Novo artigo publicado!! Adsorption study of non-ionic ethoxylated nonylphenol surfactant for sandstone reservoirs: Batch and continuous flow systems (2022)
08/09/2022
Novo artigo publicado!! Adsorption study of non-ionic ethoxylated nonylphenol surfactant for sandstone reservoirs: Batch and continuous flow systems (2022)
(Journal of Molecular Liquids)
Autores: Jefferson David Coutinho de Araujo, Gregory Oliveira, Maria Clara de Meneses Lourenço, Dennys Correia da Silva, Tereza Neuma de Castro Dantas, Marcos Allyson Rodrigues e Alcides de Oliveira Wanderley Neto
Os autores agradecem ao Laboratório de Engenharia de Reservatórios de Petróleo (LABRES/UFRN), Laboratório de Tecnologia de Surfactantes e Processos de Separação (LTT/IQ/UFRN) e ao Laboratório de Membranas e Coloides (LAMECO/IQ/UFRN) do Instituto de Química (IQ) da Universidade Federal do Rio Grande do Norte (UFRN) pela oferta de espaço, equipamentos e técnicas utilizadas neste manuscrito. Também agradecem ao PRH-26 e Agência Nacional do Petróleo, Gás Natural e Biocombustíveis (ANP-Brasil) pelo apoio financeiro.
The use of surfactants in Enhanced Oil Recovery (EOR) projects has been extensively studied. The process of adsorption of these substances in the reservoir rocks is strictly important, since it provides a change in their wettability, allowing an increase in the oil recovery factor. However, the understanding of how the adsorption of surfactants occurs and the main phenomena involved in this process is still widely discussed. Thus, the objective of this work is to investigate and elucidate the adsorption behavior of surfactants of the Nonylphenol ethoxylated family (10EO, 40EO and 100EO) in sandstone rocks. It was possible to verify that the higher the degree of ethoxylation of the surfactant solutions used, the lower the adsorption capacity. The batch adsorption presented the Redlich-Peterson model as the answer that best determines the adsorption isotherm, where the adsorption occurs in monolayer and multilayers [...].
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