Abstract
Oligomerization of pure 1-hexene catalyzed by macroporous ion-exchange resins was performed in batch experiments at 350–390 K and 2 MPa. At 373 K, after 6 h, 1-hexene conversion was practically complete and the selectivity to dimers was 56%, that to trimers 0.8 and 43.2% to double-bond isomerization. By assuming an homogeneous kinetic model for olefin dimerization of second order reaction, a value of 64–68 kJ mol−1 for apparent activation energy was obtained.
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Abbreviations
- A:
-
Preexponential factor of Arrhenius equation (mol kg−1 h−1)
- A-15:
-
Macroporous ion-exchange resin Amberlyst 15
- A-16:
-
Macroporous ion-exchange resin Amberlyst 16
- A-35:
-
Macroporous ion-exchange resin Amberlyst 35
- A-36:
-
Macroporous ion-exchange resin Amberlyst 36
- A-39:
-
Macroporous ion-exchange resin Amberlyst 39
- A-46:
-
Macroporous ion-exchange resin Amberlyst 46
- A-48:
-
Macroporous ion-exchange resin Amberlyst 48
- B:
-
Bisulfonated
- C:
-
Conventionally sulfonated
- cj :
-
Concentration of j (mol j L−1)
- CT-175:
-
Macroporous ion-exchange resin Purolite CT-175
- CT-252:
-
Macroporous ion-exchange resin Purolite CT-252
- CT-275:
-
Macroporous ion-exchange resin Purolite CT-275
- CT-276:
-
Macroporous ion-exchange resin Purolite CT-276
- Ea :
-
Apparent activation energy (kJ mol−1)
- MN500:
-
Macroporous ion-exchange resin Purolite MN500
- GC/MS:
-
Gas chromatograph with mass detector
- K:
-
Apparent rate constant (mol1-n Ln kg−1 h−1)
- n:
-
Order of reaction (dimensionless)
- \( n_{1hex}^{o} \) :
-
Initial mole of 1-hexene (mol)
- \( n_{j}^{{}} \) :
-
mole of component j (mol)
- O:
-
Oversulfonated
- rj :
-
Reaction rate of component j (mol j kg−1 h−1)
- \( S_{j} \) :
-
Selectivity to product j (%) (dimensionless)
- SS:
-
Sulfonated only on surface
- SQ:
-
Sum of square of the residuals
- T:
-
Time (h)
- Wcat :
-
Mass of dry resin (kg)
- X1hex :
-
Conversion of 1-hexene (%) (dimensionless)
- Dim:
-
Dimers
- Hex:
-
Linear hexenes
- 1hex:
-
1-Hexene
- 2hex:
-
2-Hexene
- j:
-
Component j
- Trim:
-
Trimers
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Acknowledgments
The authors thank Rohm and Haas, and Purolite for providing their catalysts. We are also grateful to Repsol YPF for the financial support to this research and for permission to publish this work.
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Cadenas, M., Bringué, R., Fité, C. et al. Liquid-Phase Oligomerization of 1-Hexene Catalyzed by Macroporous Ion-Exchange Resins. Top Catal 54, 998 (2011). https://doi.org/10.1007/s11244-011-9721-y
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DOI: https://doi.org/10.1007/s11244-011-9721-y