English — Forum #337 (Page 107/163)

1. I have problems with the use of steam traps; I seek guidance from experts - HCBBS Forum
2. Exhaust treatment furnace - HCBBS Forum
3. Leakage test for gas pipelines in Class C media - HCBBS Forum
4. Fundamentals of Manufacturing Processes (Multiple Choice) 20180805 - HCBBS Forum
5. TCU temperature process control system - HCBBS Forum
6. Basic Process Knowledge (Multiple Choice) 20180731 - HCBBS Forum
7. How to understand the safety valve installed in the reboiler heating pipe - HCBBS Forum
8. Moving from a separate control room to a combined control room - HCBBS Forum
9. Ultra-low temperature pump - HCBBS Forum
10. Basic Process Knowledge (Multiple Choice) 20181102 - HCBBS Forum
11. Piping selection for air compressor station systems - HCBBS Forum
12. What does U/G mean in the floor plan? ? - HCBBS Forum
13. Looking for recommendations for pipeline software - HCBBS Forum
14. Books on the hydrogenation of crude benzene - HCBBS Forum
15. What information should be provided for the safety assessment of fine chemical reactions? - HCBBS Forum
16. “What does “steam out condition” mean? - HCBBS Forum
17. Should the safety distance for individual residential buildings be determined based on civil construction standards or those related to open flames? - HCBBS Forum
18. The process design process: how is the selection of flowmeters determined and finalized, and what responsibilities do the process team, the instrumentation team, and the manufacturers have respectively? - HCBBS Forum
19. [Mechanical Equipment Technology Edition] Daily Question 201807023: Refrigeration Systems—Case Analysis (1) - HCBBS Forum
20. Fundamentals of Processing Technology (Multiple Choice) 20180619 - HCBBS Forum
21. How to treat paraffin in methanol wastewater - HCBBS Forum
22. Evaporation problem of 20% ammonia solution - HCBBS Forum
23. 【Book of the Day】The Spy Who Became a Translator by Tan Tan.azw3 - HCBBS Forum
24. Phenol in solid form is originally of Category C, but it turns into a liquid when the temperature rises; after that, it is fed into the reactor for a high-temperature reaction - HCBBS Forum
25. Is there profit in recycling construction waste? - HCBBS Forum
26. Introduction to the well testing analysis software developed by Hefei Chen Gong Technology Co., Ltd - HCBBS Forum
27. How are the temperature and pressure of the steam used for insulating storage tanks determined? - HCBBS Forum
28. Does a liquid nitrogen cooling station need an oxygen concentration alarm? Are there any standards available? - HCBBS Forum
29. Go for technical exchanges - HCBBS Forum
30. Two pumps in series? ? ? - HCBBS Forum
31. The vacuum level of the vacuum system does not meet the process requirements - HCBBS Forum
32. szorb reactor - HCBBS Forum
33. How should the design pressure of a storage tank equipped with a breathing valve be determined? Are there any guidelines to refer to? - HCBBS Forum
34. In engineering, given the pressure difference across the two ends of a pipe, how is the flow velocity calculated? Consider hydraulic friction losses - HCBBS Forum
35. All procurement agreements under the Yulin Energy Chemicals filling and improvement project framework have been finalized - HCBBS Forum
36. Pump interlock automatic control - HCBBS Forum
37. Where can I find the latest versions of API standards and ASTM standards? - HCBBS Forum
38. What do the numbers that follow CN, N, and V in reaction vessels mean? - HCBBS Forum
39. Basic Process Knowledge (Multiple Choice) 20181106 - HCBBS Forum
40. What is the angle of repose of lithium carbonate slurry with about 20% water content? - HCBBS Forum
41. Is there any solution to the issue that the steam inlet pipe of the heat exchanger is too close to the plastic pipe from which the material is being heated? - HCBBS Forum
42. Fundamentals of Manufacturing Processes (Multiple Choice) 20181014 - HCBBS Forum
43. What are the dangers of exchanging LNG for water at 15 degrees Celsius using a heat exchanger? - HCBBS Forum
44. Are there cycloalkyl lubricant hydrogenated products with good light stability that do not use precious metal catalysts? - HCBBS Forum
45. Dilute sulfuric acid concentration technology - HCBBS Forum
46. Do all projects built before 2009 have major hidden dangers? ? - HCBBS Forum
47. Is it allowed to operate with a full tank of liquid hydrocarbons? - HCBBS Forum
48. The temperature of the heat transfer oil high-level tank is high - HCBBS Forum
49. English translation - HCBBS Forum
50. Which specification can be used to directly select the equipment for tank shaping? ? - HCBBS Forum
51. HYSYS simulation of gasoline vapor pressure - HCBBS Forum
52. Fundamentals of Manufacturing Processes (Multiple Choice) 20181108 - HCBBS Forum
53. On the measurement and control of pump outlet flow rate - HCBBS Forum
54. Regarding the choice of steam flow rate - HCBBS Forum
55. Experts, how to remove styrene from DMF? - HCBBS Forum
56. Seek a simple production process for highly active polyisobutylene - HCBBS Forum
57. Is there any specific basis for the hold position of the FC/FO/FL accident switch? Are there any standards that specify this? - HCBBS Forum
58. How are emergency cooling systems designed for high-risk processes (such as hydrogenation)? - HCBBS Forum
59. Optimize process parameters to improve product performance - HCBBS Forum
60. Pump settings - HCBBS Forum
61. How is the leakage rate of methanol storage tanks and dichloroethane storage tanks calculated in the event of a fire? - HCBBS Forum
62. [Mechanical Equipment Technology Edition] Daily Question 201808023: Refrigeration Systems—Case Analysis (2.2) - HCBBS Forum
63. Regarding the standards for fire-fighting water, can seawater after filtration be used as a substitute? - HCBBS Forum
64. Analysis of the reasons for ethylene glycol discoloration - HCBBS Forum
65. Seeking chemicals for treating cyanide in coking phenol-cyanide wastewater - HCBBS Forum
66. Basic Process Knowledge (Multiple Choice) 20181119 - HCBBS Forum
67. Are there any standards regarding underground tanks? For example, under what conditions must underground waste collection tanks be designed? - HCBBS Forum
68. Which centrifuge is suitable for sodium salts with a solid-liquid separation particle size of around 80 and a temperature of 80 degrees Celsius? - HCBBS Forum
69. Is a multi-stage process more efficient than a single-stage process? ! - HCBBS Forum
70. 4000 Nm3/h of air has its moisture removed to 10 ppm, and carbon dioxide is removed to 50 ppm - HCBBS Forum
71. Risks of changing the batch reaction process in the reactor to a fixed-bed continuous reaction process - HCBBS Forum
72. Temperature setting for the flash tank in the refinery’s solvent regeneration unit - HCBBS Forum
73. Gaseous phase issues of ethylene - HCBBS Forum
74. The role of flash ratio and vaporization rate in design - HCBBS Forum
75. Refrigeration instructions for freezing equipment - HCBBS Forum
76. The internal components of the equipment are supported, in the form of perforated plate filters; is it better to use rubber-lined steel or PO-lined steel? - HCBBS Forum
77. Flowchart for the treatment of lead-acid wastewater in DWG format - HCBBS Forum
78. Regarding the calculation of the relief valve discharge volume: maximum heat transfer under operating conditions - HCBBS Forum
79. May I ask what kind of composite material is used in the image? - HCBBS Forum
80. What conditions need to be met for the project to be completed, what is the procedure involved, and what needs to be delivered? How is the acceptance carried out by CCCC? - HCBBS Forum
81. Fundamentals of Manufacturing Processes (Multiple Choice) 20180803 - HCBBS Forum
82. Fundamentals of Manufacturing Processes (Multiple Choice) 20180823 - HCBBS Forum
83. Basic Process Knowledge (Multiple Choice) 20180625 - HCBBS Forum
84. Discussion on the issue of design drawing legends - HCBBS Forum
85. Heat exchanger? - HCBBS Forum
86. What are the regulatory requirements for the design of gas rooms in canteens? - HCBBS Forum
87. Are there any institutions that assess the fire hazard of mixtures? - HCBBS Forum
88. Fundamentals of Manufacturing Processes (Multiple Choice) 20181017 - HCBBS Forum
89. szorb operation - HCBBS Forum
90. I would be grateful if an expert could help upload the Heritage Amoco Oil Engineering Specification 54S-61. - HCBBS Forum
91. How is the heat transfer calculation for electric heating done? - HCBBS Forum
92. Non-condensable gases in the polymerization reaction process - HCBBS Forum
93. How to prevent excessive condensation from forming on the outer wall of hydrogen peroxide storage tanks - HCBBS Forum
94. Seek HG6-485-75 standard - HCBBS Forum
95. What substances, when burned, produce smoke? What substance burns without producing smoke? - HCBBS Forum
96. When testing pipeline sections individually, do the valves, whether open or closed, also undergo testing along with that particular section of pipeline? - HCBBS Forum
97. Piston-type pressure reducing valve: the outlet pressure after pressure reduction is unstable - HCBBS Forum
98. Reactor pressure increase - HCBBS Forum
99. Water cooling - HCBBS Forum
100. Basic Process Knowledge (Multiple Choice) 20180628 - HCBBS Forum