التفاصيل البيبلوغرافية
| العنوان: |
Metalloaluminophosphate Molecular Sieves with Lamellar Crystal Morphology and Their Preparation |
| Document Number: |
20100179296 |
| تاريخ النشر: |
July 15, 2010 |
| Appl. No: |
12/530860 |
| Application Filed: |
March 10, 2008 |
| مستخلص: |
The present invention relates to metalloaluminophosphate (MeAPO) molecular sieve with lamellar crystal morphology having an empirical chemical composition on an anhydrous basis, after synthesis and calcination, expressed by the formula HxMeyAlzPkO2 wherein, y+z+k=1 x<=y said molecular sieve having predominantly a plate crystal morphology in which the width (W) and the thickness (T) are such as: W/T is >=10 and advantageously ranges from 10 to 100. In a preferred embodiment T is <=0.15 μm, more desirably <=0.10 μm, more desirably <=0.08 μm, advantageously ranges from 0.01 to 0.07 μm and preferably from 0.04 to 0.07 μm. The above metalloaluminophosphate (MeAPO) molecular sieve can be made by a method which comprises: a) forming a reaction mixture containing a texture influencing agent (TIA), an organic templating agent (TEMP), at least a reactive inorganic source of MeO2 insoluble in the TIA, reactive sources of Al2O3 and P2O5, b) crystallizing the above reaction mixture thus formed until crystals of the metalloaluminophosphate are formed, c) recovering a solid reaction product, d) washing it with water to remove the TIA and e) calcinating it to remove the organic template. In an advantageous embodiment the MeAPO of the invention have essentially a structure CHA or AEI or a mixture thereof. Preferably they have essentially the structure SAPO 18 or SAPO 34 or a mixture thereof. The present invention also relates to catalysts consisting of the above MeAPO molecular sieves or comprising the above MeAPO molecular sieves. The present invention also relates to a process for making an olefin product from an oxygen-containing, halogenide-containing or sulphur-containing feedstock wherein said oxygen-containing, halogenide-containing or sulphur-containing feedstock is contacted with the above catalyst under conditions effective to convert the oxygen-containing, halogenide-containing or sulphur-containing feedstock to olefin products. |
| Inventors: |
Vermeiren, Walter (Houlthelen, BE); Nesterenko, Nikolai (Nivelles, BE); Petitto, Carolina (Montpellier, FR); Di Renzo, Francesco (Montpellier, FR); Fajula, Francois (Teyran, FR) |
| Assignees: |
Total Petrochemcials Research Feluy (Feluy, BE), Centre National De La Recherche Scientifique (CNRS) (Paris, FR) |
| Claim: |
1-31. (canceled) |
| Claim: |
32. A metalloaluminophosphate (MeAPO) molecular sieve comprising: a lamellar crystal morphology having an empirical chemical composition on an anhydrous basis, after synthesis and calcination, expressed by the formula HxMeyAlzPkO2; wherein, the sum of y plus z plus k equals 1.0; x is less than or equal to y; y has a value ranging from 0.0008 to 0.4; z has a value ranging from 0.25 to 0.67; k has a value ranging from 0.2 to 0.67; and said molecular sieve having predominantly a plate crystal morphology having a width (W) and a thickness (T) wherein W/T is greater than or equal to 10. |
| Claim: |
33. The MeAPO molecular sieve of claim 32, wherein y has a value from 0.005 to 0.18. |
| Claim: |
34. The MeAPO molecular sieve of claim 32, wherein z has a value from 0.38 to 0.55. |
| Claim: |
35. The MeAPO molecular sieve of claim 32, wherein k has a value from 0.36 to 0.54. |
| Claim: |
36. The MeAPO molecular sieve of claim 32, wherein Me is silicon. |
| Claim: |
37. The MeAPO molecular sieve of claim 32, wherein T is less than or equal to 0.15 μm. |
| Claim: |
38. The MeAPO molecular sieve of claim 32, wherein T is less than or equal to 0.10 μm. |
| Claim: |
39. The MeAPO molecular sieve of claim 32, wherein T is less than or equal to 0.08 μm. |
| Claim: |
40. The MeAPO molecular sieve of claim 32, wherein T ranges from 0.01 to 0.07 μm. |
| Claim: |
41. The MeAPO molecular sieve of claim 32, wherein T ranges from 0.04 to 0.07 μm. |
| Claim: |
42. The MeAPO molecular sieve of claim 32, wherein W/T ranges from 10 to 100. |
| Claim: |
43. The MeAPO molecular sieve of claim 32, wherein the structure is essentially CHA or AEI or a mixture thereof. |
| Claim: |
44. The MeAPO molecular sieve of claim 32, wherein the structure is essentially SAPO 18 or SAPO 34 or a mixture thereof. |
| Claim: |
45. A catalyst comprising: a MeAPO molecular sieve having a lamellar crystal morphology with an empirical chemical composition on an anhydrous basis, after synthesis and calcination, expressed by the formula HxMeyAlzPkO2; wherein, y+z+k=1 x is less than or equal to y; y has a value ranging from 0.0008 to 0.4; z has a value ranging from 0.25 to 0.67; k has a value ranging from 0.2 to 0.67; and said molecular sieve having predominantly a plate crystal morphology having a width (W) and a thickness (T) wherein W/T is greater than or equal to 10. |
| Claim: |
46. A process for making an olefin product comprising: contacting an oxygenate feedstock with a catalyst under conditions effective to convert the oxygenate feedstock to olefin products; the catalyst comprising a MeAPO molecular sieve having a lamellar crystal morphology with an empirical chemical composition on an anhydrous basis, after synthesis and calcination, expressed by the formula HxMeyAlzPkO2; wherein, y+z+k=1 x is less than or equal to y; y has a value ranging from 0.0008 to 0.4; z has a value ranging from 0.25 to 0.67; k has a value ranging from 0.2 to 0.67; and said molecular sieve having predominantly a plate crystal morphology having a width (W) and a thickness (T) wherein WIT is greater than or equal to 10. |
| Claim: |
47. The process of claim 46, wherein the oxygenate feedstock comprises methanol, dimethyl ether, or a mixture thereof. |
| Claim: |
48. The process of claim 46, wherein the oxygenate feedstock comprises an organic sulphur feedstock. |
| Claim: |
49. The process of claim 46, wherein the oxygenate feedstock comprises an organic halide feedstock. |
| Claim: |
50. The process of claim 46, wherein the olefin products are fractionated to form a first stream comprising essentially ethylene and at least a part of said first stream is recycled for contact with the catalyst. |
| Claim: |
51. The process of claim 46, wherein the olefin products comprise ethylene that is further polymerized. |
| Claim: |
52. The process of claim 51, wherein the ethylene is further polymerized with one or more comonomers. |
| Claim: |
53. The process of claim 46, wherein the olefin products comprise propylene that is further polymerized. |
| Claim: |
54. The process of claim 53, wherein the propylene is further polymerized with one or more comonomers. |
| Current U.S. Class: |
526/351 |
| Current International Class: |
08; 01; 01; 07; 07; 08 |
| رقم الانضمام: |
edspap.20100179296 |
| قاعدة البيانات: |
USPTO Patent Applications |
