English — Forum #337 (Page 104/163)

1. What material should be used for sulfuric acid storage tanks? - HCBBS Forum
2. How to select pumps for transporting solid-containing media - HCBBS Forum
3. I have a question about vacuum pumps? - HCBBS Forum
4. What is a surface condenser? - HCBBS Forum
5. Chemical process design - HCBBS Forum
6. How much heat is required to heat 1 ton of water from 60 degrees Celsius (at a pressure of 2.65 MPa) to 250 degrees Celsius (at a pressure of 3.9 MPa)? - HCBBS Forum
7. Construction of chemical plant projects - HCBBS Forum
8. Liquid level interlock for small containers - HCBBS Forum
9. Fundamentals of Manufacturing Processes (Multiple Choice) 20181027 - HCBBS Forum
10. Basic Process Knowledge (Multiple Choice) 20180715 - HCBBS Forum
11. [Mechanical Equipment Technology Edition] Daily Question 201808022: Refrigeration Systems—Case Analysis (2.1) - HCBBS Forum
12. MTBE has been largely phased out; what will happen to its production facilities? - HCBBS Forum
13. Chlorine is a highly toxic chemical and also a highly hazardous substance. - HCBBS Forum
14. Can the insulation thickness for pressure vessels be found in a table? - HCBBS Forum
15. This heat exchanger is incredibly dirty. - HCBBS Forum
16. If the design agency is changed midway, how is the workload of the design agency calculated? - HCBBS Forum
17. I’m seeking help from fellow sailors regarding the industrial applications of catalysts in chemical plants - HCBBS Forum
18. Tubular heat exchanger for liquid-liquid heat exchange - HCBBS Forum
19. How to solve the problem of continuous burning during high-point venting at the tanks beneath the refinery unit? - HCBBS Forum
20. Thoughts on magnesium sulfate wastewater after magnesium oxide desulfurization - HCBBS Forum
21. Filtering in the production process of polyaluminum chloride - HCBBS Forum
22. Basic Process Knowledge (Multiple Choice) 20181126 - HCBBS Forum
23. PID problem - HCBBS Forum
24. Is it necessary to use a shielded pump for methanol, and should closed-system discharge and sampling be implemented? - HCBBS Forum
25. Disposal of by-product dilute hydrochloric acid - HCBBS Forum
26. Solvent dehydration, molecular sieve deep dehydration - HCBBS Forum
27. Suggestions for the modification of the aluminum trichloride powder feeding system for carbon pentene resin catalysts - HCBBS Forum
28. What is the distance between the location of the breather valve on the tank vent line and the tank outlet? - HCBBS Forum
29. Which one has higher control precision, a pneumatic control valve or an electric control valve? ? - HCBBS Forum
30. With 100 t of condensate at 0.6 MPa, what pressure of steam can be obtained through flash evaporation? - HCBBS Forum
31. Basic Process Knowledge (Multiple Choice) 20181113 - HCBBS Forum
32. Temperature control scheme for heat exchangers - HCBBS Forum
33. Problems with extractive distillation of ethyl acetate - HCBBS Forum
34. Basic Process Knowledge (Multiple Choice) 20180721 - HCBBS Forum
35. Is a chimney considered an open-flame device? - HCBBS Forum
36. How is wastewater treated? - HCBBS Forum
37. In the chemical production operation procedures, there are emergency plans for power outages, water supply issues, and instrument air shortages - HCBBS Forum
38. What are the hazards of excessive smoke-suppressing steam in torches? - HCBBS Forum
39. Problems encountered in the VOCS control project - HCBBS Forum
40. Air buffer tank - HCBBS Forum
41. Reactor loading factor - HCBBS Forum
42. 【HVAC Version】Daily Question 20180704 - HCBBS Forum
43. Under what circumstances is post-weld heat treatment necessary, and what standards should be followed for the heat treatment requirements? - HCBBS Forum
44. Problems with absolute pressure and gauge pressure in process applications - HCBBS Forum
45. Can a product made of materials resistant to high temperatures and corrosion be used in the chemical industry? - HCBBS Forum
46. Storage conditions for propylene oxide tank area (temperature and pressure) - HCBBS Forum
47. Shell and tube heat exchanger - HCBBS Forum
48. Is there an agency that determines the toxicity of mixtures? - HCBBS Forum
49. On the explosion of combustibles - HCBBS Forum
50. Centrifugal pumps and reciprocating pumps - HCBBS Forum
51. Should the power distribution for the sewage treatment plant be designed as a secondary load? ? What regulations specify it? - HCBBS Forum
52. Compressor selection - HCBBS Forum
53. Basic Process Knowledge (Multiple Choice) 20180824 - HCBBS Forum
54. Selection of reactor nozzles - HCBBS Forum
55. Fundamentals of Manufacturing Processes (Multiple Choice) 20181127 - HCBBS Forum
56. Fundamentals of Processing Technology (Multiple Choice) 20181105 - HCBBS Forum
57. Calculation for mixing the same gas at different temperatures - HCBBS Forum
58. Indicators for industrial circulating water - HCBBS Forum
59. Waste activated carbon regeneration process package? Please inform the design institute - HCBBS Forum
60. When the turbine is shut down, the vacuum is broken - HCBBS Forum
61. How to choose the fire protection distance for boilers? - HCBBS Forum
62. How should the heating and cooling rates for different processes be determined? - HCBBS Forum
63. Deaerator Technical Agreement.pdf - HCBBS Forum
64. The control room is located in an explosion-proof area; what should be done with the control cabinets? - HCBBS Forum
65. Why can’t chloromethane enter the RTO? - HCBBS Forum
66. Burial of high-concentration wastewater from chemical plants - HCBBS Forum
67. Polypropylene plant process flow - HCBBS Forum
68. Fundamentals of Manufacturing Processes (Multiple Choice) 20181013 - HCBBS Forum
69. What’s the future after the shutdown of MTBE? - HCBBS Forum
70. Can’t toilets be installed in Class A production workshops? - HCBBS Forum
71. Water treatment - HCBBS Forum
72. The special role of heat retention? - HCBBS Forum
73. I have a question regarding the cooling of wet air - HCBBS Forum
74. Is it necessary to apply petrochemical regulations to ammonia cooling systems? - HCBBS Forum
75. Why doesn’t the petrochemical code specify spacing requirements for Class D and E installations? - HCBBS Forum
76. 【HVAC Version】Daily Question 20180621 - HCBBS Forum
77. What happens to used lubricating oil? - HCBBS Forum
78. Selection of control valves - HCBBS Forum
79. Fundamentals of Manufacturing Processes (Multiple Choice) 20180720 - HCBBS Forum
80. Final entries of the 12th National College Students’ Chemical Engineering Design Competition (2018) - HCBBS Forum
81. Stokes' law - HCBBS Forum
82. How to separate water from exhaust gases - HCBBS Forum
83. June 2018: Allocation Plan for Haichuan Coins as Incentives for the Process Division - HCBBS Forum
84. May I ask which standard you use to calculate the KV value of control valves? ? - HCBBS Forum
85. Are there any websites where I can check the chemical reactions that a substance can undergo? - HCBBS Forum
86. Methanol methacraldehyde azeotrope - HCBBS Forum
87. Regarding guided wave radar - HCBBS Forum
88. 【Help needed】Freshman in chemical engineering - HCBBS Forum
89. Fundamentals of Manufacturing Processes (Multiple Choice) 20180714 - HCBBS Forum
90. Distillation and dehydration of NMP from lithium battery recycling liquid - HCBBS Forum
91. How to remove ethylene gas - HCBBS Forum
92. Spherical tank support calculation - HCBBS Forum
93. The trinity of sewage pumps - HCBBS Forum
94. Basic Process Knowledge (Multiple Choice) 20180711 - HCBBS Forum
95. Table of requirements submitted to the fire protection team regarding the process - HCBBS Forum
96. Wastewater recycling - HCBBS Forum
97. 【HVAC Version】Daily Question 20180618 - HCBBS Forum
98. One question on distillation operations - HCBBS Forum
99. A Must-Read for Chemical Workers – Operators - HCBBS Forum
100. Fundamentals of Manufacturing Processes (Multiple Choice) 20180901 - HCBBS Forum