Automated catalyst regeneration in a reactor

Details Automated catalyst regeneration in a reactor Automated catalyst regeneration in a reactor

1983-04-25

1988-03-22

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Automatic analytical monitor and control of industrial process

422111, 422116, 422141, 422144, 436 55, B01J 818

Patent

active

047327375

ABSTRACT:
A technique, including an apparatus, for automatically regenerating a catalyst used in a process for obtaining a product in an exit stream from a raw material in a feed stream of a reactor, comprises determining the concentration of raw material in the feed and exit stream and obtaining a value for the catalyst selectively as a function of the difference between the concentrations. When a selected selectivity is reached, which is indicative of the need for the catalyst to be regenerated, regenerator equipment is activated for regenerating the catalyst in the reactor. To continue the process, the feed stream is transferred to an auxiliary reactor during regeneration of the primary reactor, which contains regenerated or fresh catalyst. When used in reactors for the hydrogenation of acetylene to ethylene, the concentration of hydrogen in the feed stream is also calculated with the selectivity equaling the concentration of hydrogen divided by the difference in concentrations for the acetylene in the feed and exit streams respectively.

REFERENCES:
patent: 2621113 (1952-12-01), Alther
patent: 2901414 (1959-08-01), Kelly
patent: 2924632 (1960-02-01), Baumann
patent: 3213014 (1965-10-01), Atkinson et al.
patent: 3656911 (1972-04-01), Hobbs
patent: 3707463 (1972-12-01), Harter et al.
patent: 4237093 (1980-12-01), McCoy
patent: 4282084 (1981-08-01), Gross et al.

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