English — Forum #723 (Page 383/642)

1. 【Daily Question No. 65】January 13, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
2. Application Survey of CAESAR II STRUCTURE - HCBBS Forum
3. Negative pressure pipeline design - HCBBS Forum
4. Control room grounding selection - HCBBS Forum
5. Well-known filter manufacturers at home and abroad - HCBBS Forum
6. 【Daily Question】Chemical Engineering Principles 298: Dissolved Oxygen in Water Supply (January 18) - HCBBS Forum
7. The Knights failed to live up to expectations, losing repeatedly to the two powerhouse teams in the West - HCBBS Forum
8. Difference in materials - HCBBS Forum
9. Why is there no Paragon module when installing PDMS 12.0? - HCBBS Forum
10. Boiling point calculation and distillation - HCBBS Forum
11. Sulfur filtration issue - HCBBS Forum
12. Does a high pH in copper-containing wastewater lead to a decrease in copper removal efficiency? - HCBBS Forum
13. On the structural principle and operating process of closed-loop condensate recovers - HCBBS Forum
14. What is the difference between SIF and SIS concepts in LOPA? - HCBBS Forum
15. Heating for equipment and instrumentation - HCBBS Forum
16. Determination of the maximum outlet temperature of the vacuum furnace - HCBBS Forum
17. Heat Exchanger Design Handbook-2nd version-Kuppan - HCBBS Forum
18. 20160112 One question per day - HCBBS Forum
19. What type of level gauge should be installed in ethanol solution storage tanks? Please provide recommendations - HCBBS Forum
20. Many petrohumans were moved to tears - HCBBS Forum
21. Could you give a brief explanation of the process flow for producing firewood from medium-temperature coal tar? Thank you - HCBBS Forum
22. What is the purpose of solving for heat recovery in DN40 pipes connecting pipeline equipment? ? ? - HCBBS Forum
23. Electronic thermocouple cold junction temperature compensation method - HCBBS Forum
24. It keeps falling; it’s heading towards level two now – aiming for level one! - HCBBS Forum
25. Questions about reverse osmosis high-pressure pumps - HCBBS Forum
26. Is there any kind person who can give me some wealth points? - HCBBS Forum
27. Which are the manufacturers of ultrasonic calorimeters? - HCBBS Forum
28. If a gaseous stream contains 38% ammonia and 32% hydrogen sulfide, at a flow rate of 500 Nm3/h, with 90% of the hydrogen sulfide in that acidic gas being removed, 500 N... - HCBBS Forum
29. Which website is good for project information? - HCBBS Forum
30. How to optimize the preheating of the slurry pump? - HCBBS Forum
31. 【Daily Topic】【Civil Engineering Version 20160118】 - HCBBS Forum
32. What are the reasons why the RO system for wastewater treatment keeps stopping on its own? - HCBBS Forum
33. The future of energy and methanol - HCBBS Forum
34. Questions regarding the maintenance of shielded pumps - HCBBS Forum
35. What are the factors that cause voltage deviations in ion-exchange membrane electrolyzers? - HCBBS Forum
36. Haichuan’s “Thanksgiving Season” – The Three Mentors Who Guided Me When I Began Working Here【Petroleum Area 017】 - HCBBS Forum
37. Activated sludge foam problem - HCBBS Forum
38. Increase in current of axial flow pump - HCBBS Forum
39. The English proficiency of self-controlled people - HCBBS Forum
40. What is a boiler dissimilar steel joint? - HCBBS Forum
41. Process for changing a registered pressure vessel to an atmospheric pressure vessel - HCBBS Forum
42. Anti-corrosion requirements for high-temperature heat exchangers - HCBBS Forum
43. Urgent! ! How to reset the pipelines on the pipe gallery! - HCBBS Forum
44. What are the reasons for excessive dust levels in gas boilers? How should it be adjusted in terms of operation? - HCBBS Forum
45. Total pressure of propane and a little nitrogen - HCBBS Forum
46. 【Petrochemical Zone】High reward offered for the 20th artwork - HCBBS Forum
47. Regarding the outlet temperature of the cooling water. - HCBBS Forum
48. What is the typical floor height of multi-story steel structure frameworks? - HCBBS Forum
49. I still need three used Emerson mass flow meters; they cost 1,000 each. Can anyone get them for me? - HCBBS Forum
50. Explore the causes of unsafe behaviors and control measures - HCBBS Forum
51. Is gas produced during the anaerobic hydrolysis and acidification stage? - HCBBS Forum
52. 【Daily Question】1.14 Determine the purpose of daily water quality management in central air conditioning systems (3 points for a reply; +3 to 8 points if the answer is correct) - HCBBS Forum
53. Hope to add a field for registered fire engineers - HCBBS Forum
54. Compressor – intermediate body vent - HCBBS Forum
55. How to choose sealing materials - HCBBS Forum
56. Crack in the body of the acid return pipe - HCBBS Forum
57. Vertical centrifugal pump - HCBBS Forum
58. Catalyst issues in hydrogen production equipment - HCBBS Forum
59. Catalytic hydrogenation of char - HCBBS Forum
60. When are the certificates for senior professional titles in the chemical industry in Shanghai issued? - HCBBS Forum
61. The current in the liquefied gas pump motor has increased - HCBBS Forum
62. What is the relationship between catalyst bed temperature and space velocity? - HCBBS Forum
63. Is it snowing where you are? - HCBBS Forum
64. Thermal stability test - HCBBS Forum
65. Does exploring every sea and river require the sharpest mind? - HCBBS Forum
66. Methanol: Weekly Topic – The foul odor of pure methanol; what is this substance?... - HCBBS Forum
67. Help needed - HCBBS Forum
68. Seeking advice on how to fill grease - HCBBS Forum
69. New requirements have been set for the exhaust temperature standards of hydrogen-rich reciprocating compressors - HCBBS Forum
70. 【Daily Question】1.21 Sacrificial anode protection method (3 wealth points for a reply + additional 3–8 wealth points if the answer is correct) - HCBBS Forum
71. Regarding the cleaning operations of internal floating roof tanks - HCBBS Forum
72. Corner weld between heat exchange tube and tube sheet - HCBBS Forum
73. NACE hydrogen, oxygen, sodium hydroxide environmental material selection curve - HCBBS Forum
74. Feel free to leave comments – Key Events in Methanol in 2015 - HCBBS Forum
75. Alumina silo - HCBBS Forum
76. How to achieve 5mg/Nm3 of sulfuric acid mist? - HCBBS Forum
77. Recommendations for oxygen purity analyzers - HCBBS Forum
78. Compressed air metering issue - HCBBS Forum
79. Changchun China Resources Liquefied Natural Gas Co., Ltd. – Hiring an Engineering Supervisor or Manager for Electrical and Instrumentation Affairs - HCBBS Forum
80. Hesitant about changing careers - HCBBS Forum
81. Normal and Reduced Pressure Operation Procedures (Commissioning, Purging, and Pressure Testing Procedures) - HCBBS Forum
82. What causes the overcurrent in the centrifugal pump of the device? Please offer some guidance from those who are more experienced - HCBBS Forum
83. Under what circumstances is variable frequency control needed? - HCBBS Forum
84. Differences between single-orifice plate flowmeters and multi-orifice plate flowmeters - HCBBS Forum
85. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 420 - HCBBS Forum
86. The MTO unit is set to begin operation - HCBBS Forum
87. Haichuan’s “Season of Gratitude” – My Story with the Class Leader【Anhuan District 002】 - HCBBS Forum
88. Desoldering fluid and its recycling solutions - HCBBS Forum
89. Does anyone know what the overall length is for a 1500lb gate valve with DN20? - HCBBS Forum
90. MTO regenerator CO and CO2 generation issue? - HCBBS Forum
91. How to determine whether a transmitter is good or bad - HCBBS Forum
92. Does waste acid emit smoke and gas during nitration production? - HCBBS Forum
93. What is the issue with oil leakage from the mechanical seal overflow port of the newly installed polymerization reactor, along with the presence of gaseous propylene? - HCBBS Forum
94. 【Alkylation】Alkylated gasoline - HCBBS Forum
95. I have a simple but question that has puzzled me for a long time - HCBBS Forum
96. 【Daily Question】1.14 Short-answer question: The impact of heavier crude oil properties on operations - HCBBS Forum
97. Does anyone know the standards for stainless steel flanges? - HCBBS Forum
98. You beat me - HCBBS Forum
99. How Ruchi furnaces reduce methane content in gases - HCBBS Forum
100. HART menu of ABB electromagnetic flowmeters - HCBBS Forum