Method and apparatus for starting an FCC power recovery string

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

1983-05-04

1984-06-05

Ostrager, Allen M.

Power plants

Motive fluid energized by externally applied heat

Having ancillary structure for starting

60646, 415 11, F01K 1302

Patent

active

044520484

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: 3292845 (1966-12-01), Hens et al.
patent: 4203701 (1980-05-01), Abbey
patent: 4230437 (1980-10-01), Bellinger et al.

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