Effect of Re on product yields and deactivation patterns of naphtha reforming catalyst
IR@IIP: CSIR-Indian Institute of Petroleum, Dehradun
View Archive Info| Field | Value | |
| Creator |
Viswanadham,N
Kamble,Raviraj Sharma,Amit Manoj, Kumar Saxena,A.K |
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| Date |
2009-07-15T10:32:03Z
2009-07-15T10:32:03Z 2009-07-15T10:32:03Z |
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| Identifier |
Journal of Molecular Catalysis A: Chemical 282 (2008) 74–79
http://hdl.handle.net/123456789/340 |
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| Description |
The effect of rhenium concentration on the activity and stability of Pt–Re/Al2O3 catalysts used in naphtha reforming were studied by varying the
rhenium concentration. The samples were prepared by the co-impregnation method on chloride alumina. The platinum content was 0.3 wt.%, and
the rhenium loading was varied to obtain Re/Pt weight ratios of 1.0, 1.5, 2.0, 2.5 and 3. Re loading greatly influenced the catalytic properties and
product yields in naphtha reforming. TPR profiles indicated the increase in hydrogen uptake, but decrease in reducibility of rhenium with increase
of rhenium loading. At low rhenium loadings, the catalyst exhibited the presence of two groups of rhenium reduced at two different temperatures,
while the peaks are merged in to a single sharp peak at higher rhenium loadings. Increase in aromatic yields and decrease in cracking yields was
observed up to 0.6 wt.% rhenium loading (Re/Pt weight ratio = 2.0). Further increase of Re caused decrease in xylene and C9+ with simultaneous
increase of benzene, toluene, methane and ethane yields. The catalyst with 0.6 wt.% rhenium exhibited best aromatic yields and highest hours-on-oil
performance
Keywords: Reforming; Rhenium; Bi-metallic catalysts; Reducibility; Hydrogen uptake
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| Language |
en_US
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| Subject |
Reforming
Bi-metallic catalysts |
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| Title |
Effect of Re on product yields and deactivation patterns of naphtha reforming catalyst
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| Type |
Article
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