Dehydration of methanol to dimethyl ether (DME): Performance of three types of catalyst at atmospheric pressure

Ardy, Aisyah; Pohan, Rahmad Dennie Agustin; Rizkiana, Jenny; Laniwati, Melia; Susanto, Herri

doi:10.1063/1.5095042

Cited by 8 publications

(4 citation statements)

References 9 publications

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“…It became clear that dimethyl ether (DME) is important due to its multi-use in industry, it represents a fuel alternative with no toxic and no corrosive emissions, raw material in organic synthesis [1] [2] and as a fuel cells hydrogen source by the partial oxidation or reformation of steam [3] are the most important uses of DME, more details about DME utilizing has been mentioned by many researchers [2] [4] [5].…”

Section: Introductionmentioning

confidence: 99%

Kinetic Study of Methanol Dehydration to Dimethyl Ether in Catalytic Packed Bed Reactor over Resin

Hadi¹,

Hadi²

2022

MSCE

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Dimethyl ether (DME) is considered as a significant fuel alternative with a critical manufacturing process. Only a few authors have presented the kinetic analysis of attractive and alternative catalysts to Al 2 O 3 and/or zeolite in DME production, despite the fact that there is a large library of kinetic studies for these commercial catalysts. The purpose of this research was to contribute to this direction by conducting a catalytic test to determine kinetic parameters for methanol dehydration over sulfonic acid catalysts (resin). However, due to the relevance of the mathematical description of this process in the industry was also studied, a study of kinetics parameters and mathematical modeling of methanol dehydration in an atmospheric gas phase in a fixed bed reactor with a temperature range (90˚C -120˚C) was examined. The Langmuir-Hinshelwood (L-H) model provides the best fit to experimental data, with an excellent R 2 = 0.9997, and the experimental results were compared to those predicted by these models with very small deviations. The kinetic parameters were found to be in good agreement with the Arrhenius equation, with acceptable straight-line graphs. The activation energy E was computed and found to be 27.66 kJ/mole, with an average variation of 0.32 percent between the predicted and calculated results. Simple mathematical continuum models (plug flow reactor PFR) showed an acceptable agreement with the experimental data.

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Section: Introductionmentioning

confidence: 99%

Kinetic Study of Methanol Dehydration to Dimethyl Ether in Catalytic Packed Bed Reactor over Resin

Hadi¹,

Hadi²

2022

MSCE

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“…The reaction of DME synthesis is mainly dehydration of methanol that is exothermic and reversible. In the current work, the rate expression has been selected from [14].…”

Section: Metanol Dehydrationmentioning

confidence: 99%

Improving Net Energy Efficiency of Dimethyl Ether Production Process by Methanol Dehydration

Permatasari,

Syabila,

Dewi

et al. 2024

J. Chem. Eng. Res. Prog.

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Dimethyl ether (DME) is a source of fuel that produces clean energy for the future. Methanol can be used as a raw material for the manufacture of DME as a natural gas that is treated for synthesis. This paper evaluates how to improve net energy efficiency in DME production and how to review the net energy efficiency calculations in DME production. Methods used for production of DME are methanol dehydration, thermodynamics examination, also improving the net energy efficiency of DME with the addition of the heat exchanger (E-100), the addition of a heater (E-104) before entering a column (T-102), and moved the mixer position before the heater (E-100). By modifying the addition of a heat exchanger (E-100), heater (E-104), and changing the position of the mixer in DME production, it has been proven that it can reduce energy requirements in the dimethyl ether synthesis process from methanol and increase net energy efficiency by up to 98.83%. The results of the case study indicate that the addition heat exchanger (E-100) able to reduce the heater load after the creation process and remove the cooler (E-101) that existed before creation, then the addition of the heater (E-104) serves to reduce the load of Qcond2 and Qreb2 on columns (T-102), also the position of the mixer for the methanol recycling flow is moved before the heater (E-100) is intended to remove the heaters (E-103). Copyright © 2024 by Authors, Published by Universitas Diponegoro and BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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“…Based on Ardy et al [7] and Liu et al [22], as the methanol dehydration is a reaction with slightly exothermic, an increase in reaction temperature would decrease in the conversion of methanol. Measured conversion of methanol decreased with an increase in reaction temperature.…”

Section: Thermodynamics and Operating Conditions Considerationmentioning

confidence: 99%

Reducing Energy Consumption in the Synthesis of Dimethyl Ether (DME) from Methanol Dehydration by Modifying Heat Transfer Unit Using Aspen HYSYS

Faisal,

Puspaningrum,

Novalia

et al. 2024

J. Chem. Eng. Res. Prog.

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In the pursuit of a transport sector free from fossil fuels, the incorporation of Dimethyl ether (DME) emerges as a commendable ecological substitute. The DME is a synthetically produced serves as a viable alternative to conventional fuels such as diesel and liquified petroleum gas (LPG). The Dimethyl Ether (DME) production is carried out by catalytic dehydration of methanol over an acidic zeolite-based catalyst. The technological process for the DME synthesis was simulated using Aspen HYSYS based on the combined operating parameters of the reaction dynamic model for the methanol dehydration reaction. This paper attempts to evaluate a modification in dehydration of methanol process to reducing energy consumption by modifying heat transfer unit. The heater and cooler heat transfer units were converted into heat exchangers (HE) by utilizing the output of the process that can be used for other processes so that energy consumption is reduced. The temperature of reaction and the heat transfer unit are modified to reduce energy consumption from 11.850 MMBtu/h to 7.6291 MMBtu/h by changing one heater and one cooler with two heat exchangers. Copyright © 2024 by Authors, Published by Universitas Diponegoro and BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Dehydration of methanol to dimethyl ether (DME): Performance of three types of catalyst at atmospheric pressure

Cited by 8 publications

References 9 publications

Kinetic Study of Methanol Dehydration to Dimethyl Ether in Catalytic Packed Bed Reactor over Resin

Kinetic Study of Methanol Dehydration to Dimethyl Ether in Catalytic Packed Bed Reactor over Resin

Improving Net Energy Efficiency of Dimethyl Ether Production Process by Methanol Dehydration

Reducing Energy Consumption in the Synthesis of Dimethyl Ether (DME) from Methanol Dehydration by Modifying Heat Transfer Unit Using Aspen HYSYS

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