Method and apparatus for disposal of filter media

• US 5,340,464 A
• Filed: 09/08/1992
• Issued: 08/23/1994
• Est. Priority Date: 09/08/1992
• Status: Expired due to Fees

• Current Assignee: Atlantic Richfield Company (BP PLC)
• Original Assignee: Atlantic Richfield Company (BP PLC)
• Inventors: Mickas, Anthony
• Primary Examiner(s): MYERS, HELANE ELEANORA
• Application Number:
  US07/941,499
• Time in Patent Office: 714 Days
• Field of Search: 208/131, 208/127, 208/125, 208/132, 210/769, 201/8, 201/23
• US Class Current: 208/131
• CPC Class Codes: C10B 53/00 Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form wet carbonising of peat C10F
• CPC Class Codes: C10B 55/02 with solid materials

Abstract

A process for disposing of filter media is provided, which process comprises (a) mixing a filter media with a hydrocarbonaceous mixing stream to form a media-hydrocarbon mixture and (b) feeding said media-hydrocarbon mixture to a coking vessel. Preferred coking vessels include delayed cokers, fluidized cokers, and coke calciners. An apparatus for disposing of filter media is provided, which apparatus comprises (a) a coking vessel; (b) a mixer to mix the filter media with a hydrocarbonaeous mixing fluid to form a media- hydrocarbonaeous fluid mixture; and, (c) a feed means to feed the media-hydrocarbonaeous fluid mixture to the coking vessel. Preferably, the apparatus comprises a size reduction means to reduce the size of the filter media to form a media staple comprising fiber clusters having a desired shape and size.

Claims

1. A process for disposing of contaminated filter media comprising a hydrocarbon-based polymer or a natural cellulose or synthetic cellulose base, wherein a hydrocarbonaceous contaminant is deposited upon or entrained by said filter media, said process comprising:

a. mixing said filter media with a hydrocarbonaceous mixing fluid to form a media-hydrocarbon mixture; and

b. feeding said media-hydrocarbon mixture to a coking vessel for said mixture to be treated at high temperatures of coking vessel operations utilizing coking conditions to vaporize, carbonize, coke or polymerize said filter media.

2. A process in accordance with claim 1 wherein said coking vessel is a delayed coker.

3. A process in accordance with claim 1 wherein said coking vessel is a fluidized coker.

4. A process in accordance with claim 1 wherein said coking vessel is a coke calciner.

5. A process in accordance with claim 1 wherein said hydrocarbonaceous mixing fluid is a refinery feed or process stream selected from the group consisting of crude oil, desalted crude oil, reduced crude oil, atmospheric crude tower bottoms, vacuum tower bottoms, and residual oils having an initial boiling point per ASTM D86 greater than 550°

F.

6. A process in accordance with claim 1 wherein said filter media is subjected to size reduction to form a media staple.

7. A process in accordance to claim 1 wherein said media staple comprises fiber clusters having a length in the range of about 0.05 to about 0.1 inches and a diameter, or width and height, in the range of about 0.05 to about 0.1 inches.

8. A process in accordance with claim 1 wherein said filter media comprises a hydrocarbon-based polymer selected from the group consisting of polyesters, nylons, polyethylenes, polypropylenes, polybutylenes, and mixtures thereof.

9. A process in accordance with claim 1 wherein said filter media is removed from a media support.

10. A process in accordance with claim 1 wherein said filter media is removed from a filter cavity.