Dimethyl Ether from Synthesis Gas over Bifunctional Hybrid Catalysts

Çelik, Gökhan
Arinan, A
Varişli, Dilek
Doğu, Timur
4th National Catalysis Conference


Dimethyl ether from synthesis gas over bifunctional hybrid catalyst mixtures
Bayat, Ayşegül; Doğu, Timur; Department of Chemical Engineering (2013)
Due to increasing prices of crude oil based transportation fuels and ascending rate of global warming caused by high emission levels of conventional fuels with excessive use, alternative fuels have been considered as alternates. Dimethyl ether (DME) has received growing attention as an alternative clean fuel with low NOx formation and particulate emission, smokeless combustion and high cetane number. DME is mainly synthesized by two methods. In the first method, synthesis gas which is a mixture of carbon mo...
Dimethyl ether production from synthesis gas with bifunctional catalyst mixtures
Ermiş, Salih; Sezgi, Naime Aslı; Doğu, Timur; Department of Chemical Engineering (2022-8)
In recent times, studies on alternative clean fuels have increased due to the depletion of crude oil reserves in the world because of increasing energy demand and the worldwide existence of severe air pollution. Dimethyl ether (DME) is, therefore, being investigated as an excellent clean fuel alternative in compression-ignition engines. DME can be produced from synthesis gas by two different methods, direct and indirect. Recently, the direct method has gained importance in the production of DME from syngas....
Dimethyl ether synthesis over alumina based catalysts
Tokay, Kenan Cem; Doğu, Timur; DOĞU, GÜLŞEN (2012-03-01)
Dimethyl ether is an excellent clean burning transportation fuel alternate for compression ignition engines and also an excellent fuel for household use. In the present study, catalytic performances of different alumina based catalysts, namely alumina impregnated SBA-15, a mesoporous aluminosilicate, which was synthesized following a one-pot hydrothermal procedure, and a commercial alumina catalyst, were tested in dehydration of methanol to produce dimethyl ether. Alumina impregnated SBA-15 had high Bronste...
Dimethyl ether synthesis over novel mesoporous catalysts
Tokay, Kenan Cem; Doğu, Timur; Department of Chemical Engineering (2008)
Due to overconsumption, fossil reserves are rapidly being depleted and various sources predict that they will not last until the end of 21st century. Moreover, the increase in the rate of global warming and the polluting matter emitted by the vehicles consuming fossil fuels has increased the search for renewable and clean energy sources. Alcohols and ethers, which contain fewer pollutants and have better burning properties, are commonly thought among clean fuel alternatives. Among the potential clean energy...
Dimethyl Ether Synthesis over Novel Silicotungstic Acid Incorporated Nanostructured Catalysts
Ciftci, Aysegul; VARIŞLI, DİLEK; Doğu, Timur (2010-01-01)
Dimethyl ether (DME), which is an excellent green diesel-fuel alternate with excellent clean burning properties, is synthesized by dehydration of methanol over novel solid acid catalysts, which are synthesized following a direct hydrothermal route and using silicotungstic acid (STA) as the active compound. These mesoporous silicate structured catalysts have surface area values of 108-393 m(2)/g, depending upon their W/Si ratio. These catalysts showed very high methanol dehydration activity and also very hig...
Citation Formats
G. Çelik, A. Arinan, D. Varişli, and T. Doğu, “Dimethyl Ether from Synthesis Gas over Bifunctional Hybrid Catalysts,” presented at the 4th National Catalysis Conference, Kocaeli, Türkiye, 2012, Accessed: 00, 2023. [Online]. Available: https://hdl.handle.net/11511/101656.