Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including solid – extended surface – fluid contact reaction...
Patent
1987-11-04
1989-11-14
Richman, Barry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Including solid, extended surface, fluid contact reaction...
34165, 34168, 34174, 208140, 208165, 422216, 422218, 422219, 422223, 422239, B01J 812, B01J 2390
Patent
active
048806048
ABSTRACT:
Method and apparatus for effecting treatment needed to regenerate spent hydrocarbon conversion catalyst. The invention may be termed a variable gas flow catalyst bed. Catalyst particles in a vertically-elongated movable bed are contacted with a hot oxygen-containing gas stream in order to remove, by means of combustion, coke which accumulated on the catalyst particles while they were used in a hydrocarbon conversion zone. The catalyst particles are confined in the bed by means of catalyst retention screens. The catalyst retention screens are configured such that gas flow through the bed varies from a maximum at the top of the bed to a minimum at the bottom of the bed. The variation in gas flow is accomplished by varying the size of gas flow apertures in the retention screens from a maximum at the top of the bed to a minimum at the bottom of the bed. The varying gas flow pattern results in the delivery of oxygen in a manner which more closely matches the oxygen requirement for combustion at each point in the bed, thus increasing the coke burning capacity of the bed. Catalytic reforming is an example of a hydrocarbon conversion process in which the invention may be advantageously employed.
REFERENCES:
patent: 2046458 (1936-07-01), Johnson
patent: 3027244 (1962-03-01), Byrne et al.
patent: 3362231 (1972-03-01), Greenwood et al.
patent: 3647680 (1972-03-01), Greenwood et al.
patent: 3692496 (1971-04-01), Greenwood et al.
patent: 3745112 (1973-07-01), Rausch
patent: 3838038 (1974-09-01), Greenwood et al.
patent: 3978150 (1976-08-01), McWilliams, Jr.
patent: 4096911 (1978-06-01), Geske
patent: 4276265 (1981-06-01), Gillespie
patent: 4321234 (1982-03-01), Ohsaki et al.
patent: 4438288 (1984-03-01), Imai et al.
patent: 4506032 (1985-03-01), Imai et al.
McBride Thomas K.
Richman Barry S.
Santiago Amalia L.
Tolomei John G.
UOP
LandOfFree
Apparatus for coke burning in regeneration of hydrocarbon conver 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 for coke burning in regeneration of hydrocarbon conver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for coke burning in regeneration of hydrocarbon conver will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1851855