Upgrading of Extra-Heavy Crude Oils by Dispersed Injection of NiO-PdO/CeO2±δ Nanocatalyst-Based Nanofluids in the Steam.

ABSTRACT: The main objective of this study is to evaluate the injection of a dispersed nanocatalyst-based nanofluid in a steam stream for in situ upgrading and oil recovery during a steam injection process. The nanocatalyst was selected through adsorption and thermogravimetric experiments. Two nanoparticles were proposed, ceria nanoparticles (CeO2±δ), with and without functionalization with nickel, and palladium oxides (CeNi0.89Pd1.1). Each one was employed for static tests of adsorption and subsequent decomposition using a model solution composed of n-C7 asphaltenes (A) and resins II (R) separately and for different R:A ratios of 2:8, 1:1, and 8:2. Then, a displacement test consisting of three main stages was successfully developed. At the beginning, steam was injected into the porous media at a te

SUBMITTER: Medina OE 

PROVIDER: S-EPMC6956154 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature