English — Forum #647 (Page 20/34)

1. Issues with the oil injection volume in the alkali scrubber tower and the butter inhibitor injection volume? - HCBBS Forum
2. Low temperature methanol washing ammonia scrubber outlet ammonia content index - HCBBS Forum
3. Commissioning of glass panels for tower equipment - HCBBS Forum
4. Design of urea synthesis tower for the full-cycle production of aqueous solutions - HCBBS Forum
5. With an increase in the vapor pressure of hydrocarbons, and while the total pressure and temperature inside the tower remain unchanged, does the dry point of gasoline rise or fall? Please, dear expert teacher, explain it in detail. - HCBBS Forum
6. A newcomer is begging for guidance; I’ve really thought about it for days without figuring it out – design of sieve plate towers, gas-liquid equilibrium - HCBBS Forum
7. Regarding the cycle of the tower - HCBBS Forum
8. The use of partitioned towers in the Chinese market - HCBBS Forum
9. Transformed double-tower air lift final condenser - HCBBS Forum
10. After modifying the top condenser of our distillation column by adding a U-tube design, the column pressure tends to drop when the load increases, along with audible noises resulting from the collision of gas and liquid in the reflux tank. Could anyone please explain why this is happening? - HCBBS Forum
11. Strength calculation of the skirt foundation ring during the lifting of tower equipment - HCBBS Forum
12. Faults in air separation units – distillation towers: analysis and prevention - HCBBS Forum
13. Filter tower level and flow control - HCBBS Forum
14. Problems with distillation tower connections - HCBBS Forum
15. Brownish-red smoke emitted during flushing due to blockage of the fiber foam trap in the absorption tower - HCBBS Forum
16. Urgently address the steam issue in the reboiler at the bottom of the distillation tower - HCBBS Forum
17. I’m seeking help from experts in distillation. Recently, our plant installed a new distillation tower, and the analysis of the composition at the bottom of the tower shows fluctuations - HCBBS Forum
18. The water solubility of the pressurized tower is not up to standard - HCBBS Forum
19. How to seal the adsorption tower during long-term shutdown for PSA hydrogen production - HCBBS Forum
20. What are the effects of an excessive or insufficient gap between the liquid dropping plate of the tower and the bottom of the liquid receiving tray? - HCBBS Forum
21. Can steam injection at the bottom of the catalytic fractionation tower be discontinued? What are the impacts? - HCBBS Forum
22. Distillation column operation - HCBBS Forum
23. spray tower - HCBBS Forum
24. What is the cause of the up and down movement of the bottom liquid level gauge in the distillation tower? - HCBBS Forum
25. Corrosion in the ammonia scrubber tower in low-temperature methanol washing - HCBBS Forum
26. The weather is too cold; there are ice columns all around the cooling tower’s circulation pool. Are there any good ways to avoid this? - HCBBS Forum
27. Impact of internal leakage in the primary condenser of the methanol pre-distillation column on production - HCBBS Forum
28. Chlorine engineering resin tower water leakage - HCBBS Forum
29. Why is the methanol content in the exhaust gas leaving the exhaust gas scrubber high after maintenance and startup? - HCBBS Forum
30. What material is used for the secondary feed line at the top of the atmospheric and vacuum distillation unit? - HCBBS Forum
31. Answer regarding the increase in the number of trays in the distillation column - HCBBS Forum
32. Pressure of catalytic reaction flue gas before entering the flue gas desulfurization tower - HCBBS Forum
33. How to calculate the adsorption efficiency of a spray tower - HCBBS Forum
34. Diesel hydrocracking fractionator - HCBBS Forum
35. Regarding the positioning of the feed inlet in sieve plate towers - HCBBS Forum
36. What are the causes of fluctuations in liquid level and pressure in a liquefied gas separation tower? - HCBBS Forum
37. How to adjust when the feed composition of the reformed oil separation tower becomes heavier - HCBBS Forum
38. Distillation column operation - HCBBS Forum
39. What causes a sudden rise in the temperature at the top of the vacuum tower at startup? How to deal with it? - HCBBS Forum
40. I would like to ask experts: how is the substance that forms on the trays of the ammonia vaporization tower created? - HCBBS Forum
41. What factors affect the top temperature of the catalytic solvent regeneration tower? - HCBBS Forum
42. Water present at the outlet of the air-cooled tower - HCBBS Forum
43. Seeking tower design software - HCBBS Forum
44. Urgently seeking mechanical design information for saturated hot water towers - HCBBS Forum
45. Distillation column simulation: theoretical number of plates, actual number of plates, plate efficiency - HCBBS Forum
46. How should multiple reboilers be arranged around a single tower? I hope the experts here can give some guidance! ! ! - HCBBS Forum
47. Stabilizer tower - HCBBS Forum
48. Overtemperature in PSA adsorption tower - HCBBS Forum
49. Blockage in the bottom pump filter - HCBBS Forum
50. Safety distance issue for cooling towers - HCBBS Forum
51. Tower Internal Components Installation Plan.doc - HCBBS Forum
52. The gas-liquid flow pattern on the trays of a catalytic cracking stabilizer is ( ) flow - HCBBS Forum
53. Distillation column calculation - HCBBS Forum
54. Regeneration tower - HCBBS Forum
55. Plate tower: liquid layer thickness h at the top of the overflow weir - HCBBS Forum
56. Dry gas desulfurization tower - HCBBS Forum
57. The pressure difference fluctuates back and forth when the load on the purification tower becomes too high - HCBBS Forum
58. [Help] Sulfur poisoning of reforming catalyst – how does the overhead gas from the gasoline stabilizer tower change? Why - HCBBS Forum
59. 127- Urgent follow-up: Discussion on upgrading the droplet separator for the EDV process using a specialized vane separator in flue gas wet desulfurization scrubbers - HCBBS Forum
60. Tower equipment design issues - HCBBS Forum
61. How to calculate the wall thickness for a tapered tower with a height of 3.4 - HCBBS Forum
62. Corrosion issue of double flanges at the bottom of the tower - HCBBS Forum
63. Gasoline separation tower - HCBBS Forum
64. Reduce the vapor load at the top of the catalytic fractionation tower to save energy and reduce consumption - HCBBS Forum
65. On the determination of the overhead distillate from Column 1 in extractive distillation - HCBBS Forum
66. How does an ammonia vaporization tower produce concentrated ammonia solution? - HCBBS Forum
67. The first tallest tower of Zhongke Refining is hoisted in place - HCBBS Forum
68. How to determine large cooling towers from small cooling towers? ? - HCBBS Forum
69. Draw a product outlet line in the middle of the distillation tower - HCBBS Forum
70. Could you please tell me the application ranges, principles, and differences between packed towers and plate towers? Urgent request online~ - HCBBS Forum
71. What is the most effective way to remove corrosion products from the inner wall of propylene towers in the petrochemical industry? - HCBBS Forum
72. Styrene plant recycle tower - HCBBS Forum
73. I have a headache problem (cooling tower). Can any expert come in and give me some advice? - HCBBS Forum
74. May I ask that for a packed tower, methanol needs to be fed in; it cannot be introduced at the bottom, only from the top - HCBBS Forum
75. The catalytic cracking reaction has been started; how can the air from the top cooler of the fractionation tower be expelled into the crude gasoline tank? Is there a dedicated steam line? - HCBBS Forum
76. How is the height of the tower’s base determined? - HCBBS Forum
77. The stabilizer tower product contains hydrogen sulfide - HCBBS Forum
78. Desulfurization tower design - HCBBS Forum
79. The methanol washing tower for Inner Mongolia Rongxin Chemical’s coal-based ethylene glycol and polyoxymethylenemethane circular economy demonstration project was successfully lifted into place - HCBBS Forum
80. Are there any forum members familiar with the ammonia synthesis tower process used in Anchun, Hunan? - HCBBS Forum
81. Analysis on the reasons why the pilot-operated safety valve at the top of the circulating hydrogen desulfurization tower does not trip before the tripping pressure is reached - HCBBS Forum
82. Determination of the welding coefficient for tower equipment - HCBBS Forum
83. Acid gas heat tracing at the top of the solvent regeneration tower - HCBBS Forum
84. A fault in the three-way valve of the hydro-coking desulfurization pump has resulted in insufficient preheating of the new tower, which affects the equipment. How should this be addressed? - HCBBS Forum
85. Ethylene tower - HCBBS Forum
86. How to install the reinforcement ring at the diameter-changing section of the tower? - HCBBS Forum
87. Effect of increasing and decreasing distillation column reflux on column pressure - HCBBS Forum
88. Design issues of packed towers - HCBBS Forum
89. What causes the increase in distillation column pressure drop? - HCBBS Forum
90. Pressure at the top of the absorption tower - HCBBS Forum
91. Regarding how to change the temperature measurement method in the pressure swing adsorption tower, is there any new instrument? - HCBBS Forum
92. How does salt scaling form on distillation column trays? - HCBBS Forum
93. Distillation column liquid phase line velocity - HCBBS Forum
94. 【Purchase Request】Ethylene, hydrogen, nitrogen, hexane, dehydrating and deoxygenating purification tower equipment - HCBBS Forum
95. Why is a packed tower used instead of a plate tower in liquefied gas desulfurization towers? - HCBBS Forum
96. Heat accumulation issue in empty tower cyclic spraying - HCBBS Forum
97. What is the difference between a hyperbolic cooling tower and a mechanical tower? - HCBBS Forum
98. I have a question regarding the number of trays in an distillation column simulated using ASPEN - HCBBS Forum
99. Calculation of the specifications for wash towers - HCBBS Forum
100. Starting up the vacuum tower for oil recovery - HCBBS Forum