The present invention is directed to methods for mitigating the deleterious effect of at least one metal on an FCC catalyst. This objective is achieved by using a mixed metal oxide compound comprising magnesium and aluminum, that has not been derived from a hydrotalcite compound, and having an X-ray
The present invention is directed to methods for mitigating the deleterious effect of at least one metal on an FCC catalyst. This objective is achieved by using a mixed metal oxide compound comprising magnesium and aluminum, that has not been derived from a hydrotalcite compound, and having an X-ray diffraction pattern displaying at least a reflection at a two theta peak position at about 43 degrees and about 62 degrees, wherein the ratio of magnesium to aluminum in the compound is from about 0.6:1 to about 10:1. In one embodiment, the ratio of magnesium to aluminum in the compound is from about 1:1 to about 6:1. In one embodiment, the ratio of magnesium to aluminum in the compound is from about 1.5:1 to about 10:1. In another embodiment, the invention is directed to methods wherein the ratio of magnesium to aluminum in the compound is from about 1.5:1 to about 6:1.
대표청구항▼
What is claimed is: 1. A method of increasing the performance of a fluid catalytic cracking (FCC) catalyst in the presence of at least one metal comprising: contacting a fluid stream from an FCC unit comprising the fluid catalytic cracking catalyst with a compound comprising magnesium and aluminum,
What is claimed is: 1. A method of increasing the performance of a fluid catalytic cracking (FCC) catalyst in the presence of at least one metal comprising: contacting a fluid stream from an FCC unit comprising the fluid catalytic cracking catalyst with a compound comprising magnesium and aluminum, and having an X-ray diffraction pattern displaying at least a reflection at a 2-theta peak position at about 43 degrees and about 62 degrees, wherein the ratio of magnesium to aluminum in the compound is from about 0.6:1 to about 10:1, and wherein the compound has not been derived from a hydrotalcite compounds. 2. The method of claim 1, wherein the compound increases the catalytic conversion of a feedstock. 3. The method of claim 1, wherein the compound increases gasoline production from a feedstock. 4. The method of claim 1, wherein the compound increases LPG production from a feedstock. 5. The method of claim 1, wherein the compound decreases LCO production from a feedstock. 6. The method of claim 1, wherein the compound decreases the bottoms production from a feedstock. 7. The method of claim 1, wherein the compound decreases the coke production from a feedstock. 8. The method of claim 1, wherein the compound decreases the hydrogen gas production from a feedstock. 9. The method of claim 1, wherein the compound increases the octane rating of gasoline produced from a feedstock. 10. The method of claim 1, wherein the compound decreases the sulfur content of gasoline produced from a feedstock. 11. The method of claim 1, wherein the compound mitigates the decrease in FCC catalyst crystallinity caused by a metal. 12. The method of claim 11, wherein the FCC catalyst comprises Y-faujasite zeolite. 13. The method of claim 1, wherein the compound mitigates the reduction, caused by a metal, in the height/intensity of the 2-theta peak at 6.3 degrees for an X-ray power diffraction of a zeolite in the FCC catalyst. 14. The method of claim 1, wherein the compound mitigates the reduction in the surface area of a zeolite in the FCC catalyst. 15. The method of claim 1, wherein the compound comprises an additional metal component. 16. The method of claim 15, wherein the compound increases the catalytic conversion of a feedstock. 17. The method of claim 15, wherein the compound increases the gasoline production from a feedstock. 18. The method of claim 15, wherein the compound increases the LPG production from a feedstock. 19. The method of claim 15, wherein the compound decreases the LCO production from a feedstock. 20. The method of claim 15, wherein the compound decreases the bottoms production from a feedstock. 21. The method of claim 15, wherein the compound decreases the coke production from a feedstock. 22. The method of claim 15, wherein the compound decreases the hydrogen gas production from a feedstock. 23. The method of claim 15, wherein the compound increases the octane rating of gasoline produced from a feedstock. 24. The method of claim 15, wherein the compound decreases the sulfur content of gasoline produced from a feedstock. 25. The method of claim 15, wherein the compound mitigates the decrease in FCC catalyst crystallinity caused by a metal. 26. The method of claim 15, wherein the FCC catalyst comprises Y-faujasite zeolite. 27. The method of claim 15 wherein the compound mitigates the reduction, caused by a metal, in the height/intensity of the 2-theta peak at 6.3 degrees for an X-ray power diffraction of a zeolite in the FCC catalyst. 28. The method of claim 15, wherein the compound mitigates the reduction in the surface area of a zeolite in the FCC catalyst. 29. The method of claim 1, wherein the compound passivates at least one metal found in the mixture of compounds present in an FCC run, wherein the metal is cerium, copper, iron, lanthanium, nickel, phosphorus, silica, sodium, sulfur, vanadium, or a mixture of two or more thereof. 30. The method of claim 15, wherein the compound passivates at least one metal found in the feedstock or cracking catalyst, wherein the metal is cerium, copper, iron, lanthanium, nickel, phosphorus, silica, sodium, sulfur, vanadium, or a mixture of two or more thereof. 31. The method of claim 1, wherein substantially no binder is used. 32. The method of claim 1, wherein the compound does not contain an additional support. 33. The method of claim 15, wherein substantially no binder is used. 34. The method of claim 15, wherein the compound does not contain an additional support. 35. The method of claim 15, wherein the additional metal component comprises magnesium, calcium, or a combination thereof. 36. The method of claim 35, wherein the additional metal component comprises calcium oxide. 37. The method of claim 36, wherein the compound comprises about 10% calcium oxide. 38. The method of claim 36, wherein the compound comprises about 20% calcium oxide. 39. The method of claim 35, wherein the additional metal component comprises calcium hydroxide. 40. The method of claim 39, wherein the compound comprises about 10% calcium hydroxide. 41. The method of claim 39, wherein the compound comprises about 20% calcium hydroxide. 42. The method of claim 35, wherein the additional metal component comprises calcium carbonate. 43. The method of claim 42, wherein the compound comprises about 10% calcium carbonate. 44. The method of claim 42, wherein the compound comprises about 20% calcium carbonate. 45. The method of claim 35, wherein the additional metal component comprises magnesium oxide. 46. The method of claim 45, wherein the compound comprises about 10% magnesium oxide. 47. The method of claim 45, wherein the compound comprises about 20% magnesium oxide. 48. The method of claim 35, wherein the additional metal component comprises magnesium hydroxide. 49. The method of claim 48, wherein the compound comprises about 10% magnesium hydroxide. 50. The method of claim 48, wherein the compound comprises about 20% magnesium hydroxide. 51. The method of claim 35, wherein the additional metal component comprises magnesium carbonate. 52. The method of claim 51, wherein the compound comprises about 10% magnesium carbonate. 53. The method of claim 51, wherein the compound comprises about 20% magnesium carbonate.
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