English — Forum #337 (Page 105/163)

1. The clear water commissioning target (key indicator data) – what exactly does this key indicator data refer to? - HCBBS Forum
2. Methods for separating vicinal umbelliferones - HCBBS Forum
3. Treatment of chloroform-containing wastewater - HCBBS Forum
4. Solvent condensation and reflux cause caking of the material inside the tank - HCBBS Forum
5. Is heat treatment absolutely necessary for storage tanks containing flammable and explosive liquids? - HCBBS Forum
6. Regarding the tube strike issue in condensers - HCBBS Forum
7. I’m looking for well-known domestic manufacturers that produce supercritical extraction devices. Who are they? - HCBBS Forum
8. Lubricating oil for steam turbines - HCBBS Forum
9. What are the production methods for butenoxime, and what is the proper storage method? - HCBBS Forum
10. In the A0 process for coalification wastewater, sludge appears intermittently in the final settling tank - HCBBS Forum
11. Palmated oil - HCBBS Forum
12. The issue of cavitation head in pumps - HCBBS Forum
13. 【Mechanical Equipment Technology Edition】Daily Question 20180707: Refrigeration Systems — Refrigeration Parameters (17) - HCBBS Forum
14. Heating furnace - HCBBS Forum
15. Apply heat tracing - HCBBS Forum
16. Crude benzene hydrogenation extractant - HCBBS Forum
17. There was a centrifugal pump on site, at a sealed location; fresh water was supplied directly to it, and since there was no discharge pipeline, the water went straight into the pump - HCBBS Forum
18. What are the uses of vent gas, nitrogen, purified compressed air, unpurified compressed air, and vented gases in a PID diagram? - HCBBS Forum
19. Gas-phase LPG pipeline flow rate - HCBBS Forum
20. What is HP25Cr35NiNbMA called? - HCBBS Forum
21. Determination of nitrogen consumption during driving tests - HCBBS Forum
22. Are there any distance requirements between the manual alarm buttons installed in the tank area and the tanks, loading/unloading stations, etc.? - HCBBS Forum
23. 【Daily Question】【Static Equipment AC Version...Question 12】November 26, 2018 – True/False Multiple Choice Question..Prize. - HCBBS Forum
24. Fundamentals of Manufacturing Processes (Multiple Choice) 20181024 - HCBBS Forum
25. Fundamentals of Manufacturing Processes (Multiple Choice) 20181021 - HCBBS Forum
26. In the process unit area, the flare gas liquid separation tank should be located away from other process equipment in the facility - HCBBS Forum
27. Is explosion protection related to Class B liquids, Class C liquids, or Class V liquids? What determines the explosion protection rating? - HCBBS Forum
28. Temperature measurement under vacuum conditions - HCBBS Forum
29. During the process design phase, in the instrument selection table, should the instrument accuracy be specified by the process or by the instrument manufacturer? - HCBBS Forum
30. Setting of safety valves for liquid ammonia storage tanks - HCBBS Forum
31. Dalton’s law of partial pressures - HCBBS Forum
32. Equipment in Class A workshops is painted with anti-rust paint; is it required that this paint be fire-resistant? - HCBBS Forum
33. Interpretation of design code provisions - HCBBS Forum
34. Regarding the meaning on the PID legend - HCBBS Forum
35. Production of ethanol from carbide production exhaust gases - HCBBS Forum
36. MTBE aromatization PID diagram - HCBBS Forum
37. Calculation of heat transfer capacity for propane heat exchangers - HCBBS Forum
38. Determination of the cofferdam height - HCBBS Forum
39. On automatic control and interlock devices for hazardous chemical processes under strict supervision - HCBBS Forum
40. What are the specific parameters of the ZUPAC2.0 structured packing? I hope the teacher can give some guidance! - HCBBS Forum
41. Hydrogenation reactors typically are equipped with two sets of emergency pressure relief valves, at 7 bae and 14 bar. How is the sequence in which they are activated or the operating procedures controlled? - HCBBS Forum
42. Fundamentals of Manufacturing Processes (Multiple Choice) 20180903 - HCBBS Forum
43. Regarding the issue of filter backwashing, I am seeking advice from relevant experts - HCBBS Forum
44. Concentric reducers are used on vertical pipes, while eccentric reducers are used on horizontal pipes – is my understanding correct? - HCBBS Forum
45. Fundamentals of Processing Technology (Multiple Choice) 20180729 - HCBBS Forum
46. Does the line in the general layout diagram for the workshop represent the axis line or the outer wall line? - HCBBS Forum
47. Sodium hypochlorite Sodium chlorite - HCBBS Forum
48. Question: Can a fan operate at a pressure higher than its rated full pressure? - HCBBS Forum
49. Polyethylene cross-linked foam appears rough; how to adjust it? - HCBBS Forum
50. Are there any reference standards for the maintenance of pipelines for flammable and explosive liquid storage tanks? What about the concentrated sulfuric acid pipelines? - HCBBS Forum
51. Should one learn chemical thermodynamics or physical chemistry first? - HCBBS Forum
52. Could you help me explain what INSUL IH.. means in the diagram? - HCBBS Forum
53. What does it mean to be in the same building? What is a device? - HCBBS Forum
54. Materials - HCBBS Forum
55. 【Book of the Day】Human Bone Puzzle [USA] Jeffrey Deaver.azw3 - HCBBS Forum
56. Materials providing a comprehensive introduction to steam - HCBBS Forum
57. Control system - HCBBS Forum
58. Please help check whether the following process design can be implemented. Thank you - HCBBS Forum
59. What material should be used for pipes for 102 sulfuric acid? - HCBBS Forum
60. Encapsulated thermal resistors and embedded thermal resistors - HCBBS Forum
61. What are the typical pressure ranges for low-pressure distillation, medium-pressure distillation, and high-pressure distillation in industry? - HCBBS Forum
62. The impact of boiler feedwater temperature on boiler steam quality - HCBBS Forum
63. Basic Process Knowledge (Multiple Choice) 20180630 - HCBBS Forum
64. Does anyone know the operating pressure for isopentane cylinders? - HCBBS Forum
65. Basic Process Knowledge (Multiple Choice) 20181116 - HCBBS Forum
66. In a process flow diagram, what does PFD stand for? - HCBBS Forum
67. Calculation of thermal stress in the outlet pipeline of a safety valve - HCBBS Forum
68. Can phosphate rock and sulfuric acid not react directly? - HCBBS Forum
69. Vapor and liquid phase temperatures - HCBBS Forum
70. What happens when a large fan and a small fan are connected in series? - HCBBS Forum
71. MSM2013 Experimental Ultrafiltration and Microfiltration Membrane Separation Unit/Dual-Pump Dual-System - HCBBS Forum
72. SY/T5257-2012 Steel heat-induced elbow for oil and gas transmission - HCBBS Forum
73. Fundamentals of Manufacturing Processes (Multiple Choice) 20180728 - HCBBS Forum
74. Three-way fitting, RED, SMLS, BW, GB/T 8163 20, SH/T 3408, DN150x100, SCH20xSCH20? - HCBBS Forum
75. Analysis and Discussion on a Major Explosion Accident Involving 11￥30 of U Substance - HCBBS Forum
76. Heat exchanger selection calculation - HCBBS Forum
77. How is stable flow delivery of exhaust gas to the incinerator achieved? - HCBBS Forum
78. Heat exchanger selection - HCBBS Forum
79. How to clean tube heat exchangers efficiently - HCBBS Forum
80. PP pipe: Nominal diameter and outer diameter comparison standard - HCBBS Forum
81. Understanding Henry's Law - HCBBS Forum
82. Regarding the high-temperature steam heating process for hydrogenating triphenyl! - HCBBS Forum
83. saturated steam - HCBBS Forum
84. Selection of biogas desulfurization processes - HCBBS Forum
85. Gasoline Hydrogenation SIS - HCBBS Forum
86. How should I phrase this question? - HCBBS Forum
87. What is the minimum diameter of a lined pipe that can be achieved? - HCBBS Forum
88. Issues related to ladder platforms on vertical containers - HCBBS Forum
89. Basic Process Knowledge (Multiple Choice) 20181016 - HCBBS Forum
90. Selection of drying equipment - HCBBS Forum
91. liquid seal - HCBBS Forum
92. Regarding the issue of calculating wall thickness - HCBBS Forum
93. Hazard index issues in Table A.0.1 of HGT 20660-2017 - HCBBS Forum
94. 【Book of the day】 "No water leaks"[beautiful] jeffreydeaver.epub - HCBBS Forum
95. Must thermal power plant liquid ammonia storage tanks be dedicated storage tanks? - HCBBS Forum
96. Are there any good methods for adding powdered activated carbon? Prevent dust dispersion - HCBBS Forum
97. Fundamentals of Manufacturing Processes (Multiple Choice) 20180808 - HCBBS Forum
98. Who has come across these representations of the material used in PID pipes, and what are the corresponding national standards for each? - HCBBS Forum
99. Toluene is present in hydrochloric acid gas; what type of fan can withstand corrosion from benzene chloride gas? - HCBBS Forum
100. Technical issues with water pressure in eye washers - HCBBS Forum