Performance of TPA Incorporated Cu-Zn based Catalysts in Dimethyl Ether and Methanol Synthesis from Syngas

Pekmezci Karaman, Birce
Oktar, Nuray
Sezgi, Naime Aslı
Gülşen, Doğu
Timur, Doğu


Performance of silicotungstic acid incorporated mesoporous catalyst in direct synthesis of dimethyl ether from syngas in the presence and absence of CO2
Çelik, Gökhan; Bayat, Aysegul; Ozbelge, H. Onder; Doğu, Timur (2013-12-01)
Dimethyl ether (DME), which is an excellent green diesel fuel alternate, is synthesized following a direct synthesis route from synthesis gas, by using a bi-functional catalyst mixture, which was composed of a silicotungstic acid incorporated mesoporous catalyst [TRC-75(L)] and a commercial Cu-Zn based catalyst. Higher DME selectivity values were obtained by using TRC-75(L), than commercial gamma-alumina at 50 bars. Presence of CO2 in the feed stream caused significant enhancement in DME selectivity. Result...
Performance of Acidic MCM-Like Aluminosilicate Catalysts in Pyrolysis of Polypropylene
Obali, Zeynep; Sezgi, Naime Aslı; Doğu, Timur (2009-01-01)
Mesoporous aluminosilicate catalysts having different Al/Si ratios were synthesized following a hydrothermal synthesis route and using different aluminum sources, such as aluminum nitrate and aluminum isopropoxide. These mesoporous materials have high surface areas, in the range of 520-1001 m(2)/g, and exhibit Type IV nitrogen adsorption isotherms. EDS and Al-27 MAS NMR results showed that aluminum was incorporated more effectively into the structure of the catalyst forming a tetrahedral framework when alum...
Performance of TPA loaded sba-15 catalyst in polypropylene degradation reaction
Ersoy Yalçın, Ulviy; Tutumlu, Zeynep.; Department of Chemical Engineering (2019)
Plastic materials are widely used due to their low cost and easy processing properties. With an increase in plastic usage, the amount of plastic wastes has also increased, and this situation causes environmental problems. Landfilling, incineration, and recycling are the methods used for the disposal of plastic wastes. Landfilling is not a convenient method as it causes soil pollution. Incineration is also not preferred due to its harmful effects on the environment caused by toxic gases. Recycling seems to b...
Performance of Mo2C as a catalyst for the water gas shift reaction a DFT investigation
Toffoli, Daniele; Demirtaş, Merve; Toffoli, Hande (null; 2015-06-22)
Performance of DOM and IDA with different angular discretization methods in 3-D absorbing-emitting-scattering media
Ozen, Guzide; Selçuk, Nevin (2013-03-01)
Predicted accuracy and computationally efficiency of Discrete Ordinates Method (DOM) and Improved Differential Approximation (IDA) were evaluated by applying both methods to cubical enclosure problems containing purely isotropically/linearly anisotropically scattering/absorbing-emitting-isotropically scattering medium and comparing their predictions with benchmark solutions available in the literature. Performances of DOM and IDA with S-8, S-10 and T-4 quadratures were assessed by comparing their prediction...
Citation Formats
B. Pekmezci Karaman, N. Oktar, N. A. Sezgi, D. Gülşen, and D. Timur, “Performance of TPA Incorporated Cu-Zn based Catalysts in Dimethyl Ether and Methanol Synthesis from Syngas,” 2017, Accessed: 00, 2021. [Online]. Available: