English — Forum #336 (Page 32/51)

1. [Daily Question] Theoretical Basis 2020.04.28 - HCBBS Forum
2. Seeking the \"Standards for Procurement Management in State-Owned Enterprises\" and the \"Operational Standards for Procurement in State-Owned Enterprises\" - HCBBS Forum
3. Plate towers and packed towers - HCBBS Forum
4. Old K says every week – Talking about things in the petrochemical design industry. Post 56: Pipeline research - HCBBS Forum
5. Can the overflow water from chemical plants that produce synthetic ammonia, methanol, etc. be discharged into the rainwater drainage system? - HCBBS Forum
6. Science popularization! Learn about hazardous chemicals safety to prevent accidents from happening again! - HCBBS Forum
7. Can carbon steel be used for liquid ammonia storage tanks and pipelines at 11℃ and -33℃? - HCBBS Forum
8. How to explain the formula of upper and lower surface pressure in the derivation of the basic equation of hydrostatics based on Tianda Chemical Engineering Principle? - HCBBS Forum
9. [Daily Question] Theoretical Basis 2020.12.09 - HCBBS Forum
10. One-pass reboiler configuration - HCBBS Forum
11. Design of the overflow pipe - HCBBS Forum
12. How to determine the scope of chemical cleaning - HCBBS Forum
13. What hydrochloric acid is used for zinc chloride? - HCBBS Forum
14. If acetonitrile undergoes polymerization, will it affect the UV determination of preparative-grade acetonitrile? - HCBBS Forum
15. Can the exhaust gas from atmospheric pressure storage tanks be discharged into a low-voltage system? - HCBBS Forum
16. 【Daily Question】Theoretical Foundation 2020.10.09 - HCBBS Forum
17. Introduction to manual discharge centrifuges - HCBBS Forum
18. What is the density of water at different temperatures and pressures? - HCBBS Forum
19. Design of a tubular heat exchanger for heating crude oil with diesel - HCBBS Forum
20. Regulations on Packaging Inspection for Hazardous Goods Exported by Sea - HCBBS Forum
21. What is the relationship between the various phases in the iron-carbon phase diagram? - HCBBS Forum
22. Distillation reflux issue - HCBBS Forum
23. Quality of ash water from coal water slurry gasification - HCBBS Forum
24. Gullies are installed in Class A and B factories - HCBBS Forum
25. What is the flow velocity range inside the tubes of a shell-and-tube heat exchanger? - HCBBS Forum
26. 【Daily Question】Theoretical Foundation 2020.08.14 - HCBBS Forum
27. Common reactors in metal smelting - HCBBS Forum
28. 【Daily Question】Theoretical Foundation 2020.12.28 - HCBBS Forum
29. Discussion on the problem of simultaneous feeding and discharging of two storage tanks - HCBBS Forum
30. 【Daily Question】Theoretical Foundation 2020.05.17 - HCBBS Forum
31. Where does the overflow water from the circulating water system go? Does it need to be sent to a wastewater treatment facility for processing? - HCBBS Forum
32. 【Daily Question】Theoretical Foundation 2020.11.29 - HCBBS Forum
33. Chemical engineering calculations - HCBBS Forum
34. Trade-offs between flow pattern adjustment and its impact on heat transfer margin in HTRI - HCBBS Forum
35. Argon distillate problems - HCBBS Forum
36. Are those mature industrial hydrogenation reactions carried out in slurry bed reactors involving gas-liquid-solid reactions? - HCBBS Forum
37. Is insulation required for coal tar exhaust pipelines? - HCBBS Forum
38. 【Daily Question】Theoretical Foundation 2021.04.21 - HCBBS Forum
39. 188-Upgrade plan for the gas-liquid separation at the top of the esterification tower in the syngas ethylene glycol project using vane-type demister technology - HCBBS Forum
40. Specifications for the connection of pipe ends in graphite equipment - HCBBS Forum
41. Accidentally converted all the wealth into points - HCBBS Forum
42. Separation of hydrogen and cyclohexane at atmospheric pressure and -5°C - HCBBS Forum
43. Seeking a designer and manufacturer for magnesium nitrate decomposition furnaces - HCBBS Forum
44. 【Daily Question】Theoretical Foundation 2020.04.26 - HCBBS Forum
45. Regarding the blast-resistant control room, the first step is to conduct blast resistance calculations to determine the requirements. What software is available for such calculations currently? What method was used? - HCBBS Forum
46. 【Daily Question】Theoretical Foundation 2020.07.25 - HCBBS Forum
47. In chemical production, how are the calculation parameters for many formulas obtained? Pray to the deity - HCBBS Forum
48. A pressure vessel manufacturing unit that holds the design qualification for pressure vessels should focus on designing products of its own manufacture. Why is this incorrect? - HCBBS Forum
49. How much heat is released when water at 1.8MPa and 137℃ is depressurized? - HCBBS Forum
50. Which brand’s Roots liquid ring vacuum pump is the best? Seeking advice, thank you! - HCBBS Forum
51. 【Daily Question】Theoretical Foundation 2021.04.14 - HCBBS Forum
52. 【Daily Question】Theoretical Foundation 2020.09.30 - HCBBS Forum
53. Pipe grade - HCBBS Forum
54. Is it necessary to consider fire separation distances for the canopies in the Class C material unloading area? - HCBBS Forum
55. Reasons for vibration in the centrifuge during feeding - HCBBS Forum
56. Differences between ideal flow, ideal reactors, non-ideal flow, and non-ideal reactors - HCBBS Forum
57. What to do in the event of an explosion involving hazardous chemicals? Read this to learn self-rescue methods! - HCBBS Forum
58. Popular Science on Hazardous Chemicals: Sodium chlorate - HCBBS Forum
59. What do you know about hazardous waste? The most comprehensive information is here - HCBBS Forum
60. The Aspen Plus simulation of the heat exchanger shows the following warnings - HCBBS Forum
61. 【Daily Question】Theoretical Foundation 2021.04.15 - HCBBS Forum
62. How to accurately define chemical enterprises and hazardous chemical enterprises? - HCBBS Forum
63. Bidding plan for chemical enterprises - HCBBS Forum
64. 【Daily Question】Theoretical Foundation 2020.12.10 - HCBBS Forum
65. The yin-yang bed failed the regeneration test once - HCBBS Forum
66. Seeking help with circulating water system design - HCBBS Forum
67. Measures to address corrosion and wear in water ring vacuum pumps - HCBBS Forum
68. 8 Essential Safety Devices for Chemical Industry Workers: What You Need to Know - HCBBS Forum
69. Foreign pipeline design codes for nitric acid plants - HCBBS Forum
70. 【Daily Question】Theoretical Foundation 2020.05.01 - HCBBS Forum
71. 【Daily Question】Theoretical Foundation 2020.09.13 - HCBBS Forum
72. Preliminary Design Specification for Maoming Petrochemical’s 150,000-ton-per-year Propylene Oxide Production Project - HCBBS Forum
73. Can a pneumatic control valve be used as an emergency shut-off valve? - HCBBS Forum
74. 【Daily Question】Theoretical Foundation 2020.06.09 - HCBBS Forum
75. Cooperation in the promotion of process technologies for producing chloromethane from hydrochloric acid - HCBBS Forum
76. Design of hydrogen-containing waste gas pipelines - HCBBS Forum
77. Given the pipe diameter, pressure difference, and material composition, can the flow velocity or flow rate be determined? - HCBBS Forum
78. Pipe nominal diameter and outer diameter comparison table - HCBBS Forum
79. Fire in the hydrochloric acid synthesis exhaust pipe - HCBBS Forum
80. I recommend several commonly used calculation charts manuals in the chemical industry: Chemical Property Calculation Charts Manual, Chemical Process Calculation Charts Manual, and Chemical Equipment Calculation Charts Manual - HCBBS Forum
81. 【Daily Question】Theoretical Foundation 2020.05.20 - HCBBS Forum
82. Temperature setting for storage in the tank - HCBBS Forum
83. Talking about density functional theory - HCBBS Forum
84. 【Daily Question】Theoretical Foundation 2020.06.22 - HCBBS Forum
85. 【Daily Question】Theoretical Foundation 2020.05.16 - HCBBS Forum
86. In actual industrial production processes, how is the product control in distillation columns generally achieved? - HCBBS Forum
87. For chilled water, hexanediol at -15℃ is used – should control measures be implemented, and is it necessary to install a safety valve? - HCBBS Forum
88. A set of coolers, for reference - HCBBS Forum
89. Calculation approach for batch reactors – Summary - HCBBS Forum
90. The project’s objectives are in line with the actual situation - HCBBS Forum
91. XV PV valve - HCBBS Forum
92. Is a 150,000-ton C5 separation unit considered a large-scale project or a medium-scale project? - HCBBS Forum
93. What is the purpose of designing a small bypass line at the pump outlet check valve? - HCBBS Forum
94. Process package requirements - HCBBS Forum
95. Material data - HCBBS Forum
96. Should the ‘g’ for gauge pressure be in lowercase or uppercase? - HCBBS Forum
97. 【Daily Question】Theoretical Foundation 2020.12.04 - HCBBS Forum
98. 【Daily Question】Theoretical Foundation 2020.08.13 - HCBBS Forum
99. 【Daily Question】Theoretical Foundation 2020.12.30 - HCBBS Forum
100. Books on sulfuric acid production processes - HCBBS Forum