English — Forum #336 (Page 25/51)

1. Regarding the problem of sulfur concentration in silver corrosion! - HCBBS Forum
2. Regarding the question of how to calculate the duration of eligibility for taking an exam - HCBBS Forum
3. Are there any books available for learning about Yokogawa’s DSC and SIS systems? - HCBBS Forum
4. COD in wastewater - HCBBS Forum
5. A few questions about split-range control? Is it definitely a gas shut-off valve going downward? - HCBBS Forum
6. The principle of plant extraction centrifuges - HCBBS Forum
7. 【Daily Question】Theoretical Foundation 2020.09.25 - HCBBS Forum
8. What does it mean that the oxygen system requires check valves to be impact-free check valves? - HCBBS Forum
9. How to calculate pressure potential energy using pressure, pipe diameter, and flow rate? - HCBBS Forum
10. In what aspects do small laboratory centrifuges meet GMP standards? - HCBBS Forum
11. The effect of clay acidification - HCBBS Forum
12. 【Daily Question】Theoretical Foundation 2021.02.09 - HCBBS Forum
13. 【Daily Question】Theoretical Foundation 2020.11.26 - HCBBS Forum
14. Tail gas collection tank in the storage tank area - HCBBS Forum
15. Seeking help with DMF recovery-related issues - HCBBS Forum
16. Seek solutions, thermodynamics - HCBBS Forum
17. The pH issue of liquid caustic and sodium sulfide solutions. - HCBBS Forum
18. Old K says every week – talking about things in the petrochemical design industry. Post 58: Chemical design should take into account the needs of field operators - HCBBS Forum
19. Confusions in choosing materials for pipes and pipe fittings - HCBBS Forum
20. 【Daily Question】Theoretical Foundation 2021.04.09 - HCBBS Forum
21. Sharing Principles of Chemical Engineering, 3rd Edition, edited by Chai Chengjing and Jia Shaoyi - HCBBS Forum
22. Summary of the specialty based on physical chemistry and transport principles - HCBBS Forum
23. 【Daily Question】Theoretical Foundation 2021.1.31 - HCBBS Forum
24. Calculation of the nominal thickness of the cylinder body - HCBBS Forum
25. Water filling facility for vinyl chloride monomer storage tanks in the PVC industry - HCBBS Forum
26. Design of the butane-based maleic anhydride project - HCBBS Forum
27. For medium-pressure steam at 4.0 MPa, at what temperature does it start to contain water? - HCBBS Forum
28. How to distinguish between vent valves and drain valves on a process flow diagram? - HCBBS Forum
29. Diethylene glycol dimethyl ether - HCBBS Forum
30. Operating conditions of steel-lined equipment - HCBBS Forum
31. Physical and chemical parameters of air - HCBBS Forum
32. Is the traditional chemical industry facing a period of restructuring? - HCBBS Forum
33. Does the normal ventilation volume include natural ventilation? - HCBBS Forum
34. How to import self-drawn equipment into CADWORX to facilitate the addition of nozzles and platforms, etc - HCBBS Forum
35. 【Daily Question】Theoretical Foundation 2020.05.04 - HCBBS Forum
36. The issue of selecting the structural characteristic coefficients for end caps - HCBBS Forum
37. What are the operational differences between conventional high-temperature and high-pressure units and dual super-reheat units? - HCBBS Forum
38. 【Daily Question】Theoretical Foundation 2020.08.02 - HCBBS Forum
39. Vacuum sintering furnace for alloy materials - HCBBS Forum
40. pyrolyzer - HCBBS Forum
41. 【Daily Question】Theoretical Foundation 2021.03.03 - HCBBS Forum
42. The ASPEN process simulation is used to absorb CO2, and the results are shown in the figure below. How can this issue be resolved? - HCBBS Forum
43. Do hydrocarbon-containing wastewater belong to non-flammable liquids or what category do they fall into? - HCBBS Forum
44. 【Daily Question】Theoretical Foundation 2020.12.18 - HCBBS Forum
45. Explosion-proof design for the control room of hydrogen compression stations - HCBBS Forum
46. Regarding the breathing volume of the breather valve - HCBBS Forum
47. 【Daily Question】Theoretical Foundation 2020.06.06 - HCBBS Forum
48. Pressure drum filter - HCBBS Forum
49. 【Daily Question】Theoretical Foundation 2021.1.30 - HCBBS Forum
50. How to fix crashes in SmartPlant Review 2018 while in use - HCBBS Forum
51. , - HCBBS Forum
52. NON-CHROME RESPURT anti-corrosion coating, stainless steel coating, reduces electrocorrosion, acid and alkali resistant coating - HCBBS Forum
53. 【Daily Question】Theoretical Foundation 2020.07.01 - HCBBS Forum
54. 【Daily Question】Theoretical Foundation 2020.07.15 - HCBBS Forum
55. How to replace the drum bearing of a horizontal spiral centrifuge - HCBBS Forum
56. Questions about the dimethyl ether vaporization tower - HCBBS Forum
57. 【Daily Question】Theoretical Foundation 2020.07.27 - HCBBS Forum
58. The momentum balance equation is essentially the Bernoulli equation balance, right? - HCBBS Forum
59. The latest procedures for handling construction approvals for chemical plants - HCBBS Forum
60. Chemical reactor design - HCBBS Forum
61. Help needed - HCBBS Forum
62. 2019 registered chemical engineering public basic video course (dual institution) - HCBBS Forum
63. Process and equipment for extracting silica from straw - HCBBS Forum
64. 【Daily Question】Theoretical Foundation 2020.07.31 - HCBBS Forum
65. Solution to the calculation of water absorbing SO2 in examples of modern packed tower technology - HCBBS Forum
66. Seeking help from experts - HCBBS Forum
67. Big brother, thank you so much for helping with the calculations - HCBBS Forum
68. Pickling and passivation - HCBBS Forum
69. [Daily Question] Theoretical Basis 2020.11.18 - HCBBS Forum
70. 【Daily Question】Theoretical Foundation 2020.05.21 - HCBBS Forum
71. consult: Problems with flanges and fasteners used in 32% caustic soda pipelines - HCBBS Forum
72. Nine major design institutes of the Ministry of Chemical Industry - HCBBS Forum
73. The issue of the same fire separation distance between liquid ammonia storage tanks as that for liquefied hydrocarbons - HCBBS Forum
74. The issue of component variation in distillation columns - HCBBS Forum
75. 【Daily Question】Theoretical Foundation 2020.08.28 - HCBBS Forum
76. When designing the evaporation crystallization process for the coexistence of sodium sulfate and sodium chloride, how should the concentration of the waste brine discharged be determined? - HCBBS Forum
77. Is it necessary to consider slope design when designing steam pipes? - HCBBS Forum
78. Mechanical Drawing Manual (Clear Version) - HCBBS Forum
79. 【Daily Question】Theoretical Foundation 2020.09.22 - HCBBS Forum
80. The process parameters of actual industrial plants always differ from the theoretical values; since we are concerned with the actual process, we study the theory - HCBBS Forum
81. Do the windows in closed chemical production facilities (that can be opened and closed manually) count as natural ventilation systems? - HCBBS Forum
82. Explanation of each part of the pipeline number - HCBBS Forum
83. Comprehensive list of reactor examples - HCBBS Forum
84. Heat treatment consultation - HCBBS Forum
85. Is general corrosion the same as electrochemical corrosion? - HCBBS Forum
86. Minimum horizontal distance between buried water supply lines and railways - HCBBS Forum
87. Pump inlet pipeline - HCBBS Forum
88. Buried earth-gray cast iron water supply pipes - HCBBS Forum
89. 【Daily Question】Theoretical Foundation 2020.11.03 - HCBBS Forum
90. Issues regarding the construction of civil foundations for chemical plants in coastal areas - HCBBS Forum
91. Fixed-bed reactors are more important than tubular reactors and batch reactors; then why do textbooks focus on the latter? - HCBBS Forum
92. Is dichloromethane corrosive to PVDF? - HCBBS Forum
93. Which domestic company has a high-pressure polyethylene plant? - HCBBS Forum
94. A 19-year-old boy was fined and had points deducted for illegally transporting hazardous materials on the spot - HCBBS Forum
95. Attention, hazardous chemicals enterprises! Guangdong Province launches a special campaign to regulate special operation permits - HCBBS Forum
96. How to escape in the event of a gas leak during the transport of hazardous materials? Look here quickly - HCBBS Forum
97. Seeking instrumentation control and process design personnel; starting salary: 12,000 RMB/month (Xi’an, Dalian). Direct hire by the employer - HCBBS Forum
98. 【Daily Question】Theoretical Foundation 2021.04.16 - HCBBS Forum
99. What is pressure pipeline approval? What kind of pipelines require approval? Is it the pressure pipeline being used? - HCBBS Forum
100. Can negative pressure be sealed with a water seal tank? - HCBBS Forum