Research on the Acidity of the Double-function Catalyst for DME Synthesis from Syngas |
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| Authors: | Ligang Wang Yue Qi Yingxu Wei Deren Fang Shuanghe Meng Zhongmin Liu |
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| Affiliation: | (1) Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China;(2) Graduate School of Chinese Academy of Sciences, Beijing, 100039, P. R. China |
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| Abstract: | Two kinds of HZSM-5 zeolite (SiO2/Al2O3 = 50,300) were introduced into the STD (syngas-to-DME) reaction and the double-function catalysts containing CuO/ZnO/Al2O3 and HZSM-5 were investigated by activity evaluation and NH3-TPD. It was found that the acidity of HZSM-5 played a critical role in the performance of STD catalyst, and an appropriate
acidic amount was required to obtain the best activity of STD catalyst; more and less acidic amount were both unfavorable
for DME yield. |
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| Keywords: | syngas dimethyl ether (DME) methanol SiO2/Al2O3 ratio dehydration |
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