Simulation study of the production of high purity ethanol using extractive distillation: Revisiting the use of inorganic salts

Hernández-Hernández, Erick de Jesús; Cabrera-Ruiz, Julián; Hernández‐Escoto, Héctor; Gutiérrez‐Antonio, Claudia; Hernández, Salvador

doi:10.1016/j.cep.2021.108670

Cited by 8 publications

(6 citation statements)

References 23 publications

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“…Whenever available, the experimental α ij were added. Predictions were carried out with the azeotropic composition free of IL/salt. − For comparison purposes, the relative volatilities in the presence of calcium chloride, a well-known entrainer to break alcohol/water azeotropes, − were estimated and included.…”

Section: Resultsmentioning

confidence: 99%

Imidazolium Chloride Ionic Liquid Mixtures as Separating Agents: Fuel Processing and Azeotrope Breaking

et al. 2022

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Relevant chemical separations for the petrochemical and chemical industries include the removal of aromatic hydrocarbons from aliphatics, the desulfurization and denitrification of fuels, and the separation of azeotropic mixtures containing alkanols. In an attempt to contribute to the development of novel technologies, the potentialities of imidazolium chloride ionic liquid (IL) mixtures as separation agents were investigated. Selectivities, capacities, and solvent performance indices were calculated through the activity coefficients at infinite dilution of organic solutes and water in the imidazolium chloride IL: [C8mim]Cl, [C12mim]Cl, and the equimolar mixture of [C4mim]Cl and [C12mim]Cl. Results show that the imidazolium chloride IL might be appropriately tailored for specific purposes, in which an increase in the proportion of cations containing larger alkyl chains tends to increase the overall affinity with organic solutes. The IL designer solvent concept was explored by comparing the IL equimolar mixture results with the intermediary [C8mim]Cl. The COSMO-RS thermodynamic model was also applied, showing it to be a promising tool for a fast qualitative screening of potential separation agents for specific separation processes.

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Section: Resultsmentioning

confidence: 99%

Imidazolium Chloride Ionic Liquid Mixtures as Separating Agents: Fuel Processing and Azeotrope Breaking

et al. 2022

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“…However, these two types of distillations have different process configurations and obey different feasibility rules [141]. Various types of entrainers have been studied in the literature: liquid solvents (e.g., ethylene glycol [142], glycerol [143], dissolved salts (e.g., lithium chloride, calcium chloride, sodium chloride, and potassium chloride [144]), ionic liquids (e.g., 1-butyl-3-methylimidazolium chloride, 1-ethyl-3-methylimidazolium tetrafluoroborate) [145], 1-ethyl-3-methylpyridinium ethylsulfate [146], hyperbranched polymers (polyesters and polyesteramides and polyethylene glycol) [147], and complex solvents [148]. Extractive distillation configuration depends on the entrainer used for ethanol purification.…”

Section: Distillation-based Processesmentioning

confidence: 99%

The Production of Bioethanol from Lignocellulosic Biomass: Pretreatment Methods, Fermentation, and Downstream Processing

Beluhan,

Mihajlovski,

Šantek

et al. 2023

Energies

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Bioethanol is the most widely used alternative transportation fuel to petrol. Bioethanol is considered a clean, renewable, and environmentally friendly fuel that can contribute to climate change mitigation, decreased environmental pollution, and enhanced energy security. Commercial bioethanol production is based on traditional agricultural crops such as corn, sugarcane, and sugarbeet, primarily used as food and feed. In order to meet the growing demand for this fuel and decrease competition in the food and biofuel sectors for the same feedstock, other raw materials and process technologies have been intensively studied. Lignocellulosic biomass is one of the most abundant renewable resources, with it being rich in compounds that could be processed into energy, transportation fuels, various chemical compounds, and diverse materials. Bioethanol production from lignocellulosic biomass has received substantial attention in recent decades. This review gives an overview of bioethanol production steps from lignocellulosic biomass and challenges in the production process. The following aspects of bioethanol production are covered here, including pretreatment methods, process strategies, strain development, ethanol isolation and purification, and technical hurdles.

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“…En la producción de combustibles líquidos, las columnas de destilación térmicamente acopladas se han empleado para la purificación de bioetanol (Kiss y Suszwalak, 2012;Hernández-Hernández et al, 2022), biobutanol (Errico et al, 2016;Segovia-Hernández et al, 2020), al igual que naftas, bioturbosina y diésel verde (Gutiérrez-Antonio et al, 2015; Gutiérrez-Antonio et al, 2021). Los resultados de estos estudios muestran que es posible reducir entre 20% y 30% de los requerimientos energéticos para la purificación de estos biocombustibles, con respecto a las secuencias de destilación convencionales.…”

Section: Destilación Térmicamente Acopladaunclassified

Intensificación de procesos: alternativa sustentable para la producción de biocombustibles para el sector transporte

Olán-Acosta

Barajas-Fernández

Gutiérrez‐Antonio

2023

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Los biocombustibles se han identificado como una estrategia que contribuye a la recuperación económica sostenible. Los biocombustibles se generan a partir de biomasa, y permiten generar energía eléctrica y/o térmica, así como energía motriz, la cual es de gran relevancia para el sector transporte, en el que se requieren principalmente biocombustibles líquidos. La producción de biocombustibles líquidos es factible técnicamente, pero su factibilidad financiera es aún un reto. Por ello, en este trabajo se presentan las rutas de procesamiento para obtener biogasolina, biodiésel, diésel verde y bioturbosina, así como las estrategias de la intensificación de procesos con mayor potencial de aplicación; en éstas se incluyen columnas de destilación térmicamente acopladas, destilación reactiva, así como extracción reactiva.

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Simulation study of the production of high purity ethanol using extractive distillation: Revisiting the use of inorganic salts

Cited by 8 publications

References 23 publications

Imidazolium Chloride Ionic Liquid Mixtures as Separating Agents: Fuel Processing and Azeotrope Breaking

Imidazolium Chloride Ionic Liquid Mixtures as Separating Agents: Fuel Processing and Azeotrope Breaking

The Production of Bioethanol from Lignocellulosic Biomass: Pretreatment Methods, Fermentation, and Downstream Processing

Intensificación de procesos: alternativa sustentable para la producción de biocombustibles para el sector transporte

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