پیوندهای مفید
اخبار و اعلانات
آمار
| تعداد نشریات | 158 |
| تعداد شمارهها | 6,225 |
| تعداد مقالات | 67,685 |
| تعداد مشاهده مقاله | 114,986,099 |
| تعداد دریافت فایل اصل مقاله | 89,657,530 |
Vanadium Oxide Supported on Al-modified Titania Nanotubes for Oxidative Dehydrogenation of Propane | ||
| Journal of Chemical and Petroleum Engineering | ||
| مقاله 4، دوره 51، شماره 2، اسفند 2017، صفحه 113-121 اصل مقاله (696.04 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/jchpe.2017.235812.1203 | ||
| نویسندگان | ||
| Mojtaba Saei Moghaddam؛ Jafar Towfighi* | ||
| Department of Chemical Engineering, Tarbiat Modares University, Tehran, Iran | ||
| چکیده | ||
| In this study, characterization of vanadia supported on Al-modified titania nanotubes (TiNTs) synthesized by the alkaline hydrothermal treatment of TiO2 powders has been reported. A promising catalyst for oxidative dehydrogenation (ODH) of propane was prepared via the incipient wetness impregnation method. The morphology and crystalline structure of TiNTs were characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). TiNTs provided large specific surface areas of about 408m2/gr and 1.603cm3/gr for pore volume. Rapid sintering and anatase to rutile phase transformation occurred in presence of vanadia in the catalysts at high calcination temperature. Al-promoted TiNTs considerably inhibited the loss of surface area so that a superior catalytic activity was observed in the ODH of propane along with amelioration of structural properties. The results showed 49.7% increase in propane conversion and 22.6% increase in propylene production at 500οC for Al-modified catalyst. | ||
| کلیدواژهها | ||
| Aluminium؛ Oxidative dehydrogenation؛ Propylene؛ Titania nanotubes؛ Vanadium oxide catalysts | ||
| مراجع | ||
|
[1] Putra, M.D., Al-Zahrani, S.M. and Abasaeed, A.E. (2011). "Oxidative dehydrogenation of propane to propylene over Al2O3-supported Sr–V–Mo catalysts." Catalysis Communications, Vol. 14, pp. 107-110. [2] Sun, X., Ding, Y., Zhang, B., Huang, R. and Su, D.S. (2015). "New insights into the oxidative dehydrogenation of propane on borate-modified nanodiamond." Chemical Communications, Vol. 51, pp. 9145-8. [3] Putra, M.D., Al-Zahrani, S.M. and Abasaeed, A.E. (2012). "Oxidehydrogenation of propane to propylene over Sr–V–Mo catalysts: Effects of reaction temperature and space time." Journal of Industrial and Engineering Chemistry, Vol. 18, pp. 1153-1156. [4] Siahvashi, A., Chesterfield, D. and Adesina, A.A. (2013). "Nonoxidative and Oxidative Propane Dehydrogenation over Bimetallic Mo–Ni/Al2O3 Catalyst." Industrial & Engineering Chemistry Research, Vol. 52, pp. 4017-4026. [5] Ma, F., Chen, S., Zhou, H., Li, Y. and Lu, W. (2014). "Revealing the ameliorating effect of chromium oxide on a carbon nanotube catalyst in propane oxidative dehydrogenation." RSC Advance, Vol. 4, pp. 40776-40781. [6] Chen, S., Ma, F., Xu, A., Wang, L., Chen, F. and Lu, W. (2014). "Study on the structure, acidic properties of V–Zr nanocrystal catalysts in oxidative dehydrogenation of propane." Applied Surface Science, Vol. 289, pp. 316-325. [7] Löfberg, A., Giornelli, T., Paul S. and Bordes-Richard, E. (2011). "Catalytic coatings for structured supports and reactors: VOx/TiO2 catalyst coated on stainless steel in the oxidative dehydrogenation of propane." Applied Catalysis A: General, Vol. 391, pp. 43-51. [8] Fattahi, M., Kazemeini, M., Khorasheh, F. and Rashidi, A.M. (2013). "Vanadium pentoxide catalyst over carbon-based nanomaterials for the oxidative dehydrogenation of propane." Industrial & Engineering Chemistry Research, Vol. 52, pp. 16128-16141. [9] Rozanska, X., Fortrie, R. and Sauer, J. (2014). "Size-dependent catalytic activity of supported vanadium oxide species: oxidative dehydrogenation of propane." Journal of the American Chemical Society, Vol. 136, pp. 7751-7761. [10] Banares, M. and Khatib, S. (2004). "Structure-activity relationships in alumina-supported molybdena-vanadia catalysts for propane oxidative dehydrogenation." Catalysis Today, Vol. 96, pp. 251-257. [11] Zhang, J., Wang, Y., Jin, Z., Wu, Z. and Zhang, Z. (2008). "Visible-light photocatalytic behavior of two different N-doped TiO2." Applied Surface Science, Vol. 254, pp. 4462-4466. [12] Oliva, C., Cappelli, S., Rossetti, I., Ballarini, N., Cavani, F. and Forni, L. (2009). "EPR enlightening some aspects of propane ODH over VOx–SiO2 and VOx–Al2O3." Chemical Engineering Journa l,Vol. 154, pp. 131-136. [13] Chakraborty, S., Nayak, S.C. and Deo, G. (2015). "TiO2/SiO2 supported vanadia catalysts for the ODH of propane." Catalysis Today, Vol. 254, pp. 62-71. [14] Wang, C., Chen, J. G., Xing, T., Liu, Z. T., Liu, Z.W. and Jiang, J. (2015). "Vanadium Oxide Supported on Titanosilicates for the Oxidative Dehydrogenation of n-Butane." Industrial & Engineering Chemistry Research,Vol. 54, pp. 3602-3610. [15] Reddy, B.M., Lakshmanan, P., Loridant, S., Yamada, Y., Kobayashi, T. and López-Cartes, C. (2006). "Structural Characterization and Oxidative Dehydrogenation Activity of V2O5/Ce x Zr1-x O2/SiO2 Catalysts." The Journal of Physical Chemistry B, Vol. 110, pp. 9140-9147. [16] Cortés Corberán., V. (2009). "Nanostructured Oxide Catalysts for Oxidative Activation of Alkanes." Topics in Catalysis, Vol. 52, pp. 962-969. [17] Shee, D. and Deo, G. (2009). "Adsorption and ODH reaction of alkane on sol–gel synthesized TiO2–WO3 supported vanadium oxide catalysts: In situ DRIFT and structure–reactivity study." Journal of Molecular Catalysis A: Chemical, Vol. 308, pp. 46-55. [18] Lei, Y., Mehmood, F., Lee, S., Greeley, J., Lee, B. and Seifert S.(2010). "Increased silver activity for direct propylene epoxidation via subnanometer size effects." Science,Vol. 328, pp. 224-8. [19] Kraemer, S., Rondinone, A.J., Tsai, Y.T., Schwartz, V.S., Overbury, H. and Idrobo, J.C. (2016). "Oxidative dehydrogenation of isobutane over vanadia catalysts supported by titania nanoshapes." Catalysis Today, Vol. 263, pp. 84-90. [20] Rischard, J., Antinori, C., Maier, L. and Deutschmann, O. (2016). "Oxidative dehydrogenation of n-butane to butadiene with Mo-V-MgO catalysts in a two-zone fluidized bed reactor." Applied Catalysis A: General, Vol. 511, pp. 23-30. [21] Reddy, B.M., Rao, K.N., Reddy, G.K. and Bharali, P. (2006). "Characterization and catalytic activity of V2O5/Al2O3-TiO2 for selective oxidation of 4-methylanisole." Journal of Molecular Catalysis A: Chemical,Vol. 253, pp. 44-51. [22] De León, M.A., De Los Santos, C., Latrónica, L.A., Cesio, M., Volzone, C. and Castiglioni , J. (2014). "High catalytic activity at low temperature in oxidative dehydrogenation of propane with Cr–Al pillared clay." Chemical Engineering Journal, Vol. 241, pp. 336-343. [23] Wang, W., Zhang, J., Huang, H., Wu, Z. and Zhang, Z. (2008). "Surface-modification and characterization of H-titanate nanotube." Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 317, pp. 270-276. [24] Fen, L.B., Han, T.K., Nee, N.M., Ang, B.C. and Johan, M.R. (2011). "Physico-chemical properties of titania nanotubes synthesized via hydrothermal and annealing treatment." Applied Surface Science, Vol. 258, pp. 431-435. [25] Ou, H. and Lo, S. (2007). "Review of titania nanotubes synthesized via the hydrothermal treatment: Fabrication, modification, and application." Separation and Purification Technology, Vol. 58, pp. 179-191. [26] Liu, J., Fu, Y., Sun, Q. and Shen, J. (2008). "TiO2 nanotubes supported V2O5 for the selective oxidation of methanol to dimethoxymethane." Microporous and Mesoporous Material s,Vol. 116, pp. 614-621. [27] Kootenaei, A.H.S., Towfighi, J., Khodadadi, J.A. and Mortazavi, Y. (2014). "Stability and catalytic performance of vanadia supported on nanostructured titania catalyst in oxidative dehydrogenation of propane." Applied Surface Science, Vol. 298, pp. 26-35. [28] Concepción, P., Nieto, J.L. and Pérez-Pariente. J. (1994). "Oxidative dehydrogenation of ethane on a magnesium-vanadium aluminophosphate (MgVAPO-5) catalyst." Catalysis letters, Vol. 28, pp. 9-15. [29] Kim, S.J., Yun, Y.U., Oh, H.J., Hong, S.H., Roberts, C.A. and Routray, K. (2009). "Characterization of hydrothermally prepared titanate nanotube powders by ambient and in situ Raman spectroscopy." The Journal of Physical Chemistry Letters, Vol. 1, pp. 130-135. [30] Shi, L., Cao, L., Liu, W., Su, G., Gao, R. and Zhao, Y. (2014). "A study on partially protonated titanate nanotubes: Enhanced thermal stability and improved photocatalytic activity." Ceramics International, Vol. 40, pp. 4717-4723. [31] Gannoun, C., Turki, A., Kochkar, H., Delaigle, R., Eloy, P. and Ghorbel, A. (2014). "Elaboration and characterization of sulfated and unsulfated V2O5/TiO2 nanotubes catalysts for chlorobenzene total oxidation." Applied Catalysis B: Environmental,Vol. 147, pp. 58-64. [32] Cortés-Jácome, M.A., Ferrat-Torres, G.L., Ortiz, F.F., Angeles-Chávez, C., López-Salinas, E. and Escobar J. (2007). "In situ thermo-Raman study of titanium oxide nanotubes." Catalysis Today,Vol. 126, pp. 248-255. [33] Ma, R., Fukuda, K., Sasaki, T., Osada, M. and Bando, Y. (2005). "Structural features of titanate nanotubes/nanobelts revealed by Raman, X-ray absorption fine structure and electron diffraction characterizations." The Journal of Physical Chemistry B, Vol. 109, pp. 6210-6214. [34] Qian, L., Du, Z.L., Yang, S.Y. and Jin, Z.S. (2005). "Raman study of titania nanotube by soft chemical process." Journal of Molecular Structure, Vol. 749, pp. 103-107. [35] Stencel, J.M. (1989). Raman spectroscopy for catalysis, Springer. [36] Wang, G., Wu, W., Zhu, X., Sun, Y., Li, C. and Shan, H. (2014). "Effect of calcination temperature on isobutane dehydrogenation over Mo/MgAl2O4 catalysts." Catalysis Communications, Vol. 56, pp. 119-122. | ||
|
آمار تعداد مشاهده مقاله: 49,001 تعداد دریافت فایل اصل مقاله: 20,028 |
||