The effect of sulfates concentration in sulfated zirconia (SZ) catalysts n-heptane isomerization

Petroleum Science and Technology

Volumn 28, Issue 4, 2010, Pages 374-381

  Alemán Vázquez, Laura O ^a   Mariel Reyes, Patricia R ^a,b   Cano Domínguez, Jose Luis ^a  

^a INSTITUTO MEXICANO DEL PETRÓLEO   (Mexico)

^b UNIVERSIDAD AUTÓNOMA DEL ESTADO DE HIDALGO   (Mexico)

Author keywords

Catalyst; Isomerization; N heptane; Sulfated zirconia; Sulfates

Indexed keywords

BET SURFACE AREA; EXPERIMENTAL SYSTEM; HIGH RESOLUTION; IMPREGNATION METHODS; N-HEPTANES; SULFATED ZIRCONIA; SULFATED ZIRCONIA CATALYSTS; SUPERACID; ZIRCONIA CATALYSTS;

ACIDS; CATALYST DEACTIVATION; ELECTRON TRANSITIONS; HEPTANE; INFRARED SPECTROSCOPY; ISOMERIZATION; ISOMERS; PARAFFINS; RAMAN SPECTROSCOPY; X RAY DIFFRACTION;

ZIRCONIA;

EID: 77949599207     PISSN: 10916466     EISSN: 15322459     Source Type: Journal    
DOI: 10.1080/10916460903070090     Document Type: Article

References (20)

1. ASTM International. (2008). Available at: www.astm.org.
2. Babou, F., Coudurier G., and Vedrine J. C. (1995). Acidic properties of sulfated zirconia: An infrared spectroscopic study. J. Catal. 152:341-349.
3. Benai¨ssa,M., Santiesteban, J. G., Di´az, G., Chang, C. D., and Jose´-Yacama´n,M. (1996). Interaction of sulfate groups with the surface of zirconia: An HRTEM characterization study. J. Catal. 161:694-703.
4. Chuah, G. K., and Jaenicke, S. (1997). The preparation of high surface area zirconia-Influence of precipitating agent and digestion. Appl. Catal. Gen. 163:261-273.
5. Garin, F., Andriamasinoro, D., Abdulsamad, A., and Sommer, J. (1991). Conversion of butane over the solid superacid ZrO2/SO2 4 in the presence of hydrogen. J. Catal. 131:199-203.
6. Grau, J. M., and Parera, J. M. (1997). Single and composite bifunctional catalysts of H-MOR or SO2 4 -ZrO2 for n-octane hydroisomerization-cracking. Appl. Catal. Gen. 162:17-27.
7. Hino, M., and Arata, K. (1979). Solid catalysts treated with anions. III. Reaction of butane to isobutane catalyzed by iron oxide treated with sulfate ion. Solid superacid catalysts. Chem. Lett. 10:1259-1260.
8. Iglesia, E., Soled, S. L., and Kramer, G. M. (1993). Isomerization of alkanes on sulfated zirconia: Promotion by Pt [platinum] and by adamantyl hydride transfer species. J. Catal. 144:238-253.
9. Jin, T., Yamaguchi, T., and Tanabe, K. (1986). Mechanism of acidity generation on sulfur-promoted metal oxides. J. Phys. Chem. 90:4794-4796.
10. Keogh, R. A., and Burtron, H. D. (1999). Hydroconversion of n-hexadecane with Pt-promoted monoclinic and/or tetragonal sulfated zirconia catalysts. Catal. Lett. 57:33-35.
11. Manish, K. M., Beena, T., and Raksh, V. J. (2003). Effect of synthetic parameters on structural, textural and catalytic properties of nanocrystalline sulfated zirconia prepared by sol-gel technique. Ind. Eng. Chem. Res. 42:5727-5736.
12. Melada, S., Signoretto, M., Somma, F., Pinna, F., Cerrato, G., Meligrana, G., and Morterra, C. (2004). Gas- and liquid-phase reactions on sulphated zirconia prepared by precipitation. Catal. Lett. 94:193-198.
13. Parvulescu, V., Coman, S., Grange, P., and Parvulescu,V. I. (1999). Preparation and characterization of sulfated zirconia catalysts obtained via various procedures. Appl. Catal. Gen. 176:27-43.
14. Riemer, T., Spielbauer, D., Hunger, M., Mekhemer, G. A. H., and Kno¨zinger, H. (1994). Superacid properties of sulfated zirconia as measured by Raman and 1H MAS NMR. Chem. Comm. 1181-1182.
15. Sameer, V., and Wolf, E. E. (2004). A highly active and stable platinum-modified sulfated zirconia catalyst. 1. Preparation and activity for n-pentane isomerization. Appl. Catal. Gen. 264:117-124.
16. Sayari, A., and Dicko, A. (1994). The state of platinum on Pt-on-sulfated zirconia superacid catalysts. J. Catal. 145:561-564.
17. Spielbauer, D., Mekhemer, G. A. H., Bosch, E., and Kno¨zinger, H. (1996). N-butane isomerization on sulfated zirconia. Deactivation and regeneration as studied by Raman, UV-Vis diffuse reflectance and ESR spectroscopy. Catal. Lett. 36:59-68.
18. Vera, C. R., Pieck, C. L., Shimizu, K., and Parera, J. M. (2002). Tetragonal structure, anionic vacancies and catalytic activity of SO2 4 -ZrO2 catalysts for n-butane isomerization. Appl. Catal. Gen. 230:137-151.
19. Yori, J. C., Luy, J. C., and Parera, J. M. (1989). Deactivation of H-mordenite and a ZrO2/SO.2/ 4 catalyst during n-butane isomerization. Appl. Catal. 46:103-112.
20. Yori, J. C., Pieck, C. L., and Parera, J. M. (1998). Phosphate as a promoter of zirconia for alkane isomerization reactions. Catal. Lett. 52:3-4.