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https://hdl.handle.net/10216/104928
Autor(es): | Emilio J. González Noélia Calvar Elena Gómez Ángeles Domínguez |
Título: | Separation of benzene from alkanes using 1-ethyl-3-methylpyridinium ethylsulfate ionic liquid at several temperatures and atmospheric pressure: Effect of the size of the aliphatic hydrocarbons |
Data de publicação: | 2010 |
Resumo: | The ionic liquid 1-ethyl-3-methylpyridinium ethylsulfate, [EMpy][ESO4], was studied for the separationof benzene from aliphatic hydrocarbons (octane or nonane) by solvent extraction through the determinationof the (liquid + liquid) equilibrium (LLE) of the ternary systems: {octane (1) + benzene(2) + [EMpy][ESO4] (3)} and {nonane (1) + benzene (2) + [EMpy][ESO4] (3)} at T = (283.15 and 298.15) Kand atmospheric pressure. Binodal curves were determined using the cloud point method, and tie-linecompositions were obtained by density measurements. The values of selectivity and distribution coefficient,derived from the tie-line data, were used to decide if this ionic liquid can be used as potential solventfor the separation of benzene from aliphatic hydrocarbons using liquid extraction. These resultswere analyzed and compared to those previously reported for the systems {hexane + benzene+ [EMpy][ESO4]} and {heptane + benzene + [EMpy][ESO4]}. The experimental results show that thisionic liquid is suitable for the extraction of benzene from mixtures containing octane and nonane. Theconsistency of tie-line data was ascertained by applying the OthmerTobias and Hand equations. Theexperimental results for the ternary systems were well correlated with the NRTL model. No literaturedata were found for the mixtures discussed in this paper. |
Assunto: | Ciências da engenharia e tecnologias Engineering and technology |
Áreas do conhecimento: | Ciências da engenharia e tecnologias Engineering and technology |
URI: | https://repositorio-aberto.up.pt/handle/10216/104928 |
Tipo de Documento: | Artigo em Revista Científica Internacional |
Condições de Acesso: | restrictedAccess |
Aparece nas coleções: | FEUP - Artigo em Revista Científica Internacional |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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68066.pdf Restricted Access | 347.22 kB | Adobe PDF | Request a copy from the Author(s) |
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