| 2-butanone is a good organic solvent with low boiling point and it is also a good industrial material. So it is widely used in oil refining, dope and medicine etc. The dehydrogenation of 2-butanol is an important way to produce MEK. Usually the used catalysts are Zinc oxide and copper with promoter catalysts. But the reaction temperature is high on these Catalysts. So to preparation the promoted copper catalysts with low reaction temperature become a focus, now. The copper-based metal-oxide catalysts are widely used in chemical industrial, it is a kind of important catalysts, and it has some important academic and actual meaning to study these catalysts.In this paper, we prepared and investigated the promoted copper catalysts in detail. The catalysts were prepared by some methods such as impregnation, sol-gel, co-precipitate and ion-exchange. These catalysts were characterized by BET, XRD, EPR and TPR techniques. And used these catalysts in role reaction.we conculd the results show below:1. The results of investigating the composition of catalysts showed that the G-Si (made by ourself) was good catalyst support, and high conversion of 2-butanol and selectivity of 2-butanone were found over the catalysts which were made with these support. Copper metal is the active component for dehydrogenation of 2-butanol, the catalytic activity were effected by the amount of dispersed copper metal and its state. The best amount of supported copper was 11%. The promoter is an important factor for effecting on catalytic activity, selectivity and stable property. CuZrX catalyst showed high conversion of 2-butanol and selectivity of 2-butanone. The promoter ZrO2 can disperse and stabling the copper. The optimal molar ratio of Cu and Zr was 1:0.5. Na effects the catalytic activity, the results of catalytic activity on catalyst Cu-Zr-Na/G-Si show that Na effect the state of copper, The low content of Na can prepare higher dispersion and good stability copper catalyst, which show good catalytic activity. The addition of appropriate content of Na can neutralize acids sites, and favor for increasing the selectivity of 2-butanone.2. The preparation condition can affect the state of active site. The short impregnation time is a in favorable for producing sutable copper particle size. And this kind of copper oxide can make the selectivity increasing. The impregnation for 6h is favor for getting high dispersion CuO, and can make the selectivity of 2-butanone increasing. The sutable calcined temperature can preparation high dispersion CuO, and the favorable temperature is the range between 350-450℃. The reduction temperature is another important factor for effecting the particle size and dispersion of Cu0. The high reduction temperature can make particle size of Cu0 increase, and show low conversion of 2-butanol. The results of the reaction show that the catalyst which was reduced at 350℃is the best.The results of the reaction showed that the conversion of 2-butanol can reach 96.3% and the selectivity to 2-butanone can reach 97.1% over Cu-Zr-Na/G-Si catalyst which was prepared by co-impregnation under following reaction condition:280℃, atmosphere and 1500h-1(GHSV).3. We prepared and investigated the copper supported catalysts using sol-gel method. We also compared these results with that obtained from the impregnation method. The structure and the state of species over catalysts were studied by BET. XRD. EPR and TPR techniques. The results show that the isolated Cu2+and cluster Cu2+both exist on the catalyst, the ratio of them was effected by the content of copper and the calcined temperature. The cluster Cu2+ can be reduced to Cu0 during the dehydrogenation of 2-butanol. and Cu0 is the active site for this reaction. But for the isolated Cu2+, which can not be reduced during reaction. May was the acid site for by-product. But the catalysts prepared by impregnation method showed high conversion of 2-butanol. because the Cu2+clusters are dominant on the catalyst and it can be easily reduced to Cu0 during reaction, leading to higher conversion of 2-butanol.4. The ion-exchange methods was used to prepared high dispersion copper catalyst and were compared with the impregnation. This method can obtain the catalyst with the conversion of 2-butanol. But the CU2O exist in the catalyst, which is reduced hardly and can result in the condensation product to produce, leading to decrease of the selectivity to 2-butanone.5. We also explored nano-Cu and nano-ZnO as catalysts using in dehydrogenation of 2-butanol. The results show that nano-Cu and nano-ZnO have low catalytic activity, respectively, and the reaction activity decrease, because of increasing of the particle size of nano-Cu during reaction. While the Cu-ZnO catalyst mixed with the ultrasonic dispersion and rubbing method show high and stable catalytic activity of dehydrogenation of 2-butanol. The results show that there are some interaction between nano-Cu and nano-ZnO. The nano-ZnO plays the roles of the dispersion and the stabilization of the nano-Cu particles, increasing catalytic activity and avoiding carbon depositing on the catalyst during the reaction. But this interaction can lead to produce some by-produc This is a new exploring study.6. The molybdenum-based multiphasic oxide catalysts were prepared and tested in the selective oxidation of isobutylene to methacrolein reaction. The structure and crystal phase of catalysts were characterized by means of XRD, TPR and FTIR methods. The characterization results showed that the adding of bismuth into molybdenum catalysts could exist to enhance the catalytic performance. The adding of iron and cobalt could change the structure and crystal phase of catalysts and significantly improved the conversion of isobutene and selectivity of methacrolein. The results indicated that the synergetic or cooperation effects between multiphasic oxides and the some special phases may be the key role for increasing the catalytic performance. The conversion of isobutene and selectivity of methacrolein can be reached 99.9% and 88.7% over the best composed catalyst, respectively.
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