English — Forum #723 (Page 154/642)

1. What is the current situation in the chemical industry? - HCBBS Forum
2. The vibration level of the smoke extractor is extremely high – do anyone have any solutions? Come in and chat~ - HCBBS Forum
3. True or False Question - HCBBS Forum
4. Calculations for gas-gas heat transfer and gas-liquid heat transfer - HCBBS Forum
5. The pipeline specification is φ219×6, with a medium flow rate of 600 cubic meters per hour; therefore, the flow velocity is - HCBBS Forum
6. Energy consumption issues in coking units - HCBBS Forum
7. Be especially vigilant | Accidents are most likely to occur during these nine time periods - HCBBS Forum
8. 17-4PH, 17-7PH - HCBBS Forum
9. Oxygen-poor process in catalytic cracking - HCBBS Forum
10. How to carry out energy-saving upgrades for circulating water pumps - HCBBS Forum
11. 【Daily Topic】【Production Version 20160829】 - HCBBS Forum
12. Is there a risk of human poisoning when draining liquids at the site of instrument inspection and maintenance in sulfur recovery units? - HCBBS Forum
13. What are the benefits of using a methanol catalyst later on to increase CO2 in the fresh gas? - HCBBS Forum
14. Question 46 in the morning session of the 2014 professional knowledge exam: the conservation laws governing fluid flow - HCBBS Forum
15. Under what circumstances should a pressure gauge be installed in front of a safety valve? - HCBBS Forum
16. Is it necessary to undergo another inspection by a specialized testing agency before using a pressure vessel again after it has been out of use for one year? - HCBBS Forum
17. Difference between centrifugal pump volutes and diffusers - HCBBS Forum
18. Seeking the old standard for gasket specifications - HCBBS Forum
19. Successful first ignition of the space furnace in Sichuan Lutianhua project - HCBBS Forum
20. A material with mechanical properties similar to those of 35CrMo (60K), but with better weldability? - HCBBS Forum
21. Does work belong to mechanical energy? - HCBBS Forum
22. Daily Safety Technology Quiz (2016.9.3) - HCBBS Forum
23. Neck thickness of large-diameter flanges - HCBBS Forum
24. Hydrogenation catalyst sulfidation - HCBBS Forum
25. Safety technology exchange daily question (single choice question) (2016.8.31) - HCBBS Forum
26. How far can blended gasoline and diesel go? Everyone is welcome to discuss! ! ! ! - HCBBS Forum
27. Which of the experts here has used a pen-type pH meter? Do you have any good recommendations? - HCBBS Forum
28. Regarding the issue of high moisture levels in the distillation system! - HCBBS Forum
29. Shanghai Entuo Environmental Technology Co., Ltd. is urgently seeking sales engineers - HCBBS Forum
30. Latest job openings at Qingdao Wanyuan Environmental Technology Co., Ltd - HCBBS Forum
31. Which country/region won the most gold medals at the 2016 Rio Paralympics? - HCBBS Forum
32. What is the process for the examination of pressure vessel design approvers? - HCBBS Forum
33. Gasoline hydrogenation catalyst bed temperature - HCBBS Forum
34. Qualification standards for industrial salt - HCBBS Forum
35. 【Daily Topic】【Electrical Edition 20160827】 - HCBBS Forum
36. HTRI warning messages - HCBBS Forum
37. Why does a coking radiation pump have two injection points for white oil and seal oil, and what is the function of each? - HCBBS Forum
38. Problems with the internal filters in low-temperature methanol washing - HCBBS Forum
39. 【Daily Topic】【HVAC Version 20160825】 - HCBBS Forum
40. 【Daily Question】September 3, 2016: Participation +2 Wealth； +3 to +10 wealth for correct answers - HCBBS Forum
41. Safety education - HCBBS Forum
42. Understanding flash point, ignition point, and autoignition point - HCBBS Forum
43. Safety education should start from a young age (Insights from foreign primary school safety education for China) - HCBBS Forum
44. Questions about determining the pump installation height; also questions related to elbows and the equivalent diameter of flow meters - HCBBS Forum
45. 【Daily Topic】【Electrical Edition 20160903】 - HCBBS Forum
46. Changes in personnel for design license renewal of pressure vessel design units - HCBBS Forum
47. Very detailed knowledge on safety standardization - HCBBS Forum
48. First Phase of Haichuan Outstanding Management Members Evaluation Event -- Award Post - HCBBS Forum
49. Are there any inspiring stories from the chemical industry around us? - HCBBS Forum
50. Does adding or removing water at temperatures within the normal range improve or reduce the efficiency of the unit? - HCBBS Forum
51. Power plant thermal cycle - HCBBS Forum
52. 【Daily Topic】【Civil Engineering Version 20160905】 - HCBBS Forum
53. Wanhua Chemical is recruiting an Engineering Plastics Sales Manager (location: Pudong, Shanghai) - HCBBS Forum
54. Can 304 stainless steel be used to heat concentrated nitric acid? - HCBBS Forum
55. Discussion on the issue of pump peak exhaust in the 2014 edition of Petroleum Storage Tank Design Code - HCBBS Forum
56. 【New Energy Applications】World’s largest photovoltaic rooftop - HCBBS Forum
57. Information on rhenium refining - HCBBS Forum
58. 【Little Knowledge on Occupational Health】01 Occupational Hazardous Factors - HCBBS Forum
59. How much do you know about the working methods of EHS experts? - HCBBS Forum
60. Is it okay to use buried gas pipes in the substation? - HCBBS Forum
61. Can the heat-sealed water, used as instrument flushing water, be slightly opened to prevent freezing in winter? - HCBBS Forum
62. Use of polymerization inhibitors - HCBBS Forum
63. This time it’s really tragic - HCBBS Forum
64. Help: What is the internal structure of the high-pressure section in a hydrorefining unit, and what material is it made of? - HCBBS Forum
65. On the issue of recycling LPG containing DME in the catalytic cracking riser - HCBBS Forum
66. What is being removed through denitration in the ion-exchange membrane chlor-alkali process? - HCBBS Forum
67. 【Weekly Topic】【Quality Version 20160901】 - HCBBS Forum
68. Shirking responsibility is truly detestable - HCBBS Forum
69. Training session on preparing the special sections on safety design and occupational health! ! ! - HCBBS Forum
70. 2010 Case 6 PM - HCBBS Forum
71. Issues regarding the shutdown and standby period of Beihua Ji or Asahi Kasei electrolyzers - HCBBS Forum
72. Drowsy - HCBBS Forum
73. Calculation problems - HCBBS Forum
74. Reflections | My uncle’s factory finally closed down - HCBBS Forum
75. I urgently need the UG compressed file; could some seniors send it to me? Thank you - HCBBS Forum
76. Compressed air system - HCBBS Forum
77. Selection of bolts for container support installation - HCBBS Forum
78. Sulfur issues in sulfur recovery exhaust gases - HCBBS Forum
79. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； September 2nd - HCBBS Forum
80. Can PP material withstand 260# solvent oil? - HCBBS Forum
81. The vertical vibration of the non-coupling end of the centrifugal pump seriously exceeds the standard - HCBBS Forum
82. The question about groove length in the afternoon of 2016 - HCBBS Forum
83. Adjust the pH to 2 with phosphoric acid, and after evaporation and concentration, the pH is 0.5–1. . . - HCBBS Forum
84. Discussion on issues related to the setup of ABB positioners - HCBBS Forum
85. Seeking guidance from seniors - HCBBS Forum
86. Waste heat boiler standards - HCBBS Forum
87. Extraction problem - HCBBS Forum
88. I would like to ask how to cancel the notification for the installation of special equipment? - HCBBS Forum
89. Regarding the issue of built-in compensation in thermocouples - HCBBS Forum
90. Mid-Autumn Lantern Riddles 05 - HCBBS Forum
91. Main cooling liquid level gauge issue - HCBBS Forum
92. Sodium metabisulfite turns yellow - HCBBS Forum
93. Calculation of high-vacuum heat exchangers - HCBBS Forum
94. If the experts can help me resolve my confusion, I’m willing to top up their accounts. I’d like to ask for advice regarding a leak in the heating coil of the liquid sulfur tank... - HCBBS Forum
95. What is killing chemical traders? - HCBBS Forum
96. Sign-in record post from September 5, 2016 - HCBBS Forum
97. Sign-in record post from August 27, 2016 - HCBBS Forum
98. Technology for the esterification and hydrogenation of adipic acid to produce 1,6-hexanediol - HCBBS Forum
99. News from the air separation industry, 20160905: Progress on the industrial gases facility project at Guangxi Hua Yi Energy Chemical Co., Ltd - HCBBS Forum
100. Environmental Protection Daily Post 9.06: Reward for participation, plus 5 more points for answering 3 questions correctly - HCBBS Forum