{"id":68470,"key":"Dimethylether","title":"Dimethylether","latest":{"id":1206780,"timestamp":"2025-11-27T20:50:28Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"[http://en.wikipedia.org/wiki/Dimethyl_ether Dimethyl ether] (DME) can be a diesel substitute. Only moderate modifications are needed to convert a diesel engine to burn DME. It is also used as a low-temperature solvent and extraction agent.\n\n== DME from Methanol ==\n\n[[File:1024px-Dme production dialg 090423.jpg|600px|thumb|A chart showing production methods of dimethyl ether.]]\n\nDimethyl Ether (DME) is created by the dehydration of two [[methanol]] molecules methanol across an alumina catalyst.\n\n'''2 CH3OH --> H2O + CH3OCH3'''\n\nDME can be created in two steps with the creation of [[methanol]] across ZnO and CuO, then its dehydration to DME in the presence of Al2O3.\n\nDME can also be synthesized in a single step which is typically a combination of both catalysts, ZnO/CuO and Al2O3. When the synthesis of [[methanol]] and [[methanol]] dehydration happen in the same step, an interesting third reaction interaction happens: the [http://en.wikipedia.org/wiki/Water_gas_shift water-gas shift].\n\n== External Links ==\n\n* TruckingInfo.com: [http://www.truckinginfo.com/article/story/2013/06/volvo-thinks-the-fuel-of-the-future-is-dme-and-it-s-almost-here.aspx \"Volvo Thinks the Fuel of the Future is DME – and It’s Almost Here\"]\n* International DME Association: [http://web.archive.org/web/20190804221419/https://www.aboutdme.org/index.asp?sid=48 \"About DME\"]\n* article: [http://www.sciencedirect.com/science/article/pii/S0926860X9600275X Synthesis of dimethyl ether (DME) from methanol over solid-acid catalysts]\n* GEK Wiki: [http://wiki.gekgasifier.com/w/page/6123698/Dimethyl%20Ether%20%28DME%29 Dimethyl Ether (DME)]\n\n{{Page data\n| license = CC-BY-SA-3.0\n}}\n\n[[Category:Energy]]\n[[Category:Biofuel]]\n[[Category:Materials]]"}