English — Forum #723 (Page 329/642)

1. 【Basic Knowledge Activity】Professional “Basic Knowledge” in the petrochemical industry: What is the flash point of petroleum products? - HCBBS Forum
2. One question per day; those who answer correctly receive 5 wealth points, and those who participate receive 2 wealth points； Question 263 - HCBBS Forum
3. Is the Petrochemical Design Institute still a good place to find employment? - HCBBS Forum
4. What should be noted when constructing PTFE-lined steel pipes? - HCBBS Forum
5. 【Joint Study*】【Electrical Version 20160307】 - HCBBS Forum
6. Separation and purification of CO and H2 from the mixture - HCBBS Forum
7. [Weekly Topic] Discussion on the Impact of Water-Coal Slurry Heating on Gasification (March 14–20, 2016) - HCBBS Forum
8. Repair of wear on the roller press drive shaft - HCBBS Forum
9. Are there any effective solutions to the corrosion in the overhead circulation system of delayed coking fractionators? - HCBBS Forum
10. Ideas regarding the establishment of “Haichuan Event Planning Co., Ltd.” - HCBBS Forum
11. Painting issues with container equipment - HCBBS Forum
12. Issues with Siemens G120 frequency converter; seeking honest advice. - HCBBS Forum
13. Where should the oil-containing wastewater from underground tanks be discharged once its level reaches a certain point? - HCBBS Forum
14. What should the exhaust pressure of an oil-free vertical vacuum pump not exceed? - HCBBS Forum
15. Does this penalty count as a goal? - HCBBS Forum
16. Cyclic hydrogen flow rate - HCBBS Forum
17. How to fill a sealed container with nitrogen? - HCBBS Forum
18. Cloudiness occurs during COD colorimetry - HCBBS Forum
19. The boiler feed water is heated to 200 degrees. - HCBBS Forum
20. Feasibility of oxygen-enriched recovery from various nitrogen production equipment - HCBBS Forum
21. These hens - HCBBS Forum
22. Regarding the spray system of screw compressors - HCBBS Forum
23. There are four new trends in the development of the global biomass gas industry - HCBBS Forum
24. Is it feasible to use fireproof coating to upgrade an old steel-framed factory building to a fire resistance rating of level 2? - HCBBS Forum
25. Zinc oxide desulfurization adsorbent for hydrogen production plants - HCBBS Forum
26. Design of acid and alkali storage tanks - HCBBS Forum
27. 【Daily Topic】【Civil Engineering Version 20160308】 - HCBBS Forum
28. Environmental Protection Tip of the Day – March 12: Reward for participation, plus 5 more points for answering correctly - HCBBS Forum
29. 3051 - HCBBS Forum
30. Issues related to level differential pressure transmitters - HCBBS Forum
31. Case analysis: Should the following situation be classified as a work-related injury? (7) - HCBBS Forum
32. Heat issue of waste boilers - HCBBS Forum
33. 【Daily Topic】【Electrical Edition 20160307】 - HCBBS Forum
34. Pneumatic test issues - HCBBS Forum
35. The pipe segment table generated by the pipe segment table template created by pdSOFT is empty – what’s going on? - HCBBS Forum
36. Is it necessary to add chemicals to the deaerator of the hydrogen production plant to control the pH value? - HCBBS Forum
37. High-purity hydrogen gas chromatography maintenance - HCBBS Forum
38. Why has the aerobic tank for wastewater become cloudy? - HCBBS Forum
39. 【Daily Question】 Daily Question 2016 03 14 Multiple-choice Question - HCBBS Forum
40. Siemens positioner feedback wiring - HCBBS Forum
41. Give it a try... Feasibility Study Report on the Extraction of Phenols from Medium and Low Temperature Tar through Paid Transfer - HCBBS Forum
42. Control methods for the dry point of the atmospheric and vacuum side streams - HCBBS Forum
43. 【Joint Study*】【Civil Engineering Version 20160308】 - HCBBS Forum
44. Seeking expert advice: how to determine the transmission geometry parameters - HCBBS Forum
45. Sign-in record post from March 12, 2016 - HCBBS Forum
46. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 461 - HCBBS Forum
47. finned tube - HCBBS Forum
48. 【Basic Knowledge of Occupational Health】: Dust - HCBBS Forum
49. Silencer - HCBBS Forum
50. The ash temperature in chamber #2 of the dust collector is 40 degrees lower than that in the other chambers – what is the reason? - HCBBS Forum
51. 8- The feather leaf separator is used in methanol synthesis plants to prevent liquid from entering the vent stream, thereby avoiding impacts on subsequent hydrogen production and LNG co-production processes - HCBBS Forum
52. Excessive appointments - HCBBS Forum
53. Protection rating of the SIS system cabinet - HCBBS Forum
54. CCUS application technologies could represent a huge market for oil extraction in our country in the future - HCBBS Forum
55. The sixth issue of original chemical industry riddles – winners will receive flowers - HCBBS Forum
56. How to calculate pipeline span when there is insulation? - HCBBS Forum
57. One Question per Day on Synthetic Ammonia (Series 42) - HCBBS Forum
58. 【Daily Question】March 6, 2016: +2 Wealth for participation； +3 to 8 wealth for correct answers - HCBBS Forum
59. Fundamentals of Organic Chemistry by Xing Qiyi - HCBBS Forum
60. What are the prospects for coatings? I hope experts can tell me - HCBBS Forum
61. Shandong needle coke - HCBBS Forum
62. Simulation of the dissolution of inorganic substances in ethanol - HCBBS Forum
63. Mechanical seal design method - HCBBS Forum
64. Is it suitable to change career to coal chemical engineering? - HCBBS Forum
65. How to view alarm messages that have been cleared on the Yokogawa DCS? - HCBBS Forum
66. Purpose of providing leakage signal indication holes on the shimming plate - HCBBS Forum
67. What brands are people using for the hydrogen compressors in exhaust gas recovery systems, and how are they performing? - HCBBS Forum
68. Does the ammonia nitrogen content in the aerobic effluent affect COD? - HCBBS Forum
69. Formula for motor power consumption - HCBBS Forum
70. For the three-out-of-two signal in interlocked shutdown, is it necessary to use three different input cards? What is the actual situation? - HCBBS Forum
71. Issues regarding relay wiring and the DO/DI points of DCS cards - HCBBS Forum
72. A confused bid document - HCBBS Forum
73. Fixed walkie-talkie - HCBBS Forum
74. Modular ammonia cooler - HCBBS Forum
75. Interface meter problems encountered in acrylic acid production - HCBBS Forum
76. Limit switch for pneumatic ball valve - HCBBS Forum
77. Regarding the emergency shutdown procedure issue - HCBBS Forum
78. 【Daily Question】March 10, 2016 – Participate to earn +2 wealth； +3 to 8 wealth for correct answers - HCBBS Forum
79. 【Joint Study*】【Civil Engineering Version 20160305】 - HCBBS Forum
80. In the northeast, what material is good for insulating hot oil pump housings? - HCBBS Forum
81. Is the olefin content high in diesel? - HCBBS Forum
82. 【Daily Question No. 130】March 09, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
83. Job hunting - HCBBS Forum
84. What is the difference between hydrogen-resistant steel and ordinary steel? - HCBBS Forum
85. How to remove moisture from activated carbon - HCBBS Forum
86. Can other equipment be installed within the fire dike of liquid ammonia spherical tanks? - HCBBS Forum
87. Which domestic brands are the best for COD detectors and turbidity meters? - HCBBS Forum
88. A few very simple words that can make your English sound more natural (1) - HCBBS Forum
89. What kind of gas filter can selectively absorb CO - HCBBS Forum
90. I have a question regarding the staffing for the tank farm - HCBBS Forum
91. Let’s all talk about what kinds of tests are required for electrical, instrumentation, and control system equipment in chemical plants - HCBBS Forum
92. Why does purified acidic water contain phenols? - HCBBS Forum
93. Do you have any suggestions or ideas regarding the use of the revised Mechanical section? - HCBBS Forum
94. :D:lol:lol:lol - HCBBS Forum
95. One Question per Day on Synthetic Ammonia (Series 3**) - HCBBS Forum
96. 【Petrochemical Events】Voting for the Most Valuable “Information” (Deadline: March 17) - HCBBS Forum
97. Test your knowledge: What should be done if there is a leak in the coal slurry pipeline while it is in operation? - HCBBS Forum
98. Are the damping time and filtering time of an electromagnetic flowmeter the same thing? - HCBBS Forum
99. Precautions for the renovation of external pipeline networks in old factories - HCBBS Forum
100. Transmission of pumps and fans - HCBBS Forum