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Optimized design and techno-economic analysis of novel DME production processes

Semmel, Malte ORCID iD icon 1; Kerschbaum, Maximilian; Steinbach, Benedikt; Sauer, Jörg ORCID iD icon 2; Salem, Ouda
1 Karlsruher Institut für Technologie (KIT)
2 Institut für Katalyseforschung und -technologie (IKFT), Karlsruher Institut für Technologie (KIT)

Abstract:

The shift from gas to liquid phase DME synthesis enables an intensified process concept towards efficient large scale DME production. In this work, four process concepts based on liquid phase DME synthesis were proposed and optimized. A comprehensive economic model was applied with the objective of minimizing the total production cost. All concepts were evaluated applying our previously validated reaction kinetics for commercial ion exchange resin selected catalysts. Furthermore, every process concept was studied with a pure MeOH feed and water-rich (crude) MeOH feedstock. The conventional gas-phase DME production process was simulated and evaluated using the same technical and economic parameters to serve as a benchmark. Using a chlorinated high temperature stable IER catalyst led to significant cost reduction in all the considered concepts. This was due to the higher reaction rate enabled by the higher operating temperature of this catalyst. In the integrated process concept with H2 and CO2 as sustainable feedstocks, it was shown that the reactive distillation process shows a 27% lower production cost, when the crude methanol is directly fed to the DME process instead of being purified in a dedicated crude methanol distillation column. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000163829
Veröffentlicht am 03.11.2023
Originalveröffentlichung
DOI: 10.1039/d3re00333g
Scopus
Zitationen: 1
Web of Science
Zitationen: 2
Dimensions
Zitationen: 3
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Katalyseforschung und -technologie (IKFT)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 24.10.2023
Sprache Englisch
Identifikator ISSN: 2058-9883
KITopen-ID: 1000163829
HGF-Programm 38.03.02 (POF IV, LK 01) Power-based Fuels and Chemicals
Erschienen in Reaction Chemistry & Engineering
Verlag Royal Society of Chemistry (RSC)
Band 8
Heft 11
Seiten 2826–2840
Nachgewiesen in Dimensions
Web of Science
Scopus
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