Method for starting an FCC power recovery string

Details Method for starting an FCC power recovery string Method for starting an FCC power recovery string

1981-05-28

1983-08-23

Casaregola, L. J.

Power plants

Combustion products used as motive fluid

60 39141, F02G 300, F02C 726

Patent

active

043996515

ABSTRACT:
The load on the starting steam turbine or motor which drives the power recovery string of an FCC process is reduced on the order of 15% by increasing the specific volume of the air compressed by a fixed volume compressor in the string. The specific volume of the ambient air is increased by returning a portion of the compressed and thereby heated air to the inlet of the compressor in amounts sufficient to raise the temperature of the inlet air about 75.degree. F., or more.

REFERENCES:
patent: 3047210 (1962-07-01), Best
patent: 3076769 (1963-02-01), Pfeiffer
patent: 3473727 (1969-10-01), Eastman
patent: 4230437 (1980-10-01), Bellinger et al.
patent: 4248055 (1981-02-01), Day et al.

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