Control system for the quantification of the quality of fluidiza

Details Control system for the quantification of the quality of fluidiza Control system for the quantification of the quality of fluidiza

1988-02-16

1991-09-10

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Automatic analytical monitor and control of industrial process

422110, 422111, 422140, 436 55, 570243, C07C 17156, G01N 3110, G05D 700

Patent

active

050472097

ABSTRACT:
The operation of a fluid-bed reactor in which the catalyst has a proclivity to stickiness deleterious to efficiently carrying out a reaction of the gaseous components fed to the reactor, is controlled by monitoring the fluctuations in temperature at various locations in the bed, and computing the standard deviation of temperature at predetermined intervals of time. When the fluid-bed consists essentially of a supported catalyst performing at peak efficiency, near which it has a proclivity to "stickiness", slight fluctuations, less than 1.degree. F., of operating temperature are correlatable to the quality of fluidization and the risk of an uncontrollable upset in the reactor.

REFERENCES:
patent: 3350915 (1967-11-01), Staffin
patent: 3892816 (1975-07-01), Kister
patent: 4226798 (1980-10-01), Cowfer et al.
patent: 4329527 (1982-05-01), Kuhn et al.
patent: 4339620 (1982-07-01), Cowfer et al.
patent: 4446249 (1984-05-01), Eden
patent: 4708812 (1987-11-01), Hatfield
patent: 4801572 (1989-01-01), Hsieh

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