Esterification of Butyl Cellosolve with Acetic Acid using Ion Exchange Resin in Fixed Bed Chromatographic Reactors

Deshmukh, Kalpana S; Gyani, Vivek Chandra; Mahajani, Sanjay M.

doi:10.2202/1542-6580.1793

Cited by 10 publications

(20 citation statements)

References 8 publications

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“…The catalyst was dried under vacuum at 80 °C for 6 h before it was used for the reaction. The physical properties of Amberlyst-15 are reported elsewhere …”

Section: Methodsmentioning

confidence: 99%

“…The physical properties of Amberlyst-15 are reported elsewhere. 25 Analysis. The samples were analyzed by gas chromatography (Thermo Fisher Scientific, India), which was equipped with a flame ionization detector (FID), thermo TG-5MS GC column (30 m × 0.32 mm × 0.25 μm), and thermal conductivity detector (TCD) with a Porapak Q column.…”

Section: ■ Introductionmentioning

confidence: 99%

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Feasibility of Solvent-Assisted Reactive Chromatography for the Synthesis of 2,2 Di-Methoxy Propane

Singh

Solanki

Yadav

et al. 2021

Ind. Eng. Chem. Res.

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Reactive chromatography is beneficial for a reaction where reaction equilibrium limits productivity, the product forms azeotropes with the reactants, and product separation is difficult due to nonideality in the phase equilibrium. 2,2 Di-methoxy propane (DMP) production from methanol and acetone is one such example where DMP equilibrium conversion is less than 15% at 15 °C reaction temperature in a conventional batch process. Furthermore, DMP forms azeotropes with acetone and methanol, and product separation is difficult due to nonideality in the phase equilibrium. In this work, synthesis of DMP from methanol and acetone using an acidic resin (Amberlyst-15) as an adsorbent/catalyst is investigated in a fixed-bed chromatographic reactor (FBCR). Addition of solvents such as hexane or cyclohexane into the reaction system in the FBCR favorably influences the affinity of acetone and DMP to the catalyst bed. The addition of equal molar amounts of hexane and acetone results in an increase in the affinity of acetone toward the resin and a decrease in the affinity of DMP toward the resin. Thus, with the aid of solvents, one can completely exhaust the acetone in the reaction regime and thus decrease the downstream processing cost drastically. Moreover, DMP yield increases threefold compared to the case when a solvent is not used. The parameters in the reaction kinetics, dispersion coefficient, and adsorption parameter were estimated by conducting independent experiments in the FBCR. The reaction kinetics and adsorption isotherm results are obtained from the FBCR implemented in the model, which predicts the results that are in good agreement with the experimental data.

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“…The catalyst was dried under vacuum at 80 °C for 6 h before it was used for the reaction. The physical properties of Amberlyst-15 are reported elsewhere …”

Section: Methodsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Feasibility of Solvent-Assisted Reactive Chromatography for the Synthesis of 2,2 Di-Methoxy Propane

Singh

Solanki

Yadav

et al. 2021

Ind. Eng. Chem. Res.

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show abstract

“…Deshmukh [7] studied esterification of butyl cellosolve with acetic acid using cation exchange resin Amberlyst -15 is using chromatographic reactor. The study determining the appropriate kinetic model for the reaction by performing experiments at different parameters.…”

Section: Case Studies Of Reactive Chromatographymentioning

confidence: 99%

Reactive Chromatography: A Review of Process Technology

Bhandare¹

2019

AJCHE

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Chemical Industries are primarily intended for conversion of raw materials into desired products. It develops new products for human lives. The challenge for chemical companies is to cut their costs. The chemical industries have high rate of technological change. Chemical industries use separate processes for converting raw material into product. Now day's the technology that is adopted is reactive separation. In this technology, the emphasis is given on combining separate units in one single unit. Advantageous of this technology is like reducing energy use, increase efficiency etc. Reactive separation uses different techniques like Reactive Chromatography, Reactive Distillation and Reactive Extraction, Reactive Membrane Separation, Reactive Crystallization. Out of this, Reactive chromatography is a attractive alternative since it employs differences in adsorption -desorption of chemical reagents on external solid phase, which can also act as catalyst. It is possible to obtain high purity of product from this process, also downstream purification is reduced or even eliminated. Fixed bed reactor or simulated bed reactors are mainly used for this purpose. Many researchers have studied reactive chromatography. This review is focused in development in reactive chromatography processes.

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“…Furthermore, the partial separation achieved in RC reduces the cost of downstream processing. In the past, RC has been successfully applied to several heterogeneous reactions like esterification, − etherification, acetalization, , isomerization, inversion etc. RC for the esterification reactions, using Amberlyst-15 as catalyst/adsorbent is well demonstrated in literature. − In this work, we evaluate applicability of RC for the production of n -propyl acetate using Amberlyst-15.…”

Section: Introductionmentioning

confidence: 99%

Feasibility of Reactive Chromatography for the Synthesis of n-Propyl Acetate

Reddy

Mahajani

2014

Ind. Eng. Chem. Res.

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The integration of chemical reaction and chromatographic separation in a single unit is known as reactive chromatography (RC). RC may be beneficial for processes that involve mixtures, which are otherwise difficult to separate by conventional distillation due to nonideality in the phase equilibrium, formation of azeotropes, etc. In this work, synthesis of n-propyl acetate from n-propanol and acetic acid using Amberlyst-15 as a catalyst/adsorbent in a fixed bed chromatographic reactor (FBCR) is investigated. The parameters in the rate model, adsorption isotherm, and dispersion model are estimated using experimental data. The reactive separation experiments are performed in a FBCR setup and the results are compared with model predictions. The breakthrough profiles of FBCR indicate that the synthesis of n-propyl acetate using RC may be advantageous compared to conventional reactors.

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Esterification of Butyl Cellosolve with Acetic Acid using Ion Exchange Resin in Fixed Bed Chromatographic Reactors

Cited by 10 publications

References 8 publications

Feasibility of Solvent-Assisted Reactive Chromatography for the Synthesis of 2,2 Di-Methoxy Propane

Feasibility of Solvent-Assisted Reactive Chromatography for the Synthesis of 2,2 Di-Methoxy Propane

Reactive Chromatography: A Review of Process Technology

Feasibility of Reactive Chromatography for the Synthesis of n-Propyl Acetate

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