شماره ركورد كنفرانس :
5048
عنوان مقاله :
Effect of addition of Al2O3 and ZrO2 to Cu-ZnO/Na-Mordenite catalyst utilized in hydrogenation of CO2 to DME
Author/Authors :
M.R ،Taheraslani Department of Chemical and PetroleumEngineering - Sharif University of Technology - Tehran, Iran , Mohammad ،Kazemeini Department of Chemical and PetroleumEngineering - Sharif University of Technology - Tehran, Iran , Mahmoud ،Aghaziarati Department of Chemistry and Chemical Engineering - Faculty of Materials - Malek Ashtar University of Technology - Tehran, Iran , Masoud ،Kazemian National Iranian Gas Company - Hafte Tire- Mofateh jonoubi - Tehran ,Iran
كليدواژه :
Dimethyl ether , hydrogenation , CO2 , ZrO2 and Al2O3
عنوان كنفرانس :
ششمين كنگره بين المللي مهندسي شيمي
چكيده لاتين :
A series of bifunctional catalysts Cu-ZnO-Al2O3- ZrO2/ Na-Mordenite with different
ZrO2 and Al2O3 contents were prepared and characterized by specific surface area (BET) and XRD
analyses. This catalytic system was evaluated for the development of the direct synthesis of the
DME from CO2 hydrogenation in three phase slurry reactor at T=250⁰C and P=20bar. Results
indicated that, both of ZrO2 and Al2O3 enhanced conversion, but Al2O3 profoundly increased
selectivity of the DME. However, when the total contents of Al2O3 and ZrO2 was increased above
16 wt%, the conversion and selectivity noticeably decreased which may be related to lowering of
the amount of active sites of copper on hybrid catalysts.
