Trimerization of isobutene over zeolite catalysts: Remarkable performance over a ferrierite zeolite

Yoon, Ji Woong; Lee, Ji Hye; Chang, Jong‐San; Choo, Dae Hyun; Lee, Seong Jun; Jhung, Sung Hwa

doi:10.1016/j.catcom.2006.10.006

Cited by 35 publications

(41 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…-type zeolite by twice cationic exchange, in which it was treated with 0.5 mol/L ammonium nitrate aqueous solution at 90°C for 4 h (Tianjing Chem., A.R.). The NH 4 ? -type zeolite was washed twice by hot water (90°C).…”

Section: Catalyst Preparationmentioning

confidence: 99%

“…-type zeolite was washed twice by hot water (90°C). The washed NH 4 ? -type zeolite solid was dried at 110°C for 12 h and then calcined at 550°C for 5 h to transfer to H ?…”

Section: Catalyst Preparationmentioning

confidence: 99%

“…were calcined in a muffle furnace at 550°C for 10 h to remove the organic template. Subsequently, the zeolite was converted into NH 4 ? -type zeolite by twice cationic exchange, in which it was treated with 0.5 mol/L ammonium nitrate aqueous solution at 90°C for 4 h (Tianjing Chem., A.R.).…”

Section: Catalyst Preparationmentioning

confidence: 99%

“…Recently, Yoon and co-worker [3][4][5] reported that ferrierite zeolite, zeolite b and Amberlyst-35 showed high catalytic performance in iso-butene trimerization. For example, zeolite b appeared remarkable performance with the selectivity of trimers higher than 50% up to 100 h at high iso-butene weight hourly space velocity (WHSV) of 10 h -1 ; in addition, the deactivated catalyst could be regenerated easily by calcining in flowing air [3].…”

Section: Introductionmentioning

confidence: 98%

“…Nevertheless, it is not clear that effect of the properties on butene trimerization over solid acid catalyst. Yoon et al [3][4][5] considered that the high reactivity and stability of the catalyst in iso-butene trimerization were owed to the high concentration of L acid sites on the catalyst. Mantilla et al [6] thought that the selectivity of trimers in butene oligomerization strongly depended on the ratio of L/B acid sites over the sulfated TiO 2 catalysts.…”

Section: Introductionmentioning

confidence: 98%

See 4 more Smart Citations

Trimerization of Butene over Ni-doped Zeolite Catalyst: Effect of Textural and Acidic Properties

et al. 2008

View full text Add to dashboard Cite

The amount of acid sites on external surface and L/B ratio of the zeolite catalysts are close relative to the catalytic performance of the catalysts in butene trimerization. The doping of Ni into the zeolite modifies the textural and acidic properties of the catalyst. NiHb(32) exhibits the highest catalytic performance and the lowest apparent activity energy in butene trimerization among the investigated catalysts, due to the reason that it has the proper amount of acid sites on external surface and the proper L/B ratio.

show abstract

Section: Catalyst Preparationmentioning

confidence: 99%

“…-type zeolite was washed twice by hot water (90°C). The washed NH 4 ? -type zeolite solid was dried at 110°C for 12 h and then calcined at 550°C for 5 h to transfer to H ?…”

Section: Catalyst Preparationmentioning

confidence: 99%

Section: Catalyst Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

See 3 more Smart Citations

Trimerization of Butene over Ni-doped Zeolite Catalyst: Effect of Textural and Acidic Properties

et al. 2008

View full text Add to dashboard Cite

show abstract

Distribution of Effective Ferrierite Active Sites for Skeletal Isomerization of n‐Butene to Isobutene

Liu

et al. 2019

ChemistrySelect

View full text Add to dashboard Cite

In this study, the effective active sites of aged ferrierite(FER) were confirmed to be located in the 10‐membered ring (10‐MR) pore mouths by modification with ammonium hexafluorosilicate((NH4)2SiF6 )and long‐term experiments. Analysis of SiO2/Al2O3 ratios showed that aluminum atoms were selectively removed from the FER surface after the modification with (NH4)2SiF6. Comparison of the catalytic properties before and after modification showed that the catalytic activity of aged FER depended only on the amount of acid sites located in the 10‐MR pore mouths. Monitoring of the change in acid amount with reaction time and the difference between aged and deactivated FER showed that aged FER retained only weak acid sites, and its deactivation was caused by carbon deposition on the 10‐MR pore mouth acid sites. Therefore, the catalytic performance of FER can be improved by increasing the number of 10‐MR pore mouths.

show abstract

Trimerization of Isobutene Over Solid Acid Catalysts

Jhung

Chang

2009

Catal Surv Asia

Self Cite

View full text Add to dashboard Cite

Oligomerization of isobutene is a very promising reaction not only for the production of isobutene oligomers such as trimers but also for the separation of isobutene from C 4 mixtures. Several solid acid catalysts have been applied for the continuous oligomerization of isobutene in liquid phase. This review analyzes the trimerization of isobutene over various solid acid catalysts such as zeolites, oxides (zirconias and titanias) and acid resins. Trimers selectivity increases with increasing isobutene conversion, irrespective of catalysts such as zeolites and acid resins. Very stable operation with high trimers selectivity is accomplished with WO x /ZrO 2 catalyst having tetragonal zirconia or various zeolite catalysts with high Lewis acid site-to-Brønsted acid site ratio (LA/BA ratio). For a good performance, acid resins should be macroporous and strong acid (sulphonic acid group) with high acid concentration. Inorganic catalysts are superior to acid resins because the deactivated inorganic materials can be regenerated by simple calcination. The WO x /ZrO 2 catalyst may be applied to a commercial process because about several thousand tons of isobutene can be oligomerized per one ton of zirconia catalyst in a catalytic cycle without regeneration. The oligomerization of isobutene may be improved further because the reaction has been started only recently and no research has been done for the optimization of the reaction and catalysts. It is expected to develop a new inorganic catalyst having suitable acidity, LA/BA ratio and phase, etc. by further research. The isobutene trimers, with or without hydrogenation, may be used for various purposes, and the importance of this trimerization reaction will be increased considering the expected surplus of isobutene due to the banned use of methyl-tert-butyl ether.

show abstract

Trimerization of isobutene over zeolite catalysts: Remarkable performance over a ferrierite zeolite

Cited by 35 publications

References 17 publications

Trimerization of Butene over Ni-doped Zeolite Catalyst: Effect of Textural and Acidic Properties

Trimerization of Butene over Ni-doped Zeolite Catalyst: Effect of Textural and Acidic Properties

Distribution of Effective Ferrierite Active Sites for Skeletal Isomerization of n‐Butene to Isobutene

Trimerization of Isobutene Over Solid Acid Catalysts

Contact Info

Product

Resources

About