DME from Methanol: Difference between revisions
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DME 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. | DME 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. | ||
DME 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 water-gas shift. | DME 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]. | ||
==Links== | ==Links== | ||
*article: [http://www.sciencedirect.com/science/article/pii/S0926860X9600275X Synthesis of dimethyl ether (DME) from methanol over solid-acid catalysts] | *article: [http://www.sciencedirect.com/science/article/pii/S0926860X9600275X Synthesis of dimethyl ether (DME) from methanol over solid-acid catalysts] | ||
*GEK Wiki: [http://wiki.gekgasifier.com/w/page/6123698/Dimethyl%20Ether%20%28DME%29 Dimethyl Ether (DME)] | *GEK Wiki: [http://wiki.gekgasifier.com/w/page/6123698/Dimethyl%20Ether%20%28DME%29 Dimethyl Ether (DME)] | ||
Revision as of 12:16, 7 June 2012
Dimethyl Ether (DME) is created by the dehydration of two methanol molecules methanol across an alumina catalyst.
2 CH3OH --> H2O + CH3OCH3
DME 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.
DME 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 water-gas shift.