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Previous issue date: 2010-12-22 / Crude oil is a complex liquid mixture of organic and inorganic compounds that
are dominated by hydrocarbons. It is a mixture of alkanes from the simplest to more
complex aromatic compounds that are present derivatives such as gasoline, diesel,
alcohol, kerosene, naphtha, etc.. These derivatives are extracted from any oil, however,
only with a very high quality, in other words, when the content of hydrocarbons of low
molecular weight is high means that production of these compounds is feasible. The
American Petroleum Institute (API) developed a classification system for the various
types of oil. In Brazil, the quality of most of the oil taken from wells is very low, so it is
necessary to generate new technology to develop best practices for refining in order to
produce petroleum products of higher commercial value. Therefore, it is necessary to
study the thermodynamic equilibrium properties of its derivative compounds of interest.
This dissertation aims to determine vapor-liquid equilibrium (VLE) data for the systems
Phenilcyclohexane - CO2, and Cyclohexane - Phenilcyclohexane - CO2 at high pressure
and temperatures between 30 to 70oC. Furthermore, comparisons between measured
VLE experimental data from this work and from the literature in relation to the Peng-
Robinson molecular thermodynamic model, using a simulation program SPECS
IVCSEP v5.60 and two adjustable interaction parameters, have been performed for
modeling and simulation purposes. Finally, the developed apparatus for determination
of phase equilibrium data at high pressures is presented / O petr?leo bruto ? uma complexa mistura l?quida de compostos org?nicos e
inorg?nicos em que predominam os hidrocarbonetos, desde os alcanos mais simples at?
os arom?ticos mais complexos. Nessa mistura encontram-se presentes derivados como
gasolina, diesel, ?lcool, querosene, nafta, g?soleos, etc., estes derivados s?o extra?dos de
qualquer petr?leo, por?m, somente os com uma qualidade bastante elevada, ou seja,
com teor de hidrocarbonetos de baixo peso molecular alto s?o realmente vi?veis a
produ??o destes compostos. A American Petroleum Institute (API) desenvolveu um
sistema de classifica??o dos tipos de petr?leo. No Brasil a qualidade da maioria dos
petr?leos retirado dos po?os ? muito baixa, sendo assim, ? necess?rio obter novos
conhecimentos a fim de desenvolver melhores pr?ticas de refino com o intuito de
produzir derivados de petr?leo de alto valor comercial. Para isso se faz necess?rio o
estudo de equil?brio termodin?mico de seus derivados. Esta disserta??o de mestrado
consiste em determinar dados de equil?brio l?quido-vapor dos sistemas Fenilciclohexano
- CO2 e Fenilciclohexano - Ciclohexano e CO2 a alta press?o e temperaturas entre 30 a
70 graus Celsius. Compara??es entres os dados experimentais de equil?brio liquidovapor
encontrados no laborat?rio e na literatura foram realizadas em rela??o aos valores
obtidos pelo modelo termodin?mico molecular de Peng-Robinson usando o programa
computacional SPECS IVCSEP v5.60, com dois par?metros de intera??o ajust?veis,
para fins de modelagem e simula??o. Al?m disso, ? apresentado o desenvolvimento de
um equipamento de alta press?o no laborat?rio para determina??o de dados de equil?brio
de fases
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/15799 |
| Date | 22 December 2010 |
| Creators | Guerra Neto, Dival de Brito |
| Contributors | CPF:08580772800, http://lattes.cnpq.br/2621516646153655, Barros Neto, Eduardo Lins de, CPF:59545844434, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4798645D3, Oliveira, Humberto Neves Maia de, CPF:22179763468, http://lattes.cnpq.br/7302633941782540, Dariva, Cl?udio, CPF:54494206091, http://lattes.cnpq.br/6913799864277174, Chiavone Filho, Osvaldo |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Engenharia Qu?mica, UFRN, BR, Pesquisa e Desenvolvimento de Tecnologias Regionais |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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