Method for starting an FCC power recovery string
US4399651A · kind A · utility
19Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1981 |
| Grant date | Aug 23, 1983 |
| Priority date | — |
| Expiry date | May 28, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01K23/064
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.