Two-stage riser catalytic cracking process
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United States of America Patent
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Issued Date -
Aug 15, 2002
app pub date -
Dec 13, 2001
filing date -
Dec 13, 2000
priority date (Note) -
Abandoned
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Abstract
This invention relates to a new two-stage riser catalytic cracking process, particularly to an improvement of the conventional riser reactor and reaction-regeneration system by application of a two-stage riser reactor to fulfill the aims of the concatenation of oil-vapor, catalyst in relays as result in shortening reaction time and increasing average performance of the catalyst.
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