Banca de DEFESA: LEANDRO DO ROZARIO TEIXEIRA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : LEANDRO DO ROZARIO TEIXEIRA
DATE: 15/12/2023
TIME: 08:00
LOCAL: Ambiente Virtual
TITLE:

Optical system for real-time monitoring of the free water content in diesel - Methodology applicable to storage tanks for by-products of the petroleum industry.

KEY WORDS:

PHOTOMETRY, FLUORIMETRY, FREE WATER, DIESEL

PAGES: 80
BIG AREA: Outra
AREA: Robótica, Mecatrônica e Automação
SUMMARY:

Products and byproducts derived from oil, such as diesel, can incorporate water during the production, transportation, and storage process, as well as the biodiesel present in diesel. The presence of water in these products has always been a problem for the industry, causing serious damage to the equipment where they will be used and contributing to corrosion in the tanks responsible for their storage. The water content in fuels can be classified into three categories: soluble water, emulsified water, and free water. Soluble water occurs when the portion of water is able to be dissolved in the fuel, depending on thermodynamic parameters, such as temperature, and the chemical composition of the same. Emulsified water is a mixture of water and diesel in which the water droplets are dispersed in a diesel matrix. The water droplets are so small that they do not sediment, but remain suspended in the diesel. Emulsified water can be formed at any process in the diesel production line. Free water occurs due to the difference in density between the fuel and water, producing a mixture of distinct and perfectly distinguished phases. This work deals with the development of a real-time monitoring and analysis methodology that will compose an engineering solution capable of identifying the presence of free water in storage tanks, making the proper disposal in an intelligent and autonomous way. For this purpose, a test bench was built that simulates the storage process of diesel/biodiesel, composed of: (i) storage tank, (ii) disposal tank, (iii) cleaning tank, (iv) instrumented optical unit operating in the near infrared and ultraviolet range, in addition to acquiring images, (v) electromechanical devices for controlling and actuating the operating modes of the developed plant, and (vi) expert software for controlling, acquiring, and analyzing the acquired data. The optical unit is capable of analyzing and classifying in real time the fluid present in storage tanks by near-infrared spectroscopy and UV spectrophotometry, as well as the use of computer vision techniques for fluid analysis through image recognition.

COMMITTEE MEMBERS:
Presidente - 1194490 - IURI MUNIZ PEPE
Externo à Instituição - GEYDISON GONZAGA DEMETINO - UFRB
Externo à Instituição - HERMAN PESSOA LIMA JUNIOR - CBPF
Externo à Instituição - FELIPE PEREIRA FLEMING - PETROBRAS
Externo à Instituição - ANTONIO FERREIRA DA SILVA - UFBA