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  1. May I ask why the top of the tower is so curved in this picture? - HCBBS Forum
  2. Request equipment layout diagram for the three-column distillation process workshop - HCBBS Forum
  3. Material of potassium permanganate spray tower - HCBBS Forum
  4. Adjustment of the reflux ratio in industrial distillation columns - HCBBS Forum
  5. Calculation problems for tower vessels - HCBBS Forum
  6. Please help explain why the diesel dry point is high when the coke tower is preheated. Please ask the experienced master to answer, thank you - HCBBS Forum
  7. How should rust at the bottom of the tower foot flange be dealt with? - HCBBS Forum
  8. Hot side bypass at the tops of each vapor column - HCBBS Forum
  9. How is the foundation ring plate of the tower skirt calculated, as it is a single piece of plate? - HCBBS Forum
  10. Find the formula for the p-xylene disproportionation stripping tower. - HCBBS Forum
  11. Seismic analysis of desulfurization tower - HCBBS Forum
  12. Low pressure difference in the distillation tower - HCBBS Forum
  13. Dear sea friends, who are the main manufacturers of tower internals and metal packing at present? - HCBBS Forum
  14. Oxygen content detector for vacuum distillation towers - HCBBS Forum
  15. The internals for the ammonia synthesis tower at Cassali have arrived at the ethylene glycol project site - HCBBS Forum
  16. Other brands of circulation pumps for adsorption towers besides Foss - HCBBS Forum
  17. Kunshan Keloanz acid and alkali waste gas spray tower, acid mist washing tower, wet dust collector - HCBBS Forum
  18. Discussion on the stratification of glass plates in catalytic dry gas desulfurization towers - HCBBS Forum
  19. Advantages and disadvantages of the ammonia extraction process from the low-pressure side line of a single tower - HCBBS Forum
  20. Share your understanding of the evaporative hot water tower in the four-nozzle coal-water slurry gasification furnace system - HCBBS Forum
  21. Function of the bottom heating steam coil in the dry gas seal liquid tank before the dry gas desulfurization tower - HCBBS Forum
  22. The downcomer of the bubble column fails to establish an effective liquid seal; seek a solution! ! ! - HCBBS Forum
  23. Distillation tower - HCBBS Forum
  24. Material issues of the cooling tubes in chlorine-drying bubble columns - HCBBS Forum
  25. What is the nitrogen at the top of the methanol thermal regeneration tower used for? Dalian University of Technology’s low-temperature methanol washing - HCBBS Forum
  26. During the distillation startup process, why should the reflux liquid levels in the pressurized column and the atmospheric column be kept low? - HCBBS Forum
  27. Issues with the quality of water used for filling the adsorption tower - HCBBS Forum
  28. How to repair damage on the outer surface of petrochemical circulating water towers? - HCBBS Forum
  29. Atmospheric tower 8.4 - HCBBS Forum
  30. In wet desulfurization for coking, the injectors in the desulfurization tower get clogged roughly once a month. Are there any good solutions? - HCBBS Forum
  31. What should be done if a distillation column experiences flooding? - HCBBS Forum
  32. The ammonia nitrogen level in the water fed into the stripping tower is 7,000; after evaporation, it goes into the dilute ammonia water tank. A condenser must be installed in between, right? - HCBBS Forum
  33. Severe liquid carryover at the outlet of the liquefied gas desulfurization tower? - HCBBS Forum
  34. The first high tower of Sinochem Refining’s coal-to-hydrogen plant has been installed - HCBBS Forum
  35. Distillation tower discharge position - HCBBS Forum
  36. The difference between an adsorption cylinder and an adsorption tower - HCBBS Forum
  37. Relationship between argon fraction and the night air volume in the upper column - HCBBS Forum
  38. When will the short circulation line between the hydrogenation reactor and the quench tower be put into operation? - HCBBS Forum
  39. Why does the reactor overheat during a CO conversion reaction shutdown, while the synthesis tower does not overheat and instead its temperature drops during a synthesis shutdown? - HCBBS Forum
  40. May I ask: is the nitrogen that condenses and liquefies as it rises to the main cooler from the air coming out of the lower column, all of the nitrogen contained in the total amount of air exiting that lower column? - HCBBS Forum
  41. What are the considerations for the nozzle placement design in a column using MD trays? - HCBBS Forum
  42. What are the methods for corrosion protection at the top of a catalytic fractionation tower? - HCBBS Forum
  43. A calculation problem related to a fractionating tower; let’s do the math - HCBBS Forum
  44. Principle of the fiber foam trap in the dry absorption tower of the acid production system - HCBBS Forum
  45. Ethylene tower - HCBBS Forum
  46. Oil circulation in the middle section of the distillation tower - HCBBS Forum
  47. Can the water quality requirements for feeding water at the top of the distillation tower be reduced? - HCBBS Forum
  48. Alcohol distillation tower - HCBBS Forum
  49. How is the diameter of a liquefied gas desulfurization tower determined? - HCBBS Forum
  50. Strength verification of packing supports (support rings) in packed towers - HCBBS Forum
  51. How to resolve these warnings when using PROⅡ to simulate the triple-column distillation of methanol? - HCBBS Forum
  52. How are large towers made round, and what are the same processes used? - HCBBS Forum
  53. Liquid in the dry gas desulfurization tower - HCBBS Forum
  54. I would like to ask everyone how to design the external circulation slurry tank for desulfurization towers - HCBBS Forum
  55. For the beautification of chimneys and cooling towers, which pattern looks the best? - HCBBS Forum
  56. I would like to ask for advice from all of you experts! Issues related to the side-line stripping tower of the vacuum distillation column? - HCBBS Forum
  57. Urgent! Urgent! Urgent! I need an equipment layout diagram for the ammonia synthesis off-gas treatment section and a CAD diagram of the desulfurization tower! ! - HCBBS Forum
  58. Who should be responsible for this? Operating procedures for enamel towers - HCBBS Forum
  59. Depressurization tower, with positive pressure at the bottom of the tower - HCBBS Forum
  60. Effect of the inlet temperature of the synthesis tower on the temperature of the catalyst bed - HCBBS Forum
  61. I would like to ask experts: how is the substance that forms on the trays of the ammonia vaporization tower created? - HCBBS Forum
  62. Seeking help: Selection of a safety valve for the vapor line at the top of a methanol distillation tower - HCBBS Forum
  63. Internal structure of the Cassali reactor - HCBBS Forum
  64. Questions about the fractionation tower - HCBBS Forum
  65. Can the tower internals be installed at the manufacturer’s facility and then transported as a whole to the project site? - HCBBS Forum
  66. Reasons for the decline in separation efficiency of the methanol distillation tower - HCBBS Forum
  67. Plan layout diagram of the methanol three-column distillation plant - HCBBS Forum
  68. Tadić scores, Alvarez adds another goal; Ajax beats Greek team 2-0 and advances to the main round - HCBBS Forum
  69. Vaporizer, cyclone separator, water scrubber tower - HCBBS Forum
  70. Do distillation towers operated under vacuum require safety valves? - HCBBS Forum
  71. We have a 800,000-ton hydrogenation refining unit; during operation, the reflux tank at the top of the desulfurization tower often fills up. A new line was added to send naphtha to the tank farm, but since the tanks in that area are external floating-roof tanks equipped with breather valves, hydrogen sulfide gas spreads throughout the plant - HCBBS Forum
  72. Reduction of DN3400 methanol column in Unit B of the 500,000 tons/year DME methanol plant in Anhui Haoyuan New Area is completed - HCBBS Forum
  73. Why are the liquid levels at the bottom of the distillation tower experiencing regular and significant fluctuations? - HCBBS Forum
  74. I just took my daughter to the Leifeng Tower by West Lake, and she asked what connection there is between the Leifeng Tower and Lei Feng, who was known for helping others - HCBBS Forum
  75. The absorption rate issue in the absorber tower in delayed coking - HCBBS Forum
  76. Pipeline connecting the slurry tower to the pump - HCBBS Forum
  77. distillation tower - HCBBS Forum
  78. What causes a sudden rise in temperature at a certain point in the methanol synthesis tower? - HCBBS Forum
  79. The distillation tower transformed into a desulfurization tower - HCBBS Forum
  80. In the heavy aromatic hydrocarbons tower, when the liquid level is 50% high, the interlock valve for the vent line closes - HCBBS Forum
  81. Regarding the pressure of the air separation air-cooling tower - HCBBS Forum
  82. What does t/t mean in a distillation tower? - HCBBS Forum
  83. Questions regarding equipment insulation support structures, manhole plugs, towers, etc - HCBBS Forum
  84. Is there a deviation in the return water pipe at the top of the water cooling tower, causing no water to flow out from one of the pipes? - HCBBS Forum
  85. How to control the tower pressure in an absorption tower when producing high-concentration ammonia water - HCBBS Forum
  86. Fluctuations in coking cuttower operation - HCBBS Forum
  87. Is there any danger when disassembling or loading the activated carbon filler in an activated carbon adsorption tower? - HCBBS Forum
  88. Discussion on issues in ammonia vaporization towers - HCBBS Forum
  89. Calculation of wastewater volume for water spray towers - HCBBS Forum
  90. How to use Aspenplus to simulate the composition of the material extracted at the tower top under different tower top temperatures - HCBBS Forum
  91. Leak in the water cooler at the top of the methanol regeneration tower - HCBBS Forum
  92. How to switch in case of a failure in the adsorption tower for hydrogen production via pressure swing adsorption - HCBBS Forum
  93. What to do if the cooling tower is inefficient - HCBBS Forum
  94. Liquid flooding problem in distillation columns - HCBBS Forum
  95. Are the calculation methods for tray pressure drop the same for bubble columns and sieve trays? - HCBBS Forum
  96. Hagao wins the bid for Shenhua Yulin methanol synthesis tower project - HCBBS Forum
  97. Current operating status of the distillation tower - HCBBS Forum
  98. AMSIM module of PROⅡ for absorber simulation problems - HCBBS Forum
  99. May I ask, for an enamel tower with a diameter of DN1200, what is the maximum size that the side manhole can be opened to? - HCBBS Forum
  100. Course design on the addition of a packing tower to a storage tank - HCBBS Forum
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