PLATINUM LOADED DEALUMINATED H-MOR AND H-BEA ZEOLITES FOR N-HEXANE HYDROCONVERSION | ||||
| The International Conference on Chemical and Environmental Engineering | ||||
| Article 5, Volume 3, 3rd International Conference On Chemical & Environmental Engineering, May 2006, Page 254-267 PDF (415.6 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/iccee.2006.41000 | ||||
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| Authors | ||||
| Aboul-Gheit A. K.; Abdel-Hamid S. M.; Awadallah A. E. | ||||
| Egyptian Petroleum Research Institute. | ||||
| Abstract | ||||
| ABSTRACT n-Hexane was isomerized in a micro-catalytic pulse reactor over a series of platinum loaded dealuminated H-MOR and H-BEA catalysts with various Si/Al ratios. Steaming and HCl processes were applied in the dealumination of the two zeolites. TPD data showed that H-MOR zeolite and its dealuminated samples possess higher acid sites number and strength than the corresponding H-BEA zeolite versions, whereas the dispersion of 0.35wt%Pt was higher on the latter samples. The results showed that the steam treatment inhibits the hydroisomerization activity on both zeolites due to the formation of extra-framework aluminum species in the pores of the zeolites as shown from SEM studies. However, acid leaching promotes the catalytic activity by widing the pore opening. Generally, H-BEA containing catalysts either untreated or dealuminated showed higher hydroisomerization activities than the other H-MOR containing catalysts. | ||||
| Keywords | ||||
| Hydroconversion; n-hexane; H-MOR zeolite; H-BEA zeolite; dealumination; platinum | ||||
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