Summary Post on Coal Coking Technology Exchange (VI) – Ammonium Sulfate
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1. Definition and related knowledge of ammonium sulfate http://bbs.hcbbs.com/viewthread.php?tid=375462&highlight=%C1%F2%EF%A7 2. Issues related to ammonium sulfate http://bbs.hcbbs.com/viewthread.php?tid=364888&highlight=%C1%F2%EF%A7 3. Yield of ammonium sulfate http://bbs.hcbbs.com/viewthread.php?tid=369768&highlight=%C1%F2%EF%A7 4. How to solve the problem of blockage in the gas preheater used in ammonium sulfate production in coking plants? http://bbs.hcbbs.com/viewthread.php?tid=357965&highlight=%C1%F2%EF%A7 5. The ammonia evaporation tower in the steel coking plant was upgraded and put into use http://bbs.hcbbs.com/viewthread.php?tid=235779&highlight=%C1%F2%EF%A7 (no practical significance; it’s a very simple post). 6. Why is the ammonium sulfate produced in coking processes light green in color? What are some good solutions? http://bbs.hcbbs.com/viewthread.php?tid=207525&highlight=%C1%F2%EF%A7 7. Process parameter control in the ammonium sulfate section of coking plants! http://bbs.hcbbs.com/viewthread.php?tid=181866&highlight=%C1%F2%EF%A7 Last edited by ryn on 2009-3-11 20:28]
8. Request for help: Method for calculating the yield of sulfuric acid in coking plants http://bbs.hcbbs.com/viewthread.php?tid=110538&highlight=%C1%F2%CB%E1%EF%A7 9. High ammonia content after the saturator http://bbs.hcbbs.com/viewthread.php?tid=337282&highlight=%B1%A5%BA%CD%C6%F7 10. Acidity of the mother liquor http://bbs.hcbbs.com/viewthread.php?tid=352014&highlight=%C4%B8%D2%BA 11. Is it necessary to prevent freezing of the ammonium sulfate mother liquor during winter shutdowns? http://bbs.hcbbs.com/viewthread.php?tid=325944&highlight=%C4%B8%D2%BA 12. Why does the ammonium sulfate mother liquor take on various colors after leakage? http://bbs.hcbbs.com/viewthread.php?tid=269402&highlight=%C4%B8%D2%BA 13. Control of the crystal size of ammonium sulfate http://bbs.hcbbs.com/viewthread.php?tid=359747 14. Papers on the renovation of the ammonium sulfate production unit http://bbs.hcbbs.com/viewthread.php?tid=358986 15. The production process of sulfuric acid AN http://bbs.hcbbs.com/viewthread.php?tid=171215 16. Process flow diagram for ammonium sulfate production http://bbs.hcbbs.com/viewthread.php?tid=139948 17. Discussion on equipment corrosion in ammonium sulfate production units across various facilities http://bbs.hcbbs.com/redirect.php?tid=371597&goto=lastpost 18. Reasons why the nozzles in ammonium sulfate saturators get clogged easily http://bbs.hcbbs.com/thread-357681-1-1.html 19. Operating procedures for automatic weighing in ammonium sulfate packaging http://bbs.hcbbs.com/thread-328633-1-6.html 20. Issues related to ammonium sulfate production http://bbs.hcbbs.com/viewthread.php?tid=358428 21. Improvements in anti-corrosion techniques for ammonium sulfate saturators http://bbs.hcbbs.com/thread-260116-1-2.html 22. Operational experience in ammonium sulfate production http://bbs.hcbbs.com/thread-260117-1-3.html 23. Which types of paint can prevent corrosion caused by ammonium sulfate dust? http://bbs.hcbbs.com/thread-354218-1-2.html 24. Information related to ammonium sulfate and concentrated sulfuric acid http://bbs.hcbbs.com/thread-340353-1-7.html 25. The production process of ammonium sulfate http://bbs.hcbbs.com/thread-324466-1-6.html 26. Re-uploading three posts on ammonium sulfate anti-corrosion, production, and waste gas from tar dehydration http://bbs.hcbbs.com/thread-326259-1-3.html 27. Yield of ammonium sulfate http://bbs.hcbbs.com/redirect.php?tid=369768&goto=lastpost 28. Technical requirements for purchasing saturators http://bbs.hcbbs.com/thread-155018-1-10.html 30. Topics for discussion on anti-corrosion issues related to sulfuric acid AN http://bbs.hcbbs.com/redirect.php?tid=363207&goto=lastpost 31. Two issues related to chemical production http://bbs.hcbbs.com/viewthread.php?tid=323063 32. What is the temperature resistance of 316L stainless steel? http://bbs.hcbbs.com/viewthread.php?tid=220927 33. Can anyone explain the process flow for producing ammonium sulfate as a by-product in coking plants? http://bbs.hcbbs.com/viewthread.php?tid=314785 34. Ammonium sulfate products http://bbs.hcbbs.com/viewthread.php?tid=221581 35. What is the purpose of the gas preheater before the ammonium sulfate saturator? http://bbs.hcbbs.com/viewthread.php?tid=195815 36. Why is the resistance in the saturator so high? http://bbs.hcbbs.com/viewthread.php?tid=293486 37. Sulfamic acid process flow diagram http://bbs.hcbbs.com/viewthread.php?tid=139948 38. How can sulfamic acid be modified to enable normal production? http://bbs.hcbbs.com/viewthread.php?tid=82616 39. Issues related to the production of ammonium sulfate using saturators http://bbs.hcbbs.com/viewthread.php?tid=331425 40. Who can explain the process flow for producing ammonium sulfate as a by-product in coking plants? http://bbs.hcbbs.com/viewthread.php?tid=314785
Added on 2009.4.27: 41. Regarding the color of ammonium sulfate; 42. Ammonium sulfate gas preheaters; 43. Question bank related to desulfurization and ammonium sulfate; 44. Excessive foam in ammonium sulfate mother liquor; 45. Problems with ammonium sulfate gaskets; 46. Operational experience in producing ammonium sulfate using spray-type saturators; 47. Operations related to ammonium sulfate; 48. Which units use exhaust cleaning towers for the treatment of exhaust gases from the cold drum, ammonium sulfate, crude benzene, and desulfurization sections? 49. Relationship between nitrogen content and ammonium sulfate 50. Use of soft PTFE gaskets in the ammonium sulfate production section 51. What type of level gauge is suitable for the coking crude benzene section and the ammonium sulfate section? 52. Issues related to ammonium sulfate consumption 53. Anti-corrosion treatment for ammonium sulfate production facilities 54. Problems associated with the transport of ammonium sulfate in flue gas desulfurization processes 55. Issues related to corrosion of ammonium sulfate pipelines 56. Photos of the ammonium sulfate production area in coking plants 57. What should be the temperature of the ammonium sulfate saturator? 58. Can waste sulfuric acid containing 20% sodium salts be used in the production of ammonium sulfate? 59. Is evaporation necessary for the ammonia and sulfur removal in coke oven gas? 60. The specific heat capacity of ammonium sulfate mother liquor. 61. Process flow diagrams for ammonium sulfate production, as well as processes for sulfur removal and recovery. 62. What acid addition regime is appropriate for ammonium sulfate production? 63. Can the thermal energy from the ammonia vaporization wastewater in the ammonia vaporization tower be recovered for use in ammonia vaporization in the ammonium sulfate production process? 64. Coefficient for converting ammonium sulfate to standard coal. 65. What to do if the crystalline particles of ammonium sulfate are small and the mother liquor foams? 66. Can ammonium sulfide dust explode? 67. Method for determining the acidity of ammonium sulfide mother liquor 68. How to produce ammonium sulfide from 3% H2S gas This post was last edited by Xuehanbing on 2009-4-27 01:29]
:victory::handshake:handshake
Such a great post – let’s upvote it and take a look at my big car at the same time.
:victory::victory::victory: