Mineral oils: processes and products – Chemical conversion of hydrocarbons – Solids contacting and mixing
Patent
1985-11-25
1988-04-19
Lacey, David L.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Solids contacting and mixing
208153, 422140, 422145, 422213, 422215, 422219, 422232, 406 45, 406 84, 406 96, 406142, 406146, 406153, 406197, C10G 3512, C10G 3514, F27B 1509
Patent
active
047387700
ABSTRACT:
A process and apparatus of preventing the plugging of the discharge and/or suction line of an internal recycle pump utilized in an expanded bed reactor of the type having a partition transversely extending through the lower portion thereof and defining a plurality of substantially regularly and uniformly disposed perforations and communicating with a reaction zone above the partition and plenum chamber therebelow. The reaction zone contains a mass of particulate catalyst contact matter supported by the partition and placed in randon motion above the partition by a pressurized mixture of a liquid carbon containing material and a hydrogen rich gas flow passing through the perforations from the plenum chamber and by the internal recycle pump having a pump suction line generally concentrically disposed with respect to the reactor and extending through the partition into the reaction zone. The pump has a discharge communicating with the plenum chamber and is situated in the bottom of the reactor and has an exterior surface which extends into the atmosphere. The pump functionally recycles the liquid carbon containing material from the reaction zone through the recycle pump discharge into the plenum chamber and through the perforations in the partition. The improvement comprises extending a first catalyst withdrawal line from the pump suction line into the atmosphere to withdraw catalyst matter and prevent plugging with particulate catalyst contact matter of the recycle pump discharge and/or the suction line.
REFERENCES:
patent: 3188286 (1965-06-01), Driesen
patent: 3288567 (1966-11-01), Graham
patent: 3336217 (1967-08-01), Meaux
patent: 3523763 (1970-08-01), Driesen et al.
patent: 3698876 (1972-10-01), Gregoli et al.
patent: 4221653 (1980-09-01), Chervenak et al.
Hastings Kenneth E.
Trimble Harold J.
Carpenter John W.
Cities Service Oil and Gas Corp.
Lacey David L.
LandOfFree
Apparatus and method of removal of catalyst blockage from reacto does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method of removal of catalyst blockage from reacto, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method of removal of catalyst blockage from reacto will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2173771