Apparatus for facilitating sampling of particulate matter passin

Details Apparatus for facilitating sampling of particulate matter passin Apparatus for facilitating sampling of particulate matter passin

1984-12-24

1986-01-28

Chiesa, Richard L.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

7386381, 208140, 422142, 422145, 422191, 422192, 422223, B01J 3842

Patent

active

045670226

ABSTRACT:
Apparatus for transferring particulate contact material by gravity from an upper contact zone wherein it is contacted by a first gas flowing radially, to a lower zone wherein it is contacted by a second gas flowing upwardly. The apparatus includes a generally annular transition zone which connects the upper and lower zones. The transition zone effectively isolates the second gas from contacting the particulate material in the upper zone. In a preferred embodiment in the form of a catalyst regenerator, catalyst particles can be sampled for carbon level in the transition zone to determine if the carbon burn-off therefrom is sufficiently complete in an upper radial flow regenerator bed by contact with a first gas, having a relatively low oxygen level. The sampling can be done on stream, even though a second gas, such as relatively oxygen-rich halogenation gas, is passing up through the catalyst in the lower zone.

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patent: 3907511 (1975-09-01), Forbes et al.
patent: 3973440 (1976-08-01), Vande Ven et al.
patent: 4167474 (1979-09-01), Sikonia

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