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US4255166A
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Process for the removal of particulates entrained in a fluid using a magnetically stabilized fluid cross-flow contactor
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1979-07-31
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Granted: 1981-03-10
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Expires: 1999-07-31
Abstract
Abstract A process for the removal of particulates entrained in a fluid using a magnetically stabilized fluid cross-flow contactor of the panel or radial reactor type wherein ferro-magnetic bed solids are structured or stabilized by the action of a magnetic field.
Inventors
- 👤 Martin O. Gernand
- 👤 Francis X. Mayer
- 👤 Vincent Siminski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:31
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/42; B01D; B01D46/00; B01D46/30; B01D46/32; B01D53/00; B01D53/02; B01D53/06; B01D53/08; B01D53/34; B01D53/46; B01D53/48; B01F; B01F33/00; B01F33/45; B01F33/451; B01J8/02; B01J8/0207; B01J8/08; B01J8/12; B01D2251/00; B01D2251/40; B01D2251/404; B01D2251/60; B01D2251/602; B01D2253/00; B01D2253/10; B01D2253/104; B01D2253/112; B01D2253/1124; B01D2253/25; B01D2253/30; B01D2253/302; B01D2253/304; B01D2253/306; B01D2257/00; B01D2257/30; B01D2257/302; B01D2257/40; B01D2257/404; B01D2258/00; B01D2258/02; B01D2258/0283; B01D2259/00; B01D2259/40; B01D2259/40011; B01D2259/40077; B01D2259/40081; B01D2259/40083; B01D2259/40088; B01D2259/4009
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
91 words
A process for the removal of particulates entrained in a fluid, said process comprising the steps: (a) continuously introducing and removing a bed comprising a particulates capture medium through at least one porous chamber in a descending manner or direction, said bed comprising a particulates capture medium comprises a plurality of solid, discrete magnetizable particles; (b) structuring and controlling the porosity in said bed by applying a magnetic field to said bed in a manner such that the magnetic field is substantially colinear with the external force field within said chamber;
Claim 2
Dependent Claim
91 words
A process for the removal of particulates entrained in a fluid, said process comprising the steps: (a) continuously introducing and removing a bed comprising a particulates capture medium through at least one porous chamber in a descending manner or direction, said bed comprising a particulates capture medium comprises a plurality of solid, discrete magnetizable particles; (b) structuring and controlling the porosity in said bed by applying a magnetic field to said bed in a manner such that the magnetic field is substantially colinear with the external force field within said chamber;
Claim 3
Dependent Claim
50 words
(c) passing a gas containing entrained particulates through said descending bed of particulate capture medium in a manner such that it has a velocity component substantially perpendicular to the external force field and the applied magnetic field within said chamber and withdrawing a gaseous stream substantially free of entrained particulates.
Claim 4
Dependent Claim
50 words
(c) passing a gas containing entrained particulates through said descending bed of particulate capture medium in a manner such that it has a velocity component substantially perpendicular to the external force field and the applied magnetic field within said chamber and withdrawing a gaseous stream substantially free of entrained particulates.
Claim 5
Dependent Claim
22 words
The process of claim 1 wherein the particulate capture medium is continuously withdrawn and recharged into said chamber in a periodic manner.
Claim 6
Dependent Claim
43 words
The process of claim 1 wherein the solid discrete magnetizable particles have a mean diameter particle size ranging from about 100 microns to about 1000 microns and the entrained particulates have a mean diameter particle size ranging from 0.01 to about 50 microns.
Claim 7
Dependent Claim
12 words
The process of claim 1 wherein said external force field is gravity.
Claim 8
Dependent Claim
12 words
The process of claim 1 wherein the bed additionally contains nonmagnetizable particles.
Claim 9
Dependent Claim
17 words
The process of claim 1 wherein the particles are a composite of magnetizable material and nonmagnetizable material.
Claim 10
Dependent Claim
14 words
The process of claim 1 wherein a plurality of particulate capture beds are used.
Claim 11
Dependent Claim
17 words
The process of claim 1 wherein the magnetized solid discrete magnetizable particles are characterized as being elongated.
Claim 12
Dependent Claim
25 words
The process of claim 1 wherein the entrained particulates have a mean diameter particle size within the range from about 0.01 to about 10 microns.
Claim 13
Dependent Claim
21 words
The process of claim 1 wherein the particulate solids are regenerated in a regenerator vessel connected to the particulate capture bed.
Claim 14
Dependent Claim
25 words
The process of claim 10 wherein the regenerator is a separate vessel selected from the group consisting of a cyclone mechanical separator or magnetic separator.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |