English — Forum #337 (Page 45/163)

1. 8978 - HCBBS Forum
2. What qualifications must a manufacturer have to supply pressure relief manholes, breather valves, and safety valves? What documents are required for shipment? - HCBBS Forum
3. 115 Questions regarding sulfuric acid transportation - HCBBS Forum
4. Which is more energy-efficient, steam heating or electric heating? - HCBBS Forum
5. It’s hard to tell the difference between free chlorine and residual chlorine - HCBBS Forum
6. Ask for the answer - HCBBS Forum
7. Special fastener series for the petrochemical and chemical industries - HCBBS Forum
8. Is there a small amount of hydrogen in refineries and pyrolyzed propylene? - HCBBS Forum
9. What should be the pressure range of the fire pressure stabilization system in hazardous chemical storage areas? - HCBBS Forum
10. How do chemical plants prevent freezing and condensation in winter? - HCBBS Forum
11. Schematic diagram of the coaxial lift tube catalytic cracking reactor and regenerator - HCBBS Forum
12. MDEA wet flue gas desulfurization - HCBBS Forum
13. Pneumatic conveying in riser reactors - HCBBS Forum
14. Old K says every week – talking about things in the petrochemical design industry. Post 48: The maximum flow rate can be used to determine the capacity of gravity-fed pipelines - HCBBS Forum
15. Zero emissions - HCBBS Forum
16. Meaning of DCS Symbols in Yokogawa VP System (II) - HCBBS Forum
17. What is this? - HCBBS Forum
18. What is the effect of the side-stream withdrawal rate in a packed distillation column on the temperatures at the top and throughout the column? - HCBBS Forum
19. Are there any relevant standards for using water or conducting airtightness tests on low-pressure equipment? - HCBBS Forum
20. The China Petroleum and Chemical Industry Federation held the 6th Conference on the Comprehensive Utilization, Treatment, and Disposal of Solid Waste in the Chemical Industry - HCBBS Forum
21. How are elbows, tees, etc. indicated in the material list of the lining pipe piping diagram? - HCBBS Forum
22. Do high-pressure equipment that are laboratory-type non-pressure vessels require airtightness testing and related inspections? - HCBBS Forum
23. Cooling tower basin of circulating water system - HCBBS Forum
24. Static grounding for flammable and corrosive liquids - HCBBS Forum
25. Issues regarding the classification and calculation of acute toxicity of media - HCBBS Forum
26. Regarding the naming of polyethylene - HCBBS Forum
27. Can a liquid ammonia storage tank and a 25% ammonia water tank be placed in the same tank farm? - HCBBS Forum
28. Soft water treatment - HCBBS Forum
29. Recommendations for well-performing domestic manufacturers of ionic liquid desulfurization systems - HCBBS Forum
30. Ammonia method - HCBBS Forum
31. Regarding the degradation of o-chloro-1-chlorobenzene during distillation - HCBBS Forum
32. Foamy oil discharged from the polypropylene low-pressure scrubber tower - HCBBS Forum
33. Work contents and standards for the commissioning of chemical plants - HCBBS Forum
34. I’d like to conduct a survey: what are the set pressures for the nitrogen sealing systems, vent valves, and pressure relief manholes in your flammable liquid storage tanks? - HCBBS Forum
35. Liquid ammonia sphere tank - HCBBS Forum
36. Hydraulic radius of circular pipes - HCBBS Forum
37. Why is the storage and transportation section gone? - HCBBS Forum
38. What is the definition of heavy hydrocarbons? - HCBBS Forum
39. \"K\" in airtightness" - HCBBS Forum
40. Seeking to purchase foamy oil from polypropylene low-pressure washing towers - HCBBS Forum
41. The refrigerator has low efficiency - HCBBS Forum
42. Gas centrifuge - HCBBS Forum
43. Steam temperature fluctuations - HCBBS Forum
44. Does the phosphorus trichloride product turn yellow when the liquid chlorine storage tank is depressurized? - HCBBS Forum
45. What are the acceptance standards during the installation of a device? - HCBBS Forum
46. Could you please explain how the tank truck grounding interlock and the pump startup interlock work? How is it implemented? - HCBBS Forum
47. SIS valves are installed for material inflow and outflow at the storage tanks in the tank farm. Is it possible to install such valves on the main pipeline when there are multiple storage tanks holding the same material? Are there any regulatory guidelines regarding this? - HCBBS Forum
48. Which components in exhaust gases can cause poisoning, safety, and corrosion issues for RTOs? - HCBBS Forum
49. Project collaboration - HCBBS Forum
50. May I ask how to determine whether an investment in a project is viable? - HCBBS Forum
51. What safety measures should be designed for carbon disulfide pipelines and storage tanks? What should I pay attention to? - HCBBS Forum
52. Flow rate issue - HCBBS Forum
53. Under what circumstances can it lead to a decrease in temperature in the side-line product collection tank and an increase in temperature at the top of the tower? - HCBBS Forum
54. What kind of pump is suitable for adding alkali (as crystallization may occur)? - HCBBS Forum
55. The issue of temperature changes when feeding propane into the distillation tower - HCBBS Forum
56. Does the feed to the distillation tower need to be preheated before entering it? - HCBBS Forum
57. Using Aspen Plus in Thermodynamics Instruction: AS tep-by-Step Guide 2 015 by S. Tanley I. Sa - HCBBS Forum
58. When the pH value is low and the process is unknown, how can one determine whether it is caused by organic acids or inorganic acids? - HCBBS Forum
59. What is the cheapest air heat exchange structure? - HCBBS Forum
60. Top 10 FAQs on Common Sewage Treatment - HCBBS Forum
61. The corrosion problem associated with by-products needs to be addressed urgently - HCBBS Forum
62. I bought aspen8.8 online to save trouble and spend money. Is there a problem with downloading? - HCBBS Forum
63. How to separate nitrochlorobenzene - HCBBS Forum
64. One pass through the hydrocracking process - HCBBS Forum
65. In vacuum systems, why is it required that the angle of the atmospheric leg not exceed 45 degrees or 30 degrees? - HCBBS Forum
66. Industrial propane - HCBBS Forum
67. Regarding the pressure of the pipes associated with the reaction vessel - HCBBS Forum
68. Type II wet hydrogen sulfide corrosion - HCBBS Forum
69. Oil pH meter - HCBBS Forum
70. Still about jacketed reactors - HCBBS Forum
71. Maintain temperature during the reaction process - HCBBS Forum
72. CAD version of waste heat boiler equipment manufacturing drawings - HCBBS Forum
73. What are the precautions for operating a water ring vacuum pump? - HCBBS Forum
74. Platform countertop style - HCBBS Forum
75. Load of steam tracing pipes on the pipe tray - HCBBS Forum
76. May I ask how high a concentration of fluoride ions can the 316L material tolerate in alkaline conditions? - HCBBS Forum
77. Is it allowed to drain a small amount of methanol condensate containing some water into the sump? - HCBBS Forum
78. Main operational data for post-combustion tank regeneration - HCBBS Forum
79. Problems in the treatment of dilute acid produced from desulfurization waste liquid - HCBBS Forum
80. What certificates should someone who has just started working in the central control field obtain after one year? - HCBBS Forum
81. Pricing method for steam - HCBBS Forum
82. What to do when the fire hazard categories of materials vary according to different standards? - HCBBS Forum
83. What materials are your pipe insulation made of? Evaporation equipment imported from Japan - HCBBS Forum
84. Nitrogen suction pressure for the breather valve - HCBBS Forum
85. Which areas within the petrochemical plant complex are hydrogen-related areas? - HCBBS Forum
86. Which teacher knows approximately what the utility costs per ton of nylon 66 are? - HCBBS Forum
87. Animated video: 37 principles of chemical reactions and their dangers – Mercury and aluminum rust. - HCBBS Forum
88. Seeking advice on POSM problems - HCBBS Forum
89. Can a plate and frame filter press be used to filter out the recrystallized salt crystals? - HCBBS Forum
90. Does lowering the set temperature of a refrigeration unit save electricity? - HCBBS Forum
91. Forced circulation heating process design, what is the purpose of adding a throttle valve to the circulation pipeline? - HCBBS Forum
92. It contains 40-90% water, 60-10% crude oil, and some gases – which flow meter should be chosen? - HCBBS Forum
93. High-tower type compound fertilizer melt granulator - HCBBS Forum
94. What are the maximum lower temperatures and maximum higher temperatures that 316L and 304 can withstand respectively? - HCBBS Forum
95. Urea disulfide - HCBBS Forum
96. DCS configuration - HCBBS Forum
97. Sulfur regeneration unit - HCBBS Forum
98. What is the fire hazard category for the substation in the sewage treatment plant? Are there any safety distance requirements regarding adjacent distribution rooms and similar facilities? - HCBBS Forum
99. Are there any forums for those involved in the production of polyester PET? - HCBBS Forum
100. Heat exchanger selection problem - HCBBS Forum