Apparatus for facilitating sampling of particulate matter passing from one treatment zone to another
Patent 4567022 Issued on January 28, 1986. Estimated Expiration Date: 
December 24, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 24, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2440525 3652231 3692496 3706536 3786682 3838039 3882015 3907511 Catalyst sampling method Multiple-stage catalytic reforming with gravity-flowing dissimilar catalyst particles Patent #: 4167474 InventorAssigneeApplicationNo. 06/686053 filed on 12/24/1984US Classes:422/144, Including means to strip reaction mass from, or to regenerate, the particulate matter (including fluidized bed regenerators, per se)208/140, With recovery or reactivation of catalyst422/142, Sequentially arranged422/145, And means providing flow of particulate matter into or out of reaction chamber422/191, Superimposed reaction stages in single reaction chamber422/192, At least one reaction stage formed of fixed, annularly shaped bed of contact material and means directing reaction stream therethrough substantially perpendicular to longitudinal axis of bed422/223, With contact material regenerating means, per se, or combined with reactor73/863.81Withdrawing through conduit or receptacle wallExaminersPrimary: Chiesa, Richard L.Attorney, Agent or FirmInternational ClassesC10G 35/12 (20060101)C10G 35/00 (20060101) B01J 8/12 (20060101) B01J 8/08 (20060101) B01J 8/02 (20060101) AbstractApparatus 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.Field of SearchIncluding means to strip reaction mass from, or to regenerate, the particulate matter (including fluidized bed regenerators, per se)And means providing flow of particulate matter into or out of reaction chamber Sequentially arranged With contact material regenerating means, per se, or combined with reactor Superimposed reaction stages in single reaction chamber At least one reaction stage formed of fixed, annularly shaped bed of contact material and means directing reaction stream therethrough substantially perpendicular to longitudinal axis of bed Reaction stages located within single reaction chamber Particulate contact material type and means providing flow of particulate material into or out of reaction chamber with reactants or products Compact bed of particulate, fluid contact material and means providing gravity flow of material within bed | |
