Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Characterization and Study of Stability in Crude Oil of the Ceramic Composite Alumina-Zirconia-Lantania Produced by Solid State Sintering at Different Temperatures
Submission Author:
Bruna Constantino , PE
Co-Authors:
Larissa Albuquerque, Ricardo Artur Sanguinetti Ferreira, Yogendra Prasad Yadava, Bruna Constantino
Presenter: Bruna Constantino
doi://10.26678/ABCM.COBEM2017.COB17-1949
Abstract
Several problems affect oil and gas producing companies as a result of the corrosion process. The crude oil composition and production conditions lead to corrosive attacks of its equipment for storage and transport, which represents a large portion of the total costs of this sector. Thus, ceramic tiles applied through spraying hypersonic heat are being studied, aimed at applications such as protection against corrosion in metallic arrays of the oil industry and that must be chemically stable and resistant to corrosion and high temperatures. This work studied ceramics produced from ceramic oxides Al2O3, ZrO2 e La2O3, where were fixed 2% (by mass) of Lantania and added 10%, 15% and 20% of a Zirconia in an Alumina matrix. Ceramic powders were produced by mixing in ball mill, compressed in uniaxial press and sintered in one of the three different thermal cycles – 1350ºC, 1500ºC e 1650ºC, obtaining 09 different samples. The samples had their stability analysed after 90 days of continues immersion on crude oil from source wells of sea and land of the Sergipe. For characterization, Optical Microscopy (OM), Vickers micro Hardness and X-Ray Diffraction (XRD) techniques were used. Studies of the stability of the ceramic indicate that all the samples showed good response after soaking in crude oil, but the best mechanical properties belong to the ceramics sintered at 1650º C.
Keywords
Alumina-Zirconia-Lantania, Composites, corrosion, Crude Oil, Ceramic coatings
