comparando-se os resultados obtidos com dados operacionais indústria COAMO (Cooperativa Agrícola Mouraoense). Em seguida, elaborado,...
Cooling water systems are the most common method for re-jection of waste heat in chemical processes. Conventional re-circulating cool-ing have a network coolers parallel configuration, de-manding both large cooling circulation and towers. Althoughreuse reduces amount that is necessary sys-tem and, hence, increases tower performance capacity, it maysignificantly increase pressure drop due to series-parallel arrangements.This paper develops methodology calculation basedon Graph Theory. From...
No processo de extração do óleo soja forma-se a Micela, que é uma mistura e hexano. O separação destes dois componentes denominado Destilação da Micela. Esta composta basicamente operação evaporação stripping Neste trabalho, desenvolveu-se modelagem matemática para modelo baseado em balanços massa energia relações equilíbrio; sua validação foi feita comparando-se os resultados obtidos com dados operacionais indústria COAMO (Cooperativa Agrícola Mouraoense). Em seguida, o elaborado, fez-se as...
The sugar and ethanol production is one of the most important economical activities in Brazil, mainly due to its efficiency competitively. alcohol made through following steps: juice extraction, purification, fermentation distillation. process begins with cane usually mills, where extracted by compression between great pronged cylinders. goes purification operations it converted an ethanol/water mixture called wine, after, heated a heat exchanger distillation operation, as sub product...