Fcc catalyst section control
Abstract
Abstract THE SPECIFIC DISCLOSURE PROVIDES FOR CONTROLLING A CATALYST SECTION OF A FLUID CATALYTIC CRACKING SYSTEM BY ADJUSTING THE FLOW RATE OF AN OXYGEN-CONTAINING GAS TO A REGENERATOR IN RESPONSE TO DEVIATION OF THE REGENERATOR DENSE BED TEMPERATURE FROM A PREDETERMINED DENSE BED TEMPERATURE, AND BY ADJUSTING THE PREDETERMINED REGENERATOR DENSE BED TEMPERATURE IN RESPONSE TO DEVIATION OF THE REACTOR TEMPERATURE FROM A PREDETERMINED REACTOR TEMPERATURE. FURTHER, THE REGENERATED CATALYST FLOW RATE IS ADJUSTED IN RESPONSE TO DEVIATION OF A MEASURED TEM- PERATURE DIFFERENCE BETWEEN THE REGENERATOR DENSE BED AND THE REGENERATOR FLUE GAS FROM A PREDETERMINED REGENERATOR DENSE BED AND REGENERATOR FLUE GAS TEMPERATURE DIFFERENCE. ALTERNATIVELY, THE REGENERATED CATALYST FLOW RATE IS ADJUSTED IN RESPONSE TO DEVIATION OF A MEASURED AMOUNT OF OXYGEN IN THE REGENERATOR FLUE GAS FROM A PREDETERMINED AMOUNT OF OXYGEN IN THE REGENERATOR FLUE GAS.
Inventors
- 👤 Michael D Harter
- 👤 Benedict Macfarlane
- 👤 Vern W Weekman Jr
Bibliographic Details
Claims Analysis
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