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Development of beds of hydrogel for remotion of water from liquid fuels

Grant number: 18/16269-2
Support type:Scholarships in Brazil - Master
Effective date (Start): December 01, 2018
Effective date (End): September 30, 2020
Field of knowledge:Engineering - Chemical Engineering
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal researcher:Maria Regina Wolf Maciel
Grantee:Fernanda Brito dos Santos
Home Institution: Faculdade de Engenharia Química (FEQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated scholarship(s):19/21649-1 - Synthesis and characterization of poly(acrylamide-co-sodium and acrylate) hydrogel with atomic transfer radical polymerization - ATRP for study of swelling kinetic, BE.EP.MS


Water is always present in liquid, soluble, free or emulsified form, being its origin in the composition of the feedstock or in the incorporation of water during the productive processes or transport and storage. High content of water can affect significantly the quality of fuels, allowing the growth of microorganisms that use the fuel itself as a source of energy. Some of the consequences of the microbiological development are the generation of sludge, the elevation of turbidity and the corrosion of tanks and mechanical components of motor vehicles. In this context, this research project proposes the development of high performance beds that use structured packings coated with hydrogels to remove water from liquid fuels such as diesel oil and biodiesel. The structured filling matrices will be initially produced in nylon (formed of polyamide) through Selective Laser Sintering (SLS). In a second moment, it is intended to use direct laser metal sintering (DLMS) technology for the production of stainless steel beds. The structured matrices will be coated with polyacrylamide hydrogels (PAAm), polyacrylonitrile (PAN) along with other polymers formed with sodium acrylate, acrylic acid and lactic acid. It is emphasized that, through the experimental planning, different models of three-dimensional structures will be tested for water removal improvements and pressure drop minimization. The determination of the physical and chemical properties of the hydrogel will be carried out by means of Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), density, porosity and surface area, among others. It is expected that prototypes built can be incorporated into automotive vehicles, the fuel distribution logistics chain and oil processing refineries.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SANTOS, F. B.; MIRANDA, N. T.; SCHIAVON, M. I. R. B.; FREGOLENTE, V, L.; MACIEL, M. R. WOLF. Thermal degradation kinetic of poly(acrylamide-co-sodium acrylate) hydrogel applying isoconversional methods. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, v. 146, n. 6, p. 2503-2514, DEC 2021. Web of Science Citations: 3.

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