Thread Content
I have compiled all the posts related to regenerator technology within the oil refining technology exchange area, so as to make it easier for everyone to search, save time, find what they need, and assist others in solving problems! Floor 1: 1–55 (Click on the titles directly to access the hyperlinks) 1. Structural diagram of the catalytic cracking regenerator 2. Temperature difference between the dilute and dense phases in the catalytic cracking regenerator 3. How to roughly assess the fluidization quality of the catalyst bed in the regenerator 4. Overheating of the regenerator 5. Maintenance plans for the regenerator 6. Regarding the density of the dilute phase in the regenerator and the density at the inlet of the swirl chamber 7. Overheating of the dilute phase in the regenerator 8. What is the relationship between the main air volume in the catalytic cracking unit and the temperature of the dense phase in the regenerator? 9. In the new dual riser reactor of FDFCC for catalytic cracking, there is a serious issue with catalyst leakage from the regenerator! 10. Time and pressure for loading the regenerator. 11. How to prevent overheating of the regenerator when small amounts of additives are used in the reverse regeneration system. 12. Stress corrosion issues in catalytic regenerators. 13. What pressure of steam is required for anti-coking purposes in catalytic regenerators? 14. May I ask which friend’s refinery uses grids in the regenerator of its catalytic unit? 15. The combustion oil used in the regenerator of catalytic units is generally light diesel; has any manufacturer switched to using heavy oil instead of light diesel? 16. Two-stage regenerators 17. Regarding the coking load of regenerators 18. Regenerator fluidization 19. Purging and loosening media for catalytic regenerators 20. What are the methods for dealing with significant loss of catalyst in the reaction regenerators of catalytic cracking units? 21. Temperature for unloading catalyst from the catalytic regenerator. 22. What are the main reasons for severe catalyst loss in the regenerator? . . . 23. Functions of the internal components of the regenerator. 24. Analysis of the reasons for yellow smoke emission from the regenerator in a catalytic cracking unit. 25. Basic requirements for the design of catalytic cracking unit regenerators 26. Temperature difference between the dense and dilute phases in the regenerator 27. Function of the main air distribution ducts in catalytic cracking regenerators 28. Why does excessive rapid discharge of material from the regenerator lead to afterburning? How can this be explained? 29. Function of the dense-phase grid in the regenerator 30. How is the amount of material stored in the regenerator determined? 31. How is the amount of hot water circulating in the external heat exchanger of the catalytic unit’s regenerator determined? 32. Control of the catalyst inventory in the catalytic regenerator 33. Catalyst loss through the regenerator chimney 34. Issues regarding the regenerator level! 35. Why is the pressure in the catalytic regenerator higher than that in the reactor? 36. Does the steam need to be demisted before entering the reaction regenerator? 37. Level control in the catalytic process with a pre-combustion tank + regenerator. 38. Why is the dense-phase temperature higher than the dilute-phase temperature when carbon buildup occurs in the regenerator? 39. Structure of the continuous reforming regenerator 40. Causes of fluctuations in regenerator level? 41. Issues related to the main air distributor in the regenerator 42. Pressure drop across the FCC regenerator bed 43. Heat of combustion of C that generates CO in the flue gas from the regenerator 44. Problems with the downward flow outside the second regenerator in cases of two-stage catalytic regeneration of heavy oil 45. Reasons for the increase in the dilute-phase density in the regenerator 46. Basic requirements for the design of regenerators in catalytic cracking units 47. Problems associated with settlers and regenerators in catalytic units 48. How should oil-gas mixture entering the regenerator from the settler be handled? 49. Control of the secondary material level in the regenerator with a burned tank 50. On improving the efficiency of the regenerator 51. Request for structural diagrams of the FCC fluidized bed reactor and regenerator 52. On the amount of entrainment in the regenerator 53. How long is the typical service life of a regenerator? 54. On the fluidization in the regenerator 55. Coaxial single-stage counter-current regenerator