Browse > Article
http://dx.doi.org/10.9713/kcer.2019.57.4.575

Study of the Dehydrogenation Characteristics of Pt-Sn Catalysts by Propane Pulse Injection  

Koh, Hyoung Lim (Department of Chemical Engineering, Hankyong National University)
Jung, Jae-Won (Department of Chemical Engineering, Hankyong National University)
Choi, Yi-Sun (Department of Chemical Engineering, Hankyong National University)
Publication Information
Korean Chemical Engineering Research / v.57, no.4, 2019 , pp. 575-583 More about this Journal
Abstract
The results of the catalytic reaction by pulsed injection of reactants are useful for studying the initial reaction characteristics in the case of many coke invloved reactions. The dehydrogenation characteristics of alumina supported platinum tin catalysts were investigated by pulsed injection of propane. The yield of propylene was maximized when the reduction time of propane injection catalyst was $550^{\circ}C$. Raman analysis showed that the amount of coke was very small when PtSn (4.5) catalyst was used and the short contact time was simulated by propane pulse injection. n order to differentiate the degree of dispersion of platinum, PtSn (4.5) catalyst was sintered at $900^{\circ}C$ with hydrogen, and then the temperature of air - redispersion was varied and propane pulse was injected. As a result, conversione and yield were the highest when air-redispersion temperature is $600^{\circ}C$. The lower the air-redispersion temperature, the higher the selectivity. As the tin content in the platinum catalyst increased, the propane conversion was lowered, but the selectivity to propylene increased and the yield increased. From this, it can be seen that the tin-added platinum catalyst is less active than the platinum catalyst from the beginning of the reaction, which is less affected by coke. The dehydrogenation reaction by the propane pulse injection shows a higher conversion rate than the result of continuous injection due to the formation of COx, and the amount of coke is very small. Decrease in selectivity due to the formation of COx can be reduced by increasing the reduction temperature and time.
Keywords
Propane; Propylene; Dehydrogenation; Pt Sn catalyst; Pulse injection;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Shan, Y., Sui, Z., Zhu, Y., Chen, D. and Zhou, X., "Effect of Steam Addition on the Structure and Activity of Pt-Sn Catalysts in Propane Dehydrogenation," Chem. Eng. J., 278, 240-248(2015).   DOI
2 Han, Z., Li, S., Jiang, F., Wang, T., Ma, X. and Gong, J., "Propane Dehydrogenation over Pt-Cu Bimetallic Catalysts: the Nature of Coke Deposition and the Role of Copper," Nanoscale, 6, 10000-10008(2014).   DOI
3 Wagner C. D., NIST X-ray Photoelectron Spectroscopy Database, NIST, Gathersburg, 1989.
4 Virnovskaia, A., Jorgensen, S., Hafizovic, J., Prytz, O., Kleimenov, E., Havecker, M., Bluhm, H., Knop-Gericke, A., Schlogl, R. and Olsbye, U., "In situ XPS Investigation of Pt(Sn)/Mg(Al)O Catalysts During Ethane Dehydrogenation Experiments," Surf. Sci. 601, 30-43(2007).   DOI
5 Vu, B. K., Song, M. B., Ahn, I. Y., Suh, Y. W., Suh, D. J., Kim, W. I., Koh, H. L., Choi, Y. G. and Shin, E. W., "Pt-Sn Alloy Phases and Coke Mobility over Pt-Sn/$Al_2O_3$ and Pt-Sn/$ZnAl_2O_4$ Catalysts for Propane Dehydrogenation," Appl. Catal. A., 400, 25-33 (2011).   DOI
6 Adkins, S. R. and Davis, B. H., "The Chemical State of Tin in Platinum-tin-alumina Catalysts," J. Catal., 89, 371-379(1984).   DOI
7 Siri, G. J., Ramallo-Lopez, J. M., Casella, M. L., Fierro, J. L. G., Requejo, F. G. and Ferretti, O. A., "XPS and EXAFS Study of Supported PtSn Catalysts Obtained by Surface Organometallic Chemistry on Metals : Application to the Isobutane Dehydrogenation," Appl. Catal. A., 278, 239-249(2005).   DOI
8 Jesper, J. H. B. Sattler, Javier Ruiz-Martinez, Eduardo Santillan- Jimenez, and Bert M. Weckhuysen, "Catalytic Dehydrogenation of Light Alkanes on Metals and Metal Oxides," Chem. Rev., 114, 10613-10653(2014).   DOI
9 Nawaz, Z., "Light Alkane Dehydrogenation to Light Olefin Technologies: A Comprehensive Review," Rev. Chem. Eng., 31, 413-436(2015).   DOI
10 Bhasin, M. M., McCain, J. H., Vora, B. V., Imai, T. and Pujado, P. R., Appl. Catal. A., 221, 397-419(2001).   DOI
11 Loc, L. C., Gaidai, N. A. and Kipeman, S. L., In: Proc. 9th Internat. Congr. Catal., 3, 1261(1988).
12 Jablonski, E. L., Castro, A. A., Scelza, O. A. and Miguel, S. R. de., "Effect of Ga Addition to Pt/$Al_2O_3$ on the Activity, Selectivity and Deactivation in the Propane Dehydrogenation," Appl. Catal. A. Gen., 183, 189-198(1999).   DOI
13 Yu, C., Ge, Q., Xu, H. and Li, W., "Propane Dehydrogenation to Propylene over Pt-based Catalysts," Catal. Lett., 112, 197-201 (2006).   DOI
14 Corro, C., Marecot, P., Barbier, J., Bartholomew, C. H. and Fuentes, G. A., "Catalyst Deactivation 1997," Stud. Surf. Sci. Catal., 111, 359(1997).   DOI
15 Miguel, S. R. de., Jablonski, E. L., Castro, A. A. and Scelza, O. A., J. Chem. Technol. Biotechnol., 75, 596(2000).   DOI
16 Praserthdam, P., Mongkhonsi, T., Kunatippapong, S., Jaikaew, B. and Lim, N., "Determination of Coke Deposition on Metal Active Sites of Propane Dehydrogenation Catalysts," Stud. Surf. Sci. Catal., 111, 153-158(1997).   DOI
17 Kumar, M. S., Chen, D., Walmsley, J. C. and Holmen A., "Dehydrogenation of Propane over Pt-SBA-15: Effect of Pt Particle Size," Catal. Commun., 9, 747-750(2008).   DOI
18 Akporiaye, D., Jensen, S. F., Olsbye, U., Rohr, F., Rytter, E., Ronnekleiv, M. and Spielkavik, A. I., "A Novel, Highly Efficient Catalyst for Propane Dehydrogenation," Ind. Eng. Chem. Res., 40, 4741-4748(2001).   DOI
19 Hullmann, D., Wendt, G., Singliar, U. and Ziegenbalg, G., "Propane Dehydrogenation over Supported Platinum Silicon Nitride Catalysts," Appl. Catal. A. Gen., 225, 261-270(2002).   DOI
20 Beekman, J. W. and Froment, G. F., "Catalyst Deactivation by Active Site Coverage and Pore Blockage," Ind. Eng. Chem. Fundamen., 18, 245-256(1979).   DOI
21 Gascon, J., Tellez, C., Herguido, J. and Menendez, M., "A Twozone Fluidized Bed Reactor for Catalytic Propane Dehydrogenation," Chem. Eng. J., 106, 91-96(2005).   DOI
22 Sanfilippo, D., Buonomo, F., Fusco, G., Lupieri, M. and Miracca, I., "Fluidized Bed Reactors for Paraffins Dehydrogenation," Chem. Eng. Sci., 47, 2313-2318(1992).   DOI
23 Siriwardane, R., Benincosa, W., Riley, J., Tian, H. and Richards, G., "Investigation of Reactions in a Fluidized Bed Reactor During Chemical Looping Combustion of Coal/steam with Copper Oxideiron Oxide-alumina Oxygen Carrier," Appl. Energy., 183, 1550-1564(2016).   DOI
24 Banerjee, S. and Agarwal, R., "Transient Reacting Flow Simulation of Spouted Fluidized Bed for Coal-direct Chemical Looping Combustion with Different Fe-based Oxygen Carriers," Appl. Energy., 160, 552-560(2015).   DOI
25 Sanfilippo, D., "Dehydrogenations on Fluidized Bed: Catalysis and Reactor Engineering," Catal. Today., 178, 142-150(2011).   DOI
26 Sim, S., Gong, S., Bae, J., Park, Y. K., Kim, J., Choi, W. C., Hong, U. G., Park, D. S., Song, I. K., Seo, H., Kang, N. Y. and Park, S., "Chromium Oxide Supported on Zr Modified Alumina for Stable and Selective Propand Dehydrogenation in Oxygen Free Moving Bed Process," Molecular Catalysis., 436, 164-173(2017).   DOI
27 Kim, G. H., Jung, K. D., Kim, W. I., Um, B. H., Shin, C. H., Oh, K. and Koh, H. L., "Effect of Oxychlorination Treatment on the Regeneration of Pt-Sn/$Al_2O_3$ Catalyst for Propane Dehydrogenation," Research on Chemical Intermediates, 42, 351-365(2016).   DOI
28 Kawakami, M., Karato, T., Takenaka, T. and Yokoyama, S., "Structure Analysis of Coke, Wood, Charcoal and Bamboo Charcoal by Raman Spectroscopy and Their Reactrion Rate with $CO_2$," The Iron and Steel Institute of Japan, 45, 1027-1034(2005).   DOI
29 Choi, S. M., "A Horizon of Science," Korea Institute for Advanced Study, 47, 23-25(2013).
30 Miracca, I. and Piovesan, L., "Light Paraffins Dehydrogenation in a Fluidized Bed Reactor," Catal. Today., 52, 259-269(1999).   DOI