Ignition of DME and DME/CH4 at High Pressure: Flow Reactor Experiments and Kinetic Modeling

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Abstract

The pyrolysis and oxidation of dimethyl ether (DME) and its mixtures with methane were investigated at high pressures (50 and 100 bar) and intermediate temperatures (450―900 K) in a laminar flow reactor. DME pyrolysis started at 825 K (at 50 bar). The onset of DME reaction was detected at 525―550 K (at 50 bar), independent of stoichiometry. The negative temperature coefficient (NTC) zone in the DME profile always included temperatures of 575―625 K. A profound promoting effect of DME addition on the ignition of methane was observed as the onse tof
reaction was shifted to lower temperatures by 50―150 K (at 100 bar).
Original languageEnglish
Publication date2015
Number of pages1
Publication statusPublished - 2015
Event7th European Combustion Meeting - Hotel Hilton, Budapest, Hungary
Duration: 30 Mar 20152 Apr 2015
http://www.ecm2015.hu/index.php/invitation/

Conference

Conference7th European Combustion Meeting
LocationHotel Hilton
CountryHungary
CityBudapest
Period30/03/201502/04/2015
Internet address

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