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  1. How should the emergency venting system be used properly when the pressure under high-load conditions gets out of control? - HCBBS Forum
  2. Please, experts, answer two questions - HCBBS Forum
  3. Carbon deposition treatment of conversion catalysts - HCBBS Forum
  4. 【Q&A Question 119】April 29, 2018 - HCBBS Forum
  5. [Q&A Question 213] 2017.08.01 - HCBBS Forum
  6. Regarding the switching of water ring vacuum pumps - HCBBS Forum
  7. \"2017 Work Summary: Maintenance Equipment Management for Cracking Units\" (Statistics completed) - HCBBS Forum
  8. I’m a recent graduate in chemical engineering, a complete novice, and have just started working in the residue hydrogenation and dry fractionation role - HCBBS Forum
  9. Too much vulcanizing agent was used, causing the reaction temperature to rise rapidly – can cold hydrogen be used? - HCBBS Forum
  10. Pre-sulfidation issue of pre-hydrogenation catalysts - HCBBS Forum
  11. 【Daily Question Question 334】December 18, 2017 - HCBBS Forum
  12. Regarding the regular drainage of the steam drum - HCBBS Forum
  13. Is the inlet control valve of the feed gas compressor in the hydrogen production plant a pressure-controlled valve or a flow-controlled valve? - HCBBS Forum
  14. 【Q&A Question 039】2018.02.08 - HCBBS Forum
  15. 【Q&A Question 162】2018.06.11 - HCBBS Forum
  16. sodium hydrosulfide - HCBBS Forum
  17. 【Daily Question Question 275】2017.10.03 - HCBBS Forum
  18. 【Daily Question No. 213】2017.08.01 - HCBBS Forum
  19. [Q&A Question 067] 2018.03.08 - HCBBS Forum
  20. 【Daily Question Question 337】2017.12.21 - HCBBS Forum
  21. Determination of thick-ring aromatic hydrocarbons in white oil - HCBBS Forum
  22. Temperature rise in diesel hydrogenation unit - HCBBS Forum
  23. Discussion on the reasons for flushing the feed filter in the hydrogenation unit - HCBBS Forum
  24. Backpressure in the cold high-pressure separator - HCBBS Forum
  25. Regarding the circulating hydrogen volume in the hydrogenation unit - HCBBS Forum
  26. How does adsorption time affect the recovery rate? - HCBBS Forum
  27. 【Q&A Question 210】2018.08.04 - HCBBS Forum
  28. Programmable valve for pressure swing adsorption - HCBBS Forum
  29. Antiscalant for wax oil hydrogenation - HCBBS Forum
  30. The design institute will come tomorrow to guide us in starting up the fluidized bed - HCBBS Forum
  31. 【Daily Question Question 330】December 14, 2017 - HCBBS Forum
  32. 【Q&A Question 107】April 17, 2018 - HCBBS Forum
  33. 【Daily Question Question 322】2017.12.06 - HCBBS Forum
  34. Hydrogenated Life - HCBBS Forum
  35. [Q&A Question 245] 2017.09.03 - HCBBS Forum
  36. 【Daily Question Question 321】2017.12.05 - HCBBS Forum
  37. May I ask what process is used for the hydrotreatment of residue oil at Changling Petrochemical? - HCBBS Forum
  38. Book help - HCBBS Forum
  39. What is the capacity factor of pressure swing adsorption? - HCBBS Forum
  40. Handling of cracked reboiler tubes in the fractionation system - HCBBS Forum
  41. Which large hydrocrackers currently use the post-mixing process? - HCBBS Forum
  42. 【Q&A Question 205】2018.07.30 - HCBBS Forum
  43. Interlock for preheating recovery system of heating furnace - HCBBS Forum
  44. Does the hydrogenation unit require monitoring of hydrogen concentration? - HCBBS Forum
  45. 【Q&A Question 308】November 22, 2017 - HCBBS Forum
  46. 【Daily Question No. 256】2017.09.14 - HCBBS Forum
  47. What determines the outlet temperature of the hydrocracking fractionator? - HCBBS Forum
  48. 【Q&A Question 171】2018.06.20 - HCBBS Forum
  49. 28% ammonia solution - HCBBS Forum
  50. Reaction conversion rate, yield, selectivity, reaction rate - HCBBS Forum
  51. Water transport - HCBBS Forum
  52. Is it feasible to use sulfur-containing dry gas compression as a vulcanizing agent? - HCBBS Forum
  53. 【Q&A Question 098】April 08, 2018 - HCBBS Forum
  54. 【Daily Question Question 323】2017.12.07 - HCBBS Forum
  55. Sea friends, what is the hydrogen-to-oil ratio in your device design? - HCBBS Forum
  56. The CO content in medium-temperature gas is high! - HCBBS Forum
  57. Help: High levels of CO and CO2 in the hydrogen used in gasoline hydrogenation – what impact does this have on the product? - HCBBS Forum
  58. 【Daily Question No. 250】2017.09.08 - HCBBS Forum
  59. Hydrogenation Operator Exam Question Bank - HCBBS Forum
  60. 【Daily Question No. 202】2017.07.21 - HCBBS Forum
  61. [Q&A Question 089] 2018.03.30 - HCBBS Forum
  62. 【Daily Question Question 282】October 10, 2017 - HCBBS Forum
  63. The circulating hydrogen compressor makes a buzzing sound - HCBBS Forum
  64. Chinese version discussion post on the 505 turbine control platform? - HCBBS Forum
  65. How to perform material balance in dry gas hydrogen production plants - HCBBS Forum
  66. 【Q&A Question 345】December 29, 2017 - HCBBS Forum
  67. [Q&A Question 263] 2017.09.21 - HCBBS Forum
  68. 【Q&A Question 346】December 30, 2017 - HCBBS Forum
  69. Where can sodium hydrosulfide, a by-product of petroleum hydrogenation, be obtained? - HCBBS Forum
  70. Hydrogen-rich fraction, recycled hydrogen - HCBBS Forum
  71. What is the impact of water injection in the high-pressure air cooling system of hydrocracking on the cracking reactor? - HCBBS Forum
  72. Fire suppression steam for hydrogen production converter - HCBBS Forum
  73. 【Q&A Question 255】2017.09.13 - HCBBS Forum
  74. Calculations regarding hydrogen - HCBBS Forum
  75. How to check the purging quality during target shooting purging - HCBBS Forum
  76. 【Q&A Question 250】2017.09.08 - HCBBS Forum
  77. Methanol to hydrogen - HCBBS Forum
  78. Are there any companies that specialize in hydrogen optimization for refineries? - HCBBS Forum
  79. 【Q&A Question 057】February 26, 2018 - HCBBS Forum
  80. [Q&A Question 167] 2018.06.16 - HCBBS Forum
  81. Control of nitrogen oxide and sulfur dioxide levels in furnace flue gases - HCBBS Forum
  82. Request for an analysis of the reasons for the high ammonia content in the treated hydrogenated sulfur-containing dry gas - HCBBS Forum
  83. 【Q&A Question 032】2018.02.02 - HCBBS Forum
  84. How do you ensure the sealed discharge of pollutants during the shutdown of the facility? - HCBBS Forum
  85. Discussion on whether the thermal light fraction tank and the thermal light fraction gas air cooler can be eliminated in the hydrogenation process - HCBBS Forum
  86. Saturated vapor pressure - HCBBS Forum
  87. Discussion - HCBBS Forum
  88. 【Daily Question Question 290】November 4, 2017 - HCBBS Forum
  89. 【Q&A Question 062】2018.03.03 - HCBBS Forum
  90. Request piping diagrams for a 300,000-ton hydrogen refining and hydrogen production complex - HCBBS Forum
  91. Regarding the issue of recycled hydrogen - HCBBS Forum
  92. Reaction system feed temperature - HCBBS Forum
  93. There is a lot of information on additional hydrogen production - HCBBS Forum
  94. Why is the heat transfer oil expansion tank placed at such a high level? - HCBBS Forum
  95. Hydrocracking shutdown - HCBBS Forum
  96. Has anyone conducted a comparison between membrane separation and PSA separation processes for hydrogen production? - HCBBS Forum
  97. Heating furnace temperature and negative pressure distribution - HCBBS Forum
  98. 【Daily Question Question 343】December 27, 2017 - HCBBS Forum
  99. A question about the hydrocracking reaction mechanism? - HCBBS Forum
  100. Comparison between reciprocator clearance adjustment and gas volume adjustment without inert gas - HCBBS Forum
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