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Title: Alkylation of isobutane by ethylene: A thermodynamic study

Abstract

Alkylation of isobutane by ethylene produces mainly hexanes, but a variety of other compounds, alkanes or alkenes, may be formed by secondary reactions such as successive alkylations, isomerization, and ethylene polymerization. The equilibrium distribution of products is evaluated in the temperature range 280--680 K and at various initial compositions and pressures. Isomer groups are treated using Alberty's formulation. Calculations show that alkenes are thermodynamically unstable under usual reaction conditions. The equilibrium amounts of alkanes are such that C[sub 6] [much gt] C[sub 8] [much gt] C[sub 10] and heavy alkanes also appear unstable. The selective formation of particular isomers (dimethylbutanes, trimethylpentanes) is also integrated in the equilibrium equations. The calculated compositions (C[sub 6]:C[sub 8]:C[sub 10]) are compared with experimental data.

Authors:
; ;  [1]
  1. (Univ. of Caen (France). Lab. Catalyse et Spectrochimie)
Publication Date:
OSTI Identifier:
7207914
Resource Type:
Journal Article
Journal Name:
Industrial and Engineering Chemistry Research; (United States)
Additional Journal Information:
Journal Volume: 33:3; Journal ID: ISSN 0888-5885
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; BUTANE; ALKYLATION; CATALYSTS; CHEMICAL REACTION KINETICS; EXPERIMENTAL DATA; KINETIC EQUATIONS; REACTION INTERMEDIATES; THERMODYNAMICS; ALKANES; CHEMICAL REACTIONS; DATA; EQUATIONS; HYDROCARBONS; INFORMATION; KINETICS; NUMERICAL DATA; ORGANIC COMPOUNDS; REACTION KINETICS; 020400* - Petroleum- Processing

Citation Formats

Goupil, J.M., Poirier, J.L., and Cornet, D. Alkylation of isobutane by ethylene: A thermodynamic study. United States: N. p., 1994. Web. doi:10.1021/ie00027a033.
Goupil, J.M., Poirier, J.L., & Cornet, D. Alkylation of isobutane by ethylene: A thermodynamic study. United States. doi:10.1021/ie00027a033.
Goupil, J.M., Poirier, J.L., and Cornet, D. Tue . "Alkylation of isobutane by ethylene: A thermodynamic study". United States. doi:10.1021/ie00027a033.
@article{osti_7207914,
title = {Alkylation of isobutane by ethylene: A thermodynamic study},
author = {Goupil, J.M. and Poirier, J.L. and Cornet, D.},
abstractNote = {Alkylation of isobutane by ethylene produces mainly hexanes, but a variety of other compounds, alkanes or alkenes, may be formed by secondary reactions such as successive alkylations, isomerization, and ethylene polymerization. The equilibrium distribution of products is evaluated in the temperature range 280--680 K and at various initial compositions and pressures. Isomer groups are treated using Alberty's formulation. Calculations show that alkenes are thermodynamically unstable under usual reaction conditions. The equilibrium amounts of alkanes are such that C[sub 6] [much gt] C[sub 8] [much gt] C[sub 10] and heavy alkanes also appear unstable. The selective formation of particular isomers (dimethylbutanes, trimethylpentanes) is also integrated in the equilibrium equations. The calculated compositions (C[sub 6]:C[sub 8]:C[sub 10]) are compared with experimental data.},
doi = {10.1021/ie00027a033},
journal = {Industrial and Engineering Chemistry Research; (United States)},
issn = {0888-5885},
number = ,
volume = 33:3,
place = {United States},
year = {1994},
month = {3}
}