Catalytic functionalities of Pd catalysts supported on spinel MgAl2O4 for coupling of ethylbenzene dehydrogenation with nitrobenzene hydrogenation
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- 作者：Yengaldas Harikrishna ; Vanama Pavan Kumar ; Kuna Ramu…
- 关键词：MgAl2O4 spinel ; Dehydrogenation ; Hydrogenation ; Ethylbenzene and nitrobenzene
- 刊名：Applied Petrochemical Research
- 出版年：2015
- 出版时间：March 2015
- 年：2015
- 卷：5
- 期：1
- 页码：71-80
- 全文大小：741 KB
- 参考文献：1. Brydson, JA (1999) Plastics materials. Butterworth-Heinemann, Oxford
2. Lee, H (1973) Iron oxide catalysts for dehydrogenation of ethylbenzene in the presence of steam. Catal Rev 8: pp. 285-305 g/10.1080/01614947408071864" target="_blank" title="It opens in new window">CrossRef
3. Tiscareno-Lechuga, F, Hill, CG, Anderson, MA (1993) Experimental studies of the non-oxidative dehydrogenation of ethylbenzene using a membrane reactor. Appl Catal A Gen 96: pp. 33-51 g/10.1016/0926-860X(93)80005-B" target="_blank" title="It opens in new window">CrossRef
4. Abashar, MEE (2004) Coupling of ethylbenzene dehydrogenation and benzene hydrogenation reactions in fixed bed catalytic reactors. Chem Eng Proc 43: pp. 1195-1202 g/10.1016/j.cep.2003.11.004" target="_blank" title="It opens in new window">CrossRef
5. Abdalla, BK, Elnashaie, SSEH (1993) A membrane reactor for the production of styrene from ethylbenzene. J Membr Sci 85: pp. 229-239 g/10.1016/0376-7388(93)85277-4" target="_blank" title="It opens in new window">CrossRef
6. Zhao, TJ, Sun, WZ, Gu, XY, Ronning, M, Chen, D, Dai, YC, Yuan, WK, Holmen, A (2007) Rational design of the carbon nanofiber catalysts for oxidative dehydrogenation of ethylbenzene. Appl Catal A Gen 323: pp. 135-146 g/10.1016/j.apcata.2007.02.008" target="_blank" title="It opens in new window">CrossRef
7. Gaspar, JN, Vadekar, M, Pasternak, IS, Cohen, AD (1975) SO2?promoted oxidative dehydrogenation of ethylbenzene. Can J Chem Eng 53: pp. 74-78 g/10.1002/cjce.5450530112" target="_blank" title="It opens in new window">CrossRef
8. Burri DR, Choi KM, Han DS, Sujandi, Jiang N, Burri A, Park SE (2008) Oxidative dehydrogenation of ethyl benzene to styrene with CO2 over SnO2–ZrO2 mixed oxide nanocomposite catalysts. Catal Today 131:173-78
9. Towler, G, Lynn, S (1994) Novel applications of reaction: use of carbon dioxide to shift the equilibrium of dehydrogenation reactions. Chem Eng Sci 49: pp. 2585-2591 g/10.1016/0009-2509(94)E0074-Z" target="_blank" title="It opens in new window">CrossRef
10. Bautista, FM, Campelo, JM, Garcia, A, Luna, D, Marinas, JM, Quiros, RA, Romero, AA (1999) Gas-phase oxydehydrogenation of ethylbenzene with nitrobenzene by hydrogen transfer catalyzed reaction to produce styrene and aniline. Catal Lett 60: pp. 229-235 g/10.1023/A:1019019426767" target="_blank" title="It opens in new window">CrossRef
11. Sun, A, Qin, Z, Wang, J (2002) Reaction coupling of ethylbenzene dehydrogenation with nitrobenzene hydrogenation. Catal Lett 79: pp. 33-37 g/10.1023/A:1015395906114" target="_blank" title="It opens in new window">CrossRef
12. Abo-Ghander, NS, Grace, JR, Elnashaie, SSEH, Lim, CJ (2008) Modeling of a novel membrane reactor to Integrate dehydrogenation of ethylbenzene to styrene with hydrogenation of nitrobenzene to aniline. Chem Eng Sci 63: pp. 1817-1826 g/10.1016/j.ces.2007.12.007" target="_blank" title="It opens in new window">CrossRef
13. Qin, Z, Liu, J, Sun, A, Wang, J (2003) Reaction coupling in the new processes for producing styrene from ethylbenzene. Ind Eng Chem Res 42: pp. 1329-1333 g/10.1021/ie020762y" target="_blank" title="It opens in new window">CrossRef
14. Chenier, PJ (2002) Survey of industrial chemistry. Kluwer Academic/Plenum, New York g/10.1007/978-1-4615-0603-4" target="_blank" title="It opens in new window">CrossRef
15. Bartholomew CH, Farrato RJ (2006) Fundamentals of industrial catalytic process, 2 edn. Wiley, New York
16. Guo, XF, Jang, DY, Jang, HG, Kim, GJ (2012) Hydrogenation and dehydrogenation reactions catalyzed by CNTs supported palladium catalysts. Catal Today 186: pp. 109-114 g/10.1016/j.cattod.2011.11.001" target="_blank" title="It opens in new window">CrossRef
17. Skotak, M, Lomot, D, Karpinski, Z (2002) Catalytic conversion of C6-alkanes over Pd/Al2O3 catalysts the effect of support acidity. Appl Catal A Gen 229: pp. 103-115 g/10.1016/S0926-860X(02)00019-4" target="_blank" title="It opens in new window">CrossRef
18. Yuranov, I, Moeckli, P, Suvorona, E, Buffat, P, Minsker, L, Reuken, A (2003) Pd/SiO2 catalysts: synthesis of Pd nanoparticles with the controlled size in mesoporous silicas. J Mol Catal A Chem 192: pp. 239-251 gineering; Nanochemistry; Energy Technology; Nanotechnology and Microengineering; - 出版者：Springer Berlin Heidelberg
- ISSN：2190-5533
文摘
Direct coupling of oxidative dehydrogenation of ethylbenzene with nitrobenzene hydrogenation in a fixed-bed catalytic reactor at atmospheric pressure in the temperature range of 673-23?K over MgAl2O4-supported palladium catalysts has been investigated. Simple dehydrogenation of ethylbenzene (DHEB) is reversible, endothermic and thermodynamically limited. The continuous removal of co-produced hydrogen in DHEB for in situ hydrogenation of nitrobenzene over Pd/MgAl2O4 catalyst improves the performance of the DHEB process. A series of Pd (0.25-.0 wt%) catalysts supported on MgAl2O4 was prepared. The catalyst samples were characterized by X-ray diffraction (XRD), H2-Temperature-programmed reduction (TPR), X-ray photoelectron spectroscopy (XPS), Transmission electron microscopy (TEM), CO chemisorption, CO2–Temperature-programmed desorption and BET surface area. Dispersion and particle size of Pd were obtained by CO chemisorption. The reaction profile shows that palladium (0.5?wt%) is an optimum loading to get maximum conversion of ethylbenzene (51.8?%) and nitrobenzene (47.3?%) to give 91.4 and 100?% selectivity of styrene and aniline, respectively.