Method for the isomerization of gasoline with a high benzene content
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United States of America Patent
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Jul 9, 2002
Grant Date -
N/A
app pub date -
Mar 31, 1999
filing date -
Mar 31, 1998
priority date (Note) -
Expired
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Abstract
A method for the isomerization of a hydrocarbonic charge containing a substantial quantity of paraffin base hydrocarbons with 5 or 6 carbon atoms and a benzene content that is greater than or equal to 2% by weight, in which the charge to be treated passes, in the presence of hydrogen, at a total pressure greater than or equal to 10.10.sup.5 Pa (10 bars) and at an average temperature ranging between 100 and 200.degree. C., through at least one reactor (5) containing a catalyst. An adjunctive fluid is introduced in the upstream section of the reaction zone; a fluid that at 40.degree. C. and under atmospheric pressure (1.0134.10.sup.5 Pa), is in a gaseous phase and has a density that is less than or equal to that of the normal-pentane taken into account under the same conditions.
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