Issue |
MATEC Web Conf.
Volume 268, 2019
The 25th Regional Symposium on Chemical Engineering (RSCE 2018)
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Article Number | 07003 | |
Number of page(s) | 5 | |
Section | Reaction Engineering and Catalysis | |
DOI | https://doi.org/10.1051/matecconf/201926807003 | |
Published online | 20 February 2019 |
Synthesis of dimethyl ether using a fixed bed of dual catalyst for methanol synthesis and its dehydration
Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, 10 Ganesa, 40132, Indonesia
Corresponding author: herri@che.itb.ac.id
Experimental study on direct synthesis of DME (dimethyl ether) has been conducted using tubular reactor. The synthesis of DME was performed with two commercial catalysts, ie methanol synthesis catalyst (M151, Cu-based) and methanol dehydration catalyst (γAl2O3). A mixture of H2, CO, and N2 was used as a model for synthesis gas. Gas flow rate was set at 20 mL/min (5 bar and 240oC). The reaction held at: pressure of 5 bar and a temperature of 240°C. This experiment was conducted by arranging a series of two types of catalysts in a fixed bed reactor. The methanol synthesis catalyst was placed in the upstream to ensure the reaction of methanol formation, then proceed with dehydration of methanol to DME. The objective of this experiment was to find out the best dual catalyst composition to produce a high concentration of DME. The experiment has shown that the best combination of methanol catalyst to dehydration catalyst was a mixture of 20% methanol catalyst (ratio 1/4). CO conversion was 62% and the product ratio of DME/methanol was 40%.
© The Authors, published by EDP Sciences, 2019
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