Influence of Fusel Oil Components on the Distillation of Hydrous Ethanol Fuel (Hef) in a Bench Column

Mayer, Flávio Dias; Féris, Liliana Amaral; Marcílio, Nilson Romeu; Staudt, Paula Bettio; Hoffmann, Ronaldo; Baldo, Vanessa

doi:10.1590/0104-6632.20150322s00003215

Cited by 15 publications

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“…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. There are some studies in the literature that only consider these three components to characterize the fusel oil.…”

Section: Type Of Studied Graphmentioning

confidence: 94%

“…Although the composition of the fusel oil depends on factors such as the raw material used for its production, and the conditions of the fermentation medium (CALAM et al, 2014;AWAD, et al, 2018;EUSTÁCIO et al, 2018), the system was modeled according to the compatibility between mixtures of the literature that summarize actual compositions processed by the Brazilian sugar and alcohol sector. 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).…”

Section: Mixture Determinationmentioning

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%

“…In this operation, which is based on the volatility differences, there is the intimate contact between the liquid phase and the vapor phase, which seek to be in equilibrium, in order to promote the increase of the interfacial mass transfer and the recovery of the more volatile component in the vapor, and the least volatile in the liquid. In this way, knowledge about the thermodynamics of the Vapor Liquid Equilibrium is needed to understand the mixing effects to Project and to lead satisfactorily the recovery processes from interest compounds (MCCABE et al, 2000;MAYER 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: Type Of Studied Graphmentioning

confidence: 94%

Section: Mixture Determinationmentioning

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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“…Esse álcool pode ser extraído a partir do óleo fúsel [12]. O óleo fúsel é um resíduo obtido da produção de etanol [13], que geralmente são gerados 2,5 litros de Por outro lado, ao final de 6 horas de reação ocorrendo a 110ºC não se observa a separação de fases. Este mesmo comportamento é relatado por [16] que utilizando KOH como catalisador para a transesterificação isoamílica do óleo de soja não observou separação entre glicerina e biodiesel.…”

Section: Introductionunclassified

Estudo da utilização de CaOLi na síntese de biodiesel

Celeri¹,

Barañano²,

Castro³

2019

Blucher Physics Proceedings

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O biodiesel é um combustível derivado de biomassa como óleo vegetal e gordura animal, sendo um combustível promissor substituto ao diesel em virtude de ser renovável e de baixa toxicidade. Neste trabalho foi realizado a síntese de biodiesel isoamílico de óleo de soja utilizando o catalisador heterogêneo óxido de cálcio impregnado com lítio (CaOLi). Os testes catalíticos ocorreram à 25ºC, 65ºC e 110ºC, durante 6 horas. O produto foi verificado qualitativamente através de cromatografia em camada delgada, em que confirmou a formação de biodiesel à 110ºC.

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The metabolic activity of denitrifying microorganisms accumulating polyphosphate in response to addition of fusel oil

Tuszyńska

Kaszubowska

Kowal

et al. 2018

Bioprocess Biosyst Eng

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The effect of distillery waste product (fusel oil) as an alternative external organic carbon source (EOCS) was investigated in terms of the metabolic properties of denitrifying polyphosphate accumulating organisms (DPAOs). Samples of the non-acclimated biomass were collected from a local full-scale wastewater treatment plant employing A2/O type bioreactors. The acclimated biomass was obtained after cultivation (with fusel oil added) in a bench-scale reactor with a process configuration similar to the full-scale bioreactor. Changes in the functional properties of the biomass were investigated by measuring the phosphate release/uptake rates (PRRs and PURs), and nitrate utilization rates (NURs) with fusel oil in anaerobic-anoxic batch tests. Furthermore, a validated extended Activated Sludge Model no 2d (ASM2d) was used as a supporting tool to analyze the experimental results and estimate the contribution of DPAOs to the overall denitrification. In the non-acclimated biomass with fusel oil, the PRRs, PURs and NURs were low and close to the rates obtained in a reference test without adding EOCS. With the acclimated biomass, the PUR and NUR increased significantly, i.e., 3.5 and 2.7 times, respectively. In the non-acclimated biomass, approximately 60.0 ± 3.6% and 20.0 ± 2.2% of the total NUR was attributed to the utilization of endogenous carbon and examined EOCS, respectively. The remaining portion (20% of the total NUR) was attributed to PHA utilization (linked to PO4-P uptake) by DPAOs. With the acclimated biomass, the contribution of the EOCS to the NUR increased to approximately 60%, while the contribution of the endogenous carbon source decreased accordingly. Very accurate predictions of PURs and NURs (R2 = 0.97–1.00) were obtained with the extended ASM2d. Based on model simulations, it was estimated that the activity of DPAOs and denitrifying ordinary heterotrophic organisms corresponded to approximately 20% and 80% of the total NUR, respectively.Electronic supplementary materialThe online version of this article (10.1007/s00449-018-2022-0) contains supplementary material, which is available to authorized users.

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Influence of Fusel Oil Components on the Distillation of Hydrous Ethanol Fuel (Hef) in a Bench Column

Cited by 15 publications

References 14 publications

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

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

Estudo da utilização de CaOLi na síntese de biodiesel

The metabolic activity of denitrifying microorganisms accumulating polyphosphate in response to addition of fusel oil

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