caa a22 4500 606173579 CHVBK 20210128100733.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s11244-015-0450-5 doi (NATIONALLICENCE)springer-10.1007/s11244-015-0450-5 Tamm Stefanie Chemical Engineering, Department of Chemistry and Chemical Engineering, Competence Centre for Catalysis, Chalmers University of Technology, 412 96, Göteborg, Sweden aut Coking During DME Synthesis: A Calorimeter Study [Elektronische Daten] [Stefanie Tamm] Dimethyl ether (DME) is a promising alternative fuel for transportation and cooking. During the synthesis of DME, formation of coke is the primary cause for deactivation. With micro calorimeter experiments combined with mass spectrometry measurements we show here, that DME adsorbs on two different sites on H-ZSM-5 with heats of adsorption of about 120 and 95kJ/mol. Exposure to DME at 230°C for 3h turns the samples brown due to coking and decreases the amount of adsorbed DME, but does not change the heat of adsorption. In contrast, no clear indication of coke formation was observed after the same treatment over γ-Al2O3. Springer Science+Business Media New York, 2015 DME synthesis nationallicence Heat of adsorption nationallicence Methanol nationallicence Zeolite nationallicence Topics in Catalysis Springer US; http://www.springer-ny.com 58/14-17(2015-10-01), 833-842 1022-5528 58:14-17<833 2015 58 11244 https://doi.org/10.1007/s11244-015-0450-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11244-015-0450-5 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Tamm Stefanie Chemical Engineering, Department of Chemistry and Chemical Engineering, Competence Centre for Catalysis, Chalmers University of Technology, 412 96, Göteborg, Sweden aut NATIONALLICENCE 773 0- Topics in Catalysis Springer US; http://www.springer-ny.com 58/14-17(2015-10-01), 833-842 1022-5528 58:14-17<833 2015 58 11244