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This post was last edited by penghh1985 on 2016-2-21 at 17:08. 1. Vibration problems in turbine pumps: http://bbs.hcbbs.com/thread-79051-1-324.html 2. Wear of the elastic rings in screw chiller couplings: http://bbs.hcbbs.com/thread-79510-1-324.html 3. Overcurrent issues with Roots blowers: http://bbs.hcbbs.com/thread-56764-1-324.html 4. High conductivity of ammonia synthesis condensate: http://bbs.hcbbs.com/thread-48490-1-324.html 5. Reasons for high free acid content in pure methanol: http://bbs.hcbbs.com/thread-102003-1-323.html 6. Problems related to cold fluid impact in heat exchange equipment: http://bbs.hcbbs.com/thread-97488-1-323.html 7. Questions regarding ammonia compressors: http://bbs.hcbbs.com/thread-163271-1-1.html 8. Issues related to ammonia synthesis: http://bbs.hcbbs.com/thread-208528-1-1.html 9. Questions about temperature and pressure compensation for high-pressure saturated steam? : http://bbs.hcbbs.com/thread-199585-1-1.html 10. What is the reason for a temperature drop of several degrees in the low-pressure shift bed during parking? : http://bbs.hcbbs.com/thread-230913-1-1.html
11. Reasons for catalyst yellowing: http://bbs.hcbbs.com/thread-231341-1-1.html 12. Reasons for corrosion of the lowest tray in the pre-distillation tower: http://bbs.hcbbs.com/thread-231618-1-1.html 13. Discussion on issues with ammonia compressors: http://bbs.hcbbs.com/thread-149671-1-1.html 14. What are the reasons for high power consumption in compressors? http://bbs.hcbbs.com/thread-217897-1-1.html 15. What are the reasons for high power consumption in compressors? http://bbs.hcbbs.com/thread-217897-1-1.html 16. What is a good choice for the solution used in ammonia absorption? http://bbs.hcbbs.com/thread-234848-1-1.html 17. Why do stoves that use lump coal in combination with briquettes keep toppling over? http://bbs.hcbbs.com/thread-236362-1-1.html 18. Analysis of the reasons for uneven temperature distribution in ammonia synthesis towers and improvement measures http://bbs.hcbbs.com/thread-262328-1-1.html 19. Analysis of typical accidents in similar ammonia synthesis plants abroad http://bbs.hcbbs.com/thread-188820-1-1.html 20. Solutions to the noise problem associated with Roots blowers http://bbs.hcbbs.com/thread-295971-1-1.html
21. Discussion on transformation reaction problems! http://bbs.hcbbs.com/thread-310944-1-1.html 22. What are the reasons for loud noise from the water pump motor? http://bbs.hcbbs.com/thread-317872-1-1.html 23. There is a leak in the high-pressure pipe of the ammonia synthesis reactor – how can the location of the leak be determined? http://bbs.hcbbs.com/thread-313137-1-1.html 24. Vibration problems in the pipelines of the recycle hydrogen compressor http://bbs.hcbbs.com/thread-327675-1-1.html 25. Problems related to catalyst deactivation and handling http://bbs.hcbbs.com/thread-254580-1-1.html 26. Catalyst over-temperature issues http://bbs.hcbbs.com/thread-349858-1-1.html 27. Why does the ammonia transfer pump need to be cooled? What are the steps? http://bbs.hcbbs.com/thread-364500-1-1.html 28. Why is there a knocking sound in the cycle machine’s cylinders when the hydrogen level is too low? http://bbs.hcbbs.com/thread-362303-1-1.html 29/289