Patent
Hybrid adsorptive membrane reactor
| العنوان: | Hybrid adsorptive membrane reactor |
|---|---|
| Patent Number: | 7,897,122 |
| تاريخ النشر: | March 01, 2011 |
| Appl. No: | 11/354672 |
| Application Filed: | February 14, 2006 |
| مستخلص: | A hybrid adsorbent-membrane reactor in which the chemical reaction, membrane separation, and product adsorption are coupled. Also disclosed are a dual-reactor apparatus and a process using the reactor or the apparatus. |
| Inventors: | Tsotsis, Theodore T. (Huntington Beach, CA, US); Sahimi, Muhammad (Altadena, CA, US); Fayyaz-Najafi, Babak (Richmond, CA, US); Harale, Aadesh (Los Angeles, CA, US); Park, Byoung-Gi (Yeosu, KR); Liu, Paul K. T. (Lafayette Hill, PA, US) |
| Assignees: | Media and Process Technology (Pittsburgh, PA, US), LG Petrochemical Co., Ltd. (Seoul, KR), University of Southern California (Los Angeles, CA, US) |
| Claim: | 1. A reactor comprising: a chamber; an inlet for introducing one or more reactants into the chamber; a catalyst disposed in the chamber for facilitating a reaction of the reactants to produce at least one desired product and at least one by-product, wherein the reaction is a water-gas-shift (WGS) reaction; a membrane disposed in the chamber for selectively permitting the desired product and the by-product to pass through the membrane; an adsorbent disposed in the chamber for adsorbing the by-product; and an outlet for allowing the desired product to exit the chamber. |
| Claim: | 2. The reactor of claim 1 , wherein the membrane is a carbon molecular sieve (CMS) or silicon carbide membrane. |
| Claim: | 3. The reactor of claim 1 , wherein the adsorbent is a hydrotalcite. |
| Claim: | 4. An apparatus comprising at least two reactors of claim 1 . |
| Claim: | 5. A reactor comprising: a chamber; an inlet for introducing one or more reactants into the chamber; a catalyst disposed in the chamber for facilitating a reaction of the reactants to produce at least one desired product and at least one by-product, wherein the reaction is a steam reforming reaction; a non-metallic membrane disposed in the chamber for selectively permitting the desired product and the by-product to pass through the membrane; an adsorbent disposed in the chamber for adsorbing the by-product; and an outlet for allowing the desired product to exit the chamber. |
| Claim: | 6. The reactor of claim 5 , wherein the membrane is a CMS or silicon carbide membrane. |
| Claim: | 7. The reactor of claim 5 , wherein the adsorbent is a hydrotalcite. |
| Claim: | 8. A reactor comprising: a chamber; an inlet for introducing one or more reactants into the chamber; a catalyst disposed in the chamber for facilitating a reaction of the reactants to produce at least one desired product and at least one by-product, wherein the reaction is a steam reforming reaction; a membrane disposed in the chamber for selectively permitting the desired product and the by-product to pass through the membrane; a hydrotalcite adsorbent disposed in the chamber for adsorbing the byproduct; and an outlet for allowing the desired product to exit the chamber. |
| Claim: | 9. The reactor of claim 8 , wherein the membrane is a CMS or silicon carbide membrane. |
| Claim: | 10. A reactor comprising: a chamber; an inlet for introducing one or more reactants into the chamber; a catalyst disposed in the chamber for facilitating a reaction of the reactants to produce at least one desired product and at least one by-product, wherein the reaction is a steam reforming reaction; a membrane disposed in the chamber for selectively permitting the desired product and the by-product to pass through the membrane; an adsorbent disposed in the chamber for adsorbing the by-product; and an outlet for allowing the desired product to exit the chamber, wherein neither the catalyst nor the adsorbent is disposed in a circulating fluidized bed. |
| Claim: | 11. The reactor of claim 10 , wherein the membrane is a CMS or silicon carbide membrane. |
| Claim: | 12. The reactor of claim 10 , wherein the adsorbent is a hydrotalcite. |
| Claim: | 13. An apparatus comprising: at least two reactors, each reactor including: a chamber; an inlet for introducing one or more reactants into the chamber; a catalyst disposed in the chamber for facilitating a reaction of the reactants to produce at least one desired product and at least one by-product, wherein the reaction is a steam reforming reaction; a membrane disposed in the chamber for selectively permitting the desired product and the by-product to pass through the membrane; an adsorbent disposed in the chamber for adsorbing the byproduct; and an outlet for allowing the desired product to exit the chamber. |
| Claim: | 14. The reactor of claim 13 , wherein the membrane is a CMS or silicon carbide membrane. |
| Claim: | 15. The reactor of claim 13 , wherein the adsorbent is a hydrotalcite. |
| Claim: | 16. A reactor comprising: a chamber; an inlet for introducing one or more reactants into the chamber; a catalyst disposed in the chamber for facilitating a reaction of the reactants to produce at least one desired product and at least one by-product; a CMS or silicon carbide membrane disposed in the chamber for selectively permitting the desired product and the by-product to pass through the membrane; an adsorbent disposed in the chamber for adsorbing the by-product; and an outlet for allowing the desired product to exit the chamber. |
| Claim: | 17. The reactor of claim 16 , wherein the adsorbent is a hydrotalcite. |
| Claim: | 18. An apparatus comprising at least two reactors of claim 16 . |
| Claim: | 19. A reactor comprising: a chamber; an inlet for introducing one or more reactants into the chamber; a catalyst disposed in the chamber for facilitating a reaction of the reactants to produce at least one desired product and at least one by-product, wherein the reaction is a steam reforming reaction; a membrane disposed in the chamber for selectively permitting the desired product and the by-product to pass through the membrane; a hydrotalcite adsorbent disposed in the chamber for adsorbing the byproduct; and an outlet for allowing the desired product to exit the chamber. |
| Claim: | 20. An apparatus comprising at least two reactors of claim 19 . |
| Claim: | 21. A process comprising: introducing one or more reactants into the reactor of claim 1 ; contacting the catalyst with the reactants to facilitate a reaction of the reactants to produce at least one desired product and at least one by-product; selectively passing the desired product and the by-product through the membrane; adsorbing the by-product with the adsorbent; and withdrawing the desired product from the reactor. |
| Claim: | 22. The process of claim 21 , wherein the process is carried out at 275-700° C. |
| Claim: | 23. A process comprising: introducing one or more reactants into each reactor of the apparatus of claim 4 ; contacting the catalyst with the reactants to facilitate a reaction of the reactants to produce at least one desired product and at least one by-product in the reactor; selectively passing the desired product and the by-product through the membrane in the reactor; adsorbing the by-product with the adsorbent in the reactor; and withdrawing the desired product from the reactor, wherein the reactors of the apparatus are offset in point of time such that, at all times, the desired product is being withdrawn from at least one of the reactors. |
| Claim: | 24. The process of claim 23 , wherein the process is carried out at 275-700° C. |
| Claim: | 25. A process comprising: introducing one or more reactants into the reactor of claim 5 ; contacting the catalyst with the reactants to facilitate a reaction of the reactants to produce at least one desired product and at least one by-product; selectively passing the desired product and the by-product through the membrane; adsorbing the by-product with the adsorbent; and withdrawing the desired product from the reactor. |
| Claim: | 26. The process of claim 25 , wherein the process is carried out at 275-700° C. |
| Claim: | 27. A process comprising: introducing one or more reactants into the reactor of claim 8 ; contacting the catalyst with the reactants to facilitate a reaction of the reactants to produce at least one desired product and at least one by-product; selectively passing the desired product and the by-product through the membrane; adsorbing the by-product with the adsorbent; and withdrawing the desired product from the reactor. |
| Claim: | 28. The process of claim 27 , wherein the process is carried out at 275-700° C. |
| Claim: | 29. A process comprising: introducing one or more reactants into the reactor of claim 10 ; contacting the catalyst with the reactants to facilitate a reaction of the reactants to produce at least one desired product and at least one by-product; selectively passing the desired product and the by-product through the membrane; adsorbing the by-product with the adsorbent; and withdrawing the desired product from the reactor. |
| Claim: | 30. The process of claim 29 , wherein the process is carried out at 275-700° C. |
| Claim: | 31. A process comprising: introducing one or more reactants into each reactor of the apparatus of claim 13 ; contacting the catalyst with the reactants to facilitate a reaction of the reactants to produce at least one desired product and at least one by-product in the reactor; selectively passing the desired product and the by-product through the membrane in the reactor; adsorbing the by-product with the adsorbent in the reactor; and withdrawing the desired product from the reactor, wherein the reactors of the apparatus are offset in point of time such that, at all times, the desired product is being withdrawn from at least one of the reactors. |
| Claim: | 32. The process of claim 31 , wherein the process is carried out at 275-700° C. |
| Claim: | 33. A process comprising: introducing one or more reactants into the reactor of claim 16 ; contacting the catalyst with the reactants to facilitate a reaction of the reactants to produce at least one desired product and at least one by-product; selectively passing the desired product and the by-product through the membrane; adsorbing the by-product with the adsorbent; and withdrawing the desired product from the reactor. |
| Claim: | 34. The process of claim 33 , wherein the process is carried out at 275-700° C. |
| Claim: | 35. A process comprising: introducing one or more reactants into each reactor of the apparatus of claim 18 ; contacting the catalyst with the reactants to facilitate a reaction of the reactants to produce at least one desired product and at least one by-product in the reactor; selectively passing the desired product and the by-product through the membrane in the reactor; adsorbing the by-product with the adsorbent in the reactor; and withdrawing the desired product from the reactor, wherein the reactors of the apparatus are offset in point of time such that, at all times, the desired product is being withdrawn from at least one of the reactors. |
| Claim: | 36. The process of claim 35 , wherein the process is carried out at 275-700° C. |
| Claim: | 37. A process comprising: introducing one or more reactants into the reactor of claim 19 ; contacting the catalyst with the reactants to facilitate a reaction of the reactants to produce at least one desired product and at least one by-product; selectively passing the desired product and the by-product through the membrane; adsorbing the by-product with the adsorbent; and withdrawing the desired product from the reactor. |
| Claim: | 38. The process of claim 37 , wherein the process is carried out at 275-700° C. |
| Claim: | 39. A process comprising: introducing one or more reactants into each reactor of the apparatus of claim 20 ; contacting the catalyst with the reactants to facilitate a reaction of the reactants to produce at least one desired product and at least one by-product in the reactor; selectively passing the desired product and the by-product through the membrane in the reactor; adsorbing the by-product with the adsorbent in the reactor; and withdrawing the desired product from the reactor, wherein the reactors of the apparatus are offset in point of time such that, at all times, the desired product is being withdrawn from at least one of the reactors. |
| Claim: | 40. The process of claim 39 , wherein the process is carried out at 275-700° C. |
| Current U.S. Class: | 422/239 |
| Patent References Cited: | 5393325 February 1995 Edlund 6248682 June 2001 Thompson et al. 6830596 December 2004 Hershkowitz et al. 6919062 July 2005 Vasileiadis et al. 2003/0156989 August 2003 Safir et al. 2003/0183080 October 2003 Mundschau 2003/0204993 November 2003 Holland et al. |
| Other References: | Ding et al, Equilibria and kinetics of carbon dioxide adsorption on hydrotalcite adsorbent, 2000, Chemical Engineering Science, 55, p. 3461-3474. cited by examiner |
| Assistant Examiner: | Young, Natasha |
| Primary Examiner: | Griffin, Walter D |
| Attorney, Agent or Firm: | Hogan Lovells US LLP |
| رقم الانضمام: | edspgr.07897122 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |