Catalytic cartridge

• US 3,890,104 A
• Filed: 05/03/1972
• Issued: 06/17/1975
• Est. Priority Date: 11/03/1970
• Status: Expired due to Term

• Current Assignee: Angelo Cantaluppi, Bruno Ferrario, Fiziano A. Giorgi, Paolo Della Porta, Paolo Montalenti
• Original Assignee: Angelo Cantaluppi, Bruno Ferrario, Fiziano A. Giorgi, Paolo Della Porta, Paolo Montalenti
• Inventors: Ferrario, Bruno, Cantaluppi, Angelo, Montalenti, Paolo, Porta, Paolo Della, Giorgi, Fiziano A.
• Primary Examiner(s): Scovronek, Joseph
• Application Number:
  US05/249,771
• Time in Patent Office: 1,140 Days
• Field of Search: 23/288R,288L,288M,288F,288K,288H,288 (U.S./ only)/ 252/477R 29/191,157.3R,157.3A,157.3B 113/116Y,118B 165/179
• US Class Current: 422/654
• CPC Class Codes: B01J 12/007 in the presence of catalytically active bodies, e.g. porous plates
• CPC Class Codes: B01J 19/249 Plate-type reactors
• CPC Class Codes: B01J 2208/00212 Plates; Jackets; Cylinders
• CPC Class Codes: B01J 2208/00814 the particulate material being provides in prefilled containers
• CPC Class Codes: B01J 2219/00085 Plates; Jackets; Cylinders
• CPC Class Codes: B01J 2219/185 vertical
• CPC Class Codes: B01J 2219/2455 Plates arranged radially
• CPC Class Codes: B01J 2219/2462 the reactants being in indirect heat exchange with a non reacting heat exchange medium
• CPC Class Codes: B01J 2219/2479 Catalysts coated on the surface of plates or inserts
• CPC Class Codes: B01J 2219/2482 Catalytically active foils; Plates having catalytically activity on their own
• CPC Class Codes: B01J 2219/2485 Metals or alloys
• CPC Class Codes: B01J 2219/32466 comprising catalytically active material
• CPC Class Codes: B01J 2219/32475 involving heat exchange
• CPC Class Codes: B01J 23/50 Silver
• CPC Class Codes: B01J 35/00 Catalysts, in general, characterised by their form or physical properties
• CPC Class Codes: B01J 35/30 characterised by their physical properties
• CPC Class Codes: B01J 8/067 Heating or cooling the reactor B01J8/062 takes precedence
• CPC Class Codes: F01N 3/2807 Metal other than sintered metal F01N3/2832 and F01N3/2835 take precedence
• CPC Class Codes: F01N 3/2814 all sheets, plates or foils being corrugated
• CPC Class Codes: Y10S 428/935 Electroplating
• CPC Class Codes: Y10T 29/49345 : Catalytic device making
• CPC Class Codes: Y10T 428/12333 : Helical or with helical component
• CPC Class Codes: Y10T 428/12354 : Nonplanar, uniform-thickness material having symmetrical channel shape or reverse fold [e.g., making acute angle, etc.]
• CPC Class Codes: Y10T 428/12736 : Al-base component
• CPC Class Codes: Y10T 428/12896 : Ag-base component

Abstract

A catalytic cartridge formed of a strip folded alternately in opposite directions such that the strip comprises a plurality of members. Each member comprises a first spirated segment, an outer circumferential segment, a second spirated segment, and an inner circumferential segment. The inner circumferential segment of any given member is attached to the first spirated segment of the next member. A catalytic material is carried by the strip.

Claims

1. A CATALYTIC CARTRIDGE FORMED OF A METAL STRIP FOLDED ALTERNATELY IN OPPOSITE DIRECTIONS SUCH THAT THE STRIP COMPRISES A PLURALITY OF MEMBERS EACH COMPRISING:

A. A FIRST SPIRATED SEGMENT, B. AN OUTER CIRCUMFERENTIAL SEGMENT ATTACHED TO THE FIRST SPIRATED SEGMENT, C. A SECOND SPIRATED SEGMENT ATTACHED TO THE OUTER CIRCUMFERRENTIAL SEGMENT, D. AN INNER CIRCUMFERENTIAL SEGMENT ATTACHED TO THE SECOND SPIRATED SEGMENT, WHEREIN THE INNER CIRCUMFERENTIAL SEGMENT OF ANY GIVEN MEMBER IS ATTACHED TO THE FIRST SPIRATED SEGMENT OF THE NEXT MEMBER, WHEREIN A CATALYTIC MATERIAL IS CARRIED BY THE STRIP.

2. which is curved,

3. The catalytic cartridge of claim 1 further comprising a sleeve wherein the outer circumferential segments contact the inner wall of the cylindrical sleeve along substantially all of the outer surface of each circumferential segment.

4. wherein the second spirated segment lies between the chord and the radius, D. an inner circumferential segment attached to the second spirated segment along their common fold line, said inner circumferential segment maintaining a separation between the second spirated segment of one member and the first spirated segment of the next adjacent member, wherein the inner circumferential segment of any given member is attached to the first spirated segment of the next member, wherein a catalytic material is carried by the strip, wherein the outer walls of the outer circumferential segments of the members describe an interrupted cylindrical surface comprising the outer periphery of the cartridge, wherein the inner circumferential segments describe a circle, wherein adjacent walls of first and second spirated segments contact each other in the vicinity of their contiguous inner circumferential segments, said method comprising the steps of:

I. providing transverse fold lines along a strip wherein the distance between a reference fold line and the first fold line corresponds to the length of the first spirated segment wherein the distance between the first fold line and the second fold line corresponds to the length of the outer circumferential segment, wherein the distance between the third fold line and the fourth fold line corresponds to the length of the second spirated segment, wherein the distance between the third fold line and the fourth fold line corresponds to the length of the inner circumferential segment, II. curving the first and second spirated segments in opposite directions wherein the first spirated segment is curved outwardly in a direction opposite to the side of the strip containing the first and second fold lines, wherein the second spirated segment is curved outwardly a direction the same as the side of the strip containing the first and second fold lines, III. folding the first and second lines such that the curves of the first and second spirated segments lie approximately parallel to one another, IV. folding the third and fourth fold lines in a direction opposite to that of the first and second fold lines, V. forming the folded members into a circle by contacting the first and second spirated segments with each other in the vicinity of their contiguous inner circumferential segments.

5. The cartridge of claim 1 wherein the catalytic material is carried by the strip by having the catalytic material in the form of particles adhering to the strip.

6. The cartridge of claim 1 wherein the catalytic material is the strip itself and comprises an alloy.

7. A shell and tube heat exchanger having a plurality of the catalytic cartridges of claim 1 in the tubes thereof.

8. A catalytic cartridge formed of a metal strip folded alternately in opposite directions along fold lines perpendicular to the running length of the strip such that the strip comprises a plurality of members each comprising:

A. a first spirated segment

9. A method for producing a catalytic cartridge formed of a metal strip folded alternately in opposite directions such that the strip comprises a plurality of members each comprising:

A. a first spirated segment;

B. an outer circumferential segment attached to the first spirated segment;

C. a second spirated segment attached to the outer circumferential segment;

D. an inner circumferential segment attached to the second spirated segment;

wherein the inner circumferential segment of any given member is attached to the first spirated segment of the next member, wherein a catalytic material is carried by the strip, said method comprising the steps of;

I. providing the strip with transverse fold lines, the distance between the fold lines corresponding to the segments, II. curving those segments of the strip corresponding to the first and second spirated segments, III. folding the strip along its fold lines, IV. forming the inner circumferential segments into a circle.

10. A method for producing a catalytic cartridge formed of a metal strip alternately in opposite directions along fold lines perpendicular to the running length of the strip such that the strip comprises a plurality of members each comprising:

A. a first spirated segment