English — Forum #723 (Page 600/642)

1. HYSYS unit settings - HCBBS Forum
2. Emergency plan for heat transfer oil leaks and detailed procedures for welding repairs at pipeline leaks - HCBBS Forum
3. Because of affection, it becomes a mistaken love - HCBBS Forum
4. Feed-grade calcium hydrogen phosphate - HCBBS Forum
5. 【Daily Question】How should the reflux ratio of a distillation column be adjusted under high load on July 14? - HCBBS Forum
6. 【Dedicated effort from the Process Division team】Three-phase upload of Haichuan PPT summaries – extensive sharing, with options to suit your needs - HCBBS Forum
7. Zhucia is really tragic - HCBBS Forum
8. Heating furnace for diesel and gasoline hydrogenation unit - HCBBS Forum
9. Those are not the youth meant for reminiscence - HCBBS Forum
10. To understand explosion-proofing issues, what materials should be consulted? - HCBBS Forum
11. Regarding the issue of the pipeline diameter downstream of the safety valve - HCBBS Forum
12. Introduction to flanges, classification of flanges, types of flange sealing, etc - HCBBS Forum
13. How to enter fuming sulfuric acid in Aspen? - HCBBS Forum
14. Does the hydrogen desulfurization tower in the coking gasoline and diesel hydrogenation process develop salt deposits? - HCBBS Forum
15. Common mistakes in writing professional title papers - HCBBS Forum
16. Let’s discuss the issues related to the methanation compressors for coke oven gas - HCBBS Forum
17. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for participation； Question 111 - HCBBS Forum
18. Market trends of methanol on July 8 - HCBBS Forum
19. Regenerated acidic water - HCBBS Forum
20. Standards for crankshaft wear amount - HCBBS Forum
21. How to detect leaks in shell and tube heat exchangers - HCBBS Forum
22. 【Instrument Novice】Seeking help regarding issues with the online urea concentration meter - HCBBS Forum
23. If the guaranteed current is greater than the start-up current of the mass flow meter - HCBBS Forum
24. On liquid seals in π-tube and U-tube configurations - HCBBS Forum
25. Seek CAD drawings for slurry-type enamel-stamped mixer - HCBBS Forum
26. Did anyone use a centrifuge for the preliminary preprocessing, and what was the outcome? - HCBBS Forum
27. Seeking help regarding leakage at the flange of the heat exchanger head - HCBBS Forum
28. 【Daily Question】Chemical Engineering Principles 107: Heat Load and Heat Transfer Rate (July 12) - HCBBS Forum
29. Producing LNG from coke oven gas: how much is the cost to produce 1 cubic meter of LNG? - HCBBS Forum
30. 【Weekly Topic】-009- A decrease in the sludge volume index can render the sludge inactive - HCBBS Forum
31. It’s really hard to understand how to choose a electromagnetic flowmeter for Cologne. Seeking advice - HCBBS Forum
32. caesarii background color issue - HCBBS Forum
33. Is the piston of a reciprocating machine subject to an upward buoyant force during normal operation? - HCBBS Forum
34. Is gas-water separation and phenol-amine recovery carried out during the gasification stage or the ammonia synthesis stage? - HCBBS Forum
35. Regarding the **dimethyl ether process - HCBBS Forum
36. The situation of retail investors in the stock market - HCBBS Forum
37. Let’s exchange information on the anti-freezing, anti-high-temperature, and wind-proof measures for air coolers used with air compressor units! - HCBBS Forum
38. Which is the most common and frequently used method for leak testing pressure vessels? - HCBBS Forum
39. How to set the pressures for pumps/valves during Aspen process simulation - HCBBS Forum
40. Problems that often occur in propylene refrigeration compressors during startup, shutdown, and normal operation, along with solutions - HCBBS Forum
41. What is the pressure generated by water at different temperatures? - HCBBS Forum
42. Analysis of ammonia synthesis catalyst poisoning in the dihydric alcohol production process - HCBBS Forum
43. Problem with exhaust at the high point of gas pipelines? - HCBBS Forum
44. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 252 - HCBBS Forum
45. The reason for the red coloration of ammonium thiocyanate - HCBBS Forum
46. Differences among various isothermal transformation techniques - HCBBS Forum
47. What are the design requirements for major hazard sources? - HCBBS Forum
48. Has this year’s registration for the surveying exam been canceled? - HCBBS Forum
49. It seems like having a second-level construction engineer certificate isn’t very useful - HCBBS Forum
50. I recently invested in PetroChina; I used to work there before quitting. - HCBBS Forum
51. Where can I find hydrogen cyanide produced as a byproduct of acrylonitrile? Please advise - HCBBS Forum
52. Why are clay bricks preferred over high-alumina bricks or silica bricks for the coke oven roof area, small flues, and flues? - HCBBS Forum
53. I just realized that the moderators’ salaries from last month haven’t been paid - HCBBS Forum
54. Looking for recommendations for domestic online pH meters - HCBBS Forum
55. Actual discharge volume of reciprocating compressor - HCBBS Forum
56. Is water or air used in the leakage test? - HCBBS Forum
57. Workplace Debate Episode 57: Should We Add Supervisors on WeChat? - HCBBS Forum
58. If the SS level in the water after flotation treatment is still high, can another sedimentation tank be installed to allow further sedimentation? - HCBBS Forum
59. Where can I take the exam to obtain a certification as an explosion protection inspector? - HCBBS Forum
60. Current parameters of high-voltage switches - HCBBS Forum
61. I missed 10,000 orders in one minute; I was being willful too - HCBBS Forum
62. May I ask if a damper is needed for the vulcanizing agent pump? - HCBBS Forum
63. When selecting a centrifugal pump, the consideration of net positive suction head - HCBBS Forum
64. What are the causes of piston breakage in reciprocating compressors? - HCBBS Forum
65. Can flow rate be determined by measuring velocity? ! - HCBBS Forum
66. 【Daily Question】July 16 – On the efficiency of pumps and fans (First 80 participants get +2 points; an additional 3–8 points for correct answers...) - HCBBS Forum
67. Adjusting the clearance issue in multi-stage pumps - HCBBS Forum
68. The pH meter’s main display is not working properly - HCBBS Forum
69. What type of valve should be used for the outlet valve of a Roots blower? - HCBBS Forum
70. Requirements of heat transfer oil systems for expansion tubes - HCBBS Forum
71. I graduated with a degree in Applied Chemical Engineering and have been working in the chemical industry for two years. Can I apply to become a certified safety engineer now? - HCBBS Forum
72. 【Daily Question】July 9: What is the turbine warm-up time? - HCBBS Forum
73. Seam tear in jacketed reactor - HCBBS Forum
74. Here we go again, which shows that my foundation in physical chemistry is really poor! But I still came to figure it out. - HCBBS Forum
75. Blueing of the base metal around the weld - HCBBS Forum
76. 【Daily Question】July 17: Regarding magnetic pumps (centrifugal type), which statement is incorrect? (First 80 participants get +2 points; an additional 3–8 wealth points for those who answer correctly) - HCBBS Forum
77. WINCC Global Script Application - HCBBS Forum
78. Why is a lockhopper flushing water cooler needed? - HCBBS Forum
79. Design issues for the supports of horizontal equipment? - HCBBS Forum
80. The return flow rate of the centrifugal pump is too low - HCBBS Forum
81. Power of attorney for the principal responsible person - HCBBS Forum
82. How to weld or bond a vibrating screen mesh to the frame - HCBBS Forum
83. Seeking assistance regarding liquefied natural gas pumps and pipeline centrifugal pumps - HCBBS Forum
84. In chemical production, how do we define tower equipment? - HCBBS Forum
85. Steam Jet Vacuum Pump Purchase Data Sheet - HCBBS Forum
86. What are the ongoing methanol-to-olefins projects across the country? - HCBBS Forum
87. Could someone who is good at this please help me figure out the most appropriate translation? - HCBBS Forum
88. An article I really like – Motherly love deserves to be repaid - HCBBS Forum
89. Problems with diaphragm pumps - HCBBS Forum
90. Relationship between pressure and LPG quality - HCBBS Forum
91. Vibration of the centrifugal compressor increases - HCBBS Forum
92. Can the positive and negative poles of the electromagnetic coil in an electrical positioner be swapped? - HCBBS Forum
93. Problems with Siemens PLCs - HCBBS Forum
94. Issues with measurement display and alarms - HCBBS Forum
95. Single-flange level gauge manufacturers - HCBBS Forum
96. 4 herbal teas to relieve insomnia - HCBBS Forum
97. Forward and reverse directions of the stop valve - HCBBS Forum
98. Price issues for CLASS series pipe flanges and PN series pipe flanges - HCBBS Forum
99. What should be done regarding the severe corrosion within the circulating water pipeline due to prolonged shutdown? - HCBBS Forum
100. Questions regarding four-pass heat exchangers; seeking advice from experts - HCBBS Forum