Modeling of a Pilot-Scale Fixed-Bed Reactor for Dehydration of 2,3-Butanediol to 1,3-Butadiene and Methyl Ethyl Ketone

Song, Daesung

doi:10.3390/catal8020072

Cited by 9 publications

(7 citation statements)

References 29 publications

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“…Thus far, there is only one other study wherein a fixed bed reactor has been used for dehydration of butane‐2,3‐diol to 1,3‐BD supported by a simulated one‐dimensional heterogenous reactor model [29] …”

Section: Resultsmentioning

confidence: 99%

Chemoenzymatic Buta‐1,3‐diene Synthesis from Syngas Using Biological Decarboxylative Claisen Condensation and Zeolite‐Based Dehydration

et al. 2020

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A method for producing buta‐1,3‐diene (1,3‐BD) by an amalgamation of chemical and biological approaches with syngas as the carbon source is proposed. Syngas is converted to the central intermediate, acetyl‐CoA, by microorganisms through a tetrahydrofolate metabolism pathway. Acetyl‐CoA is subsequently converted to malonyl‐CoA using a carbonyl donor in the presence of a carboxylase enzyme. A decarboxylative Claisen condensation of malonyl‐CoA and acetaldehyde ensues in the presence of acyltransferases to form 3‐hydroxybutyryl‐CoA, which is subsequently reduced by aldehyde reductase to give butane‐1,3‐diol (1,3‐BDO). An ensuing dehydration step converts 1,3‐BDO to 1,3‐BD in the presence of a chemical dehydrating reagent.

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Section: Resultsmentioning

confidence: 99%

Chemoenzymatic Buta‐1,3‐diene Synthesis from Syngas Using Biological Decarboxylative Claisen Condensation and Zeolite‐Based Dehydration

et al. 2020

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“…The models were validated with a lab-scale fixed bed reactor. In an effort to commercialize the technology, a pilot-scale reactor model was proposed [20]. However, the model validation lacked experimental data and model numerical analysis.…”

Section: Introductionmentioning

confidence: 99%

Dehydration of 2,3-Butanediol to 1,3-Butadiene and Methyl Ethyl Ketone: Modeling, Numerical Analysis and Validation Using Pilot-Scale Reactor Data

Song

Cho

et al. 2021

Catalysts

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This work presents the numerical analysis and validation of a fixed bed reactor model for 2,3-butanediol (2,3-BDO) dehydration. The 1D heterogeneous reactor model considering interfacial and intra-particle gradients, was simulated and numerical analysis of the model was conducted to understand the characteristics of the reactions in a catalyst along the reactor length. The model was also validated by comparing predicted performance data with pilot-scale plant data operated at 0.2 bar, 299–343 °C and 0.48–2.02 h−1 of weight hourly space velocity (WHSV). The model showed good agreement with the temperature profile, 2,3-BDO conversion and selectivity of target products. In addition, sensitivity analyses of the model were investigated by changing feed flow rate, feed composition, and inlet temperature. It was found that stable and efficient operation conditions are lower than 0.65 h−1 of WHSV and 330–340 °C of inlet temperature. Additionally, the reactor performance was not affected by 2,3-BDO feed concentration above 70%.

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“…Kim et al [6] analyzed the nature of the active centers of silica-supported alkali phosphate catalysts during the conversion of 2,3-BDO. Song [7] developed a pilot-scale reactor model for the dehydration of 2,3-BDO to form 1,3-BD and methyl ethyl ketone (MEK) while using reaction kinetics and a deactivation model of an amorphous calcium phosphate catalyst.…”

Section: Introductionmentioning

confidence: 99%

Improvement of 1,3-Butadiene Separation in 2,3-Butanediol Dehydration Using Extractive Distillation

et al. 2019

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This study was performed to investigate the extractive distillation for 1,3-butadiene (1,3-BD) purification as a part of the 2,3-butanediol (2,3-BDO) dehydration process. The separation of 1,3-BD from 1-butene produced as a 2,3-BDO dehydration by-product while using distillation is complicated due to the similar volatilities of the two compounds. Thus, an extractive distillation system is proposed for the effective recovery of 1,3-BD, and is compared with a conventional distillation system in terms of its performance and economic feasibility. A higher 1,3-BD recovery rate was achieved while using the proposed system and the relative profitabilities of both separation systems were analyzed according to the market price of 1,3-BD, which is a decisive variable for economic feasibility.

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Modeling of a Pilot-Scale Fixed-Bed Reactor for Dehydration of 2,3-Butanediol to 1,3-Butadiene and Methyl Ethyl Ketone

Cited by 9 publications

References 29 publications

Chemoenzymatic Buta‐1,3‐diene Synthesis from Syngas Using Biological Decarboxylative Claisen Condensation and Zeolite‐Based Dehydration

Chemoenzymatic Buta‐1,3‐diene Synthesis from Syngas Using Biological Decarboxylative Claisen Condensation and Zeolite‐Based Dehydration

Dehydration of 2,3-Butanediol to 1,3-Butadiene and Methyl Ethyl Ketone: Modeling, Numerical Analysis and Validation Using Pilot-Scale Reactor Data

Improvement of 1,3-Butadiene Separation in 2,3-Butanediol Dehydration Using Extractive Distillation

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