Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including solid – extended surface – fluid contact reaction...
Patent
1984-06-18
1986-02-04
Lacey, David L.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Including solid, extended surface, fluid contact reaction...
422239, B01J 802
Patent
active
045685240
ABSTRACT:
A reactor for catalytically dewaxing a waxy distillate consisting of a lubricating oil or liquid petroleum feedstocks utilizing a shape-selective crystalline aluminosilicate zeolite catalyst in order to obtain a lubricating oil having a low pour point and a high viscosity index, and particularly, a hydroprocessing trickle reactor construction for catalytically dewaxing liquid petroleum feedstocks. The reactor is essentially constituted of a trickle bed reactor of the vertical tower type wherein an annular bed of catalyst material, such as the crystalline zeolite, substantially fills the space of the reactor, and through which the liquid petroleum feedstock trickles downwardly from the upper end of the reactor, while hydrogen is concurrently injected into a central hollow tube of a perforate material extending vertically through the reactor within the annular catalyst bed. The hydrogen, under a pressure somewhat higher than the pressure reigning in the catalyst bed, passes radially outwardly so as to axially flow through the catalyst material. This radial flow causes the hydrogen to percolate through the annular catalyst bed and to contact and efficiently strip the downwardly trickling stream of liquid petroleum feedstock of low boiling conversion products or waxy components, such as naphtha. The generated gases resulting from the reaction, such as hydrogen, naphtha and LPG, are collected in an annular space provided by a double-wall shell extending about the catalyst bed, with the inner wall being perforate, and are discharged through an outlet conduit communicating with the lower end of the reactor, while the dewaxes liquid components trickling down out of the catalyst bed are discharged through another bottom outlet of the reactor.
REFERENCES:
patent: 1995292 (1935-03-01), Clark
patent: 2315208 (1943-03-01), Kinnaird
patent: 3754078 (1973-08-01), Hinrichs et al.
patent: 4222855 (1980-09-01), Pelrine et al.
patent: 4244921 (1981-01-01), Tasior et al.
Gilman Michael G.
Lacey David L.
McKillop Alexander J.
Mobil Oil Corporation
Powers, Jr. James F.
LandOfFree
Hydroprocessing reactor for catalytically dewaxing liquid petrol does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydroprocessing reactor for catalytically dewaxing liquid petrol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydroprocessing reactor for catalytically dewaxing liquid petrol will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2339789