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Previous issue date: 2013-07-19 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The petroleum production is associated to the produced water, which has dispersed and
dissolved materials that damage not only the environment, but also the petroleum
processing units. This study aims at the treatment of produced water focusing mainly on
the removal of metals and oil and using this treated water as raw material for the
production of sodium carbonate. Initially, it was addressed the removal of the following
divalent metals: calcium, magnesium, barium, zinc, copper, iron, and cadmium. For this
purpose, surfactants derived from vegetable oils, such as coconut oil, soybean oil, and
sunflower oil, were used. The investigation showed that there is a stoichiometric
relationship between the metals removed from the produced water and the surfactants used
in the process of metals removal. It was also developed a model that correlates the
hydrolysis constant of saponified coconut oil with the metal distribution between the
resulting stages of the proposed process, flocs and aqueous phases, and relating the results
with the pH of the medium. The correlation coefficient obtained was 0.963. Next, the
process of producing washing soda (prefiro soda ahs ou sodium carbonate) started. The
resulting water from the various treatment approaches from petroleum production water
was used. During this stage of the research, it was observed that the surfactant assisted in
the produced water treatment, by removing some metals and the dispersed oil entirety. The
yield of sodium carbonate production was approximately 80%, and its purity was around
95%. It was also assessed, in the production of sodium carbonate, the influence of the type
of reactor, using a continuous reactor and a batch reactor. These tests showed that the
process with continuous reactor was not as efficient as the batch process. In general, it can
be concluded that the production of sodium carbonate from water of oil production is a
feasible process, rendering an effluent that causes a great environmental impact a raw
material with large scale industrial use / A produ??o do petr?leo ? associada ? ?gua produzida, que apresenta materiais
dispersos e dissolvidos que prejudicam n?o s? o meio ambiente, mas tamb?m, as unidades
de processamento de petr?leo. Este trabalho objetiva o tratamento da ?gua de produ??o
enfocando, principalmente, a remo??o de ?leo e de metais e a utiliza??o desta ?gua tratada
como mat?ria-prima para produ??o de barrilha. Inicialmente, verificou-se a remo??o dos
seguintes metais bivalentes: c?lcio, magn?sio, b?rio, zinco, cobre, ferro e o c?dmio.
Utilizou-se para este fim tensoativos derivados de ?leos vegetais, tais como: ?leo de coco,
?leo de soja e ?leo de girassol. Verificou-se que existe uma rela??o estequiom?trica entre
os metais removidos da ?gua de produ??o e os tensoativos utilizados no processo.
Tamb?m, desenvolveu-se um modelo que relaciona a constante de hidr?lise do ?leo de
coco saponificado com a distribui??o do metal entre as fases resultantes do processo
proposto, fases floco e aquosa, relacionando os resultados com o pH do meio. Obteve-se
um coeficiente de correla??o na ordem de 0,963. Em seguida, iniciou-se o processo de
obten??o da barrilha. Utilizou-se a ?gua resultante das diversas correntes de tratamento da
?gua produzida. Nesta etapa do trabalho, observou-se que o tensoativo auxiliava no
tratamento da ?gua de produ??o, removendo parte dos metais e a totalidade do petr?leo
disperso. O rendimento da produ??o da barrilha foi da ordem de 80% e sua pureza ficou
em torno de 95%. Avaliou-se, ainda, no processo de produ??o da barrilha, a influ?ncia do
tipo de reator, utilizando-se um reator cont?nuo e um reator em batelada. Estes ensaios
mostraram que o processo cont?nuo n?o foi t?o eficiente quanto o processo em batelada.
De forma geral, pode-se concluir que a produ??o de barrilha a partir da ?gua de produ??o
de petr?leo ? um processo vi?vel, transformando um efluente que causa grande impacto
ambiental em mat?ria-prima de larga utiliza??o industrial / 2020-01-01
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/15927 |
| Date | 19 July 2013 |
| Creators | Nunes, Shirlle Katia da Silva |
| Contributors | CPF:07286937391, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783139Z0&dataRevisao=null, Melo, Josette Lourdes de Sousa, CPF:10200720406, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787094H6, Dantas Neto, Afonso Avelino, CPF:05641284491, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783215D9, Foletto, Edson Luiz, CPF:54536839020, http://lattes.cnpq.br/6550340290019699, Peres, Ant?nio Eduardo Clark, CPF:04457641634, http://lattes.cnpq.br/8666548473150908, Barros Neto, Eduardo Lins de, Dantas, Tereza Neuma de Castro |
| 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/doctoralThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/embargoedAccess |
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