English — Forum #647 (Page 19/34)

1. Operation of the alcohol-water separation tower in low-temperature methanol washing - HCBBS Forum
2. There is mercury in the vapor line of the vacuum tower; does anyone know what’s causing this? - HCBBS Forum
3. In the single-tower pressurized side-line ammonia extraction process of the sewage stripping tower, is the valve at the bottom of the tower normally open or closed? - HCBBS Forum
4. Three-column distillation of methanol - HCBBS Forum
5. Butane stripping column operation - HCBBS Forum
6. How is the fluid sprayed out as it enters the tower through the pipeline? - HCBBS Forum
7. What does the intermediate reboiler in a distillation tower refer to? - HCBBS Forum
8. What impact will the emulsification of quench water in the quench water tower of an ethylene plant have on the cracking furnace? - HCBBS Forum
9. Distance issue from the filler tower feed inlet to the distributor - HCBBS Forum
10. Does a distillation tower need insulation? To what location should the tower top reflux be returned? - HCBBS Forum
11. Fractionating column operation - HCBBS Forum
12. Row towers and groups of towers - HCBBS Forum
13. Installation of the heaviest tower equipment for the MTO project in Nanjing Chemical Park is complete - HCBBS Forum
14. Why is it said that smoke tower integrated exhaust cooling towers pose a more serious problem than conventional cooling towers? - HCBBS Forum
15. Does the overhead line of the aromatic extraction xylene tower often suffer from pipe slugging? - HCBBS Forum
16. Under vacuum conditions, the distillation material is drawn up to the top of the tower – which pump is suitable? - HCBBS Forum
17. First oil transfer upon startup of the reformated xylene tower - HCBBS Forum
18. Energy saving and consumption reduction through five-tower differential pressure - HCBBS Forum
19. Are the upper nozzles on the head, except for N1 which is a tower-attached pipeline, all the same? - HCBBS Forum
20. When there is voiding or overlap in the products of a distillation column, how is the balance between the gas and liquid phases within the column maintained? - HCBBS Forum
21. Operation of C4/C5 separation tower - HCBBS Forum
22. No oil output from the vacuum tower after pressure reduction - HCBBS Forum
23. Question: When using 98% concentrated sulfuric acid to absorb sulfur trioxide exhaust gases, what values should be adopted for the empty tower gas velocity and spray density in the absorption tower? - HCBBS Forum
24. Iniesta announces he will leave Barcelona at the end of the season; Spanish media: His move to the Chinese Super League is a certainty - HCBBS Forum
25. Stirring tower for sulfur-containing wastewater treatment - HCBBS Forum
26. The temperature profile in the vacuum tower bed is reversed; seeking solutions - HCBBS Forum
27. What is the hole on top of the tower’s skirt called? What is its purpose? Thank you - HCBBS Forum
28. Operation of the catalytic stabilizer tower - HCBBS Forum
29. The main purpose of installing a C4 separation tower in the four-tower process for gas separation - HCBBS Forum
30. Absorber skirt design - HCBBS Forum
31. I want to know about the distance between fiberglass cooling towers and surrounding buildings - HCBBS Forum
32. Total sulfur in exhaust gas and flue gas data at the back of the absorption tower - HCBBS Forum
33. May I ask about using a resin adsorption tower to adsorb 31% hydrochloric acid, with steam for desorption, in a pressure vessel? - HCBBS Forum
34. Distillation column control - HCBBS Forum
35. How to determine the minimum reflux ratio for the distillation of ethanol-water, in a sieve tray tower - HCBBS Forum
36. Distillation column pressure control issue - HCBBS Forum
37. Job application due to abnormal pressure fluctuations in the heavy aromatic hydrocarbons reflux tank - HCBBS Forum
38. Discussion on atmospheric tower operation - HCBBS Forum
39. Problem of clogged water injection nozzles on the large pump of the air-cooled tower - HCBBS Forum
40. I have a question: what type of steel is used in the manufacture of towers? - HCBBS Forum
41. Large pressure fluctuations inside the 70t/h solvent regeneration tower - HCBBS Forum
42. I would like to ask the experts in the chemical industry and those working in petrochemicals: how to deal with rust on the walls of stabilizer towers - HCBBS Forum
43. What is the working principle and internal structure of a dust and desulfurization tower? - HCBBS Forum
44. Seeking guidance on the operating procedures for the wastewater stripping tower - HCBBS Forum
45. The pressure in the tower top reflux drum rose suddenly - HCBBS Forum
46. Why is the reflux temperature at the top of the benzene column maintained at 60°C in aromatic separation? - HCBBS Forum
47. Air-cooled tower issues - HCBBS Forum
48. Why is the reflux ratio increased after reducing the feed to the distillation tower? - HCBBS Forum
49. How to remove the catalyst from a DN1000 methanol synthesis tower? - HCBBS Forum
50. Delayed cracks occurred during the crack repair process of the adsorption tower - HCBBS Forum
51. After the fractionation tower was flooded, it became submerged again - HCBBS Forum
52. Corrosion and Protection of Refinery Circulating Water Towers - HCBBS Forum
53. What is used as the reference for the maximum load of the air separation tower? - HCBBS Forum
54. I would like to ask what the marking on the wall thickness of this tower means ? - HCBBS Forum
55. Design specifications for the RADFRAC distillation tower - HCBBS Forum
56. Thermal reflux in the vacuum tower - HCBBS Forum
57. What are the effects of drawing too much low-pressure nitrogen from the lower tower? - HCBBS Forum
58. Regarding the bottom pressure and liquid level of the distillation tower - HCBBS Forum
59. The internal components of the tower have not been determined yet. Is it okay to provide the data sheet for the pumps first? - HCBBS Forum
60. How to deal with too fast acid return speed during dust absorption? - HCBBS Forum
61. What are the consequences of a low vapor temperature at the bottom of a distillation column, and what causes the vapor temperature to be lower than the liquid temperature? - HCBBS Forum
62. How is the diameter of the steam pipeline in a distillation column calculated? - HCBBS Forum
63. Determination of the diameter and height of the spray scrubber tower - HCBBS Forum
64. [Discussion Thread 32] Pressure tests on vacuum tower vessels are conducted using internal pressure, and the test pressure can be increased under certain conditions. - HCBBS Forum
65. Technical Agreement for Methanol Distillation Column Packing and Internal Components ... - HCBBS Forum
66. Treatment of coking inside the tower - HCBBS Forum
67. Should a ladder be installed inside the skirt of the tower equipment? - HCBBS Forum
68. Exhaust gas absorption tower balance line - HCBBS Forum
69. Add a centrifuge to the circulating hydrogen desulfurization tower - HCBBS Forum
70. What is the difference between distillation columns with a bottom reactor and those without one? - HCBBS Forum
71. How to solve the problem of excessive deposits in the bottom pump of the polyester process tower - HCBBS Forum
72. Fluorine scrubber space velocity - HCBBS Forum
73. After double-volume regeneration of the chlor-alkali chelating resin column, the quality of the secondary brine is not up to standard. Could anyone provide an analysis of this issue? - HCBBS Forum
74. Components of acidic gases in the AS method desulfurization and deacidification tower - HCBBS Forum
75. Dear forum members, is it acceptable for the acidic gas flare and the chimney of the flue gas desulfurization tower to share the same steel structure? - HCBBS Forum
76. fractionating tower - HCBBS Forum
77. Asking for advice, drying tower problem - HCBBS Forum
78. Application of high-pressure magnetic flap level gauges in the ammonia scrubber tower of Lunan Chemical - HCBBS Forum
79. Find the permutation time of the tower - HCBBS Forum
80. The washing tower of the methanol purification unit in the Yulin Energy Chemicals improvement project was successfully hoisted into place - HCBBS Forum
81. Design of spiral ladders for storage tanks and towers, drafting - HCBBS Forum
82. What is the approximate temperature of the liquid nitrogen after passing through the subcooler and reaching the storage tank? It’s definitely impossible to be lower than the temperature at the top of the tower. If entering a tank at pressure zero at such temperatures. Won’t the liquid nitrogen boil and vaporize then? - HCBBS Forum
83. Pressure fluctuations in the ammonia vapor stripping tower – what are the causes? - HCBBS Forum
84. Delivery of tower equipment - HCBBS Forum
85. How to unload the catalyst from the DN1000 methanol synthesis tower - HCBBS Forum
86. Questions regarding the extraction efficiency of the extraction tower - HCBBS Forum
87. As one moves downward along the height of the tower, does the liquid phase load increase sharply with each extraction plate passed? ? ? - HCBBS Forum
88. Strength verification of tower equipment - HCBBS Forum
89. Crystallization blockage in the alkali absorption tower for chlorination reaction exhaust gases - HCBBS Forum
90. What are the functions of the various equipment in three-column distillation, what impurities are they used to remove, and how are the various process parameters controlled? Are there any specialized literature sources on this topic? - HCBBS Forum
91. The material of the tower container anchor bolts is Q345. How to choose the matching nuts? - HCBBS Forum
92. Principles for raising temperature in the synthesis tower - HCBBS Forum
93. Liquid flooding in air-cooled towers - HCBBS Forum
94. Problem of pump evacuation in the middle pump of the catalytic start-up fractionation tower - HCBBS Forum
95. How to effectively prevent false liquid level readings in various towers - HCBBS Forum
96. Issues with the effluent from the ammonia purification tower - HCBBS Forum
97. Alkali scrubber tower in ethylene plant - HCBBS Forum
98. Regarding the absorption dose in the absorption tower - HCBBS Forum
99. Dust removal and cooling efficiency of turbulent ball towers - HCBBS Forum
100. Debutanization tower control scheme - HCBBS Forum