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The influence of mordenite characteristics in mordenite mixed with alumina on cracking of vacuum gas oil |
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| Authors: | Kyong-Hwan Lee Youn-Woo Lee Jae-Duck Kim Kwang-Su Jeon Baik-Hyon Ha |
| Affiliation: | (1) Department of Chemical Engineering, College of Engineering, Hanyang University, 17 Haengdangdong, Sungdongku, 133-791 Seoul, Korea;(2) Environment Remediation Center, Korea Institute of Science and Technology, 39-1 Haweolkok-dong, Sungbuk-ku, 136-791 Seoul, Korea;(3) Department of Industrial Chemistry, Chonbuk Sanup University, 727 Wolha-Ri,Impi-Myun, Okgu-Gun, 575-930 Chonbuk, Korea;(4) Environment Remediation Center, Korea Institute of Science and Technology, 39-1 Haweolkok-dong, Sungbuk-ku, 136-791 Seoul, Korea |
| Abstract: | Catalytic cracking of vacuum gas oil has been investigated at 500 ‡C over mixed catalysts in a micro-activity tester. The catalyst consists of mordenite treated by either HCl/steam or HF and alumina prepared at pH of 9.5 or 7.8. The catalysts retaining mordenite in which SiO2/Al2O3 weight ratio ranged from 15 to 20 show the max-imum activity and selectivity for gasoline. Both the activity and selectivity for gasoline seem to depend strongly on both acid strength of mixed catalysts and mesopore volume of the mordenite. It is found, however, that the selectivity of kerosene+diesel in liquid product as well as the yield of aromatics in gasoline are influenced more by mesopore volume of mordenite than by acid properties of mordenite in the catalyst of mordenite/alumina. |
| Keywords: | Catalytic Cracking Vacuum Gas Oil Pretreatment Mordenite/Alumina Mesopore of Mordenite |
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