English — Forum #337 (Page 17/163)

1. How much does liquid nitrogen cost per Nm3? ! - HCBBS Forum
2. Can the alkylation and nitration units be arranged together? - HCBBS Forum
3. How to control temperature - HCBBS Forum
4. 【HVAC Version】Daily Question 20171107 - HCBBS Forum
5. Is there anyone who can share the standard document NB/T 47003.1-2009 \"Steel Welded Atmospheric Pressure Vessels\"? - HCBBS Forum
6. Heat loss in the pressure guiding tube of the instrument - HCBBS Forum
7. When drawing a pipe layout plan, how should two pipes that overlap vertically be represented? - HCBBS Forum
8. Which is the best data collector? - HCBBS Forum
9. Issues with working during thunderstorms - HCBBS Forum
10. If the height difference is certain, will the pressure difference required for taking different routes be the same? - HCBBS Forum
11. Innovative liquid phosphorus-based flame retardant: tetramethyl diglycidyl diphosphate - HCBBS Forum
12. [Daily Question] Basic Process Knowledge (True/False Questions) 20190512 - HCBBS Forum
13. 【Weekly Topic】【Engineering Version 20170105】 - HCBBS Forum
14. Meaning of motor control codes - HCBBS Forum
15. Valves built into the equipment - HCBBS Forum
16. Turbine vacuum issues - HCBBS Forum
17. Fundamentals of Processing Technology (Multiple Choice) 20171227 - HCBBS Forum
18. Basic Process Knowledge 20170726 - HCBBS Forum
19. 【Frontiers in HaiChuan Chemical Technology】Includes 1.8 million tons per year of mixed feedstock pyrolysis; the crude oil-to-chemicals project in Ulsan, South Korea, is set to go into operation in 2026 - HCBBS Forum
20. 【Frontiers in HaiChuan Chemical Technology】Dalian Institute of Chemical Physics develops hydroxyl-rich surface photocatalysts to achieve highly selective control of methane conversion to ethane - HCBBS Forum
21. Plug-flow reactor with recirculating stream - HCBBS Forum
22. Is it feasible to install 14 pumps on the floor? - HCBBS Forum
23. Production technology for dynamically fully vulcanized thermoplastic elastomers TPV - HCBBS Forum
24. Basic Process Knowledge (True/False Questions) 20170801 - HCBBS Forum
25. Alkyl glycoside (APG) uses, production processes and improvement plans - HCBBS Forum
26. 【Daily Topic】【HVAC Version 20170616】 - HCBBS Forum
27. Seeking the help of experts familiar with the processes and equipment for producing acetic anhydride - HCBBS Forum
28. Seeking help with hydrogenation issues in sulfur recovery Scott reactors - HCBBS Forum
29. 【Frontiers in HaiChuan Chemical Technology】The pilot project for the synthesis catalyst of polycarbonate di (poly) alcohols in Yueyang’s Green Chemical High-Tech Zone has passed verification - HCBBS Forum
30. Compilation of Standards for Collar-Type Pipe Fittings - HCBBS Forum
31. Are there pneumatic valves that can be placed underwater? - HCBBS Forum
32. Advantages and disadvantages of iron oxide/zinc desulfurization compared to activated carbon desulfurization - HCBBS Forum
33. 【Weekly Topic】【Production Version 20170104】 - HCBBS Forum
34. What is the decomposition heat of sulfuric acid? - HCBBS Forum
35. Tips for using wear-resistant plates NM450 and NM500 in flame cutting processes - HCBBS Forum
36. Chemical cleaning - HCBBS Forum
37. [Mechanical Equipment Technology Edition] Daily Question 201801017: Common Faults in Refrigeration Systems (7) - HCBBS Forum
38. Fire hazard issues - HCBBS Forum
39. Problems with the storage of chemical liquids by enterprises that store and handle hazardous chemicals - HCBBS Forum
40. I would like to ask the experts: when are the auxiliary materials used for heat retention and insulation (round steel, angle steel, support rings) applied? ... - HCBBS Forum
41. Can high-pressure liquid be directly introduced into a tank at normal pressure? - HCBBS Forum
42. 【3D Process Flow】- Differences between Roots blowers and centrifugal blowers - HCBBS Forum
43. May I ask whether materials such as Q235B can be used in highly or moderately toxic media? Which standards address this aspect? - HCBBS Forum
44. Now that the answer is announced, is it considered a weird process design? - HCBBS Forum
45. [Mobile Equipment Technology Edition] Daily Question 20180408 Screw Refrigeration Compressor Gas Transmission Volume Adjustment Mechanism (8) - HCBBS Forum
46. Refilling of fire water tanks - HCBBS Forum
47. Key points in the design of chemical production process flows - HCBBS Forum
48. There are various issues regarding the classification of production processes that pose fire hazards within factory buildings - HCBBS Forum
49. Is 316L material suitable for a 10% ferrous sulfate solution at room temperature and normal pressure? - HCBBS Forum
50. Should pipeline static grounding be handled by the electrical department or the process engineering department? - HCBBS Forum
51. What is the purpose of installing a dehydration line in liquefied hydrocarbon tanks? - HCBBS Forum
52. 3D Process Flow -- Polymerization Process of Biodegradable Materials PBAT/PBS - HCBBS Forum
53. If you roughly know the flow rate of a gas or liquid, how can you estimate the pipe diameter? Is there a difference between gases and liquids? - HCBBS Forum
54. Design approach for accident ponds - HCBBS Forum
55. 【HVAC Version】Daily Question 20171204 - HCBBS Forum
56. 【Mechanical Equipment Technology Edition】Daily Question 20171110: Lubrication System of Screw Compressor Units (1) - HCBBS Forum
57. Latent heat of vaporization of steam - HCBBS Forum
58. Why is the liquid level in the reflux tank lower as the temperature at the bottom of the distillation tower increases? - HCBBS Forum
59. Schematic diagram of two-stage regenerator with an internal overflow pipe in front of the coking tank - HCBBS Forum
60. Calculation of required relief area of ​​breathing valve - HCBBS Forum
61. Can Class A tank areas be enclosed? - HCBBS Forum
62. Could someone help explain what a general layout, a simplified diagram, a schematic diagram, and a circuit diagram mean in product design? - HCBBS Forum
63. Voltage of sacrificial anode - HCBBS Forum
64. Issues regarding the placement of equipment beneath utility tunnels - HCBBS Forum
65. Can carbon steel be used outdoors in Inner Mongolia? Plastic pipe? The temperature is so low - HCBBS Forum
66. Vocational skills training tutorial for team leader positions@ - HCBBS Forum
67. Everyone, help figure out what this is - HCBBS Forum
68. How should the accuracy of instruments such as pressure transmitters, temperature transmitters, and level sensors be selected? Are there any guidelines? - HCBBS Forum
69. Calculating horizontal gas-liquid separation: how to read the diagrams? - HCBBS Forum
70. Elbows in two-phase flow pipelines - HCBBS Forum
71. I would like to ask whether there is a reliable method for using fiberglass-reinforced plastic for corrosion protection in steel structures with square grooves that are prone to deformation - HCBBS Forum
72. Problems with process design - HCBBS Forum
73. Professional lining of pipes and equipment manufacturing – Cangzhou Yingxu - HCBBS Forum
74. Can the utility station N2 be powered by plant air instead? - HCBBS Forum
75. Haichuan Original E-books—The eighth batch of e-book rewards has been announced (Part 2) - HCBBS Forum
76. Under what circumstances should sealed welding not be used? - HCBBS Forum
77. Temperature measurement under vacuum conditions - HCBBS Forum
78. Dual-temperature heat transfer oil system - HCBBS Forum
79. Desulfurization design - HCBBS Forum
80. Selection of a set of pumps - HCBBS Forum
81. Which code specifies the location of a firewall between the transformer room and the distribution room? - HCBBS Forum
82. Are there any **standard specifications or industry standards** for PPH pipes and tubing? - HCBBS Forum
83. What type of throttling device is this? - HCBBS Forum
84. Discussion on the layout principles of process pipelines - HCBBS Forum
85. Are PN10 pipes still used in gas stations these days? - HCBBS Forum
86. Discussion on plant buildings and equipment - HCBBS Forum
87. May I ask whether for steam tracing pipes, steam is connected to the starting end of the main pipe with a drain valve installed at the end, or should one be installed at intervals along the pipe... - HCBBS Forum
88. Have any of you who work in the marine industry dealt with carbon disulfide storage tanks? - HCBBS Forum
89. Is the safety distance for biogas production tanks in anaerobic fermentation determined based on the safety distances for fixed-roof tanks containing Class A and B gases? - HCBBS Forum
90. Conversion between natural gas water dew point temperature and ppm - HCBBS Forum
91. Why are some evaporators used with saturated steam after it has been depressurized? ! - HCBBS Forum
92. What specific aspects should be paid special attention to when evaluating bids for the purchase of pneumatic on-off valves and control valves? - HCBBS Forum
93. Our eyes met, and you’re the right person - HCBBS Forum
94. Hubei Province releases the updated list of policies regarding the prohibition, restriction/control, phasing out, and encouragement of hazardous chemicals - HCBBS Forum
95. The compressed air pressure is 25 MPa, there are no corrosive substances, and the pipe temperature is 55°C. How should the pipe material be selected? Is 20 carbon steel suitable? - HCBBS Forum
96. How many meters must there be around the methanol storage tank without open flames? Is it related to the size of the storage tank? - HCBBS Forum
97. Project manager contracting system for engineering design projects - HCBBS Forum
98. Is there a problem with the installation of the accident pool? - HCBBS Forum
99. The HGCAD toolbar has disappeared - HCBBS Forum
100. Pentane, compressed air - HCBBS Forum