NPRA (National Petroleum Refiners Association) Q and A--2. NPRA session focuses on fluid catalytic cracking (FCC) hardware
Questions and answers (Q and A) reported from an NPRA Session (Dallas 10/10-13/78) include the heat-of-cracking values to be used for heat balance; the use of carbon steel reactors; the use of multifeed injection points on the riser for dissimilar feeds; minimum reactor temperature for continuous and for short-term operation; ethane and methane yields with pure riser cracking; equilibrium catalyst activity limitations in high regenerator bed temperature operations; overpressure protection of FCC regenerators; the injection of equilibrium catalyst in the flue gas line to scour waste gas heat exchangers; precautions taken during flow reversals in downstream carbon monoxide boilers and precipitators; causes of catalyst flow stoppage in the FCC regenerator standpipe; improving the FCC regenerator air distribution system; corrosion of blades in power recovery expander turbines due to excess flue gas oxygen and the effect of such power recovery on combustion in CO boilers; and warping and weld cracking in stainless steel pipe grids for FCC regenerators.
- OSTI ID:
- 6732887
- Journal Information:
- Oil Gas J.; (United States), Journal Name: Oil Gas J.; (United States) Vol. 77:12; ISSN OIGJA
- Country of Publication:
- United States
- Language:
- English
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