English — Forum #337 (Page 78/163)

1. May I ask if 4 methanol tanks with a capacity of 10 cubic meters each can still be placed within one fire dike? - HCBBS Forum
2. How to prevent static electricity in PVC pipes - HCBBS Forum
3. The most comprehensive table of solvent solubility parameters - HCBBS Forum
4. Height-to-diameter ratio of dome tank - HCBBS Forum
5. What are the standard specifications for setting the radius of an oxygen alarm? - HCBBS Forum
6. “Specifications for the Design Content of Foundation Engineering in Petrochemical Plants” SPMP-STD-EM2004-2016 - HCBBS Forum
7. [Daily Question] Basic Process Knowledge (True/False Questions) 20190901 - HCBBS Forum
8. 【Haichuan School Review Series Discussion】Job Responsibilities of Professional Heads in Design Institutes - HCBBS Forum
9. Points for winning prizes by posting – what are these conversion points? What is its purpose? Could someone explain this to me? - HCBBS Forum
10. Help needed - HCBBS Forum
11. Extreme phosphorus removal process - HCBBS Forum
12. Does the sulfur combined plant have an outlet for organic waste? - HCBBS Forum
13. What is the feasibility of converting the hydrolysis of nitrochlorobenzene to produce sodium nitrite into a continuous process? - HCBBS Forum
14. Regarding the issue of flow velocity in float ball sight glasses - HCBBS Forum
15. support frame - HCBBS Forum
16. Discussion on the treatment solutions for exhaust gases from oil and gas recovery devices - HCBBS Forum
17. How to remove chloride ions from activated carbon? ? Solve - HCBBS Forum
18. Unloading procedures for 31% hydrochloric acid, 40% nitric acid, and 40% hydrofluoric acid, as well as process measures for dealing with residual acid in the pipelines and the air entering the unloading pumps - HCBBS Forum
19. desulfurization - HCBBS Forum
20. In which process applications is it necessary to install a buffer tank? - HCBBS Forum
21. Bipolar reverse osmosis intermediate water tank - HCBBS Forum
22. Is the pyrolysis recycling process for used tires considered a chemical process that is subject to strict regulation? - HCBBS Forum
23. Specifications to be followed for the layout of liquefied petroleum gas filling stations - HCBBS Forum
24. Questions regarding the addition of vapor equilibrium lines to storage tanks in the tank farm? - HCBBS Forum
25. throttling - HCBBS Forum
26. [Daily Question] Basic Process Knowledge (Multiple Choice) 20191016 - HCBBS Forum
27. Is it necessary to install a safety valve in a high-pressure hydraulic oil system? - HCBBS Forum
28. Where can I find the newly issued **regulations and rules online? - HCBBS Forum
29. The PTA process personnel are gathered together - HCBBS Forum
30. Great working people have much wisdom - HCBBS Forum
31. [Daily Question] Basic Process Knowledge (True/False Questions) 20190820 - HCBBS Forum
32. Silicon-carbon alloys are quite effective for steelmaking and casting! - HCBBS Forum
33. When drawing a pipe layout plan, how should two pipes that overlap vertically be represented? - HCBBS Forum
34. How is the dust explosion protection rating determined? What is the explosion protection rating for powdered activated carbon? - HCBBS Forum
35. How is chloroethane recovered in the production of diethyl phosphite - HCBBS Forum
36. May I ask if the packing inside the equipment can be installed only after the pipes and equipment have passed the water test? - HCBBS Forum
37. What is the temperature resistance of 15CrMo pipes? Based on what criteria? - HCBBS Forum
38. Unsteady heat transfer calculation - HCBBS Forum
39. How is the flow rate at the minimum flow line of the pump determined? - HCBBS Forum
40. Ammonia synthesis system - HCBBS Forum
41. Integrated treatment of chlorine gas from accident ventilation and waste chlorine gas from process units in chlorine-related plants - HCBBS Forum
42. Purchase of gravity valveless filter - HCBBS Forum
43. Is it necessary to install gate valves before and after the emergency shut-off valve in the tank? - HCBBS Forum
44. Can a self-priming pump suffer from cavitation? - HCBBS Forum
45. What kind of pump is a fluidized bed hydrogenation circulation pump? - HCBBS Forum
46. Treatment of synthetic leather waste gas - HCBBS Forum
47. Green diesel technology - HCBBS Forum
48. What is the quantitative relationship between the oxygen content in the equipment and the explosion limit of the material? - HCBBS Forum
49. Who can explain it? - HCBBS Forum
50. A big scammer from Germany! ! - HCBBS Forum
51. How is the hydrostatic test pressure calculated when the inner tube of the jacketed tube is a vacuum tube? - HCBBS Forum
52. Manufacturing of 5000 cubic storage tank - HCBBS Forum
53. [Daily Question] Basic Process Knowledge (True/False Questions) 20190705 - HCBBS Forum
54. For 50% hydrogen peroxide, should it be designed as a container at normal pressure or as a pressure vessel at room temperature? Why - HCBBS Forum
55. What standards are followed for breathing manholes and emergency pressure relief manholes? - HCBBS Forum
56. Can a packing support be used as a liquid redistributor? - HCBBS Forum
57. Liquid carbon dioxide - HCBBS Forum
58. 【Process Engineering Division – Chemical Components Forum – Daily Question – Questions 05-10】 - HCBBS Forum
59. An open-plan factory building on the first floor, classified as Category A with a fire resistance rating of level 2; should the roofing material on the top floor be non-combustible? ? - HCBBS Forum
60. 【Haichuan School Review Series Discussion】Job Responsibilities of Reviewers in Design Institutes - HCBBS Forum
61. Is the largest specialty in design institutes the most profitable? Like piping - HCBBS Forum
62. The thermometer needs to be inserted from the top of the pool, but the pool is 6 meters deep, so it has to be inserted quite deep, which causes it to shake. How do you handle that? - HCBBS Forum
63. [Daily Question] Basic Process Knowledge (Multiple Choice) 20190924 - HCBBS Forum
64. For ordinary fine chemical plants, what types of waste gases are generated by the wastewater treatment equipment? - HCBBS Forum
65. Looking for the electronic version of the second edition of the Chemical Process Design Handbook - HCBBS Forum
66. Problem with the unloading crane hose! - HCBBS Forum
67. Everyone, how does your company manage temporary power usage? - HCBBS Forum
68. What is the industrial status of the PTA rich-oxidation process? - HCBBS Forum
69. Latest production processes for hexanoic acid and treatment of waste materials - HCBBS Forum
70. Fire separation distance issues between liquid oxygen storage tanks and Class B process equipment - HCBBS Forum
71. 3D simulation demonstration animation of formaldehyde - HCBBS Forum
72. Animation demonstration video of the acrylonitrile virtual factory - HCBBS Forum
73. Do we need to consider electrical explosion protection for hydrogen peroxide, concentrated sulfuric acid, nitric acid, etc.? - HCBBS Forum
74. [Process Engineering Division – Pipeline and Valve Technology Exchange Forum – Daily Question – Questions 05–16] - HCBBS Forum
75. Waste heat power generation and thermal power generation - HCBBS Forum
76. What is the Henry’s law constant for NH3 in water at 30°C? - HCBBS Forum
77. What is metallurgical iron sulfide and what are its uses? - HCBBS Forum
78. Do steam pipelines need to be pressure-tested? - HCBBS Forum
79. [Process Engineering Area-Chemical Workpiece Exchange Edition-Daily Question-Question 05-12] - HCBBS Forum
80. For the pipelines of combustible gases, liquefied hydrocarbons, and combustible liquids in the inlet and outlet devices, isolation valves and 8-shaped... should be installed at the boundaries of the devices. - HCBBS Forum
81. [Daily Question] Basic Process Knowledge (True/False) 20190602 - HCBBS Forum
82. Filter sample - HCBBS Forum
83. [Daily Question] Basic Process Knowledge (Multiple Choice) 20190922 - HCBBS Forum
84. I’m seeking advice from experts: which type of heat exchanger is better for materials that tend to form scale? - HCBBS Forum
85. What is there between molecules? What is it called when there’s nothing? - HCBBS Forum
86. Qiu’s method for calculating nozzle flow rate - HCBBS Forum
87. How to draw a folded conical head - HCBBS Forum
88. How much more heat is required to raise the temperature of 1L of gasoline by 1 degree compared to 1L of diesel by 1 degree? Is there a theoretical basis? - HCBBS Forum
89. How should outdoor pumps in the workshop be set up to collect sewage and rainwater? Is there now a clear requirement that rainwater be collected using open ditches? - HCBBS Forum
90. SY/T 5037-2018 Submerged arc welded steel pipes for general fluid transport pipelines - HCBBS Forum
91. I have an idea; I’m not sure if it’s feasible - HCBBS Forum
92. How is the airtightness leakage rate calculated? - HCBBS Forum
93. On the quenching limit of catalysts - HCBBS Forum
94. Discussion on pressure difference in bag dust collectors - HCBBS Forum
95. Selection of methanol pump - HCBBS Forum
96. Issue of pump foundation height - HCBBS Forum
97. Who can provide an ORC system with R245fa? - HCBBS Forum
98. Is it necessary to evacuate and then replace with nitrogen at every step for flammable and explosive devices? - HCBBS Forum
99. I’m looking for information on the principles of oil chemistry and advanced processing techniques; there was such content on the forum before, but it’s no longer available - HCBBS Forum
100. Questions regarding production wastewater pipes in fire protection codes - HCBBS Forum