English — Forum #723 (Page 634/642)

1. CNG refueling station control valve - HCBBS Forum
2. How to maintain pressure for two substances that react with each other using a liquid nitrogen evaporation system - HCBBS Forum
3. The HTRI 7 input interface is too bright; it’s dazzling! - HCBBS Forum
4. Pressure drop in structured packing towers - HCBBS Forum
5. The sports edition and the food edition are looking for young talents - HCBBS Forum
6. Question 6 in the morning session of the 2013 case study - HCBBS Forum
7. For working in chemical engineering processes, what software is needed? And if available, are there enough of it? - HCBBS Forum
8. After working for so many years, are you tired? - HCBBS Forum
9. Gas distribution pipe, liquid distribution pipe. - HCBBS Forum
10. Does electric heating in Zone 2 with explosion protection need to be explosion-proof as well? - HCBBS Forum
11. 【Weekly Topic】Discussion on the selection of packing sealing materials (second week of June) - HCBBS Forum
12. Chemical plant technology or human resources? - HCBBS Forum
13. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for those who participate； Question 67 - HCBBS Forum
14. SHARE A COUPLET - HCBBS Forum
15. Weld joint coefficient - HCBBS Forum
16. Are there any time limits for the meteorological data used as a basis for design? - HCBBS Forum
17. Effect of MDEA rich liquid ammonia concentration on regeneration efficiency - HCBBS Forum
18. Brands of pumps commonly used in coal chemical plants - HCBBS Forum
19. Removal of VOCs from exhaust gas using the CADC adsorption-desorption method - HCBBS Forum
20. What to do about severe corrosion of the flame arrester in the acidic gas water scrubber tower? ! - HCBBS Forum
21. Regarding certification for pressure vessel operation - HCBBS Forum
22. Siphon oil cooler - HCBBS Forum
23. Shanghai Enchi is recruiting: 4 engineers, 3 business development professionals, and 1 project manager - HCBBS Forum
24. Association **Question Set: Step-by-Step Adjustment - HCBBS Forum
25. Is a basic qualification certificate required to register for the chemical engineering exam? - HCBBS Forum
26. Modification of asphalt - HCBBS Forum
27. How should the safety valve on the corresponding flash tank be calculated in the event of a failure of the control valve? - HCBBS Forum
28. I have a few simple questions regarding catalytic reforming; I would appreciate it if experts could help answer them - HCBBS Forum
29. 【Daily Question】2015.06.11 Failure modes of pressure vessels (2 wealth points for replies; +3–8 additional wealth points for correct answers) - HCBBS Forum
30. A new type of crude oil has been used, one with a lower specific gravity. What should be noted - HCBBS Forum
31. Is the separation of tar and moisture effective? - HCBBS Forum
32. The online school offering training for the Chemical Engineering professional exams has relatively good quality - HCBBS Forum
33. Circulating water optimization - HCBBS Forum
34. What to do if the cross-sectional area of standard flange bolts is insufficient - HCBBS Forum
35. fractionation - HCBBS Forum
36. I’ve been working as an instrument technician for a few years and feel lost - HCBBS Forum
37. 【Daily Question】Chemical Engineering Principles 076: Settling Capacity (June 10) - HCBBS Forum
38. How to adjust pH in coagulation sedimentation, and how to select chemicals - HCBBS Forum
39. Regarding internal leakage of the valve, it prevents the filter from being removed and cleaned. How to avoid such issues in the future before purchasing and driving - HCBBS Forum
40. I went to get the documents, and the staff asked me to leave the registration form, saying to come back after the 17th. What’s going on? - HCBBS Forum
41. Should the rotor of the coking gas fan be lubricated with grease? - HCBBS Forum
42. Problems with the furnace temperature in dry quenching coke ovens - HCBBS Forum
43. International fire pump brands - HCBBS Forum
44. Hydrogen feed pump balance line pressure - HCBBS Forum
45. Regarding PKS system block packaging - HCBBS Forum
46. Heat exchangers: Advantages and disadvantages of hydraulic expansion and mechanical expansion - HCBBS Forum
47. Why doesn’t air pressure have a minimum temperature requirement - HCBBS Forum
48. Urgent regarding the stuffing box heat exchanger - HCBBS Forum
49. Regarding the so-called modern enterprises - HCBBS Forum
50. 【Daily Question】June 11: Methods for adjusting flow rate in centrifugal pumps and reciprocating pumps (First 100 participants + 2 correct answers = additional 3–8 points) - HCBBS Forum
51. Question: Why is nitrogen used as the heat-extraction fluidized air outside the SMTO regenerator? - HCBBS Forum
52. Selection of safety equipment for hot water and steam - HCBBS Forum
53. Weekly topic: 5 Wealth points for correct answers, 2 Wealth points for participation； Question 68 - HCBBS Forum
54. Pressure swing adsorption in hydrogen production plants - HCBBS Forum
55. Research on the direction of dust removal technologies for coke ovens - HCBBS Forum
56. Seeking purchase of gas-liquid separators for oil production wells - HCBBS Forum
57. Questions about activated sludge - HCBBS Forum
58. Comparison of salary and benefits in the chemical industry! - HCBBS Forum
59. Case 11, afternoon, 2013 - HCBBS Forum
60. I would like to ask about the use of calcium powder in potassium sulfate production - HCBBS Forum
61. 200 cable tray - HCBBS Forum
62. Desulfurization spray tower baffle mist eliminator - HCBBS Forum
63. Questions regarding the turbine control oil system - HCBBS Forum
64. After the shipwreck on the Yangtze River, would you still dare to visit the Three Gorges? - HCBBS Forum
65. 【Daily Question】Wastewater Knowledge - 092 (June 5) (2 points for answering, 4 points for a correct answer) - HCBBS Forum
66. Why hasn’t the registration for the Juhua exam started this year? - HCBBS Forum
67. PNEUROP Practice Regulations for Reciprocating Compressors in the Process Industry - HCBBS Forum
68. May I ask how many types of arrangements across the center exist? How are the requests and considerations made separately? - HCBBS Forum
69. 【Daily Question】Wastewater Knowledge - 091 (June 4) (2 points for answering, 4 points for a correct answer) - HCBBS Forum
70. 【Daily Question】Fundamentals of Chemical Engineering 078: Multi-layer Heat Conduction (June 12) - HCBBS Forum
71. What will happen if the base ring of the skirt seat is not thick enough, say, by a significant amount? - HCBBS Forum
72. Seek advice on the wastewater issues associated with the production of 2-ethylanthraquinone using the phthalic anhydride method - HCBBS Forum
73. Who knows where to buy the printed version of the question bank for the Registration Chemical Engineer Practice Qualification Examination guide - HCBBS Forum
74. Cable area calculation method - HCBBS Forum
75. Aluminum melt reaction - HCBBS Forum
76. What are the new processes for treating waste acid (generated during purification) in sulfuric acid production? - HCBBS Forum
77. I would like to consult you all regarding some technical details of the major boiler maintenance - HCBBS Forum
78. How is Zongxin Wanfeng in catalyst production? - HCBBS Forum
79. Buffered check valve (non-slam) - HCBBS Forum
80. Atmospheric furnace operation - HCBBS Forum
81. Differences between single-socket pipe collars of the same size but with different connected main pipe sizes - HCBBS Forum
82. Abnormal noise from the compressor - HCBBS Forum
83. Fatigued containers -- How to address excessive cycle counts beyond the limits specified in JB4732? - HCBBS Forum
84. Case 14, afternoon 2013 - HCBBS Forum
85. Which models of benzene detectors perform well in the oil loading areas of refineries? - HCBBS Forum
86. 【Daily Question】Chemical Engineering Principles 069: Co-current Operation (June 3) - HCBBS Forum
87. Superheater perforation - HCBBS Forum
88. Combustible and toxic gas detection system (GDS) - HCBBS Forum
89. Operating procedures for voltage fluctuations and power outages in chemical plants - HCBBS Forum
90. Discuss the status of instrument technicians in factories - HCBBS Forum
91. Selection of hydraulic oil flow meter - HCBBS Forum
92. Olefin separation - HCBBS Forum
93. A quality issue with aviation fuel - HCBBS Forum
94. Seeking advice on the crystallization conditions for the reaction between NH3 and CO2 - HCBBS Forum
95. The value of the bearing side clearance at the horizontal midplane is half of the top clearance - HCBBS Forum
96. Quality of coked coke production - HCBBS Forum
97. What is required for instrument inspection, and what is the process? - HCBBS Forum
98. What are the specifications for liquid ammonia outlet devices? - HCBBS Forum
99. ★★One-on-one consultation with technical experts for mechanical equipment★★Come here to consult experts if you have any questions★★Welcome to the mechanical equipment section★ - HCBBS Forum
100. Food Topic 14 – How to Make Cooked Winter Melon Crisp and Green - HCBBS Forum