Liquid–Liquid Equilibrium of Water + 1-Butanol + Inorganic Salt Systems at 303.15, 313.15 and 323.15 K: Experiments and Correlation

Chawong, Kanungnit; Daengpradab, Boonpradab; Rattanaphanee, Panarat

doi:10.1007/s10953-017-0619-6

Cited by 8 publications

(7 citation statements)

References 18 publications

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“…Itaconic acid concentration and degree of extraction after purification was 40 g L −1 and 82.42% respectively. This result was consistent with the research by Kaur et al 11 They reported that after purification using n -butanol and acid solution at ratio of 1 : 3, the degree of extraction of itaconic acid produced from corn starch, maize flour, waste potatoes and glucose were 91.95, 42.05, 33.64, and 97.65, respectively.…”

Section: Resultssupporting

confidence: 92%

“…Itaconic acid concentration and degree of extraction aer purication was 40 g L À1 and 82.42% respectively. This result was consistent with the research by Kaur et al 11 They reported that aer purication using n-butanol and acid solution at ratio of 1 : 3, the degree of extraction of itaconic acid produced from corn starch, maize our, waste potatoes and glucose were 91.95, 42.05, 33.64, and 97.65, respectively. In this study, carboxylic acid containing compounds which are maleic acid, commercial and bio-synthesized itaconic acids from EPOFB were examined to be used as anti-crease agents for cotton fabrics.…”

Section: Itaconic Acid Production and Puricationsupporting

confidence: 92%

“…12 2.2.4 Separation of itaconic acid from fermented extract. Itaconic acid produced in the air-li fermenter tank was separated from the fermented solution by a solvent extraction method, according to the approach of Kaur et al 11 Fermented extract was ltered using lter paper (Whatman) with a pore size of 0.2 mm. Solid phase remaining on lter paper was washed with the de-ionized water in the same volume as fermented extract.…”

Section: Microorganisms and Culturementioning

confidence: 99%

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Bio-synthesis of itaconic acid as an anti-crease finish for cellulosic fiber fabric

et al. 2021

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Section: Resultssupporting

confidence: 92%

Section: Itaconic Acid Production and Puricationsupporting

confidence: 92%

Section: Microorganisms and Culturementioning

confidence: 99%

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Bio-synthesis of itaconic acid as an anti-crease finish for cellulosic fiber fabric

et al. 2021

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“…The equivalent ADS (3-component) process diagram is identical except for the distillation column sDISm-03 in the ADSm process (see the discussion below). In area A, both processes use a salting-out step to enhance the partition of organic and aqueous phases and thus remove the majority of water from the organic mixture before it is fed to separation area B (stream 002). , The separation objective in area A is to minimize the make-up salt requirement while generating recyclable water for upstream biomass-upgrading processes. The advantage of removing water at the beginning is to avoid the separation complexity introduced by azeotropes while reducing the additional decanters required in the downstream areas.…”

Section: Resultsmentioning

confidence: 99%

Separation and Purification of 2,5-Dimethylfuran: Process Design and Comparative Technoeconomic and Sustainability Evaluation of Simulated Moving Bed Adsorption and Conventional Distillation

Chiang

Bassas

Lively

et al. 2020

ACS Sustainable Chem. Eng.

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The furanic chemical 2,5-dimethylfuran (DMF) is an attractive biobased fuel and feedstock. High-yield biphasic processes for DMF synthesis from sugars employ higher alcohols such as n-butanol (BuOH) as solvents. This leads to a product containing <8 wt % DMF and byproducts in the BuOH solvent along with water. DMF process economics are dominated by separation costs for DMF purification and recycle of BuOH and water. We previously demonstrated efficient adsorptive separation of DMF with a stable ZIF-8 metal–organic framework adsorbent. Here, we present a detailed, comparative technoeconomic analysis and sustainability indicators of adsorptive versus conventional distillation separation processes to produce 98 wt % pure DMF at 100 metric tons/day. The novel adsorptive process integrates a simulated moving bed (SMB) unit with water removal and desorbent recovery systems, whereas the distillation process relies on multiple columns operating at different pressures to handle the strongly nonideal multicomponent thermodynamics. Rigorous process modeling is conducted by a combination of the Aspen Plus flowsheet simulation package and our in-house SMB modeling and optimization package, with realistic multicomponent adsorption and vapor–liquid equilibrium models parametrized by experimental data. This is followed by detailed calculations and sensitivity analysis of bare-module, utility, and material costs. The net present values (NPVs) of the process alternatives show a clear long-term economic advantage of the adsorptive process, mainly due to large reduction in utility costs. For a 100 MTD DMF plant, the ΔNPV for adsorptive separation is strongly positive (>$6M at a 10% discount rate and 15-year operation) and remains competitive over a large range of sensitivity factors. When translated to a large potential DMF biofuel market size similar to that of bioethanol, the SMB-based adsorptive process would save >$8B/yr. globally in separation costs. Furthermore, the novel adsorptive process has much better sustainability indicators, including 41% lower process energy intensity and 37% lower process CO2 emissions, as well as a number of qualitatively determined environmental and safety advantages.

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“…On the other hand, it has been shown that imidazolium-based ionic liquids and polyethylene glycols increase the water-solubility of BuOH and decrease the immiscibility region (soluting-in effect) of BuOH–water mixtures . Making an overview of the literature reveals that there is no systematic study regarding the salting effect of organic and inorganic ammonium salts on the clouding diagram of the BuOH–water system, and only a few scattered studies have been performed with NH 4 Cl. − Because of the tunability of hydrophilic/hydrophobic properties by changing their ammonium alkyl chain length and also their anion, quaternary ammonium salts are a good choice for investigating the soluting effects in aqueous BuOH solutions. Although interfacial properties and pseudo-ternary phase behavior of {water/[organic ammonium salt surfactant-BuOH (cosurfactant)]/ n -heptane} have been well studied for some alkyltrimethylammonium halides with long alkyl chain length, , the effect of these salts on the liquid–liquid phase behavior of BuOH–water has not been studied.…”

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Demixing Behavior of Aqueous 1-Butanol Solutions in the Presence of Various Organic and Inorganic Ammonium Salts: Effect of Temperature, Cation Alkyl Chain Length, and Anion Type of Salts on Salting Coefficients and Thermodynamic Functions

Keshvarinezhad,

Ebrahimi,

Sadeghi

2023

J. Chem. Eng. Data

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In this work, the effects of various organic and inorganic ammonium salts on the liquid−liquid demixing (clouding) behavior of aqueous 1-butanol (BuOH), as a thermoresponsive material, solutions were investigated in the temperature range of 283.15−353.15 K. The inorganic salts used are NH 4 Cl and NH 4 Br, and the organic ones are tetramethylammonium bromide (TMAB), tetraethylammonium bromide (TEAB), tetrapropylammonium bromide (TPAB), tetrabutylammonium bromide (TBAB), tetrabutylammonium chloride (TBAC), tetrabutylammonium hydrogen sulfate (TBAH), dodecyltrimethylammonium bromide (DTAB), and cetyltrimethylammonium bromide (CTAB). The inorganic ammonium halides reduced the water-solubility of BuOH and induced the salting-out effect. As the concentration of inorganic ammonium salts increased, the strength of the salting-out effect and the area of the biphasic region increased. However, all the investigated tetraalkylammonium salts had the salting-in effect on BuOH and increased its solubility in water. The extent of the monophasic region and also the intensity of the salting-in effect (co-solvency) enhanced with increasing the concentration of the tetraalkylammonium salts. The effects of the charge density of the salt anion as well as the alkyl chain length of the salt cation, on the immiscibility region of aqueous BuOH solutions, were studied. From the correlation of the measured cloud point data with Setschenow's relation, the salting effects occurring in the investigated systems were also quantified. Finally, the values of different thermodynamic functions of phase separation were determined, from which the driving force of clouding at different conditions was discussed.

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Liquid–Liquid Equilibrium of Water + 1-Butanol + Inorganic Salt Systems at 303.15, 313.15 and 323.15 K: Experiments and Correlation

Cited by 8 publications

References 18 publications

Bio-synthesis of itaconic acid as an anti-crease finish for cellulosic fiber fabric

Bio-synthesis of itaconic acid as an anti-crease finish for cellulosic fiber fabric

Separation and Purification of 2,5-Dimethylfuran: Process Design and Comparative Technoeconomic and Sustainability Evaluation of Simulated Moving Bed Adsorption and Conventional Distillation

Liquid–Liquid Demixing Behavior of Aqueous 1-Butanol Solutions in the Presence of Various Organic and Inorganic Ammonium Salts: Effect of Temperature, Cation Alkyl Chain Length, and Anion Type of Salts on Salting Coefficients and Thermodynamic Functions

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