Chemical Engineering Chemical Processes
Mostrando 1-12 de 42 artigos, teses e dissertações.
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1. A CONSTRUÇÃO DE CONCEITOS SOBRE GESTÃO E TRATAMENTO DE RESÍDUOS QUÍMICOS: UMA EXPERIÊNCIA DE FORMAÇÃO DE ESTUDANTES DE QUÍMICA
This work aims to analyze the contribution of a training action to the awareness and improvement of the knowledge of students of Chemistry and Chemical Engineering of Universidade Federal do Rio Grande do Sul (UFRGS) courses, regarding the processes of management and treatment of chemical wastes and wastewater generated in the experimental course. The resear
Quím. Nova. Publicado em: 2020-03
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2. Mapeamento dos aspectos hidrogeoquímicos de águas subterrâneas a partir de estatística multivariada e redes neurais artificiais
RESUMO O objetivo central deste trabalho foi realizar o mapeamento dos aspectos hidrogeoquímicos de águas subterrâneas usando a estatística multivariada e redes neurais artificiais como subsídio para identificação de padrões espaciais. Para tal, foi executado um estudo de caso em aquíferos no município de Lençóis, Bahia, na região da Chapada Dia
Eng. Sanit. Ambient.. Publicado em: 05/08/2019
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3. Use of Natural Deep Eutectic Solvents for Polymerization and Polymer Reactions
Green chemistry is a key opportunity in chemistry and chemical engineering today because it can potentially preserve the environment and human health. It entails the choice of natural biodegradable raw materials and solvents, environmentally acceptable processes, and minimal use of non-hazardous chemicals. Previously, deep eutectic solvents (DES) have found
J. Braz. Chem. Soc.. Publicado em: 2019-04
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4. Denaturation processes of collagen from cow bones as a function of temperature
ABSTRACT The thermal stability of collagen is of great interest for the scientific communities both of medicine and archaeology. In medicine, the interest is focused to the reconstruction and repair of bone and cartilage, given the frequency and importance of pathological situations. In contrast, in archaeology the interest is focused to infer from buried an
Matéria (Rio J.). Publicado em: 19/07/2018
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5. Simulation of a competitive business environment: a case study in a Chemical Engineering Program
Abstract This paper reports a case study about the experience of two semesters of the discipline Industrial Chemical Processes in School of Engineering of Lorena with the Project-Based Learning approach. Both semesters were based on a set of rules which established the division of the class into groups to submit projects related to the syllabus of the discip
Prod.. Publicado em: 24/07/2017
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6. Certain Aspects of Univalent Function with Negative Coefficients Defined by Bessel Function
ABSTRACT Key words: In recent years, applications of Bessel functions have been effectively used in the modelling of chemical engineering processes and theory of univalent functions.In this paper, we study a new class of analytic and univalent functions with negative coefficients in the open unit disk defined by Modified Hadamard product with Bessel function
Braz. arch. biol. technol.. Publicado em: 23/01/2017
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7. Effects of Different Plasma Nitrided Layers on the Tribological Performance of DLC Coatings
When multifunctional surface engineering processes that combine purpose-oriented phases are applied to soft substrates, a combination of high wear resistance, high load support and low coefficients of friction can be achieved. In this study, the effects of different nitrided layers on the tribological behaviour of a diamond-like carbon (DLC) film deposited o
Mat. Res.. Publicado em: 12/09/2016
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8. METODOLOGIA EXPERIMENTAL PARA REAÇÕES GÁS-LÍQUIDO
Although the gas-liquid reactions are employed in many industrial processes, this issue in the most of time is not included in the curriculum of Chemistry and Chemical Engineering courses. This work aims to propose the study of gas-liquid reaction for the degree course, considering a widespread system, the reaction of CO2-NaOH. A reaction mechanism was propo
Quím. Nova. Publicado em: 2016-06
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9. Estimating reaction constants by ab initio molecular modeling: a study on the oxidation of phenol to catechol and hydroquinone in advanced oxidation processes
Molecular modeling is growing as a research tool in Chemical Engineering studies, as can be seen by a simple research on the latest publications in the field. Molecular investigations retrieve information on properties often accessible only by expensive and time-consuming experimental techniques, such as those involved in the study of radical-based chain rea
Brazilian Journal of Chemical Engineering. Publicado em: 2012-03
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10. Supporting chemical process design under uncertainty
A major challenge in chemical process design is to make design decisions based on partly incomplete or imperfect design input data. Still, process engineers are expected to design safe, dependable and cost-efficient processes under these conditions. The complexity of typical process models limits intuitive engineering estimates to judge the impact of uncerta
Brazilian Journal of Chemical Engineering. Publicado em: 2010-09
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11. The role of nonequilibrium thermo-mechanical statistics in modern technologies and industrial processes: an overview
The nowadays notable development of all the modern technology, fundamental for the progress and well being of world society, imposes a great deal of stress in the realm of basic Physics, more precisely on Thermo-Statistics. We do face situations in electronics and optoelectronics involving physical-chemical systems far-removed-from equilibrium, where ultrafa
Brazilian Journal of Physics. Publicado em: 2010-03
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12. ProduÃÃo de biodiesel assistida por ultra-som / Production of biodiesel assisted by ultrasound
Este trabalho apresenta a utilizaÃÃo de uma nova tecnologia de produÃÃo de biodiesel utilizando ultra-som, em substituiÃÃo a tÃcnica tradicional que emprega aquecimento e agitaÃÃo vigorosa da mistura reacional. O processo de produÃÃo de biodiesel utilizando ultra-som foi aplicado aos processos de esterificaÃÃo de Ãcidos graxos de origem vegetal
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/02/2009