English — Forum #723 (Page 492/642)

1. Talk about your shift work experience - HCBBS Forum
2. 【Daily Question】Question from Issue 20151009 - HCBBS Forum
3. Hydrogen feed pump - HCBBS Forum
4. Operate report template - HCBBS Forum
5. What are the two measures for setting speed limits on truck cranes? - HCBBS Forum
6. COD of the biochemical-treated printing and dyeing wastewater is 300, with a colority of 200 times - HCBBS Forum
7. It is said that Britons are rigid while Chinese people are flexible - HCBBS Forum
8. Why are the databases different for the same version of Aspen on different computers? - HCBBS Forum
9. Why is the flow rate of water from the MBR not constant? - HCBBS Forum
10. 【Daily Question】Chemical Engineering Principles 199: Combined Moisture (October 11) - HCBBS Forum
11. What preparations are needed before laying the tank bottom plate? - HCBBS Forum
12. Vibration issues in the boiler feed water pump pipeline - HCBBS Forum
13. Flow rate detection after liquid ammonia vaporization - HCBBS Forum
14. Source of hydrogen for synthetic ammonia production - HCBBS Forum
15. Quick search for HG/T20615 flanges - HCBBS Forum
16. It’s over; time no longer generates money - HCBBS Forum
17. I would like to ask about the options available for incinerators for hazardous chemical waste at present - HCBBS Forum
18. Discuss what effects increasing the secondary air volume will have on the combustion in a circulating fluidized bed boiler? - HCBBS Forum
19. Operation team’s salary for September is being paid out! - HCBBS Forum
20. Thoughts on the location of thermocouples in the low reaction temperature interlock of catalytic cracking units - HCBBS Forum
21. Energy-saving services for water pump systems - HCBBS Forum
22. 【Safety and Environmental Protection Section】September Active Members Rewards – Winners please reply to claim their rewards - HCBBS Forum
23. Issues with the 485 communication of the mass flow meter - HCBBS Forum
24. Question 61 on the foundation of Furnace 10/14: (A certain score is given to the top 40) - HCBBS Forum
25. Methanol: Weekly topic – What to do if the company demands a reduction in consumption? 2015.10.11--10.17 - HCBBS Forum
26. How to determine if the valve core of a gate valve has fallen off - HCBBS Forum
27. One post per day - HCBBS Forum
28. Hydrogen drainage - HCBBS Forum
29. September 2015 Selection Contest for Outstanding Original Technical Themes (Recommendation Phase) - HCBBS Forum
30. Can carbon steel foot bolts be used for stainless steel tower vessels? - HCBBS Forum
31. struggle with indecision - HCBBS Forum
32. Briefly describe the principle and process of producing potassium sulfate from phosphogypsum. - HCBBS Forum
33. For large atmospheric-pressure storage tanks for which the required discharge volumes for inlet and outlet are known, how is the size of the discharge ports determined? ? ? - HCBBS Forum
34. Probe for sulfur warehouse - HCBBS Forum
35. 【Daily Question】10.9 Back +2； To +3 - HCBBS Forum
36. Who should be approached for the analysis of the factory’s reciprocating compressor piping system, or by the design institute? - HCBBS Forum
37. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for participation； Question 187 - HCBBS Forum
38. What causes the excessive H2 level in CO2 during purification? - HCBBS Forum
39. 【Daily Question】10.15 True or False: The pH of quench water (+20 rewards) - HCBBS Forum
40. There are many analysis booths on site; I’m not sure about the principle behind them - HCBBS Forum
41. Which are the manufacturers of compressor air valves? - HCBBS Forum
42. What is “white soil”? - HCBBS Forum
43. What does CE mean on imported instruments? Is it explosion-proof? - HCBBS Forum
44. 【Daily Question】Wastewater Knowledge - 10-12 (2 points for an answer, 4 points for a correct answer) - HCBBS Forum
45. 【Daily Question】October 23: The lower the aniline point of a petroleum product, what is present in larger amounts in that product? - HCBBS Forum
46. 【College Activities】043+Watching a Movie+Fish in the Desert - HCBBS Forum
47. 2015 Pressure Vessel Design Approver Examination Schedule - HCBBS Forum
48. The driver’s conscience - HCBBS Forum
49. NB/T47020 Pressure Vessel Flanges Quick Lookup - HCBBS Forum
50. Briefly describe the approaches to clean production in modern chemical industry - HCBBS Forum
51. What are the different types of water distribution systems for cooling towers? - HCBBS Forum
52. I majored in process control; I have been working on equipment design in Nanjing for over a year now, and I’m looking for a new job - HCBBS Forum
53. One question per day - HCBBS Forum
54. What are exactly the three elements that constitute a ‘clean state’ in production site management? - HCBBS Forum
55. Who has a question bank for sulfur recovery skill assessment? - HCBBS Forum
56. Ball collection operation, pressure increases - HCBBS Forum
57. Regarding the corrosion-induced leakage that occurred in the 316L reboiler within a short period of time - HCBBS Forum
58. Valve Industry Report Analysis - HCBBS Forum
59. In the interpretation of the standard for \"Steel Welded Atmospheric Pressure Vessels\", at position P160, it refers to the rectangular shape with combined vertical and horizontal reinforcement (Type E)… - HCBBS Forum
60. Person in charge of the quality control system at special equipment manufacturing units - HCBBS Forum
61. Why can brass impellers withstand cavitation? - HCBBS Forum
62. \"Optimization of Chemical Processes (2nd Edition) – by Thomas F. Edgar, USA – 2006\". I have no choice but to share it again in order to earn points - HCBBS Forum
63. Employee behaviors that you dislike - HCBBS Forum
64. Why is 1.0 MPa steam used for the shaft seal of the reformation unit’s recirculation compressor? - HCBBS Forum
65. 【Haichuan Irrigation Co., Ltd. Tea House】The Untamed - HCBBS Forum
66. [Forward] Reasons for the wealth gap between the north and south - HCBBS Forum
67. State of the suction and discharge valves when a reciprocating compressor is shut down - HCBBS Forum
68. 【Daily Question No. 3】October 14, 2015: +2 wealth for participation, +3 additional wealth for a correct answer - HCBBS Forum
69. The issue of variable diameter at the inlet and outlet of centrifugal pumps - HCBBS Forum
70. On the qualitative identification of formaldehyde and formaldehyde solutions - HCBBS Forum
71. 【Daily Question】Question from Issue 20151013 - HCBBS Forum
72. 【Daily Question】Chemical Engineering Principles 202: Adiabatic Saturation Temperature (October 14) - HCBBS Forum
73. “Adventure with Bell”: Exploring China’s weird foods - HCBBS Forum
74. How much can an instrument engineer earn in Shanghai after five years of experience? - HCBBS Forum
75. Investment in PSA for 100,000 tons of coal-based hydrogen production - HCBBS Forum
76. Are the male rotors of twin-screw compressors all right-handed? - HCBBS Forum
77. What are the characteristics of chemical production? - HCBBS Forum
78. 【Daily Question】10.13 Reply +2； Correct +3 - HCBBS Forum
79. What are the requirements for the concentration of potassium K ions in the chlor-alkali process? - HCBBS Forum
80. Tengzhou in Shandong carries out thorough efforts in water and air pollution control to promote continuous improvement in environmental quality - HCBBS Forum
81. Flange standard issues - HCBBS Forum
82. 【Daily Question】October 30: To prevent coking particles and lumps at the bottom of the distillation tower from entering the slurry pump, what should be installed? - HCBBS Forum
83. GB/T25198 Quick Search for Pressure Vessel Heads - HCBBS Forum
84. [Alkylation] Profit statistics for alkylation units (20150925-1008) - HCBBS Forum
85. Xinjiang’s coal-to-gas transmission pipeline approved by the National Development and Reform Commission - HCBBS Forum
86. Explain the working principle of using a lightning rod on an FC transmitter? - HCBBS Forum
87. Seeking guidance on the manual, detailed calculation process for air-cooled heat exchangers (without using computer software) - HCBBS Forum
88. Is it still possible to use a safety assessment specialist on a subcontracting basis? - HCBBS Forum
89. Does economic development have to come at the cost of environmental protection? - HCBBS Forum
90. 【Daily Question】Question 15: Test question from issue 20151009 (Reply +2)； For the other +3) - HCBBS Forum
91. Does the thickness of the calcium fluoride window in an infrared chromatograph affect measurement accuracy? - HCBBS Forum
92. What are the basic factors that affect the efficiency of aerobic and anaerobic treatment? - HCBBS Forum
93. What consequences will occur if an orifice plate is installed on a pipe in the wrong orientation? - HCBBS Forum
94. Operation of the UOP chlorine adsorption process and the caustic scrubber process - HCBBS Forum
95. Everyone, regarding the pipe openings shown in the attached drawings, it is possible to tell from their appearance whether they were made by gas cutting or by a angle grinder... - HCBBS Forum
96. General Procedure for Non-Destructive Testing - HCBBS Forum
97. Special cases of sewage air stripping - HCBBS Forum
98. How is the water mass in saturated water vapor calculated? - HCBBS Forum
99. Analysis of the given that structure in sentences - HCBBS Forum
100. How can one know what materials A105, A350 Gr.LF2, and the like in ASME represent without using Google? - HCBBS Forum