Control of reactive distillation columns for amyl acetate production using dilute acetic acid

Hung, Wan-Jen; Lai, I-Kuan; Hung, Shih-Bo; Huang, Hsiao‐Ping; Lee, Ming‐Jer; Yu, Cheng‐Ching

doi:10.1080/02533839.2006.9671128

Cited by 5 publications

(4 citation statements)

References 15 publications

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“…n -Amyl acetate is widely used as a solvent for various organic compounds, including cellulose and its derivatives, as well as in some industrial processes, such as the production of varnishes, paints, adhesives. As an extracting agent, it is applied for the production of the penicillin. − In addition, the physicochemical study of ester synthesis reactions is a promising area of research in terms of obtaining them from natural sources, due to the fact that many types of vegetable oils and fusel oils are complex mixtures of various esters, alcohols, acids, and water (for example Sun et al have studied production of n -amyl alcohol esters from the coconut oil using the catalytic transesterification).…”

Section: Introductionmentioning

confidence: 99%

Chemical Equilibrium in the System Acetic acid–n-Amyl Alcohol–n-Amyl Acetate–Water at 323.15 K and Atmospheric Pressure: Experimental Data and Equilibrium Constant Estimation

Misikov,

Zolotovsky,

Samarov

et al. 2024

J. Chem. Eng. Data

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In this work, the results of the experimental study of the chemical equilibrium in both homogeneous and heterogeneous areas for the system acetic acid− n-amyl alcohol−n-amyl acetate−water at 323.15 K and atmospheric pressure are presented. The chemical equilibrium compositions and compositions of coexisting liquid phases were determined by gas chromatography. The obtained compositions were plotted in a composition tetrahedron for better clarity. The tie-lines of the heterogeneous chemical equilibrium were presented in transformed variables (the α-variables). The peculiarities of the surface of the chemical equilibrium are discussed. The obtained data are compared with the literature information at 318.15 K. The value of the thermodynamic constant of the chemical equilibrium was estimated using three approaches: an empirical equation, the UNIFAC model, and the quantum chemical calculation.

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Section: Introductionmentioning

confidence: 99%

Chemical Equilibrium in the System Acetic acid–n-Amyl Alcohol–n-Amyl Acetate–Water at 323.15 K and Atmospheric Pressure: Experimental Data and Equilibrium Constant Estimation

Misikov,

Zolotovsky,

Samarov

et al. 2024

J. Chem. Eng. Data

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“…Hung et al explored the dynamics and control of reactive distillation columns for amyl acetate production using dilute acetic acid. 11 Chiang et al compared two different configurations for the esterification of amyl acetate and evaluated the economic advantages of different designs. 12 The results clearly indicated the economic advantage of reactive distillation while maintaining acetate purity for the amyl acetate process.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Reactive distillation has been proven to be an economical and effective method in the esterification reaction. , Tang et al investigated acetic acid esterifications with five different alcohols using reactive distillation and provided a generalization for the design of RD processes for esterification reactions. Hung et al explored the dynamics and control of reactive distillation columns for amyl acetate production using dilute acetic acid . Chiang et al compared two different configurations for the esterification of amyl acetate and evaluated the economic advantages of different designs .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of n-Amyl Acetate in a Pilot Plant Catalytic Distillation Column with Seepage Catalytic Packing Internal

Xiao

et al. 2017

Ind. Eng. Chem. Res.

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The n-amyl acetate synthesis from the esterification reaction of acetic acid and n-amyl alcohol in a pilot plant catalytic distillation column with a decanter was evaluated. A novel catalytic packing, seepage catalytic packing internal (SCPI), is applied in this study. Catalytic distillation experiments using different feed molar ratios and feed modes at different column pressures were performed to validate an equilibrium stage model developed to investigate the influence of operation parameters on the performance of the catalytic distillation process. The results from experimental runs and simulations clearly indicate that it is important to the performance of catalytic distillation process to adjust the composition and temperature profiles along the reaction zone. The studies also showed that the integration of a reactive distillation column with a decanter is considered a potential candidate to produce amyl acetate. With proper operation parameters (operating pressure of 20−22 kPa and mixed feeding mode) and column configuration (16−18 theoretical stages of reaction zone), the product purity in the bottom stream could be increased to 99.3 wt % and less than 0.2 mg KOH/g acid value, meanwhile the conversion of amyl alcohol could reach more than 95%. The research achievements can be applied to facilitate industrial application of SCPI and used for prospective optimization studies.

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“…Tang et al 14 proposed a configuration that combines a reactive distillation column (RDC) and a decanter for n-butyl and n-amyl acetate processes. Hung et al 15 showed the design and control of an amyl acetate process using the RD configuration to investigate the effect of different concentrations in the acetic acid feed. Arpornwichanop et al 16 studied the direct utilization of dilute acetic acid to produce the n-butyl acetate through esterification in an RDC.…”

Section: Introductionmentioning

confidence: 99%

Design and Control of Reactive Distillation System for Esterification of Levulinic Acid and n-Butanol

Chung

Peng

Lee

et al. 2015

Ind. Eng. Chem. Res.

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This work presents the conceptual process design and the associated control strategies for the manufacture of nbutyl levulinate, which can be a suitable fuel additive, because of its high octane number, high oxygen content, and low water solubility. A reactive distillation column is used to avoid problems of separation and equilibrium reaction in the conventional esterification process. Both the thermodynamic properties and the kinetic data are compiled from open literatures. Sensitivities of several key design variables, including the feed ratio of raw materials and operating pressure of the reactive distillation column, to the economic manufacturing of n-butyl levulinate are investigated. The optimal steady-state design is found through total annual cost analysis, using iterative optimization procedure. Two feasible control structures are presented for this reactive distillation process. A series of simulations shows that both of the control strategies can reject throughput disturbances quite well, but can only achieve ordinary control performance for handling the feed composition disturbances.

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Control of reactive distillation columns for amyl acetate production using dilute acetic acid

Cited by 5 publications

References 15 publications

Chemical Equilibrium in the System Acetic acid–n-Amyl Alcohol–n-Amyl Acetate–Water at 323.15 K and Atmospheric Pressure: Experimental Data and Equilibrium Constant Estimation

Chemical Equilibrium in the System Acetic acid–n-Amyl Alcohol–n-Amyl Acetate–Water at 323.15 K and Atmospheric Pressure: Experimental Data and Equilibrium Constant Estimation

Synthesis of n-Amyl Acetate in a Pilot Plant Catalytic Distillation Column with Seepage Catalytic Packing Internal

Design and Control of Reactive Distillation System for Esterification of Levulinic Acid and n-Butanol

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