CATALYST CARTRIDGE

• US 3,857,680 A
• Filed: 11/01/1971
• Issued: 12/31/1974
• Est. Priority Date: 11/03/1970
• Status: Expired due to Term

• Current Assignee: Angelo Cantaluppi, Bruno Ferrario, Paolo Della Porta, Paolo Montalenti, Tiziano A. Giorgi
• Original Assignee: Angelo Cantaluppi, Bruno Ferrario, Paolo Della Porta, Paolo Montalenti, Tiziano A. Giorgi
• Inventors: Porta, Paolo Della, Giorgi, Tiziano A., Cantaluppi, Angelo, Ferrario, Bruno, Montalenti, Paolo
• Primary Examiner(s): Scovronek, Joseph
• Application Number:
  US05/194,445
• Time in Patent Office: 1,156 Days
• Field of Search: 23/288R,288US,288F,288K,288H,288L,288M 252/477R 29/191,157.3R,157.3A,157.3BUS 165/179 113/116Y,118B
• US Class Current: 422/200
• CPC Class Codes: B01J 12/007 in the presence of catalytically active bodies, e.g. porous plates
• CPC Class Codes: B01J 2208/00814 the particulate material being provides in prefilled containers
• CPC Class Codes: B01J 2219/185 vertical
• CPC Class Codes: B01J 2219/2455 Plates arranged radially
• 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: C07D 301/10 with catalysts containing silver or gold
• CPC Class Codes: F01N 3/2807 Metal other than sintered metal F01N3/2832 and F01N3/2835 take precedence
• CPC Class Codes: Y10T 29/49345 Catalytic device making
• CPC Class Codes: Y10T 428/1225 Symmetrical

Abstract

An arcuately bent, folded catalytic structure having catalyst particles affixed to the surface of thin metallic sheets, the edges of the sheets being thermally adjacent to a source or sink for heat to conduct heat between the catalyst particles and the sink or source to help maintain the catalyst particles in thermal equilibrium.

Claims

1. A CATALYST STRUCTURE COMPRISING:

A. A THIN SHEET HAVING TWO OPPOSITE SIDES AND BEING FORMED OF A METAL OF GIVEN HARDNESS, B. A GREAT PLURALITY OF CATALYST PARTICLES HAVING A HARDNESS GREATER THAN SAID GIVEN HARDNESS AND BEING PARTIALLY EMBEDDED IN A SURFACE ON EACH OF SAID TWO OPPOSITE SIDE OF SAID SHEET, C. SAID SHEET BEING FOLDED TO FORM A PLURALITY OF SMALLER SHEETS JOINED AT EDGES OF SAID SMALLER SHEETS TO ADJACENT SMALLER SHEETS TO FORM RADIALLY DIPOSED SEGMENTS OF SAID SMALLER SHEETS WHICH ARE ALL ARCUATELY BENT IN THE SAME DIRECTION, WHEREBY ALTERNATE EDGES OF SAID SMALLER SHEETS FORM OUTER EDGES AND

2. A catalyst structure according to claim 1 wherein said mass further comprises:

A. an outer sleeve having a substantially cylindrical inner surface, B) an inside support having a substantially cyclindrical outer surface, said folded sheet being arranged within said outer sleeve with each of said smaller sheets having one edge thermally adjacent to said outer sleeve

3. A catalyst structure according to claim 2 wherein said sleeve is provided with a gap in a split section of the sleeve, whereby the sleeve can be slightly compressed.

4. a catalytic structure according to claim 2 wherein said substantially cylindrical inside surface is grooved to receive the edges of said smaller sheets in close thermal contact.

5. A catalyst structure according to claim 1 wherein said mass further comprises:

A. an outer sleeve having a substantially cylindrical inner surface, and B. means for conveying a fluid of a suitable temperature for exchanging heat with said outer sleeve, said folded sheet being arranged in thermal contact with said outer sleeve for said conductive exchange of heat.

6. A catalyst structure according to claim 1, wherein said mass comprises a plurality of rings thermally adjacent to at least some of said edges, said rings being split to allow said rings to be slightly compressed.

7. A catalyst structure according to claim 1 wherein said mass further comprises:

A. an outer sleeve having a substantially cylindrical inner surface, and the said catalyst structure further comprises;

B. an inside support having a subtantially cylindrical outer surface, wherein said radially disposed segments are placed between the outer sleeve and inside support whereby alternate edges of the smaller sheets form outer edges and the remaining edges form inner edges so that at least some of the outer edges are in contact with said inner surface of the outer sleeve and at least some of the inner edges are in contact with said outer surface of the inside support.

8. a catalyst structure comprising a folded sheet having a great plurality of catalyst particles partially embedded in the surface of the sheet wherein the sheet is folded along lines which are parallel to one another and are perpendicular to the running length of the sheet wherein said lines define radially disposed segments of the sheet which are all arcuately bent in the same direction, whereby said radially disposed segments of the folded sheet are formed into a generally cylindrical shape, the outer extremities of which are in thermal contact with the smooth inner wall of a heat exchanger tube.

9. A catalyst structure comprising:

A. a thin metal sheet folded to form radially disposed segments which are attached to each other at their edges and arcuately bent in the same direction, B. a plurality of catalyst particles embedded in the thin metal sheet, and C. a heat exchanger encircling the radially disposed segments whereby the heat exchanger is in thermal contact with the radially disposed segments.

10. A catalyst structure comprising:

A. A thin metal sheet folded to form arcuately bent radially disposed segments which are attached to each other at their edges, B. a plurality of catalyst particles embedded in the thin metal sheet, and C. a heat exchanger encircling the radially disposed segments whereby the heat exchanger is in thermal contact with the radially disposed segments.