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  1. Regarding how to calculate the time it takes for crude oil to pass through the unit - HCBBS Forum
  2. 【Daily Question No. 220】2017.08.08 - HCBBS Forum
  3. 【Q&A Question No. 099】2018.04.09 - HCBBS Forum
  4. Handling of the shutdown incident of the recycle hydrogen compressor in the residue hydrodesulfurization unit. - HCBBS Forum
  5. How to calculate the dosage of chemicals to be added on a daily basis to the boiler water system of a hydrogen production plant? - HCBBS Forum
  6. Share your views on the implementation of the safety production responsibility system. - HCBBS Forum
  7. Ammonium salt crystallization in hydrogenation heat exchangers - HCBBS Forum
  8. [Q&A Question 080] 2018.03.21 - HCBBS Forum
  9. 【Daily Question Question 310】November 24, 2017 - HCBBS Forum
  10. PSA issues in hydrogen production - HCBBS Forum
  11. What pressure difference is required for flashing? - HCBBS Forum
  12. 【Q&A Question 110】April 20, 2018 - HCBBS Forum
  13. The typical relationship between the surface tension of residue and temperature - HCBBS Forum
  14. 【Daily Question No. 247】2017.09.05 - HCBBS Forum
  15. 【Daily Question No. 219】2017.08.07 - HCBBS Forum
  16. Requirements for oil used in catalyst sulfidation for diesel upgrading - HCBBS Forum
  17. 【Daily Question Question 287】November 1, 2017 - HCBBS Forum
  18. 【Daily Question No. 065】2017.09.10 - HCBBS Forum
  19. How to adjust in actual production when the components of the hydrogenation feed change? - HCBBS Forum
  20. How to adjust high dry point of Chijia thick gasoline? - HCBBS Forum
  21. What are the main reasons? As far as I know, one of them is to prevent the vaporization of naphtha - HCBBS Forum
  22. 【Q&A Question 270】2017.09.28 - HCBBS Forum
  23. What are the advantages of feeding the hydrogenation reactor from a low level to a high level, and from a high level to a low level? - HCBBS Forum
  24. [Q&A Question 105] 2018.04.15 - HCBBS Forum
  25. How to deal with oil-water emulsification at the high-pressure lubricating oil hydrogenation cold separation level? I’d like to hear your opinions and suggestions. - HCBBS Forum
  26. 【Q&A Question 050】2018.02.19 - HCBBS Forum
  27. Seeking help with several questions regarding hydrogen production from methanol - HCBBS Forum
  28. 【Q&A Question 208】2017.07.27 - HCBBS Forum
  29. Hydrogen sulfide absorption - HCBBS Forum
  30. What are the advantages and disadvantages of combining hydrogenation and hydrogen production in the same workshop? Share your views - HCBBS Forum
  31. 【Q&A Question 159】2018.06.08 - HCBBS Forum
  32. [Q&A Question 199] 2018.07.24 - HCBBS Forum
  33. Experts, please give me some advice - HCBBS Forum
  34. Sharing of experiences and insights regarding excessive levels of highly acidic ferric ions in water in diesel hydrogenation units - HCBBS Forum
  35. The Book on Hydroprocessing Processes and Engineering - HCBBS Forum
  36. What are the reasons for the decrease in diesel hydrogenation cetane number? And adjustment measures. - HCBBS Forum
  37. What is the most appropriate way to make adjustments when the furnace flame in a converter shows the following conditions? - HCBBS Forum
  38. The issue of sulfur content in high-quality firewood - HCBBS Forum
  39. [Q&A Question 323] 2017.12.07 - HCBBS Forum
  40. Hydrogen production from natural gas - HCBBS Forum
  41. Which unit systems in a refinery require emergency nitrogen in the event of a plant-wide power outage? - HCBBS Forum
  42. Seeking information on the material balance in hydrocracking, starting from the basics - HCBBS Forum
  43. 【Q&A Question 156】2018.06.05 - HCBBS Forum
  44. Abnormal noise from the check valve on the outlet of the new hydrogen engine - HCBBS Forum
  45. What does hydrogen desorption mean? - HCBBS Forum
  46. What are the advantages of staged catalyst loading in hydrocracking reactors? - HCBBS Forum
  47. How many total fixed drainage points are there in the hydrogen production plant, and what is the function of each? - HCBBS Forum
  48. The effect of chlorine on nickel catalysts - HCBBS Forum
  49. 【Daily Question Question 277】2017.10.05 - HCBBS Forum
  50. [Q&A Question 216] 2018.08.10 - HCBBS Forum
  51. During shutdown, what was the maximum pressure difference the reactor experienced, and how long did it withstand it? - HCBBS Forum
  52. For the air-cooled deformation you have seen, please include the images and the processing results - HCBBS Forum
  53. [Q&A Question 207] 2017.07.26 - HCBBS Forum
  54. [Q&A Question 200] 2018.07.25 - HCBBS Forum
  55. 【Q&A Question 040】2018.02.09 - HCBBS Forum
  56. Special post on diesel hydrogenation interlocks – thank you all for your active participation! - HCBBS Forum
  57. Hydrogenation unit - HCBBS Forum
  58. 【Q&A Question 099】April 09, 2017 - HCBBS Forum
  59. Significance of the two hydrogen mixing points before the hydrofining furnace - HCBBS Forum
  60. 【Daily Question No. 107】April 17, 2017 - HCBBS Forum
  61. 【Q&A Question 023】2017.01.23 - HCBBS Forum
  62. Paraffin oil hydrogenation - HCBBS Forum
  63. 【Daily Question No. 173】2017.06.22 - HCBBS Forum
  64. [Q&A Question 084] 2017.03.25 - HCBBS Forum
  65. Can catalytically hydrogenated gasoline be used directly as vehicle fuel? Is it necessary to add MTBE? - HCBBS Forum
  66. 【Daily Question No. 122】2017.05.02 - HCBBS Forum
  67. [Q&A Question 083] 2017.03.24 - HCBBS Forum
  68. [Q&A Question 194] 2017.07.13 - HCBBS Forum
  69. What is the function of the accident cooler in a hydrogen production plant? - HCBBS Forum
  70. Looking for hydrogen production plants of similar scale near Shandong for a capacity of 40,000 cubic meters per hour - HCBBS Forum
  71. 【Daily Question No. 141】2017.05.21 - HCBBS Forum
  72. 【Daily Question No. 198】2017.07.17 - HCBBS Forum
  73. [Q&A Question 123] 2017.05.03 - HCBBS Forum
  74. 【Q&A Question 019】2017.01.19 - HCBBS Forum
  75. What is the state of the material inside the reactor? - HCBBS Forum
  76. 【Daily Question No. 028】2017.01.28 - HCBBS Forum
  77. 【Q&A Question 074】March 15, 2017 - HCBBS Forum
  78. Fluctuations in hydrogen flow rate in residue hydrogenation process - HCBBS Forum
  79. Principle of pressure swing adsorption - HCBBS Forum
  80. Why is an interlock for low inlet pressure required for hydrogen compressors? - HCBBS Forum
  81. Why are the high- and low-sulfur wastewater streams from hydrorefining sent to the sulfiding agent tank? - HCBBS Forum
  82. Discussion on the safety distance between a hydrogen supply station and a hydrogen refueling station in a certain factory - HCBBS Forum
  83. Why is membrane separation sensitive to reverse pressure? - HCBBS Forum
  84. Regarding the issue of mitigating the hydrocracking catalyst? - HCBBS Forum
  85. [Q&A Question 140] 2017.05.20 - HCBBS Forum
  86. 【Q&A Question 056】February 25, 2017 - HCBBS Forum
  87. Regarding the basic pressure boosting and relief issues of hydrogenation units? - HCBBS Forum
  88. What are the safety hazards in hydrogen production facilities? - HCBBS Forum
  89. Reasons for diesel color change - HCBBS Forum
  90. Am I going to lose my job? - HCBBS Forum
  91. 【Q&A Question 129】2017.05.09 - HCBBS Forum
  92. Why is the high-pressure separation tank for the hydrogenation of C9 heavy aromatics used in a vertical configuration? - HCBBS Forum
  93. 【Q&A Question 033】2017.02.02 - HCBBS Forum
  94. How many shims are needed to block the blind flange? - HCBBS Forum
  95. 【Q&A Question 024】2017.01.24 - HCBBS Forum
  96. Catalyst presulfurization - HCBBS Forum
  97. 【Daily Question No. 145】2017.05.25 - HCBBS Forum
  98. 【Q&A Question 005】2017.01.05 - HCBBS Forum
  99. 【Daily Question No. 149】2017.05.29 - HCBBS Forum
  100. For integrated refining and chemical projects, how should the hydrogen production solution be chosen? - HCBBS Forum
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