English — Forum #723 (Page 461/642)

1. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for those who participate； Question 213 - HCBBS Forum
2. The Hilscher MACs5 shows \"Offline\" after the server is connected; it’s urgent - HCBBS Forum
3. 【Daily Question】11.14 True or False: Bearing box heating is a precursor to the pump seizing on its shaft - HCBBS Forum
4. Ten healthy foods that women need - HCBBS Forum
5. 【Daily Question】November 10, 2015: Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
6. Production Process Engineer, Qingyuan – Recommendation bonus of 500 yuan - HCBBS Forum
7. Color bleach powder can be used in this way too - HCBBS Forum
8. Software installation - HCBBS Forum
9. High-voltage motor - HCBBS Forum
10. Pump outlet pressure issue - HCBBS Forum
11. How to use the screen window in WinCC to create pop-up screens? - HCBBS Forum
12. How to apply the four options for safety valves in Aspen - HCBBS Forum
13. Where are the non-condensable gases discharged by the vacuum pumping system of the vacuum distillation tower sent? - HCBBS Forum
14. What’s the future for the refining industry in three years? - HCBBS Forum
15. For a complex process - HCBBS Forum
16. How tall and what diameter should the chimneys be for 2 35t boilers? - HCBBS Forum
17. Molecular sieve issue - HCBBS Forum
18. Civil Engineering Structure Discussion Area ----【Daily Question】Question from the 20151113 issue - HCBBS Forum
19. What are the evaluation principles for desulfurization processes? - HCBBS Forum
20. Sign-in record post from November 7, 2015 - HCBBS Forum
21. Can the cooling water from the reactor jacket, which is unpolluted, be discharged directly to the main discharge outlet? - HCBBS Forum
22. What are the requirements for sulfur dioxide emissions in China’s pollution control emission standards? - HCBBS Forum
23. Mechanical seal leakage - HCBBS Forum
24. How to make grooves for the stress expansion of titanium heat exchangers - HCBBS Forum
25. Coal grinder body seal ring - HCBBS Forum
26. What are the influencing factors of pulsed corona method? - HCBBS Forum
27. Pressure calculation for rectangular pipes - HCBBS Forum
28. What does “relieving rate” mean in API-521? Leakage rate? Unloading rate? - HCBBS Forum
29. Parameter control during self-circulation of propylene refrigeration - HCBBS Forum
30. Which events will affect the methanol market in 2016 - HCBBS Forum
31. Hydrogenation - HCBBS Forum
32. Question: Eliminating the impact of the converter in the methanol production process using coke oven gas - HCBBS Forum
33. Nitrogen temperature rise - HCBBS Forum
34. Seeking methods for producing high-purity liquid nitrogen through air separation - HCBBS Forum
35. How does everyone deal with rusted valves? - HCBBS Forum
36. Is denitrification in the AO process anaerobic? - HCBBS Forum
37. The carbonate issue in caustic soda - HCBBS Forum
38. 【Daily Question】11.13 True or False: An infrared thermometer measures an object by detecting the infrared radiation emitted by the object itself. - HCBBS Forum
39. 【Daily Question】11.12 Multiple-choice Question: The heavy metal content in hydrogenation feedstocks can be controlled by - HCBBS Forum
40. What is the difference between an elliptical gear flow meter and a Roots flow meter? - HCBBS Forum
41. 【Daily Question】Chemical Engineering Principles 232: Absorption (November 13) - HCBBS Forum
42. [Help] How to create openings in the structure of PDMS 12.0? - HCBBS Forum
43. What is a non-standard throttling device? - HCBBS Forum
44. On the dehydrogenation of isobutane to isobutylene - HCBBS Forum
45. 475 Manual controller for setting radar parameters - HCBBS Forum
46. The temperature difference between the two feed streams to the diesel hydrogenation feed heater is nearly 100 degrees - HCBBS Forum
47. Stabilized sludge reflux tank - HCBBS Forum
48. jacket tube - HCBBS Forum
49. Turbine flow detection - HCBBS Forum
50. Questions regarding the reaction riser nozzle - HCBBS Forum
51. I hope the seniors here can share some manufacturers of hydrogenation catalysts - HCBBS Forum
52. Instrument design issues - HCBBS Forum
53. How to filter dye water into clean water - HCBBS Forum
54. How much is each 42L6-A 50:1 ammeter? - HCBBS Forum
55. Technology for producing calcium chloride from carbide slag - HCBBS Forum
56. Anti-corrosion solution for the catalytic top-cycle oil heat exchanger - HCBBS Forum
57. 【Daily Question】November 8, 2015: Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
58. Regarding gaskets - HCBBS Forum
59. What are the specific methods for removing manganese? - HCBBS Forum
60. Can mixed gas be liquefied? - HCBBS Forum
61. Questions about water-soluble phenolic resins - HCBBS Forum
62. What is the optimal temperature for hot salt water to backwash the resin? - HCBBS Forum
63. Can pipes be bent coldly arbitrarily? What are the regulations regarding the bevels for pipe joining? - HCBBS Forum
64. Mass flow meter - HCBBS Forum
65. Global perspective, a significant gap—lessons from Germany’s three major chemical companies for China - HCBBS Forum
66. Regarding the cold filter plugging point of diesel - HCBBS Forum
67. How is clock synchronization achieved in control systems? - HCBBS Forum
68. Drainage issue in the U-tube of Coriolis flowmeters in winter - HCBBS Forum
69. C272 extraction process - HCBBS Forum
70. Sign-in record post from November 8, 2015 - HCBBS Forum
71. Weekly topic: 5 Wealth points for correct answers, 2 Wealth points for participation； Question 210 - HCBBS Forum
72. Base oil prices keep hitting new lows; the bullish trend is unlikely to return - HCBBS Forum
73. Does a DN25 pipe with a pressure of 25 Mpa qualify as a pressure pipeline? - HCBBS Forum
74. The principle of measuring gases using a differential pressure elliptical flow meter - HCBBS Forum
75. Why don’t the major petrochemical industries use H2S directly to produce sulfuric acid? - HCBBS Forum
76. 【Daily Question】Question 42: Test question from issue 20151116 (Reply +2)； For the other +3) - HCBBS Forum
77. Issues regarding the costs of assessing major hazard sources! - HCBBS Forum
78. Do the pressure filters and rotary tube dryers in PTA plants use automatic greasing systems? - HCBBS Forum
79. Topics on equipment and production management (second week of November) - HCBBS Forum
80. [Unit conversion] How to convert benzene concentration to ppm - HCBBS Forum
81. What are the basic principles of work safety supervision and management? - HCBBS Forum
82. What is the optimal mass flow rate facing the heat pipe? - HCBBS Forum
83. What are the precautions when using an activated carbon filter? - HCBBS Forum
84. The issue of water solubility in benzene - HCBBS Forum
85. How to do 3-to-2 analog selection? - HCBBS Forum
86. Sign-in record post dated November 14, 2015 - HCBBS Forum
87. What are the steps required to reinstall the operator station of the deltatav system? - HCBBS Forum
88. Vibration problems in two-phase flow - HCBBS Forum
89. 【Daily Question】11.11 Multiple-choice question: Gasoline produced using ( ) can increase its octane rating. - HCBBS Forum
90. Sign-in record post from November 11, 2015 - HCBBS Forum
91. What is the upper limit of the pressure range that a differential pressure transmitter can measure? - HCBBS Forum
92. What is the purpose of supplying instrument air to the dilute salt acid reception tank? - HCBBS Forum
93. Industry is particularly sluggish this year, and it’s hard to say how bad things will be next year - HCBBS Forum
94. 【Daily Question】Chemical Engineering Principles 230: Stagnant Flow (November 11) - HCBBS Forum
95. What is the unbalanced separation mass transfer process? What are the main applications in the chemical industry? - HCBBS Forum
96. What are the protection principles for risk factors? - HCBBS Forum
97. Weekly Topic November 10, 2015 - HCBBS Forum
98. New process for the combined anaerobic-microalgae treatment of high-concentration organic wastewater - HCBBS Forum
99. /May I ask whether it is possible to adjust the flow rate manually on-site when the metering pump is out of service due to a fault? - HCBBS Forum
100. Into which categories can pressure vessels be divided based on their manufacturing principles? - HCBBS Forum