Process for the production of hydrocarbons with a high octane number by means of the selective dimerization of isobutene with acid catalysts
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United States of America Patent
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Dec 31, 2002
Grant Date -
Jan 3, 2002
app pub date -
Jan 18, 2001
filing date -
May 26, 2000
priority date (Note) -
Expired
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Abstract
A process is described for the production of hydrocarbons with a high octane number starting from hydrocarbon cuts containing isobutene by means of selective dimerization with acid catalysts, characterized in that the dimerization reaction is carried out in a tubular reactor using a feeding containing isobutene in quantities of less than 20% by weight and with a molar ratio linear olefins/isobutene greater than 3, preferably operating at a reaction temperature ranging from 30 to 120.degree. C., at a pressure of less than 5 MPa and at feeding space velocities of less than 60 h.sup.-1.
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