English — Forum #337 (Page 109/163)

1. Basic Process Knowledge (Multiple Choice) 20180331 - HCBBS Forum
2. **Is it not allowed to build a pilot plant on existing equipment? - HCBBS Forum
3. Request for diagram of liquid chlorine tank truck unloading - HCBBS Forum
4. Ethanol at minus 50℃ is stored in normal pressure vertical containers (about 3m3) - HCBBS Forum
5. What does hw mean in PID? - HCBBS Forum
6. Cooling of gas during washing - HCBBS Forum
7. Regarding the issue of flow rate - HCBBS Forum
8. How to draw the electric heat tracing pipes for the pressure tapping lines and the lines before the pump in a PID? - HCBBS Forum
9. [Mechanical Equipment Technology Edition] Daily Question 201805005: Common Faults of Screw Refrigeration Compressors (8) - HCBBS Forum
10. Recovery of o-nitrotoluene - HCBBS Forum
11. 【HVAC Version】Daily Question 20180212 - HCBBS Forum
12. overflow - HCBBS Forum
13. Basic Process Knowledge (Multiple Choice) 20180326 - HCBBS Forum
14. Fundamentals of Processing Technology (Multiple Choice) 20180502 - HCBBS Forum
15. Basic Process Knowledge (Multiple Choice) 20180307 - HCBBS Forum
16. Relationship between flow rate and pressure during hydrotesting - HCBBS Forum
17. 『Original by HaiChuan Translation Team』An Overview of the Process Design Industry (Part 1) - HCBBS Forum
18. Basic Process Knowledge (Multiple Choice) 20180201 - HCBBS Forum
19. What year was the latest version of the Work Safety Law issued? - HCBBS Forum
20. Basic Process Knowledge (Multiple Choice) 20180609 - HCBBS Forum
21. 【HVAC Version】Daily Question 20180606 - HCBBS Forum
22. Basic Process Knowledge (Multiple Choice) 20180324 - HCBBS Forum
23. Regarding the issue of steam cooling - HCBBS Forum
24. Does a sight glass or flow meter with only one valve at the front end meet the specifications? - HCBBS Forum
25. Abnormal flow fluctuation in the plunger metering pump - HCBBS Forum
26. 【HVAC Version】Daily Question 20180501 - HCBBS Forum
27. Regarding Kettler reboilers, we have already determined the heat exchange area – are there any standards available for selection? - HCBBS Forum
28. What determines whether fire protection is needed for equipment and its foundations? - HCBBS Forum
29. Will adding a spray pipe here improve the extraction efficiency? - HCBBS Forum
30. Seeking help with device number, as shown in the image - HCBBS Forum
31. What are the prospects for producing tert-butylamine via isobutylene amination? - HCBBS Forum
32. How to improve the PSA hydrogen recovery rate - HCBBS Forum
33. [Mechanical Equipment Technology Edition] Daily Question 201802028: Common Faults in Refrigeration Systems (9.9) - HCBBS Forum
34. 【HVAC Version】Daily Question 20180313 - HCBBS Forum
35. Seek a standard CAD drawing legend for pipeline pumps - HCBBS Forum
36. Issues with the discharge location of safety valves or relief systems for hydrogen or hydrogen-rich gases - HCBBS Forum
37. What factors can cause an increase in the outlet pressure of an ammonia compressor? - HCBBS Forum
38. All entries from the 2017 National Final of the Chemical Engineering Design Competition - HCBBS Forum
39. 【HVAC Version】Daily Question 20180308 - HCBBS Forum
40. Quench spray issue - HCBBS Forum
41. Breather valve and safety valve on atmospheric pressure tanks - HCBBS Forum
42. Alcohol distillation - HCBBS Forum
43. Petrochemical piping design standards - HCBBS Forum
44. 0.3 micron molecular sieve filtration and washing - HCBBS Forum
45. Important and unimportant - HCBBS Forum
46. Why is PIC marked as PIT in the flow diagrams of chemical process instruments? - HCBBS Forum
47. Minimum thickness and nominal thickness - HCBBS Forum
48. What is the typical ethylene conversion rate in the gas-phase fluidized-bed polyethylene polymerization process? - HCBBS Forum
49. Discussion on the installation of import and export valves for equipment, processes, and materials - HCBBS Forum
50. How to learn *process design from scratch, for beginners - HCBBS Forum
51. The azeotropy problem of water and methacraldehyde - HCBBS Forum
52. Basic Process Knowledge (Multiple Choice) 20180314 - HCBBS Forum
53. Pressure difference measurement of the packing device - HCBBS Forum
54. 【HVAC Version】Daily Question 20180217 - HCBBS Forum
55. There are 3 branch pipes of the same diameter at different positions on a main pipe, and it is required that the flow rates in these branch pipes be equal. What is the simplest way to achieve this? - HCBBS Forum
56. Attention candidates for the Certified Safety Engineer exam in 2017: your certificates are now available for collection - HCBBS Forum
57. Is the valve model CZ40H-100 resistant to alkaline corrosion? - HCBBS Forum
58. High-pressure steam pipeline has been out of use for 4 years and is put back into operation - HCBBS Forum
59. Basic Process Knowledge (Multiple Choice) 20180205 - HCBBS Forum
60. 【HVAC Version】Daily Question 2018-3-31 (Multiple Choice) - HCBBS Forum
61. Regarding vacuum drying, the daily water evaporation amount is 40 tons. Is it still possible to consider using vacuum drying? - HCBBS Forum
62. Wet catalytic oxidation technology - HCBBS Forum
63. Basic Process Knowledge (Multiple Choice) 20180518 - HCBBS Forum
64. PDF to Word conversion software - HCBBS Forum
65. Several issues with nitrogen-sealed storage tanks - HCBBS Forum
66. Testing! Practice Questions for \"Fire Safety Technology Practice\" for First-Class Registered Fire Engineers - HCBBS Forum
67. Container installation elevation, minimum elevation - HCBBS Forum
68. What process is used to convert magnesium sulfite into magnesium sulfate? - HCBBS Forum
69. What should be used to absorb low-volume, high-concentration dichloromethane? - HCBBS Forum
70. Acceptance work for the renovation of environmental protection systems - HCBBS Forum
71. Process technology - HCBBS Forum
72. Factors limiting gas flow velocity in pipelines - HCBBS Forum
73. Issues with the clarification tank - HCBBS Forum
74. Basic Process Knowledge (Multiple Choice) 20180313 - HCBBS Forum
75. Basic Process Knowledge (Multiple Choice) 20180505 - HCBBS Forum
76. During the prolonged shutdown of the PSA unit associated with methanol-to-hydrogen production, how should the adsorbent and catalysts be handled? - HCBBS Forum
77. I would like to ask the expert instrucalc: what formula is used to calculate the reaction force? - HCBBS Forum
78. Mann turbine compressor - HCBBS Forum
79. Ethane dehydrogenation to produce ethylene, naphtha cracking to produce ethylene – what is the cost comparison for producing ethylene from methanol? - HCBBS Forum
80. Does anyone have NB/T47059? - HCBBS Forum
81. Questions regarding the selection of compressed air pipe diameter - HCBBS Forum
82. Flue gas standards - HCBBS Forum
83. 【Mechanical Equipment Technology Edition】Daily Question 20180307: Common Faults in Refrigeration Systems (9.13) - HCBBS Forum
84. Is it necessary to install a pressure gauge at the pump outlet? - HCBBS Forum
85. Basic Process Knowledge (Multiple Choice) 20180319 - HCBBS Forum
86. What does the designation of a spring support bracket mean? - HCBBS Forum
87. MIG welding parameters - HCBBS Forum
88. What type of building is a sulfur trioxide greenhouse? - HCBBS Forum
89. Methods to eliminate pulsation in piston pumps? - HCBBS Forum
90. hydrocracking - HCBBS Forum
91. 【Mechanical Equipment Technology Edition】Daily Question 20180402: Gas delivery volume control mechanism of screw refrigeration compressors (5) - HCBBS Forum
92. How to calculate the wetted area of a heat exchanger under fire conditions - HCBBS Forum
93. 【HVAC Version】Daily Question 20180222 - HCBBS Forum
94. New low-pressure exhaust gas treatment processes for chemical tank farms, loading/unloading equipment, and plant vacuum systems - HCBBS Forum
95. How to measure the temperature of low-temperature gases (helium or nitrogen) inside 1/4 stainless steel tubes - HCBBS Forum
96. 【HVAC Version】Daily Question 20180601 - HCBBS Forum
97. Safety valve allows influence of overpressure percentage - HCBBS Forum
98. Given ammonia’s strong reducing property, why doesn’t it react with oxygen at higher temperatures? - HCBBS Forum
99. 【HVAC Version】Daily Question 20180417 - HCBBS Forum
100. 【HVAC Version】Daily Question 20180423 - HCBBS Forum