English — Forum #723 (Page 35/642)

1. I suddenly thought of a question: what is the difference between DCS and SIS? I hope experts can answer it! - HCBBS Forum
2. In an aromatic compound complex, why does the temperature in the xylene tower need to be around 300 degrees Celsius during distillation? ? ? - HCBBS Forum
3. Can the general layout attached during the feasibility study stage of chemical plant construction be changed in the preliminary design phase? - HCBBS Forum
4. 【Daily Question】December 23, 2016: +2 wealth for participation； +3 to +10 wealth for correct answers - HCBBS Forum
5. For the roof of an anaerobic digester, is it better to use carbon steel with a coating for corrosion protection or stainless steel? - HCBBS Forum
6. Shanghai Guanghua and Shanghai Guanghua Aiermeite - HCBBS Forum
7. Fire and explosion protection design - HCBBS Forum
8. Oh my heavens, Westbrook. . . 40+10+10 Triple Combo - HCBBS Forum
9. It’s said that playing games wears out keyboards and mice, but I feel that browsing forums also takes a lot from them - HCBBS Forum
10. Storage tank head - HCBBS Forum
11. Ask for flowers - HCBBS Forum
12. Safe design of high-temperature asphalt storage tanks - HCBBS Forum
13. Looking at Great Qin from the eastern end of the Black Sea - HCBBS Forum
14. Sign-in record post for December 25, 2016 - HCBBS Forum
15. The impact of the design life of petrochemical plants on the design process - HCBBS Forum
16. Daily Water Treatment Question (12.25) - HCBBS Forum
17. Atmospheric and vacuum electrodesalination – which one is more effective? - HCBBS Forum
18. Test questions - HCBBS Forum
19. There is already a distillation column; as the pressure in this column increases, how do the concentration of the light components at the top of the column and the amount of product collected from there change? - HCBBS Forum
20. Triconex training manual - HCBBS Forum
21. In recognition of Lu C182’s contributions to this version, a reward is hereby given - HCBBS Forum
22. Painting workshop as specified in the Code for Fire Protection Design of Buildings - HCBBS Forum
23. Discussion on producing the (paper) internal magazine of Kaichuan - HCBBS Forum
24. On the 24th attempt, 95 gold eggs were smashed, resulting in a total loss of 580 points~ - HCBBS Forum
25. What are the requirements for materials regarding dimethyl sulfate? - HCBBS Forum
26. Mnemonic for operating the ammonium sulfate section - HCBBS Forum
27. Low-temperature liquid storage tank drawings - HCBBS Forum
28. Cable selection - HCBBS Forum
29. Is it possible to produce nitrogen using pressure swing adsorption under high-pressure conditions? - HCBBS Forum
30. Under what circumstances does a distillation column have only a distillation section? - HCBBS Forum
31. Help needed: knowledge of pressure vessels - HCBBS Forum
32. Safety education at the turn of the year must not be neglected - HCBBS Forum
33. How to claim the participation reward - HCBBS Forum
34. Maintenance Guidelines for Emergency Shower and Eye Wash Devices in Workshops---General Version - HCBBS Forum
35. What is the principle behind the variable impeller adjustment of the three centrifuges? - HCBBS Forum
36. Premier League – Controversial goals from two wingers as Manchester City comes from behind to win 2-1; Arsenal suffers consecutive losses - HCBBS Forum
37. Pump selection - HCBBS Forum
38. The Liaoning team won again, but they can’t be happy - HCBBS Forum
39. Radar level gauge - HCBBS Forum
40. Third Phase of HaiChuan Outstanding Management Members Selection Contest – Prizes will be distributed uniformly after the New Year - HCBBS Forum
41. On the 22nd attempt, 100 gold eggs were smashed, resulting in a loss of 20 points~ - HCBBS Forum
42. I would like to know what the difference is between flange AN and AA - HCBBS Forum
43. Hubei Xīnlán Tiān New Materials Co., Ltd. 【Job opening: Manager for sulfurized bed boilers】 - HCBBS Forum
44. Double Egg Festival is here – how are you planning to spend it? - HCBBS Forum
45. Breaking the golden egg has become too weird - HCBBS Forum
46. Problems with catalytic precoolers - HCBBS Forum
47. Safety and Fire Safety Puzzles (12.19) - HCBBS Forum
48. Central approval for coal-to-oil and gas projects, local approval for coal-to-olefins projects | The State Council issues a list of approved investment projects - HCBBS Forum
49. What’s wrong with the CBA this year? Could the defending champion fail to make it into the top eight by halfway? - HCBBS Forum
50. Conductivity range and reading - HCBBS Forum
51. I want to know the relevant standards for this artificial grounding, and which specification specifies a depth of 2.5 meters. Standards for grounding setup. - HCBBS Forum
52. The filter pipeline is vibrating violently - HCBBS Forum
53. Consultation with graphite heat exchanger manufacturers - HCBBS Forum
54. Reasons for the rapid development of belt conveyors - HCBBS Forum
55. Dichloroethane - HCBBS Forum
56. Gasification Daily Question: 2016-12-18 Fill-in-the-blank question (5 points for participation, 10 points for a correct answer) - HCBBS Forum
57. What is the legal basis stating that hydrogen peroxide falls under Category A? ? Urgent! Urgent! Urgent! ! - HCBBS Forum
58. Are there any reliable manufacturers of composite hoses that you can recommend? - HCBBS Forum
59. The selection of gas turbine flowmeters should take the following aspects into consideration - HCBBS Forum
60. Lecture on Occupational Safety and Health Management System 04 - HCBBS Forum
61. Daily Water Treatment Question (12.27) - HCBBS Forum
62. Who do you remember from the Seven Sages of the Bamboo Grove? - HCBBS Forum
63. What protective measures should be taken during the purging of welded flow meters in high-pressure steam pipelines? - HCBBS Forum
64. 【Equipment Reliability Improvement】HAZOP analysis (i.e., Hazard and Operability Analysis) of the storage tank system to identify potential risks - HCBBS Forum
65. Who figured it out? Please explain - HCBBS Forum
66. Lecture on Occupational Safety and Health Management System 10 (End) - HCBBS Forum
67. The thermocouple temperature rises suddenly and then returns to normal immediately – what could be the cause? - HCBBS Forum
68. Testing standards - HCBBS Forum
69. **Opinions of the State Council on Promoting Reform and Development in the Field of Work Safety - HCBBS Forum
70. Higher ammonium sulfate production? ? - HCBBS Forum
71. The feedstock and reactor effluent are passed through heat exchangers, with the feedstock flowing in the tube side and the reaction effluent flowing in the shell side – why? - HCBBS Forum
72. How is the packing height of a packed tower calculated?! - HCBBS Forum
73. The 72 Strategies of Guiguzi (complete version) is worth studying throughout one’s life; please keep it forever! - HCBBS Forum
74. As if a spring breeze came overnight, thousands of trees are in bloom with pear flowers. - HCBBS Forum
75. Hydrogen leak - HCBBS Forum
76. I would like to ask what issues remain to be resolved regarding hydrochloric acid synthesis furnaces at present - HCBBS Forum
77. Equipment management training - HCBBS Forum
78. Query of registered chemical certificates - HCBBS Forum
79. Corrosion problem of heated air caused by vaporization flash steam - HCBBS Forum
80. Searching for internet terms - HCBBS Forum
81. Requirements for establishing a new temperature and pressure calibration laboratory - HCBBS Forum
82. Daily Security Management Question (12.26) - HCBBS Forum
83. Today’s golden egg feels really underwhelming - HCBBS Forum
84. Reboiler forced circulation pump - HCBBS Forum
85. Valve positioner surging - HCBBS Forum
86. Should the external pressure calculation use a welding joint coefficient of 1 or 0.85? - HCBBS Forum
87. The pipe fitting is used at a pressure of 18 MPa; the outer diameter of the welded joint is 31, with a wall thickness of 4. Is it sufficient? - HCBBS Forum
88. 【Q&A Question 245】December 21, 2016 - HCBBS Forum
89. How to calculate the flow rate of steam discharged directly into the atmosphere in a 1.0 MPa steam pipeline network? - HCBBS Forum
90. Environmental Protection Daily Question (12.24) - HCBBS Forum
91. Regenerator desulfurization line issue - HCBBS Forum
92. HYSYS windows10 - HCBBS Forum
93. 【12-27】Daily Tip for Occupational Health - HCBBS Forum
94. On the issue of high height-to-diameter ratio of catalyst loading in white oil hydrogenation units - HCBBS Forum
95. Registered Firefighter Certificate - HCBBS Forum
96. Fluctuations in the indication of the single-flange level gauge - HCBBS Forum
97. Selection of valves - HCBBS Forum
98. Factors affecting the distribution of catalytic cracking products - HCBBS Forum
99. Please provide a table for checking the relative humidity of air at temperatures above 100°C - HCBBS Forum
100. Reinforced feeding self-protection interlock problem - HCBBS Forum