English — Forum #337 (Page 103/163)

1. Basic Process Knowledge (Multiple Choice) 20180806 - HCBBS Forum
2. Installation of the fan - HCBBS Forum
3. The property owner, the design institute, and the construction company all “look” the same - HCBBS Forum
4. Could everyone please help explain what the logic in these PID diagrams means? - HCBBS Forum
5. Where should the exhaust gas from the safety valve outlet, the breather valve outlet of the flammable liquid storage tank be connected? How does your factory handle it? - HCBBS Forum
6. MMA process - HCBBS Forum
7. PID diagram - HCBBS Forum
8. Liquid nitrogen flow rate - HCBBS Forum
9. May I ask if the non-condensable gases from the primary condenser, along with the primary condensate, can be fed into the secondary condenser? ? - HCBBS Forum
10. Excuse me, what does “inspection point” mean? What is a “point”? - HCBBS Forum
11. The meaning of flowchart graphic symbols - HCBBS Forum
12. Safety issues related to the combustion of flammable exhaust gases in boilers - HCBBS Forum
13. The new tag categorization for the “One question per day” section in the six areas under the Petrochemical Division has been completed. All question creators are requested to use the new tag “Every...” when posting new questions. - HCBBS Forum
14. I have a question - HCBBS Forum
15. Synthetic ammonia design - HCBBS Forum
16. How is the amount of vapor generated by a liquid when it is boiling calculated, for example, for methanol and dichloroethane? - HCBBS Forum
17. Is a 15% **solution a pressure pipeline - HCBBS Forum
18. 【HVAC Version】Daily Question 20180622 - HCBBS Forum
19. Size of the circulating water pool - HCBBS Forum
20. Flame color - HCBBS Forum
21. Does anyone know an agent for Germany’s Lurgi methanol synthesis technology? - HCBBS Forum
22. Torch water seal - HCBBS Forum
23. We have Class B design qualifications for water treatment, but regarding methanol pipelines, steam pipelines, and dichloroethane pipelines, it should fall under.... - HCBBS Forum
24. Fundamentals of Manufacturing Processes (Multiple Choice) 20181110 - HCBBS Forum
25. Why is the unit of the dirt coefficient (m2*℃)/W? rather than °C/(W*m2) - HCBBS Forum
26. Methanol synthesis: pressure swing adsorption cannot separate hydrogen from carbon monoxide - HCBBS Forum
27. 【HVAC Version】Daily Question 20180614 - HCBBS Forum
28. Detailed introduction to the structure, working principle, and usage precautions of glass-lined reaction vessels - HCBBS Forum
29. Height of the external pipe gallery in the factory area - HCBBS Forum
30. Are there any specific requirements regarding the composition of jet fuel hydrogenation feedstocks and the proportion of feedstocks used in secondary processing? - HCBBS Forum
31. Seek the calculation method for oil pipeline operation costs - HCBBS Forum
32. Questions regarding the requirements of chemical industry old factories and building codes - HCBBS Forum
33. May I ask what software people use for 3D renderings of factories? Which one is good? - HCBBS Forum
34. Recycling technology for residual and waste liquids from ethylene glycol plants - HCBBS Forum
35. What principle is this based on? - HCBBS Forum
36. How to eliminate the water hammer effect - HCBBS Forum
37. What does a level gauge, as a protective device to prevent leaks, refer to? ? How is it usually done? - HCBBS Forum
38. Basic Process Knowledge (Multiple Choice) 20180815 - HCBBS Forum
39. Is Fenton oxidation for treating high-concentration wastewater considered a hazardous chemical process that is subject to strict regulation? - HCBBS Forum
40. Is it necessary to report phenol? - HCBBS Forum
41. Calculation of pipe resistance? ? ? - HCBBS Forum
42. Selection of urea solution storage tanks and pumps - HCBBS Forum
43. There’s a legend on the process flow diagram that I don’t recognize; I’d like to ask the experts for help - HCBBS Forum
44. Note: Case 2017, Question 4 in the afternoon - HCBBS Forum
45. How to calculate the area of a toluene exhaust condenser? - HCBBS Forum
46. Seeking information on the vaporization heat of ethyl acetate - HCBBS Forum
47. Please, don’t move the Daily Question section around casually! - HCBBS Forum
48. Is there a valve that only allows gases to pass through while preventing liquids from escaping? ? - HCBBS Forum
49. Heat exchanger - HCBBS Forum
50. Graphing problems - HCBBS Forum
51. Chemical name - HCBBS Forum
52. mol%min and mol.ppm max - HCBBS Forum
53. Fundamentals of Manufacturing Processes (Multiple Choice) 20181030 - HCBBS Forum
54. Are there any standards specifying the number of layers of fiberglass-reinforced plastic used for corrosion protection, the thickness required, and the sequence of construction? - HCBBS Forum
55. How are liquefied gases bottled - HCBBS Forum
56. Air cooler - HCBBS Forum
57. In process design, problems arise regarding the selection of pipe thickness – urgent! Urgent! Urgent! Urgent! - HCBBS Forum
58. Basic Process Knowledge (Multiple Choice) 20181020 - HCBBS Forum
59. Problems with vacuum distillation process - HCBBS Forum
60. Synthesis of difluoro**aldehyde in microchannel reactors – Xi’an Institute of Modern Chemistry - HCBBS Forum
61. Diffusion coefficient of gas in solution - HCBBS Forum
62. How are flap valves and up/down swing valves represented in PID/PFD diagrams? - HCBBS Forum
63. How to obtain the gas-liquid equilibrium curves for white oil and dichloromethane? - HCBBS Forum
64. Design of the crushing and drying process scheme for propylene oxide saponification residue - HCBBS Forum
65. Technical and economic comparison between steam lithium bromide units and electric-driven compressor units? ? - HCBBS Forum
66. Calculation for direct flue gas spraying cooling - HCBBS Forum
67. Can the human ear hear sound when the noise level is 0 dB? - HCBBS Forum
68. How to upgrade a company’s Class D design qualification to Class A - HCBBS Forum
69. How many nitrogen gas cylinders are needed for a pressure-relief tank truck? - HCBBS Forum
70. Basic Process Knowledge (Multiple Choice) 20180709 - HCBBS Forum
71. Liquid nitrogen storage tank - HCBBS Forum
72. Fundamentals of Manufacturing Processes (Multiple Choice) 20180722 - HCBBS Forum
73. Ethylene glycol production process flow - HCBBS Forum
74. How should one determine the nominal pressure when selecting outdoor fire hydrants? - HCBBS Forum
75. Pump selection issue - HCBBS Forum
76. Petroleum Industry Regulation 6.4.2 Loading and unloading stations: 1. The distance between the loading/unloading crane positions and the buffer tanks should not be less than 5 M; the distance between elevated tanks... - HCBBS Forum
77. What is the difference between a turbine driving an air compressor and a motor driving an air compressor? - HCBBS Forum
78. Let’s discuss everyone’s understanding of “room temperature” - HCBBS Forum
79. Separation and recovery of chlorinated exhaust gases, a mixture of hydrogen chloride and sulfur dioxide - HCBBS Forum
80. Design pressure - HCBBS Forum
81. Introduction to waterproof and breathable membrane knowledge - HCBBS Forum
82. Safe distance for biogas flares - HCBBS Forum
83. Can a firewall open doors and windows? - HCBBS Forum
84. Asphalt exhaust gas processor - HCBBS Forum
85. May I ask that the wastewater treatment process was originally designed in accordance with the environmental impact assessment, but it was modified after it failed to meet the required standards? - HCBBS Forum
86. Regarding the issuance of processes for chlorination, nitration, sulfonation, polymerization, fluorination, hydrogenation, oxidation, peroxidation, diazotization, cracking (.... - HCBBS Forum
87. Which separation method is better for gas-liquid separators? - HCBBS Forum
88. Fundamentals of Processing Technology (Multiple Choice) 20181026 - HCBBS Forum
89. Is a safety assessment required when establishing a factory in the food industry? - HCBBS Forum
90. If a flammable liquid leaks inside the cofferdam, what measures should be considered in the design? What methods do you use on site? - HCBBS Forum
91. Is it possible to have gas flow without gas pressure? - HCBBS Forum
92. Latest technologies for treating high-concentration chlorine- and halogen-containing exhaust gases - HCBBS Forum
93. Adsorption of organic substances in gases - HCBBS Forum
94. Problems with the long-term operation of the Dalike large-granule urea production plant - HCBBS Forum
95. Wall thickness serial number - HCBBS Forum
96. How to dispose of the residue in a diesel filter? - HCBBS Forum
97. Selection of vacuum buffer tanks - HCBBS Forum
98. What are the specific policies and guidelines that are implemented in the design? - HCBBS Forum
99. Is it better to perform gas-liquid separation under high pressure or low pressure? - HCBBS Forum
100. Exactly how many holes are there in 1 inch, and how many in 1 inch squared? - HCBBS Forum