Apparatus and systems having compact configuration multiple swing adsorption beds and methods related thereto

• US 9,162,175 B2
• Filed: 02/27/2012
• Issued: 10/20/2015
• Est. Priority Date: 03/01/2011
• Status: Active Grant

• Current Assignee: Exxonmobil Upstream Research Company (Exxon Mobil Corporation)
• Original Assignee: Exxonmobil Upstream Research Company (Exxon Mobil Corporation)
• Inventors: Sundaram, Narasimhan
• Primary Examiner(s): LAWRENCE JR, FRANK M
• Application Number:
  US13/976,889
• Publication Number:
  US 20130340620A1
• Time in Patent Office: 1,331 Days
• Field of Search: 961/21, 961/39, 961/52, 961/54
• US Class Current: 1/1
• CPC Class Codes: B01D 2253/108 Zeolites
• CPC Class Codes: B01D 2256/245 Methane
• CPC Class Codes: B01D 2257/304 Hydrogen sulfide
• CPC Class Codes: B01D 2257/504 Carbon dioxide
• CPC Class Codes: B01D 53/0407 Constructional details of adsorbing systems
• CPC Class Codes: B01D 53/0446 Means for feeding or distributing gases
• CPC Class Codes: B01D 53/0462 Temperature swing adsorption
• CPC Class Codes: B01D 53/047 Pressure swing adsorption
• CPC Class Codes: Y02C 20/40 of CO2
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A compact configuration for a plurality of swing adsorption beds. The beds are configured within a single vessel such that one or more beds of adsorbent material are position as successive rings about a first, or core, bed of adsorbent material.

Claims

1. An adsorbent bed system comprising:

a first adsorbent bed of adsorbent material capable of selectively removing a target gas from a gaseous mixture, which adsorbent bed is substantially cylindrical shape;

a second adsorbent bed of adsorbent material capable of selectively removing a target gas from a gaseous mixture, which second adsorbent bed has a substantially cylindrical shape and being disposed about the first bed of adsorbent material and is substantially the same face cross-sectional area as the face cross-sectional area of the first adsorbent bed, wherein the first adsorbent bed and second adsorbent bed are separated by a material that is non-permeable to the gas flowing through the first adsorbent bed and the second adsorbent bed and the non-permeable material prevents leakage of gas between the first adsorbent bed and the second adsorbent bed; and

where the beds are connected at feed and product ends via non-rotary valving or and where the non-rotary valving comprises poppet valves, at least some of which share a common actuator.

2. The adsorbent bed system according to claim 1, further comprising:

a third adsorbent bed of adsorbent material capable of selectively removing a target gas from a gaseous mixture and being substantially annular in shape and being disposed about the second adsorbent bed of adsorbent material, the third adsorbent bed of adsorbent material having approximately the same face cross-sectional area as the face cross-sectional area of the first and second beds of adsorbent material.

3. The adsorbent bed system according to claim 2, further comprising:

a fourth adsorbent bed of adsorbent material which has selectivity to a target gas in a gaseous mixture and having a substantially cylindrical shape and being disposed about the third bed of adsorbent material, the fourth bed of adsorbent material having approximately the same face cross-sectional area as the face cross-sectional area of the first, second and third beds of adsorbent material.

4. The adsorbent bed system of claim 1 where the adsorbents are structured materials or combinations of structured materials and gas flow through the structured materials is substantially axial-flow.

5. The adsorbent bed system of claim 1 where the adsorbents are non-structured materials or combinations of non-structured materials.

6. The adsorbent bed system of claim 1 where the beds, valves and interconnections are used to deploy a swing adsorption process to separate components of a feed stream, such that at least one resultant product stream is enriched preferentially in one of the feed components.

7. The adsorbent bed system of claim 6 where the swing adsorption process is a fast cycled pressure swing adsorption process.

8. The adsorbent bed system of claim 6 where the swing adsorption process is a thermal swing process or a combination of thermal swing and pressure swing processes.

9. The adsorbent bed system of claim 1 which is assembled by introducing annular grooves into an adsorbent monolith and sliding annular rings of impermeable material into said grooves, said grooves running the length of the monolith material.

10. The adsorbent bed system of claim 9 where the grooves are introduced using extrusion techniques or cutting techniques including lasers.

11. The adsorbent system of claim 1 which is assembled by rolling/winding an adsorbent coated sheet on the outside of a cylinder containing a rolled adsorbent sheet of similar material as said adsorbent, and subsequently encasing said first rolled sheet in an annular cylinder of impermeable material.

12. The adsorbent bed system of claim 11 where encasing also uses additional sealing and filling means.

13. The adsorbent bed system of claim 11 where additional adsorbent sheets are successively wound and then encased to obtain multiple concentric vessels greater in number than two.

14. The adsorbent bed system of claim 1, wherein the flow of streams through the first adsorbent bed and the second adsorbent bed are configured to flow in opposite directions relative to each other.

15. An adsorbent bed system comprising:

a first adsorbent bed of adsorbent material capable of selectively removing a target gas from a gaseous mixture, which adsorbent bed is substantially cylindrical shape;

a second adsorbent bed of adsorbent material capable of selectively removing a target gas from a gaseous mixture, which second adsorbent bed has a substantially cylindrical shape and being disposed about the first bed of adsorbent material and is substantially the same face cross-sectional area as the face cross-sectional area of the first adsorbent bed, wherein the first adsorbent bed and second adsorbent bed are separated by a material that is non-permeable to the gas flowing through the first adsorbent bed and the second adsorbent bed and the non-permeable material prevents leakage of gas between the first adsorbent bed and the second adsorbent bed; and

which is assembled by introducing annular grooves into an adsorbent monolith and sliding annular rings of impermeable material into said grooves, said grooves running the length of the monolith material.

16. The adsorbent bed system according to claim 15, further comprising:

a third adsorbent bed of adsorbent material capable of selectively removing a target gas from a gaseous mixture and being substantially annular in shape and being disposed about the second adsorbent bed of adsorbent material, the third adsorbent bed of adsorbent material having approximately the same face cross-sectional area as the face cross-sectional area of the first and second beds of adsorbent material.

17. The adsorbent bed system according to claim 16, further comprising:

a fourth adsorbent bed of adsorbent material which has selectivity to a target gas in a gaseous mixture and having a substantially cylindrical shape and being disposed about the third bed of adsorbent material, the fourth bed of adsorbent material having approximately the same face cross-sectional area as the face cross-sectional area of the first, second and third beds of adsorbent material.

18. The adsorbent bed system according to claim 15 where the beds are connected at feed and product ends via rotary valving or non-rotary valving or a combination of these.

19. The adsorbent bed system of claim 18 where the adsorbents are structured materials or combinations of structured materials and gas flow through the structured materials is substantially axial-flow.

20. The adsorbent bed system of claim 18 where the adsorbents are non-structured materials or combinations of non-structured materials.

21. The adsorbent bed system of claim 18 where the beds, valves and interconnections are used to deploy a swing adsorption process to separate components of a feed stream, such that at least one resultant product stream is enriched preferentially in one of the feed components.

22. The adsorbent bed system of claim 21 where the swing adsorption process is a fast cycled pressure swing adsorption process.

23. The adsorbent bed system of claim 21 where the swing adsorption process is a thermal swing process or a combination of thermal swing and pressure swing processes.

24. The adsorbent bed system of claim 15 where the grooves are introduced using extrusion techniques or cutting techniques including lasers.

25. The adsorbent bed system of claim 15 wherein the flow of streams through the first adsorbent bed and the second adsorbent bed are configured to flow in opposite directions relative to each other.

26. An adsorbent bed system comprising:

a first adsorbent bed of adsorbent material capable of selectively removing a target gas from a gaseous mixture, which adsorbent bed is substantially cylindrical shape;

a second adsorbent bed of adsorbent material capable of selectively removing a target gas from a gaseous mixture, which second adsorbent bed has a substantially cylindrical shape and being disposed about the first bed of adsorbent material and is substantially the same face cross-sectional area as the face cross-sectional area of the first adsorbent bed, wherein the first adsorbent bed and second adsorbent bed are separated by a material that is non-permeable to the gas flowing through the first adsorbent bed and the second adsorbent bed and the non-permeable material prevents leakage of gas between the first adsorbent bed and the second adsorbent bed; and

which is assembled by rolling/winding an adsorbent coated sheet on the outside of a cylinder containing a rolled adsorbent sheet of similar material as said adsorbent, and subsequently encasing said first rolled sheet in an annular cylinder of impermeable material.

27. The adsorbent bed system according to claim 26, further comprising:

a third adsorbent bed of adsorbent material capable of selectively removing a target gas from a gaseous mixture and being substantially annular in shape and being disposed about the second adsorbent bed of adsorbent material, the third adsorbent bed of adsorbent material having approximately the same face cross-sectional area as the face cross-sectional area of the first and second beds of adsorbent material.

28. The adsorbent bed system according to claim 27, further comprising:

a fourth adsorbent bed of adsorbent material which has selectivity to a target gas in a gaseous mixture and having a substantially cylindrical shape and being disposed about the third bed of adsorbent material, the fourth bed of adsorbent material having approximately the same face cross-sectional area as the face cross-sectional area of the first, second and third beds of adsorbent material.

29. The adsorbent bed system according to claim 26 where the beds are connected at feed and product ends via rotary valving or non-rotary valving or a combination of these.

30. The adsorbent bed system of claim 29 where the adsorbents are structured materials or combinations of structured materials and gas flow through the structured materials is substantially axial-flow.

31. The adsorbent bed system of claim 29 where the adsorbents are non-structured materials or combinations of non-structured materials.

32. The adsorbent bed system of claim 29 where the beds, valves and interconnections are used to deploy a swing adsorption process to separate components of a feed stream, such that at least one resultant product stream is enriched preferentially in one of the feed components.

33. The adsorbent bed system of claim 32 where the swing adsorption process is a fast cycled pressure swing adsorption process.

34. The adsorbent bed system of claim 32 where the swing adsorption process is a thermal swing process or a combination of thermal swing and pressure swing processes.

35. The adsorbent bed system of claim 26 where encasing also uses additional sealing and filling means.

36. The adsorbent bed system of claim 26 where additional adsorbent sheets are successively wound and then encased to obtain multiple concentric vessels greater in number than two.

37. The adsorbent bed system of claim 26 wherein the flow of streams through the first adsorbent bed and the second adsorbent bed are configured to flow in opposite directions relative to each other.