English — Forum #336 (Page 24/51)

1. 【Daily Question】Theoretical Foundation 2020.12.02 - HCBBS Forum
2. Xiaobai is asking for help: what is the purpose of the circulating water branch pipe? - HCBBS Forum
3. A333 GR.6 material issues - HCBBS Forum
4. May I ask which expert designed the toluene dehydration process? - HCBBS Forum
5. Regarding the prohibition of Class A and B warehouses within petrochemical facilities - HCBBS Forum
6. Layout and fire separation distances for liquefied carbon dioxide storage tanks? - HCBBS Forum
7. 【Daily Question】Theoretical Foundation 2020.04.25 - HCBBS Forum
8. Problems with the installation of the fire control room - HCBBS Forum
9. Requirements for the distance between cable trays and thermal pipelines - HCBBS Forum
10. For the export process of hazardous goods in Shanghai, it is first necessary to prepare the following documents to book a shipping slot - HCBBS Forum
11. Issues with nitrogen sealing and oil vapor recovery in storage tanks - HCBBS Forum
12. 【Daily Question】Theoretical Foundation 2020.09.06 - HCBBS Forum
13. 【Daily Question】Theoretical Foundation 2020.12.12 - HCBBS Forum
14. CAD drawing: A1 and A2 scale issues - HCBBS Forum
15. Qingdao Gulf Chemical Engineering Design Institute is recruiting design personnel and construction management staff - HCBBS Forum
16. What types of valves are used in ethylene plants? - HCBBS Forum
17. Design of the slope for gravity pipelines - HCBBS Forum
18. The head and shell wall thicknesses of vertical containers are different; how should the nominal diameter be chosen? - HCBBS Forum
19. Passivation of stainless steel storage tanks - HCBBS Forum
20. What are the definitions for packaging used in the transport of hazardous goods? What you need to know is here - HCBBS Forum
21. 【Daily Question】Theoretical Foundation 2020.05.10 - HCBBS Forum
22. Jiangsu launches the third round of safety risk inspections for hazardous chemicals such as *ao acid an! How much do you know? - HCBBS Forum
23. 【Daily Question】Theoretical Foundation 2021.1.06 - HCBBS Forum
24. Regarding the air volume of the air compressor - HCBBS Forum
25. Blowout disc calculation table - HCBBS Forum
26. Gentlemen, are there any other good methods for decolorizing white oil besides activated clay? - HCBBS Forum
27. 【Daily Question】Theoretical Foundation 2020.08.03 - HCBBS Forum
28. Over 137 deaths in Lebanese explosion; our country to carry out special inspections and rectifications regarding the safe storage of hazardous chemicals - HCBBS Forum
29. 【Daily Question】Theoretical Foundation 2020.11.12 - HCBBS Forum
30. Solving heat calculation problems? - HCBBS Forum
31. Spring bracket issue - HCBBS Forum
32. 【Daily Question】Theoretical Foundation 2020.09.16 - HCBBS Forum
33. May the saturated vapor pressure of a liquid (mixture), expressed as gauge pressure, be negative? Thank you - HCBBS Forum
34. Questions about methyl methacrylate - HCBBS Forum
35. 【Daily Question】Theoretical Foundation 2020.09.24 - HCBBS Forum
36. What type of welder’s certificate is required to work on high-temperature and high-pressure pipes in welding power plants? - HCBBS Forum
37. Bimodal simulation distillation column design software - HCBBS Forum
38. Regarding the setup of toxic gas probes - HCBBS Forum
39. Cavitation problem in acid liquid material transfer pumps - HCBBS Forum
40. 【Daily Question】Theoretical Foundation 2020.07.22 - HCBBS Forum
41. Aspen newbie here; I’d like to ask the experts for help – why isn’t the heat exchanger performing its heat exchange function? - HCBBS Forum
42. When purchasing purified water equipment, what details require special attention? - HCBBS Forum
43. Is a valve needed before steam enters the dividing cylinder? - HCBBS Forum
44. 【Daily Question】Theoretical Foundation 2021.02.03 - HCBBS Forum
45. How to determine extremely hazardous media and highly hazardous media in pressure pipelines? - HCBBS Forum
46. Chemical structure formula - HCBBS Forum
47. Issues regarding the determination of the size of gas-liquid separators - HCBBS Forum
48. Comprehensive Guide to Cost Accounting and Financial Management in Modern Engineering Projects - HCBBS Forum
49. Could you give some guidance on the formula for calculating the noise level of control valves? - HCBBS Forum
50. What is the maximum allowable storage amount of hydrogen peroxide in Class A factories? - HCBBS Forum
51. Does anyone have tutorials on chemical engineering CAD drawing? I’d like to learn it, thanks. . . - HCBBS Forum
52. Does a Y-type filter in a pressure pipeline require a supervision and inspection certificate? - HCBBS Forum
53. Is full enforcement required in GB now? - HCBBS Forum
54. CAESAR II - HCBBS Forum
55. Issues related to oil separators, solutions - HCBBS Forum
56. Looking for recommendations for well-known domestic manufacturers of tubular reactor design and fabrication - HCBBS Forum
57. I need help: what are the common refrigerants used in the chemical industry? - HCBBS Forum
58. Is draining water from oil tanks considered a special operation? Where is it from? - HCBBS Forum
59. Step-by-step derivation of the number of heat transfer units NTU - HCBBS Forum
60. 【Daily Question】Theoretical Foundation 2020.05.25 - HCBBS Forum
61. logarithmic mean velocity - HCBBS Forum
62. Instruction Manual for the Experimental Artificial Upper-Discharge Centrifuge - HCBBS Forum
63. Material selection in liquid chlorine media - HCBBS Forum
64. 【Daily Question】Theoretical Foundation 2020.08.15 - HCBBS Forum
65. Seeking help with organic synthesis catalysts - HCBBS Forum
66. What is the mirror method? - HCBBS Forum
67. Working with open flames involves risks; care must be taken when producing hazardous chemicals - HCBBS Forum
68. Issues related to the spacing of fire hydrants - HCBBS Forum
69. 【Daily Question】Theoretical Foundation 2021.1.08 - HCBBS Forum
70. Beware! Be careful! “Gas” poisoning is more dangerous than hazardous materials - HCBBS Forum
71. Which is the best central control system? - HCBBS Forum
72. Key points in the review of chemical engineering design drawings - HCBBS Forum
73. Big news! The 2nd Industrial Internet Conference for the Petrochemical Industry — Compilation of Sub
74. How can I find toxicity data for chemical substances? - HCBBS Forum
75. Reasons for lumps occurring after the start-up of the SPGⅡ process for the continuous polymerization of domestic polypropylene - HCBBS Forum
76. Problems with the placement of ultrafiltration membranes - HCBBS Forum
77. Gas Engineering Design Manual - HCBBS Forum
78. Are isopropanol and isopropyl ethanol the same substance? - HCBBS Forum
79. To cope with cold snaps, safety in the production of hazardous chemicals must be ensured with caution - HCBBS Forum
80. Standards related to the evaluation of solid catalyst performance - HCBBS Forum
81. Economic account of flue gas waste heat recovery - HCBBS Forum
82. Crystallization corrosion - HCBBS Forum
83. Oracle suspends all operations in Russia - HCBBS Forum
84. How is the chemical energy of coal and gas calculated? - HCBBS Forum
85. Coal Chemical Engineering Processes, edited by Chen Qiwen - HCBBS Forum
86. Does the absorption tower being used to absorb oil and gas at around 100 degrees have an impact on the tower? - HCBBS Forum
87. 【Daily Question】Theoretical Foundation 2020.11.17 - HCBBS Forum
88. Design of control of steam heater and condensate tank level regulating valve of waste heat recovery device - HCBBS Forum
89. 【Daily Question】Theoretical Foundation 2020.09.02 - HCBBS Forum
90. Why is PN25 used instead of PN16 when the temperature and pressure of liquefied hydrocarbons are not high? Where is this specified? - HCBBS Forum
91. Big brother, seeking help with isooctanol issues - HCBBS Forum
92. 【Daily Question】Theoretical Foundation 2020.06.08 - HCBBS Forum
93. 【Daily Question】Theoretical Foundation 2020.11.25 - HCBBS Forum
94. PID parameters - HCBBS Forum
95. CAD drawings for acetic acid production - HCBBS Forum
96. Sulfur recovery technology - HCBBS Forum
97. Separation operation in a negative pressure distillation column - HCBBS Forum
98. 【Daily Question】Theoretical Foundation 2021.03.16 - HCBBS Forum
99. Looking for a design process or design firm for producing butenal from acetaldehyde? - HCBBS Forum
100. Pipes between devices in the factory - HCBBS Forum