Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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A Study of Pt-Mg/Mesoporous Aluminosilicate Catalysts for Synthesis of Jet-fuel from n-Octadecane

n-Octadecane 으로부터 항공유 제조를 위한 Pt-Mg/mesoporous aluminosilicate 촉매 연구

  • Jung, Euna (Department of Chemical Engineering, Kongju National University) ;
  • Kim, Chul-Ung (Center for Convergent Chemical Process, Korea Research Institute of Chemical Technology) ;
  • Jeon, Jong-Ki (Department of Chemical Engineering, Kongju National University)
  • 정은아 (공주대학교 화학공학부) ;
  • 김철웅 (한국화학연구원 CCP융합연구단) ;
  • 전종기 (공주대학교 화학공학부)
  • Received : 2016.05.08
  • Accepted : 2016.08.03
  • Published : 2016.10.01
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Abstract

Platinum catalysts supported on the mesoporous material synthesized from Y zeolite were applied to synthesis of jet-fuel through n-octadecane hydroupgrading. The mesoporous aluminosolicate, $MMZ_{HY}$ was synthesized using Y zeolite as its framework source. The effect of the addition of Mg to $Pt/MMZ_{HY}$ catalyst for n-octadecane hydroupgrading was investigated. Catalyst characterization was performed with X-ray diffraction, $N_2$ adsorption, temperature-programmed reduction in hydrogen flow, temperature-programmed desorption of ammonia, and infrared spectroscopy of adsorbed pyridine. The high yield of jet-fuel over the $PtMg(2.0)/MMZ_{HY}$ can be attributed not only to the higher dispersion of Pt metal and higher reducibility, but also the higher amount of acid sites and higher strength of acid sites. The selectivity to iso-paraffin in the jet-fuel fraction could be reached above 80% over the optimized $PtMg/MMZ_{HY}$ catalyst.

Y 제올라이트로부터 합성한 메조 포러스 물질을 지지체로 사용한 백금 촉매를 n-octadecane의 수첨업그레이딩 반응을 통한 항공유 제조에 적용 하였다. Y 제올라이트를 골격 구성물질로 사용하여 메조 포러스 알루미노실리케이트($MMZ_{HY}$)를 합성 하였다. $Pt/MMZ_{HY}$ 촉매상에서 Mg 첨가가 n-octadecane의 수첨업그레이딩 반응에 미치는 영향을 고찰 하였다. 촉매의 특성은 X 선 회절, 질소 흡착, 승온환원, 암모니아승온탈착 및 흡착 피리딘 적외선 분광법으로 수행 하였다. 본 연구에서 Mg가 2 wt% 첨가된 $Pt/MMZ_{HY}$ 촉매가 가장 높은 항공유 수율을 보였는데, 이는 Mg의 첨가에 의해 Pt금속의 분산도와 환원도가 증가할 뿐만 아니라, 산점의 양과 세기가 증가하기 때문이다. 또한 $PtMg/MMZ_{HY}$ 촉매 상에서 이소 파라핀에 대한 선택도가 80 % 이상임을 확인하였다.

Keywords

References

  1. Pope, J. and Owen, A. D., "Emission Trading Schemes: Potential Revenue Effects, Compliance Costs and Overall Tax Policy Issues," Energy Policy, 37, 4595-4603(2009). https://doi.org/10.1016/j.enpol.2009.06.014
  2. Han, J., Elgowainy, A., Cai, H. and Wang, M. Q., "Life-cycle Analysis of Bio-based Aviation Fuels," Bioresour. Technol., 150, 447-456(2013). https://doi.org/10.1016/j.biortech.2013.07.153
  3. Liu, G., Yan, B. and Chen, G., "Technical Review on Jet Fuel Production," Renewable Sustainable Energy Rev., 25, 59-70(2013). https://doi.org/10.1016/j.rser.2013.03.025
  4. Cai, C., Liu, Q., Tan, J., Wang, T., Zhang, Q. and Ma, L., "Synthesis of Renewable Jet Fuel Precursors from C-C Bond Condensation of Furfural and Ethyl Levulinate in Water," Korean Chem. Eng. Res., 54, 519-526(2016). https://doi.org/10.9713/kcer.2016.54.4.519
  5. Sim, Y. J., Kim, J. H. and Kim, E. Y., "Development of Solid Base Catalyst $K_2CO_3$/${\gamma}-Al_2O_3$ for the Production of Biodiesel," Korean Chem. Eng. Res., 54, 64-69(2016). https://doi.org/10.9713/kcer.2016.54.1.64
  6. Bouchy, C., Hastoy, G., Guillon, E. and Martens, J. A., "Fischer-Tropsch Waxes Upgrading via Hydrocracking and Selective Hydroisomerization," Oil & Gas Science and Technology - Rev. IFP, 64, 91-112(2009). https://doi.org/10.2516/ogst/2008047
  7. Liu, Y., Murata, K. and Sakanishi, K., "Hydroisomerization-cracking of Gasoline Distillate from Fischer-Tropsch Synthesis over Bifunctional Catalysts Containing Pt and Heteropolyacids," Fuel, 90, 3056-3065(2011). https://doi.org/10.1016/j.fuel.2011.05.004
  8. Busto, M., Lovato, M. E., Vera, C. R., Shimizu, K. and Grau, J. M., "Silica Supported Tungsta-zirconia Catalysts for Hydroisomerization-cracking of Long Alkanes," Appl. Catal. A: Gen., 355, 123-131(2009). https://doi.org/10.1016/j.apcata.2008.12.009
  9. Deldari, H., "Suitable Catalysts for Hydroisomerization of Longchain Normal Paraffins," Appl. Catal. A: Gen., 293, 1-10(2005). https://doi.org/10.1016/j.apcata.2005.07.008
  10. Park, K. C. and Ihm, S. K., "Comparison of Pt/Zeolite Catalysts for n-hexadecane Hydroisomerization," Appl. Catal. A: Gen., 203, 201-209(2000). https://doi.org/10.1016/S0926-860X(00)00490-7
  11. Hanafi, S. A., Gobara, H. M., Elmelawy, M. S., Abo-El-Enein, S. A. and Alkahlawy, A. A., "Catalytic Behavior of Pt Nanoparticles Dealuminated Y-zeolite for Some n-alkane Hydroisomerization," Egypt. J. Pet., 23, 151-161(2014). https://doi.org/10.1016/j.ejpe.2014.05.001
  12. Ren, X. T., Li, N., Cao, J. Q., Wang, Z. Y., Liu, S. Y. and Xiang, S. H., "Hydroisomerization of n-decane over Pt/SAPO-41 Catalyst," Appl. Catal. A: Gen., 298, 144-151(2006). https://doi.org/10.1016/j.apcata.2005.09.031
  13. De Lucas, A., Sanchez, P., Funez, A., Ramos, M. J. and Valverde, J. L., "Influence of Clay Binder on the Liquid Phase Hydroisomerization of n-octane over Palladium-containing Zeolite Catalysts," J. Mol. Catal. Chem., 259, 259-266(2006). https://doi.org/10.1016/j.molcata.2006.06.020
  14. Yang, X., Ma, H., Xu, Z., Xu, Y., Tian, Z. and Lin, L., "Hydroisomerization of n-dodecane over Pt/MeAPO-11 (Me = Mg, Mn, Co or Zn) Catalysts," Catal. Commun., 8, 1232-1238(2007). https://doi.org/10.1016/j.catcom.2006.11.005
  15. Ravishankar, R. and Sivasanker, S., "Hydroisomerization of n-hexane over Pt-H-MCM-22," Appl. Catal. A: Gen., 142, 47-59(1996). https://doi.org/10.1016/0926-860X(96)00017-8
  16. Geng, C. H., Zhang, F., Gao, Z. X., Zhao, L. F. and Zhou, J. L., "Hydroisomerization of n-tetradecane over Pt/SAPO-11 Catalyst," Catal. Today, 93-95, 485-491(2004). https://doi.org/10.1016/j.cattod.2004.06.104
  17. Yun, S. Y., Lee, E. O., Park, Y. K., Jeong, S. Y., Han, J. S., Jeong, B. H. and Jeon, J. K., "Selective Hydroisomerization of n-dodecane over Platinum Supported on Zeolites," Res. Chem. Intermed., 37, 1215-1223(2011). https://doi.org/10.1007/s11164-011-0386-8
  18. Wang, G., Liu, Q., Su, W., Li, X., Jiang, Z., Fang, X., Han, C. and Li, C., "Hydroisomerization Activity and Selectivity of n-dodecane over Modified Pt/ZSM-22 Catalysts," Appl. Catal. A: Gen., 335, 20-27(2008). https://doi.org/10.1016/j.apcata.2007.11.002
  19. Ren, X. T., Li, N., Cao, J. Q., Wang, Z. Y., Liu, S. Y. and Xiang, S. H., "Hydroisomerization of n-decane over Pt/SAPO-41 Catalyst," Appl. Catal. A: Gen., 298, 144-151(2006). https://doi.org/10.1016/j.apcata.2005.09.031
  20. Liu, P., Zhang, X., Yao, Y. and Wang, J., "Pt Catalysts Supported on ${\beta}$ Zeolite Ion-exchanged with Cr(III) for Hydroisomerization of n-heptane," Appl. Catal. A: Gen., 371, 142-147(2009). https://doi.org/10.1016/j.apcata.2009.09.045
  21. Calemma, V., Peratello, S. and Perego, C., "Hydroisomerization and Hydrocracking of Long Chain n-alkanes on Pt/amorphous $SiO_2$-$Al_2O_3$ Catalyst," Appl. Catal. A:Gen., 190, 207-218(2000). https://doi.org/10.1016/S0926-860X(99)00292-6
  22. Liu, P., Ren, J. and Sun, Y. H., "Effect of Template Content on the Physicochemical Characterization and Catalytic Performance of SAPO-11 for the Hydroisomerization of n-tetradecane," J. Fuel Chem. Technol., 36, 610-615(2008). https://doi.org/10.1016/S1872-5813(08)60035-3
  23. Fan, Y., Bao, X., Shi, G., Wei, W. and Xu, J., "Olefin Reduction of FCC Gasoline via Hydroisomerization Aromatization over Modified HMOR/HZSM-5/H${\beta}$ Composite Carriers," Appl. Catal. A: Gen., 275, 61-71(2004). https://doi.org/10.1016/j.apcata.2004.07.046
  24. Satterfield, C. N., Heterogeneous Catalysis in Industrial Practice, 2nd ed., McGraw-Hill, New York(1993).
  25. Lee, S. W. and Ihm, S. K., "Hydroisomerization and Hydrocracking over Platinum Loaded ZSM-23 Catalysts in the Presence of Sulfur and Nitrogen Compounds for the Dewaxing of Diesel Fuel," Fuel, 134, 237-243(2014). https://doi.org/10.1016/j.fuel.2014.05.068
  26. Jung, E. A., Jeon, S. H., Kim, C. U., Jeong, S. Y., Park, Y. K. and Jeon, J. K., "Hydro-upgrading of n-octadecane over Pt-Mg/HY Catalysts," Catal. Today, 265, 124-130(2016). https://doi.org/10.1016/j.cattod.2015.09.037
  27. Lee, H. I., Park, H. J., Park, Y. K., Hur, J. Y., Jeon, J. K. and Kim, J. M., "Synthesis of Highly Stable Mesoporous Aluminosilicates from Commercially Available Zeolites and Their Application to the Pyrolysis of Woody Biomass," Catal. Today, 132, 68-74(2008). https://doi.org/10.1016/j.cattod.2007.12.029
  28. Raddi de Araujo, L. R. and Schmal, M., "Pt-Cr/ZSM-5 Catalysts for Propane and Cyclohexane Conversions," Appl. Catal. A: Gen., 235, 139-147(2002). https://doi.org/10.1016/S0926-860X(02)00267-3