Process and apparatus for the continuous replacement of the cata

Details Process and apparatus for the continuous replacement of the cata Process and apparatus for the continuous replacement of the cata

1992-07-10

1996-04-30

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

208146, 208147, 208176, 208134, 208 58, 208 59, 208 62, 208 89, 208 92, C10G 3512

Patent

active

055121667

ABSTRACT:
A process for the simultaneous replacement of a first catalyst by a second catalyst which first catalyst is circulating as a moving bed of solid particles in a hydrocarbon treating unit, which unit comprises at least one processing reactor. The first catalyst is withdrawn downstream of the reactor, or of each reactor, in the direction of catalyst circulation. The second catalyst is simultaneously injected upstream of the reactor or of each reactor. The bulk density of the material withdrawn downstream of the reactor, or of each reactor, is measured continuously. The withdrawal of the first catalyst and the injection of the second catalyst into the reactor concerned are interrupted when the bulk density so measured is equal to that of the second catalyst.

REFERENCES:
patent: 2596748 (1952-05-01), Watson et al.
patent: 2851402 (1958-09-01), Haddad
patent: 2880170 (1959-03-01), Savoca et al.
patent: 2882912 (1959-04-01), Reeg et al.
patent: 2886210 (1959-05-01), Cooper et al.
patent: 3470090 (1969-09-01), Carson
patent: 3547809 (1970-12-01), Ehrlich et al.
patent: 3850582 (1974-11-01), Luckenbach
patent: 3873441 (1975-03-01), Jones
patent: 4744887 (1988-05-01), Van Driesen et al.
patent: 4875995 (1989-10-01), Van Driesen et al.
patent: 5021147 (1991-06-01), Van Driesen
patent: 5076908 (1991-12-01), Strangeland
patent: 5081039 (1992-01-01), Bullke et al.
patent: 5190638 (1993-03-01), Swan, III
patent: 5190639 (1993-03-01), Swart et al.

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