Optimization of a Fusel Oil Separation System Using a Dividing Wall Column

Pedroza, José de Jesús Mendoza; Hernández, Juan Gabriel Segovia; Orjuela, Álvaro; Hernández, Salvador

doi:10.1016/b978-0-444-63577-8.50017-6

Cited by 3 publications

(4 citation statements)

References 7 publications

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“…In this way, the fusel oil was considered as a mixture of ethanol, water, propanol, isobutanol and isoamyl alcohol (BATISTA; MEIRELLES, 2011;FERREIRA et al, 2013;CALAM et al, 2014;MAYER et al, 2015). The assertions of the aforementioned authors and of Pedroza et al (2015) were the basis for the determination of the fractions of each of these components (Table 1). Environment for the study accomplishment…”

Section: Mixture Determinationmentioning

confidence: 99%

“…For each of them, the several analyzed models are practically confused with one another and even with the ideal situation. In addition, the pairs: Figure 1 (1-Propanol/Ethanol) - Figure 3 According Pedroza et al (2015) 98% (molar fraction) of the fusel oil composition consists of ethanol, water, and isoamyl alcohol. Mayer et al (2015) claims this superior alcohol corresponds to approximately 60% (% w/w) of this blend.…”

Section: Type Of Studied Graphmentioning

confidence: 99%

“…The worldwide concern to seek clean and renewable sources of energy has boosted Brazil, the world's largest sugarcane producer, by making continuous efforts in its sugar and alcohol industry, with a purpose to become it sustainable and to promote ethanol from sugar cane as an imminent substitute for fossil fuels. The Brazilian production of this bio-fuel is considered as a world reference due to its superior productivity rates and its cogeneration system; as a result the country consolidates as one of the leaders in this market, and maintains its commitment to reduce the gases that cause the greenhouse effect (BATISTA et al, 2011;PEDROZA et al, 2015;IPEA, 2016;BENITES-LAZARO et al, 2017;CONAB, 2018). Besides, the advances in the sugar and alcohol industry interfere directly in the national economy, with job creation and the valuation GDP (Gross Domestic Product) (BRINKMAN et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…The latter being its main component, and also responsible for its great commercial appeal. This superior alcohol has a market value of approximately three times the value of fuel ethanol, and its main destination is the production of esters to be used as flavoring agents, industrial solvents and plasticizers (BATISTA; MEIRELLES, 2011;FERREIRA et al, 2013;CALAM et al, 2014;DIAS et al, 2015;MAYER et al, 2015;PEDROZA et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Liquid-Vapor Equilibrium Thermodynamics of the Fusel Oil: A Case Study

Corrêa¹,

Melo²,

Silva³

2019

Enci Bio

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Fusel oil is a by-product of the process of recovering hydrated ethanol, consisting of a mixture of superior alcohols, ethanol, water, among other components. Its commercial interest is mainly due to the presence of isoamyl alcohol, one of the raw materials used in the synthesis of esters, which compounds are relevant for the chemical industry. The recovery of this superior alcohol involves unit operations based on phase equilibrium, which for multicomponent systems can be studied in software that simulates the operation of equipment, in order to present predictions of interactions between its components, reducing errors, time and costs of design. In the industrial, academic and scientific fields, there are numerous challenges regarding the design of separation processes and the monitoring of mixing effects in typical operations, and the Aspen Plus process simulation and optimization platform excels in solving these issues. The current study aims to predict the Liquid-Vapor Equilibrium of the fusel oil, which was considered as a mixture of five components, from the behavioral analysis of each of the binaries that compose it. Several models were investigated, observing the deviations of the ideality as well as the azeotrope formation. The most suitable model to describe the behavior of the studied mixture was determined with the aid of literature data for the Liquid-Vapor Equilibrium of the Isoamyl alcohol/Water binary. The results show that the Wilson modeling presented better adjustment to the experimental data, although modeling with modified Wilson also showed appreciable adjustments. TERMODINÂMICA DO EQUILÍBRIO LÍQUIDO-VAPOR DO ÓLEO FÚSEL: UM ESTUDO DE CASORESUMO O óleo fúsel é um subproduto do processo de recuperação de etanol hidratado, constituído por uma mistura de alcoóis superiores, etanol, água, dentre outros componentes. Seu interesse comercial se deve principalmente à presença do álcool isoamílico, uma das matérias-primas utilizadas na síntese de ésteres, compostos estes relevantes para a indústria química. A recuperação deste álcool superior envolve operações unitárias baseadas no equilíbrio de fases, que para sistemas multicomponentes pode ser estudada em softwares que simulam o funcionamento de equipamentos, de forma a apresentar previsões das interações entre os seus componentes, reduzindo erros, tempo e custos de projeto. No âmbito industrial, acadêmico e cientifico, existem inúmeros desafios acerca do dimensionamento de processos de separação e acompanhamento dos efeitos de mistura em operações típicas, e a plataforma de simulação e otimização de processos Aspen Plus se destaca na solução destas questões. O presente trabalho tem como objetivo prever o equilíbrio Líquido-Vapor do óleo fúsel, que foi considerado como uma mistura de cinco componentes, a partir da análise comportamental de cada um dos binários que o compõe. Foram investigadas modelagens diversas, observando os desvios da idealidade e também quanto à formação de azeótropos. O modelo mais adequado para descrever o comportamento da mi...

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Section: Mixture Determinationmentioning

confidence: 99%

Section: Type Of Studied Graphmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Liquid-Vapor Equilibrium Thermodynamics of the Fusel Oil: A Case Study

Corrêa¹,

Melo²,

Silva³

2019

Enci Bio

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Isobaric vapor-liquid equilibrium for binary system of tert-butanol + n-pentanol at 101.325 kPa: Measurement and correlation

Mustain,

Wibowo,

Sindhuwati

et al. 2024

AIP Conference Proceedings

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Hybrid Process Flow Diagram for Separation of Fusel Oil into Valuable Components

Missyurin,

Cursaru,

Neagu

et al. 2024

Processes

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Ethanol production by fermentation results in obtaining, in addition to the main product, ethyl alcohol, by-products and secondary products, which include carbon dioxide, fusel oil, and ester–aldehyde cut. Fusel oil, despite its low yield and the large volume of ethanol production, accumulates at distilleries, which ultimately raises the question of its disposal or the rational use of this by-product. Fusel oil, being a complex mixture, can serve as a source of technical alcohols used in various sectors of the economy, including the food industry, pharmaceuticals, organic synthesis, perfume, and cosmetics industries, as well as the production of paints and varnishes. However, the complexity of using fusel oil lies in its difficult separation. The reason for this is the presence of water, which forms low-boiling azeotropes with aliphatic alcohols. Our study aimed to develop a process flow diagram (PFD) that allows individual components from fusel oil to be obtained without extraneous separating agents (not inherent in fusel oil). This condition is necessary to obtain products labeled as natural for further use in the food, perfume, cosmetic, and pharmaceutical industries. The distinctive feature of this work is that the target product is not only isoamyl alcohol but also all other alcohols present in the composition of fusel oil. To achieve this goal and create a mathematical model, the Aspen Plus V14 application, the Non-Random Two Liquid (NRTL) thermodynamic model, and the Vap-Liq/Liq-Liq phase equilibrium were used. Fusel oil separation was modeled using a continuous separation PFD to obtain ethanol, water, isoamyl alcohol, and raw propanol and butanol cuts. The Sorel and Barbet distillation technique was used to isolate ethanol. The isolation of isopropanol and 1-propanol, as well as isobutanol and 1-butanol, was modeled using the batch distillation method. The isolation of fusel oil components was based on their thermodynamic properties and the selection of appropriate techniques for their separation, such as extraction, distillation, pressure swing distillation, and decantation. The simulation of fusel oil separation PFD showed the possibility of obtaining the components of a complex mixture without separating agents, as discussed earlier. Ethanol corresponds to the quality of rectified ethyl alcohol, and 1-butanol and isoamyl alcohols to anhydrous alcohols, whereas isopropanol (which contains an admixture of ethanol), 1-propanol, and isobutanol are obtained as aqueous solutions of different concentrations of alcohols. However, due to a distillation boundary in the raw propanol and butanol cuts, these mixtures cannot be separated completely, which leads to the production of intermediate fractions. To eliminate intermediate fractions and obtain anhydrous isopropanol, 1-propanol, and isobutanol in the future, it is necessary to solve the dehydration problem of either fusel oil or the propanol–butanol mixture.

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Optimization of a Fusel Oil Separation System Using a Dividing Wall Column

Cited by 3 publications

References 7 publications

Liquid-Vapor Equilibrium Thermodynamics of the Fusel Oil: A Case Study

Liquid-Vapor Equilibrium Thermodynamics of the Fusel Oil: A Case Study

Isobaric vapor-liquid equilibrium for binary system of tert-butanol + n-pentanol at 101.325 kPa: Measurement and correlation

Hybrid Process Flow Diagram for Separation of Fusel Oil into Valuable Components

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