Process for catalytic upgrading light petroleum hydrocarbons accompanied by low temperature regenerating the catalyst
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United States of America Patent
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Issued Date -
Jun 19, 2003
app pub date -
May 29, 2002
filing date -
May 30, 2001
priority date (Note) -
Abandoned
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Abstract
This invention relates to a process for catalytically upgrading light petroleum hydrocarbons accompanied by low temperature regenerating the catalyst, which comprises injecting the light petroleum hydrocarbons into a catalytic cracking reactor, contacting the light petroleum hydrocarbons with a regenerated catalyst and carrying out the reaction, separating the reaction products regenerating the stripped catalyst for 10 to 50 minutes under the regeneration conditions of a temperature of 400 to 600.degree. C. and a pressure of 0.1 to 0.6Mpa; recycling the regenerated catalyst into the reactor. The process of the present invention can reduce the olefin content of gasoline, increase the cetane number of diesel oils, and decrease the contents of sulfur and nitrogen to some extent.
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