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Previous issue date: 2015-08-07 / As ?guas produzidas est?o associadas aos processos de explora??o e produ??o de petr?leo e g?s. Estas ?guas s?o misturas complexas e possuem muitos contaminantes como petr?leo, metais pesados e gases, como o H2S e o CO2, que tamb?m s?o componentes presentes na ?gua de produ??o. Os gases s?o originados a partir da pr?pria composi??o do petr?leo e do g?s natural. O H2S deve ser removido dos fluidos da ind?stria do petr?leo, pois ? um g?s altamente t?xico, potencialmente letal e misturado ? ?gua forma um ?cido corrosivo aos dutos e linhas de fluxo e outros equipamentos. Na atual legisla??o ambiental estabelecida pelo CONAMA, a concentra??o de sulfetos nas ?guas de descarte, deve ser inferior a 1 ppm e, para reuso, 0,3ppm. Neste trabalho, foram testadas tr?s aminas comerciais solubilizadas em QAV visando a remo??o simult?nea de ?leo e H2S em ?guas produzidas com concentra??o inicial de 0,660 ppm de H2S. A opera??o de extra??o l?quido-l?quido foi estudada fazendo-se uso do aparelho Misturador-Decantador ? Invers?o de Fases (MDIF). As aminas comerciais testadas foram: DUOMEEN T, ARCUARD 2C-75 e DUOMEEN O. Todas apresentavam fun??o tensoativa e car?ter hidrof?bico (alquilaminas). Os teores de H2S e petr?leo (ppm) foram avaliados antes e ap?s o contato entre as fases org?nica (solu??o org?nica amina/QAV) e aquosa (?gua produzida). Ap?s testes de extra??o em funis de separa??o conduzidos em batelada selecionou-se a amina ARCUAD 2C-75, para realizar os testes sistem?ticos com o MDIF (Misturador-Decantador ? Invers?o de Fases). As condi??es operacionais foram estabelecidas com base nas seguintes vari?veis: rela??o org?nico/aquoso (1/5;1/3; 2/5) em v:v; vaz?o total (60; 65; 70; 75; 80; 85; 90; 100) em L/H; e concentra??o do extratante amina solubilizada em QAV (0,1; 0,15 e 0,20) em (v:v). Os resultados experimentais foram analisados com base em dois approaches, o Planejamento Estat?stico Experimental e a Rede Neural Artificial (NRA). Obteve-se uma efici?ncia de remo??o simult?nea de sulfetos e petr?leo de 74 e 83%, respectivamente, para uma rela??o org?nico/aquoso de 1/3; uma vaz?o de 90 L/H e uma concentra??o de extratante amina em QAV de 0,10 v:v. / The produced water is associated with the processes of exploration and production of oil and gas. These waters are complex mixtures and have many contaminants such as oil, heavy metals and gases such as H2S and CO2, which are also present as components into produced waters. The gases are originated from the same composition of oil and natural gas. The H2S must be removed from the fluids of the oil industry, as it is a highly toxic, potentially lethal gas and mixed with water it forms a corrosive acid able to damage pipelines, flow lines and other equipments. In the current environmental legislation established by CONAMA, the final concentration of sulfides in the waters for the purposes of disposal must be less than 1 ppm and reuse 0,3 ppm. In this work, three commercial amines were tested on mixing with jet fuel in order to remove dispersed oil and H2S from produced water with initial concentration of 0.660 ppm H2S. The operation of liquid-liquid extraction was studied by using a modified Mixer-Settler named MDIF (Misturador-decantador ? Invers?o de Fase). Three commercial amines were studied: DUOMEEN T, ARCUARD 2 C-75 and DUOMEEN O. All of them showed surface activity and hydrophobic character function (alkylamines). The contents of H2S and petroleum (ppm) were evaluated before and after the contact between organic phase (organic solution of amine + QAV) and water phase (produced water). After tests of extraction into separation funnels carry out in batch scale it was selected amine ARCUAD 2 C-75, to perform systematic tests with MDIF (Mixer-Settler based on Phase Inversion). The operating conditions were established on the basis of the following variables: organic/aqueous ratio (1/5; 1/3 and 2/5) in v:v; total flow (60; 65; 70; 75; 80; 85; 90 and 100) in L/H; and concentration of extracting agent (amine) dissolved into jet fuel (0.1; 0.15; and 0.20;) in (v:v). The experimental results were analyzed based on two different approaches, Statistical Design and Artificial Neural Network (ARN). It was obtained an efficiency of simultaneous removal of sulfides and oil of 74 and 83 %, respectively, for an organic/aqueous ratio of 1/3; a total flow of 90 L/H and a concentration of extracting agent (amine) into QAV of 0.10 v:v.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/20566 |
| Date | 07 August 2015 |
| Creators | Oliveira, Ana Karla Costa de |
| Contributors | 16838572400, http://lattes.cnpq.br/4322467752580322, Duarte, M?rcia Maria Lima, 11721456368, http://lattes.cnpq.br/6784689928387553, Sousa, Magna Ang?lica dos Santos Bezerra, 02014315485, http://lattes.cnpq.br/0425277527484841, Florido, Priscilla Lopes, 02097295703, http://lattes.cnpq.br/7730364325731241, Martins, Rosiney Ara?jo, 23603798287, http://lattes.cnpq.br/4573194065617255, Paulo, Jo?o Bosco de Ara?jo |
| Publisher | Universidade Federal do Rio Grande do Norte, PROGRAMA DE P?S-GRADUA??O EM ENGENHARIA QU?MICA, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| 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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