Equilibria in Furfural-Water Systems under Increased Pressure and the Influence of Added Salts upon the Mutual Solubilities of Furfuraland Water

Curtis, R. G.; Hatt, H. H.

doi:10.1071/ch9480213

Cited by 8 publications

(12 citation statements)

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“…Finally, the paper published by Curtis and Hatt in 1948 needs to be included in this discussion. 83 The main added value of this paper is the liquid-vapor equilibrium data presented in the first two parts. However, in the last part, the reaction rates of loss reactions of furfural in pure water and in sulphuric acid solutions are presented.…”

Section: Furfural Loss Reactionsmentioning

confidence: 99%

Mechanistic and kinetic aspects of pentose dehydration towards furfural in aqueous media employing homogeneous catalysis

Marcotullio²,

2014

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Section: Furfural Loss Reactionsmentioning

confidence: 99%

Mechanistic and kinetic aspects of pentose dehydration towards furfural in aqueous media employing homogeneous catalysis

Marcotullio²,

2014

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“…The vapor-liquid equilibrium behavior of water-furfural is such that an azeotrope is formed, also at higher pressures (Curtis and Hatt 1948). Figure 9 depicts this two phase behavior (Zeitsch 2000) for the part in which the vapor phase is enriched in furfural.…”

Section: Mtc Processmentioning

confidence: 99%

Overview of Biorefineries based on Co-Production of Furfural, Existing Concepts and Novel Developments

Jong¹,

Marcotullio²

2010

International Journal of Chemical Reactor Engineering

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At Delft University of Technology theoretical and experimental research is carried out towards selective production of furfural from renewable biomass. Furfural is an interesting molecule that has been identified as a platform chemical for a multitude of chemical products and fuel (additives).Acidic biomass hydrolysis and subsequent dehydration of the obtained C 5 sugar xylose leads to furfural. The reaction selectivity is a point of concern for reactor design, as furfural can further react to loss products. The residue of this process mainly consists of the remaining main biomass constituents, cellulose and lignin. Mineral matter is to a large extent extracted to the acid in the primary hydrolysis. This implies that the residue has the potential to be a better feedstock for thermo-chemical conversion, as e.g. alkali and chlorine species-now extracted-potentially cause different types of problems (slagging, fouling, agglomeration etc.).An interesting option for example might be to convert this improved feedstock into synthesis gas via a gasification process, which then needs to be conditioned and upgraded for the production of green transportation fuels. In this line, a new biorefinery generation is created, which selectively uses the hemi-cellulose part of biomass. An analysis is presented towards current (integrated) concepts for novel, * During the writing of the article our dear friend and colleague Henk Heidweiller passed away, we owe him a word of thanks for his contributions and ideas in the field of furfural production from biomass. The Delft Research Centre for Sustainable Industrial Processes (DC-SIP) is acknowledged for financial support via the "Biorefuge" project. Finally, Ir. Jan Dijk and Ir. Shengbin Ma are kindly acknowledged for their work and advises related to the process design part.Brought to you by | Bibliotheek TU Delft Authenticated | 172.16.1.226 Download Date | 8/14/12 8:54 AM improved furfural production process. This paper presents some current process concepts and a novel continuous process design.

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“…Microsoft Excel is used for early VLE modeling and quantitative calculation of the model's suitability, while MATLAB R2021a is used for curve visualization of the modeling. In this study, the UNIQUAC model will be applied on a furfural and water mixture distillation data by [10] at 6.17 kg/cm 2 or 4,538.4 mmHg pressure. The UNIQUAC equation for VLE will be as follows.…”

Section: Methodsmentioning

confidence: 99%

“…There are only several research that observed VLE models on furfural and water mixtures. This study was conducted to develop a VLE curve from the distillation data of [10] study with the UNIQUAC model. The distillation data from Curtis and Hatt has been tested with the van Laar model, which is why UNIQUAC is chosen to prove that other models can be used to simulate the VLE curve.…”

Section: Introductionmentioning

confidence: 99%

Vapor-Liquid Equilibrium (VLE) Curve for Furfural Purification from Oil Palm Empty Fruit Bunch Hydrolysate Solution with the UNIQUAC Model

Handita

Fahriz

Harahap

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Furfural is the main Oil Palm Empty Fruit Bunch (OPEFB) hydrolysis product. It can achieve high purity from hydrolysate distillation. Its equipment design can be done by utilizing vapor-liquid equilibrium (VLE) data to achieve high furfural purity. The purpose of this research is to develop a Vapor-Liquid Equilibrium (VLE) curve for furfural purification from Oil Palm Empty Bunch hydrolysate solution with the Universal Quasi Chemical (UNIQUAC) model. Distillation data is obtained from literature and examined on the Universal Quasi Chemical (UNIQUAC) model. Calculations for average deviation and R2 are also made to show the accuracy of the model quantitatively. The modeled VLE curve indicates that the UNIQUAC model and the literature distillation pattern are not ideal, and the UNIQUAC curve pattern closely follows the literature pattern. The average deviation and R2 values for this UNIQUAC model are 0.0954 and 0.297, respectively. These values are still acceptable and show that UNIQUAC can be used as useful model distillation data of furfural and water as the representatives of an OPEFB hydrolysate solution.

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Equilibria in Furfural-Water Systems under Increased Pressure and the Influence of Added Salts upon the Mutual Solubilities of Furfuraland Water

Cited by 8 publications

References 0 publications

Mechanistic and kinetic aspects of pentose dehydration towards furfural in aqueous media employing homogeneous catalysis

Mechanistic and kinetic aspects of pentose dehydration towards furfural in aqueous media employing homogeneous catalysis

Overview of Biorefineries based on Co-Production of Furfural, Existing Concepts and Novel Developments

Vapor-Liquid Equilibrium (VLE) Curve for Furfural Purification from Oil Palm Empty Fruit Bunch Hydrolysate Solution with the UNIQUAC Model

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