Master's Dissertation
DOI
https://doi.org/10.11606/D.75.2016.tde-09082016-141934
Document
Author
Full name
Carlos Roberto Batista Tasso
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2016
Supervisor
Committee
Lima Neto, Benedito dos Santos (President)
Cordeiro, Paulo Jorge Marques
Boscolo, Mauricio
Title in Portuguese
A busca de um método espectrofotométrico com complexos de rutênio para estimação quantitativa da 1,3,5-triazina-1,3,5-(2H,4H,6H)-trietanol residual usada para eliminação do H2S presente no refino do petróleo
Keywords in Portuguese
complexos de rutênio
refino de petróleo
s-triazina
sulfeto de hidrogenio
UV-Vis
Abstract in Portuguese
Nesse trabalho foi estudada uma técnica para a detecção de OHTC na água salina. Descobriu-se que certos complexos de rutênio em determinados valores de pH reagem com a molécula de OHTC e isto é detectável por espectrofotometria UV-Vis. Foram estudados os complexos fac-[RuCl2(S-DMSO)3(O-DMSO)] (complexo 1), {[(DMSO)2H][trans-RuCl4(DMSO)2]} (complexo 2) e cis-[RuCl2(bpy)2].2H2O (complexo 3). O complexo 1 possui um dos ligante (O-DMSO) que pode ser substituído pelo OHTC. Já o complexo 2 possui um dos ligantes (S-DMSO) na posição trans um ao outro, e o complexo 3 possui os 2 íons Cl- para tal finalidade. Determinou-se que o complexo 1 é viável, mesmo em presença de sais presentes na água do mar. Assim a reação foi realizada em função do tempo, variação do pH, temperatura e concentração de OHTC. Nos outros dois complexos os estudos foram realizados sem a variação da temperatura e concentração de OHTC.
Title in English
The search for a spectrophotometric method with ruthenium complexes for the quantitative estimation of residual 1,3,5-triazine-1,3,5 (2H, 4H, 6H) -trietanol used to eliminate the H2S present in the petroleum refining
Keywords in English
hydrogen sulfide
petroleum refining
ruthenium complexes
s-triazine
UV-Vis
Abstract in English
p>In this work we studied a technique for detection of OHTC in water. It was discovered that complexes involving ruthenium, on determined pH values, react with the OHTC molecule and this is detectable by UV-VIS spectroscopy. The complexes fac-[RuCl2(S-dmso)3(O-dmso)] (complex 1), {[(DMSO)2H][trans-Ru(DMSO)2Cl4]} (complex 2), and cis-[RuCl2(bpy)2].2H2O (complex 3) were studied. The complex 1 present one position ( O - DMSO) which can be substituted by the OHTC. Additionally, the complex 2 present two ligands ( S- DMSO) trans between each other, and the complex 3 present two chloride ions for the same porpose of complex 1 respectively. It was determined that the complex 1 was able to react with OHTC even in presence of the salts present in sea water. Thereby, the reaction involving complex 1 and OHTC was monitored in function of the time, pH, temperature, and finally concentration of OHTC. On the other two complexes, the reaction was studied without variation of temperature and concentration of OHTC.
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2016-08-30
