Method for passing a fluid through a moving bed of particles

Details Method for passing a fluid through a moving bed of particles Method for passing a fluid through a moving bed of particles

2007-07-10

2007-07-10

Caldarola, Glenn (Department: 1764)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

C208S134000, C208S139000, C208S146000, C208S171000, C208S173000, C422S139000, C422S211000, C422S216000, C585S654000, C585S920000, C585S921000

Reexamination Certificate

active

10983426

ABSTRACT:
A process for contacting a bed of particulate material, usually catalyst, with a transverse flow of fluid is disclosed. The particulate material moves or is prevented from not moving, while the fluid passes through the bed at a rate greater than the stagnant bed pinning flow rate. This invention is applicable to hydrocarbon conversion processes and allows for higher fluid throughput rates compared to prior art processes.

REFERENCES:
patent: 4110081 (1978-08-01), Millar et al.
patent: 4446112 (1984-05-01), Den Hartog
patent: 4478793 (1984-10-01), Vickers
patent: 4869808 (1989-09-01), Vora et al.
patent: 0 427 896 (1991-05-01), None
Doyle, F.J. et al.: “The Phenomenon of Pinning in an Annular Moving Bed Reactor with Crossflow of Gas” Chemical Engineering Science, Oxford, GB, vol. 41, No. 6, 1986, pp. 1485-1495, XP008038799 ISSN: 0009-2509.
Carson, J.W. et al. “Characterize Bulk Solids to Ensure Smooth Flow”Chemical Engineering, Apr. 1994, pp. 78-90.
Marinelli, J. et al. “Solve Solids Flow Problems in Bins, Hoppers, and Feeders”Chemical Engineering Progress, May 1992, pp. 22-28.
Ginestra, J.C. et al. “Pinning of a Bed of Particles in a Vertical Channel by a Cross Flow of Gas”Ind. Eng. Chem. Fundam. 1985, 24, pp. 121-128.
Jaeger, H.M. et al. “Physics of the Granular State”Science, vol. 255, No. 5051, Mar. 20, 1992, ISSN 0036-8075 pp. 1523-1531.
Savage, S.B. “Machanics of Granular Materials—New Models and Constitutive Relations”Studies in Applied Mechanics 7, Elsevier Science Publishing Co., Inc., New York, 1982, pp. 261-282.
Glanz, J. “Hidden in the Hopper: A Secret of Physics” The New York Times, Jan. 9, 2001, section F, p. 3, col. 1.

Affiliated with

Also associated with

Rating

Method for passing a fluid through a moving bed of particles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for passing a fluid through a moving bed of particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for passing a fluid through a moving bed of particles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3800176