Dimethylhexane Formation in Butene Alkylation

Zimmerman, C. A.; Kelley, J. T.; Dean, J. C.

doi:10.1021/i360002a013

Cited by 7 publications

(3 citation statements)

References 4 publications

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“…During the alkylation of isobutane with butenes more dimethylhexane is formed with 1-butene than with 2-butene (Zimmerman et al, 1962). The dimethylhexanes are formed by the reaction of 1-butene and the ieri-butyl cation which is the major C4 carbonium ion present.…”

Section: Resultsmentioning

confidence: 99%

“…They concluded that fragments smaller than Cg were derived from a C12 intermediate formed primarily from two molecules of isobutane and one molecule of olefin. Zimmerman et al (1962) studied the effect of the three butene isomers on product composition. They were particularly interested in dimethylhexane formation and postulated that 1 Present address, Virginia Polytechnic Institute, Blacksburg, Va.…”

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confidence: 99%

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Oligomerization of 1-Butene in Sulfuric Acid. Mechanisms and Rates

Naworski¹,

Harriott²

1969

Ind. Eng. Chem. Fund.

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The oligomerizstion of liquid 1 -butene catalyzed by concentrated sulfuric acid was studied in an adiabatic, capillary-flow reactor at 17.5" and 25" C. The reaction products were analyzed by gas-liquid chromatography. The maior products were 5-methyl-2-heptene, 5-methyl-1 -heptene, 2,2-dimethyl-3-hexene, and 5-methyl-3-heptene. Butene cgnsumption rates were calculated from axial temperature profiles measured by thermistors. The reaction rates per unit area of the butene drops were 0.98 X lod3 g. mole/ (min.)(sq. cm.) at 17.5" C. and 1.07 X

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Oligomerization of 1-Butene in Sulfuric Acid. Mechanisms and Rates

Naworski¹,

Harriott²

1969

Ind. Eng. Chem. Fund.

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“…Mais tarde um estudo mostrou que nas condições de operação de um reator de alquilação as reações de isomerização têm um papel bastante importante na composição do produto final. Estas podem inclusive exercer um papel mais importante que a composição de alimentação do reator (PETERSON et al, 1965;ZIMMERMAN et al, 1962). A primeira característica é facilmente especificada na seção de fracionamento através da remoção dos butanos por destilação.…”

Section: Mecanismo Da Reação De Alquilaçãounclassified

Modelagem matemática de um reator industrial de alquilação de butenos utilizando HF como catalisador.

Fiore¹

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Alkylation is the process which light hydrocarbons (like butenes and iso-bute) are transformed into heavier hydrocarbons, called alkylate. The alkylate demand as a gasoline component has been growing since the middle 90's, mostly due to more severe quality requirements for gasoline. This work proposes a mathematical model that accounts for the main chemical reactions for a HF Alkylation Unit. The alkylate yield and quality, described by its composition, are also represented as well. This model as based on mass and energy balances for the alkylation reactor, using the most accepted kinetic mechanism available at literature. The model constants were estimated by non-linear regression with available data from literature. The model validation was performed comparing the simulation results with data collected at an industrial Alkylation unit at Cubatão, Brazil, without further parameter adjustment. The results show a good model response for the consumption of reagents and alky yield. The model, however, underpredicts the yield of heavier fractions.

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Bibliography

Ettre¹

1965

Open Tubular Columns in Gas Chromatography

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Dimethylhexane Formation in Butene Alkylation

Cited by 7 publications

References 4 publications

Oligomerization of 1-Butene in Sulfuric Acid. Mechanisms and Rates

Oligomerization of 1-Butene in Sulfuric Acid. Mechanisms and Rates

Modelagem matemática de um reator industrial de alquilação de butenos utilizando HF como catalisador.

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