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US3849075A Expired / Lapsed US ⏱️ 0.0 years remaining

Cracking reactor

Assignee: Union Carbide Corp
•
Filing: 1973-05-14
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Granted: 1974-11-19
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Expires: 1993-05-14
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Abstract

Abstract A reactor adapted for the cracking of hydrocarbons with hot gas comprising: A. a circular convex lens shaped hollow structure having (i) two walls, which are joined at their peripheries to form the structure, at least one of said walls being provided with an orifice disposed substantially centrally therein; and (ii) at least one hollow inlet feed chamber open at both ends passing through a wall of the structure, one end of said feed chamber being disposed in the interior of the structure at about the juncture of the walls in such a manner that vapor, which is passed through said chamber, will flow substantially tangentially to the juncture, provided that the rate of flow is sufficient therefor, creating a vortex-like flow within the structure; and B. at least one hollow tube open at both ends; WHEREIN: A. ONE END OF THE TUBE IS CONNECTED TO THE STRUCTURE AT ITS ORIFICE IN SUBSTANTIALLY CONCENTRIC ALIGNMENT THEREWITH AND IN OPEN COMMUNICATION WITH THE STRUCTURE; B. THE RATIO OF THE LENGTH OF THE STRUCTURE MEASURED ALONG A THEORETICAL AXIS, WHICH JOINS THE CENTER POINTS OF THE WALLS, TO THE DIAMETER OF THE STRUCTURE MEASURED ACROSS A THEORETICAL PLANE PERPENDICULAR TO THE THEORETICAL AXIS AND BISECTING THE STRUCTURE IS ABOUT 0.05:1 TO ABOUT 1:1; C. THE RATIO OF THE EQUIVALENT DIAMETER OF THE ORIFICE OF THE STRUCTURE TO THE EQUIVALENT DIAMETER OF THE TUBE IS ABOUT 1:1 TO ABOUT 0.1:1. D. THE TUBE HAS A LENGTH TO EQUIVALENT DIAMETER RATIO OF ABOUT 5:1 TO ABOUT 200:1; AND E. THE RATIO OF THE VOLUME OF THE STRUCTURE TO THE VOLUME OF THE TUBE IS ABOUT 0.01:1 TO ABOUT 5:1.

Inventors

  • 👤 C Albright
  • 👤 G Keller

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 16:57
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/24; B01J19/2415; B01J19/2405; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00157; B01J2219/00159; B01J2219/00164; B01J2219/00166; B01J2219/19; B01J2219/194; B01J2219/1941; B01J2219/1942; C; C10; C10G; C10G2400/00; C10G2400/20; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10S585/924; Y10S585/925

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 280 words
A REACTOR ADAPTED FOR THE CRACKING OF HYDROCARBONS WITH HOT GAS COMPRISING: A. A CIRCULAR CONVEX LES SHAPED HOLLOW STRUCTURE HAVING (I) TWO WALLS, WHICH ARE JOINED AT THEIR PERIPHERIES TO FORM THE STRUCTURE, AT LEAST ONE OF SAID WALLS BEING PROVIDED WITH AN ORIFICE DISPOSED SUBSTANTIALLY CENTRALLY THEREIN; AND (ii9 AT LEAST ONE HOLLOW INLET FEED CHAMBER OPEN AT BOTH ENDS PASSING THROUGH A WALL OF THE STRUCTURE, ONE END OF SAID FEED CHAMBER BEING DISPOSED IN THE INTERIOR OF THE STRUCTURE AT ABOUT THE JUNCTURE OF THE WALLS IN SUCH A MANNER THAT VAPOR, WHICH IS PASSED THROUGH SAID CHAMBER, WILL FLOW SUBSTANTIALLY TANGENTIALLY TO THE JUNCTURE, PROVIDED THAT THE RATE OF FLOW IS SUFFICIENT THEREFOR, CREATING A VORTEX-LIKE FLOW WITHIN THE STRUCTURE; AND B. AT LEAST ONE HOLLOW TUBE OPEN AT BOTH ENDS; WHEREIN; A. ONE END OF TUBE (B) IS CONNECED TO STRUCTURE (A) AT ABOUT ITS ORIFICE IN SUBSTANTIALLY CONCENTRIC ALIGNMENT THEREWITH AND IN OPEN COMMUNICATION WITH STRUCTURE (A); B. THE RATIO OF THE LENGTH OF STRUCTURE (A) MEASURED ALONG A THEORETICAL AXIS, WHICH JOINS THE CENTER POINTS OF THE WALLS, TO THE DIAMETER OF STRUCTURE (A) MEASURED ACROSS A THEORETICAL PLANE PERPENDICULAR TO THE THEORETICAL AXIS AND BISECTING STRUCTURE (A) IS ABOUT 0.05:1 TO ABOUT 1:1:. C. THE RATIO OF THE EQUIVALENT DIAMETER OF THE ORIFICE OF STRUCTRUE (A) TO THE EQUIVALENT DIAMTER OF THE TUBE (B) IS ABOUT 1:1 TO ABOUT 0.1:1. D. TUBE (B) HAS A LENGTH TO THE EQUIVALENT DIAMETER OF RATIO OF ABOUT 5:1 TO ABOUT 200:1. AND E. THE RATIO OF THE VOLUME OF STRUCTURE OF (A) TO THE VOLUME OF TUBE (B) IS ABOUT 0.01:1 TO ABOUT 5:1.
Claim 2
Dependent Claim 280 words
A REACTOR ADAPTED FOR THE CRACKING OF HYDROCARBONS WITH HOT GAS COMPRISING: A. A CIRCULAR CONVEX LES SHAPED HOLLOW STRUCTURE HAVING (I) TWO WALLS, WHICH ARE JOINED AT THEIR PERIPHERIES TO FORM THE STRUCTURE, AT LEAST ONE OF SAID WALLS BEING PROVIDED WITH AN ORIFICE DISPOSED SUBSTANTIALLY CENTRALLY THEREIN; AND (ii9 AT LEAST ONE HOLLOW INLET FEED CHAMBER OPEN AT BOTH ENDS PASSING THROUGH A WALL OF THE STRUCTURE, ONE END OF SAID FEED CHAMBER BEING DISPOSED IN THE INTERIOR OF THE STRUCTURE AT ABOUT THE JUNCTURE OF THE WALLS IN SUCH A MANNER THAT VAPOR, WHICH IS PASSED THROUGH SAID CHAMBER, WILL FLOW SUBSTANTIALLY TANGENTIALLY TO THE JUNCTURE, PROVIDED THAT THE RATE OF FLOW IS SUFFICIENT THEREFOR, CREATING A VORTEX-LIKE FLOW WITHIN THE STRUCTURE; AND B. AT LEAST ONE HOLLOW TUBE OPEN AT BOTH ENDS; WHEREIN; A. ONE END OF TUBE (B) IS CONNECED TO STRUCTURE (A) AT ABOUT ITS ORIFICE IN SUBSTANTIALLY CONCENTRIC ALIGNMENT THEREWITH AND IN OPEN COMMUNICATION WITH STRUCTURE (A); B. THE RATIO OF THE LENGTH OF STRUCTURE (A) MEASURED ALONG A THEORETICAL AXIS, WHICH JOINS THE CENTER POINTS OF THE WALLS, TO THE DIAMETER OF STRUCTURE (A) MEASURED ACROSS A THEORETICAL PLANE PERPENDICULAR TO THE THEORETICAL AXIS AND BISECTING STRUCTURE (A) IS ABOUT 0.05:1 TO ABOUT 1:1:. C. THE RATIO OF THE EQUIVALENT DIAMETER OF THE ORIFICE OF STRUCTRUE (A) TO THE EQUIVALENT DIAMTER OF THE TUBE (B) IS ABOUT 1:1 TO ABOUT 0.1:1. D. TUBE (B) HAS A LENGTH TO THE EQUIVALENT DIAMETER OF RATIO OF ABOUT 5:1 TO ABOUT 200:1. AND E. THE RATIO OF THE VOLUME OF STRUCTURE OF (A) TO THE VOLUME OF TUBE (B) IS ABOUT 0.01:1 TO ABOUT 5:1.
Claim 3
Dependent Claim 28 words
The reactor defined in claim 1 wherein one wall is provided with the orifice and there is one tube (B) connected to structure (A) at about said orifice.
Claim 4
Dependent Claim 30 words
The reactor defined in claim 1 wherein both walls are provided with an orifice and two tubes (B) are connected to structure (A), one tube (B) at about each orifice.
Claim 5
Dependent Claim 86 words
The reactor defined in claim 2 wherein: b. structure (A) has a length to diameter ratio of about 0.1:1 to about 1:1; c. the ratio of the equivalent diameter of the orifice of structure (A) to the equivalent diameter of tube (B) is about 1:1 to about 0.25:1; d. tube (B) has a length to equivalent diameter ratio of about 10:1 to about 100:1; and e. the ratio of the volume of structure (A) to the volume of tube (B) is about 0.01:1 to about 2.5:1.
Claim 6
Dependent Claim 86 words
The reactor defined in claim 3 wherein: b. structure (A) has a length to diameter ratio of about 0.1:1 to about 1:1; c. the ratio of the equivalent diameter of the orifice of structure (A) to the equivalent diameter of tube (B) is about 1:1 to about 0.25:1; d. tube (B) has a length to equivalent diameter ratio of about 10:1 to about 100:1; and e. the ratio of the volume of structure (A) to the volume of tube (B) is about 0.01:1 to about 2.5:1.
Claim 7
Dependent Claim 34 words
The reactor defined in claim 2 wherein the inlet feed chamber is a cylindrical tube, the theoretical axis of which is in essentially tangential alignment with the juncture of the walls of structure (A).
Claim 8
Dependent Claim 34 words
The reactor defined in claim 4 wherein the inlet feed chamber is a cylindrical tube, the theoretical axis of which is in essentially tangential alignment with the juncture of the walls of structure (A).

References Cited (Backward Citations)

US3351427A Cited
US3498753A Cited
US3563710A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-18 1978-05-20 1978-11-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-18 1982-05-20 1982-11-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-18 1986-05-20 1986-11-19 $7700.00 Window Closed / Lapsed

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