Dimerization of linear olefins on Amberlyst® 15: Effects of chain length and double-bond position

Gee, Jeffrey C.; Williams, Shawn T.

doi:10.1016/j.jcat.2013.03.017

Cited by 23 publications

(10 citation statements)

References 41 publications

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“…Langmuir-Hinshelwood-Hougen-Watson (LHHW) or its related Eley-Rideal (ER) kinetic models are widely used to represent data of liquid-phase reactions catalyzed by solids [1][2][3][4][5][6][7] but some inaccuracies appear because of the reaction medium-catalyst interaction. Frequently, some reactant or reaction product adsorbs preferably on the catalyst surface, e.g., polar species onto sulfonic styrene/divinylbenzene (S/DVB) resins, leading to a decrease of the reaction rate.…”

Section: Introductionmentioning

confidence: 99%

Kinetics of 1-hexanol etherification on Amberlyst 70

Bringué

Ramírez

Iborra

et al. 2014

Chemical Engineering Journal

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The kinetics of the liquid-phase etherification of 1-hexanol to di-n-ethyl ether and water on the ion-exchange resin Amberlyst 70 in the temperature range 423-463K is studied.The strong inhibition effect of water is considered following two approaches. First, a model stemming from a Langmuir-Hinshelwood-Hougen-Watson (LHHW) mechanism was used, wherein the inhibitor effect of water was explained by the competitive adsorption of water and hexanol. Secondly, a modified Eley-Rideal (ER) model that includes an inhibition factor, in which a Freundlich-like function is used to explain the inhibitor effect of water by blocking the access of hexanol to the active centers. Both models fitted data quite well, although the best fitting results were obtained with the modified ER model. The activation energy was 125 ± 3 kJ/mol for the LHHW model and 121 ± 3 kJ/mol for the modified ER one.

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Section: Introductionmentioning

confidence: 99%

Kinetics of 1-hexanol etherification on Amberlyst 70

Bringué

Ramírez

Iborra

et al. 2014

Chemical Engineering Journal

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“…5) and relative (Table 3) PS-DVBs K2620 and AM-35 have some acid sites that are close together on the same phenyl ring which provides more opportunity for the interaction of two acid sites. As the dimerization is generally considered to consist of a bimolecular rate-determining step in either a Langmuir-Hinshelwood or Eley-Rideal mechanism [5,31], such interaction would be expected to promote oligomerization, as observed here.…”

Section: Sulfonated Ps-dvb Catalystsmentioning

confidence: 66%

“…Sulfonated poly(styreneco-divinylbenzene) (PS-DVB), perfluorinated ion exchange resins, and acidic zeolites are most frequently used [2,[5][6][7][8][9]. Both skeletal isomerization (branching) and oligomerization compete with positional (double bond) isomerization.…”

Section: Introductionmentioning

confidence: 99%

Double-bond isomerization of hexadecenes with solid acid catalysts

Bruno

Dooley

2015

Applied Catalysis A: General

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“…A more broad study by Gee and Williams [127] examined the dimerization of C 8 to C 24 linear olefins over Amberlyst-15 resin at 363 K and 1.5 MPa, using neat alpha-olefins or their mixtures for competitive dimerization experiments. An ER reaction mechanism (i.e.…”

Section: Catalyst Processmentioning

confidence: 99%

“…The olefin adsorption and the rate of reaction were not influenced by the position of the olefin double-bond but the olefin chainlength (up to C 14 ) influences the adsorption coefficients therefore it affects the rate of reaction. When two or more olefins are used as mixed-feedstock their relative adsorption coefficients will determine the reaction rate of double-isomerization or dimerization [127].…”

Section: Catalyst Processmentioning

confidence: 99%