English — Forum #723 (Page 543/642)

1. What are the differences in failure modes between tower vessels and vertical vessels? - HCBBS Forum
2. Ammonia water production from stripping gas - HCBBS Forum
3. Difference between dissolution and absorption, please advise - HCBBS Forum
4. Quantity calculation - HCBBS Forum
5. Corrosion prevention measures for phosphorus fertilizer non-metallic materials - HCBBS Forum
6. Chemical Engineering in Everyday Life – Question 35: To make meat tender, salt should be added later, right? Standard answer already exists - HCBBS Forum
7. Explosion protection rating required for the motor of silanes - HCBBS Forum
8. Incident Handling 25: How to deal with blockage at the slag discharge port of a circulating fluidized bed boiler furnace? - HCBBS Forum
9. What are the downstream sectors of the urea industry? - HCBBS Forum
10. Is it possible if λc > 1.2? - HCBBS Forum
11. What is the market situation for methanol-derived products such as acetic acid and ethylene glycol? - HCBBS Forum
12. 【Daily Question】Wastewater Knowledge--August 25 (2 points for answering, 4 points for a correct answer) - HCBBS Forum
13. Daily sign-in failed. . What to do about the sequelae? . . - HCBBS Forum
14. The main factors affecting corrosion were summarized based on the corrosion tests of the lithium bromide solution inside the unit - HCBBS Forum
15. Regarding the forming of end caps - HCBBS Forum
16. Is the automation major difficult? - HCBBS Forum
17. Regarding the models of ultra-low temperature valves - HCBBS Forum
18. Heat treatment process and properties of high-wear-resistant cast iron - HCBBS Forum
19. Alkane Dehydrogenation UOP Process - HCBBS Forum
20. Benzene - HCBBS Forum
21. How to theoretically determine the quality of iron - HCBBS Forum
22. Separation of people and vehicles in the warehouse - HCBBS Forum
23. Explosion-proof touch civil screen - HCBBS Forum
24. Catalytic device - HCBBS Forum
25. Generally, for a 40-mesh 304 stainless steel wire mesh fire arrestor, what is the typical pressure drop? - HCBBS Forum
26. CO/methane online analyzer - HCBBS Forum
27. The main heat exchange methods for equipment such as condensers - HCBBS Forum
28. Which has a higher regulatory status, the Special Equipment Catalogue issued by the Quality and Supervision Bureau or the Fixed Pressure Vessels Regulations? - HCBBS Forum
29. Solving the overheating issue when driving to pick up gas - HCBBS Forum
30. Emulsifier specific for No. 32 machine oil - HCBBS Forum
31. The higher the top temperature of the coking fractionation tower, the higher the top pressure; why is it that the higher the top temperature of the stabilizer, the lower the top pressure? How to explain it? - HCBBS Forum
32. Continuous catalytic oxidation process for phosphorus removal from yellow phosphorus off-gases - HCBBS Forum
33. Confusions after three years at work. - HCBBS Forum
34. High temperature of the thrust bearing in the centrifugal pump - HCBBS Forum
35. What does ASME 2010ed+A11 mean? - HCBBS Forum
36. Methanol-to-hydrogen desorption gas process? - HCBBS Forum
37. What are the temperature requirements for dispersants and flocculants? - HCBBS Forum
38. Are there any requirements for the cooling water of mechanical seals? - HCBBS Forum
39. Seeking help regarding denitration of gas boilers - HCBBS Forum
40. Which metering pump manufacturers have a good reputation? - HCBBS Forum
41. 【Weekly Topic】- What to do if a company discharges wastewater secretly through hidden pipes? - HCBBS Forum
42. Operation of gasoline hydrocracking fractionator - HCBBS Forum
43. Transfer method for flammable liquids - HCBBS Forum
44. Chemical Engineering in Daily Life – Question 49: Why do towels become hard after being used for a while? But clothes won’t? How to make it softer? - HCBBS Forum
45. Flammable gas alarm - HCBBS Forum
46. Forging identification - HCBBS Forum
47. Discussion on the issue of frequent leakage in mechanical seals - HCBBS Forum
48. Turbine problem, please help me! - HCBBS Forum
49. Which company is good at manufacturing PTFE-lined valves? - HCBBS Forum
50. Elliptical gear flow meter - HCBBS Forum
51. How to calculate the full-open flow rate when a temperature and pressure reducer fails? - HCBBS Forum
52. Vacuum pump piston rod seal - HCBBS Forum
53. Has anyone used Weilun’s touch screen? - HCBBS Forum
54. Regarding the yield issue of the catalytic device - HCBBS Forum
55. For the electrical positioner of pneumatic control valves - HCBBS Forum
56. What issues should be considered in the structural design of the skirt of tower equipment? - HCBBS Forum
57. What is the importance of treating open-loop circulating cooling water systems? - HCBBS Forum
58. Why is it necessary to close the shut-off valve leading to the flare when adding white oil to the white oil tank? - HCBBS Forum
59. Rich and poor oil - HCBBS Forum
60. Does the arrangement of the holes in the noise-reducing sleeve of the control valve affect the valve’s flow regulation? - HCBBS Forum
61. Win7 64-bit PV Elite - HCBBS Forum
62. Can a Rosemount 3051 pressure transducer connected directly to 24V communicate with a handheld operator? Why? - HCBBS Forum
63. Under what circumstances should a radiation source level gauge be used? - HCBBS Forum
64. Super Bounty Feature, Haichuan Mutual Assistance Group Certification - HCBBS Forum
65. 【Daily Question】2015.08.21 Gauge Calibration (First 100 replies + 2 wealth points; extra 3–8 wealth points for correct answers) - HCBBS Forum
66. Latest water treatment technologies, equipment, and investment financing solutions - HCBBS Forum
67. Equipment Engineer, Shanghai – Recommendation bonus of 500 yuan - HCBBS Forum
68. Are there any friends from Maoming Petrochemical Ethylene Plant? - HCBBS Forum
69. Understand the purpose of using antifreeze in cranes - HCBBS Forum
70. Can welded pipes be used as test pieces for process evaluation? - HCBBS Forum
71. Principle and use of dual-chamber equilibrium containers - HCBBS Forum
72. Why does the speed control accuracy of variable-frequency motors exceed that of asynchronous motors? - HCBBS Forum
73. Heat treatment characteristics of metal cutting machine tool parts - HCBBS Forum
74. Is it hard to tell the differences between Cyberpunk-themed models? ? - HCBBS Forum
75. Chemical Engineering in Daily Life – Question 57: Why can’t scale be removed? - HCBBS Forum
76. Chemical Engineering in Everyday Life – Question 48: Why did the guy who sells soda on TD campus give me 4 bottles? - HCBBS Forum
77. Daily Question 2015.8.26 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (single-choice question) - HCBBS Forum
78. I have a daughter who has just come of age - HCBBS Forum
79. Discussion on replacing with Siemens MMC cards - HCBBS Forum
80. Who has the design and management system documents related to Sinopec? - HCBBS Forum
81. Control valve - HCBBS Forum
82. Introduce a manufacturer for TDS wastewater treatment - HCBBS Forum
83. Chemical Engineering in Daily Life – Question 56: How can we explain water droplets rolling on lotus leaves? - HCBBS Forum
84. What welding methods are used for P460NL1 steel plates with a tensile strength of 630 MPa, and what electrodes or wires are suitable for use? - HCBBS Forum
85. Ethanol is oxidized to acetic acid - HCBBS Forum
86. Market trends of the PVC market on August 19 - HCBBS Forum
87. verification - HCBBS Forum
88. Are there any specifications for inspecting the floating roof of a floating roof tank? - HCBBS Forum
89. Regarding the relationship between the melt flow ratio and polypropylene PPR pipe materials - HCBBS Forum
90. 【Daily Question】8.31 Design a seal Return +2； To +3 - HCBBS Forum
91. Issues with the boiler’s service life? - HCBBS Forum
92. Non-metallic gaskets for pressure vessel flanges - HCBBS Forum
93. Have you noticed that security experts tend to be quite thorough? - HCBBS Forum
94. E+H radar level gauge (please help, experts) - HCBBS Forum
95. Technical discussion: What is the phenomenon of salt formation in distillation columns? - HCBBS Forum
96. What are the steam balance calculation methods used by various design institutes? - HCBBS Forum
97. Problems faced by modern enterprises - HCBBS Forum
98. What process parameters and conditions are required for dehumidifiers? - HCBBS Forum
99. Chemical Engineering in Daily Life – Question 89: Do you know how to use face and hand towels correctly? - HCBBS Forum
100. When will the results of the first batch of auditor exams in 2015 be available? - HCBBS Forum