English — Forum #723 (Page 534/642)

1. What would you do if you saw someone littering or engaging in other behaviors that pollute the environment? - HCBBS Forum
2. Regarding the methanol oxidizer interlock issue - HCBBS Forum
3. Witnessed a car accident, minor injuries - HCBBS Forum
4. September 8: Boiler Foundation Questions 25 – Term Explanations: (A certain score will be given to the top 30) - HCBBS Forum
5. What is the difference between working in chemical processes for desulfurization and denitrification, and working in environmental engineering for these same purposes? - HCBBS Forum
6. Discussion on centrifugal compression machine types - HCBBS Forum
7. One Question per Day, September 9, 2015 - HCBBS Forum
8. Matching issues for bolts, nuts, and spherical washers in high-temperature vessels - HCBBS Forum
9. Is 13Cr+STL for the valve seat, and 13Cr+STL for the valve disc/sphere acceptable? Does the internal component have to be a casting? - HCBBS Forum
10. Yantai Guobang Chemical Machinery Technology Co., Ltd.--Chemical Engineering Design Engineer - HCBBS Forum
11. What should be considered when purchasing standard coal for coal quality analysis? - HCBBS Forum
12. Can aqua regia used for metallographic analysis be prepared with 1N hydrochloric acid? - HCBBS Forum
13. What is the typical ammonia content in the transformed water gas? - HCBBS Forum
14. Why is urea slightly yellow? - HCBBS Forum
15. It’s my birthday today; sharing it with friends at the sea - HCBBS Forum
16. Regarding the liquid chlorine filling system - HCBBS Forum
17. What is the detonation limit of diesel? - HCBBS Forum
18. 【College Activities】012+A Day at College---Song of Youth +*anpangpang - HCBBS Forum
19. What is the difference between external pressure vessels and internal pressure vessels? - HCBBS Forum
20. I’m very interested in PDMS and proficient in using it; I’d like to pursue a career as a database administrator~~~ - HCBBS Forum
21. 【Daily Question】Chemical Engineering Principles 161: Resistance Coefficient Method (September 3) - HCBBS Forum
22. I’m seeking help from experts in the chemical industry – could you please share the yields of your atmospheric and vacuum distillation units? - HCBBS Forum
23. How to simulate anchor piles in buried pipelines - HCBBS Forum
24. The issue of water gas composition - HCBBS Forum
25. What are the categories of heat exchange equipment based on their purpose? - HCBBS Forum
26. Seek operation documentation for air separation liquefaction units~~ - HCBBS Forum
27. Problems with mechanical seals in ordinary centrifugal pumps - HCBBS Forum
28. How to determine whether a bearing is subjected to radial force or axial force, and how to distinguish between radial force and axial force - HCBBS Forum
29. What are the two most common faults during the running-in period of grab-type bridge cranes? - HCBBS Forum
30. If the device is out of use for an extended period of time, with nitrogen filled inside at a pressure of over 1 kilogram, is it still necessary to submit it for inspection? - HCBBS Forum
31. 【Daily Question】Question from Issue 20150904 - HCBBS Forum
32. Can’t understand the English, please translate it - HCBBS Forum
33. 【Daily Question】Chemical Engineering Principles 162: Sedimentation Operations (September 4) - HCBBS Forum
34. Is it necessary to vent air when flushing a liquid-phase dryer? - HCBBS Forum
35. Methanol Weekly Topic: Is it feasible to increase production by raising the compressor circulation rate? 2015.09.13--09.19 - HCBBS Forum
36. Can a fluorinated-lined ball valve withstand negative pressure? And what is the maximum negative pressure it can handle in MPa???? - HCBBS Forum
37. Please recommend some reliable online oxygen content analyzers that can be installed in front of electrostatic tar collectors - HCBBS Forum
38. In the calcium carbide-acetylene process for producing PVC, given the monomer production volume, how can the hydrogen chloride flow rate be calculated? How to solve this? - HCBBS Forum
39. Imagine: what would a water company be like without a convenience store? - HCBBS Forum
40. Analysis of propylene and polypropylene - HCBBS Forum
41. Issues related to the selection of pressure gauges - HCBBS Forum
42. For an industrial steam boiler with a steam production capacity of 35 tons per hour, what desulfurization process is suitable? - HCBBS Forum
43. Manufacturers of centrifuges for sludge dewatering - HCBBS Forum
44. Who knows anything about air knives? - HCBBS Forum
45. What skills are needed to purchase an electric double-girder crane - HCBBS Forum
46. Vibration of new hydrogen machine - HCBBS Forum
47. Finding a use for cracked tail oil - HCBBS Forum
48. Post on the technical team’s salary payment thread from August 2015 - HCBBS Forum
49. 【Daily Question】Question from Issue 20150906 - HCBBS Forum
50. What are the advantages and disadvantages of various welding methods for bridge cranes? - HCBBS Forum
51. Determination of water vapor content in flue gas or air - HCBBS Forum
52. 【College Activities】011+“Love in Those Days”+leileienn - HCBBS Forum
53. What to do if you find dirt in your food? - HCBBS Forum
54. 【Daily Question】Question from Issue 20150902 - HCBBS Forum
55. Methanol Weekly Topic: What factors are related to the steam consumption in methanol distillation? 2015.09.06--09.13 - HCBBS Forum
56. Calculation of air flow rate - HCBBS Forum
57. Analyze the differences in operating requirements for truck cranes between domestic and international markets - HCBBS Forum
58. What is the function of each part of a tower equipment? What are the basic requirements? - HCBBS Forum
59. Selection and Preparation of Basic Catalysts for Biodiesel Production - HCBBS Forum
60. Spiritual Soup - HCBBS Forum
61. Looking for recommendations for small ball rolling machines - HCBBS Forum
62. What are the key points to pay attention to when operating a truck crane? - HCBBS Forum
63. Who has the relevant drawings for vertical forced-air waste heat boilers? - HCBBS Forum
64. Life span of mechanical seals and bearings - HCBBS Forum
65. Preparing for the Registered Chemical Engineer exam - HCBBS Forum
66. How do people understand crack formation caused by excessive local strain or ductile shear as failure modes of pressure vessels? - HCBBS Forum
67. The sulfur dioxide levels in the coking plant’s waste gases are too high; I earnestly ask for experts’ guidance - HCBBS Forum
68. Is it necessary to pay special attention when selecting instruments when the medium contains oxygen? - HCBBS Forum
69. What material is generally used for the packing of the coal lock-down valve in pressurized gasification of pulverized coal? - HCBBS Forum
70. In Aspen7.3, when I click on Property Method Selection Assistant in the Tool toolbar, nothing happens; there’s no response... - HCBBS Forum
71. Treatment of sulfurized oil in hydrocracking units - HCBBS Forum
72. Without a wife, no children, and my family member suffering from uremia – what do I have to strive for? - HCBBS Forum
73. Sign-in record post from September 12, 2015 - HCBBS Forum
74. What are the advantages of an open-loop circulating cooling water system? - HCBBS Forum
75. Seeking used blowers with an outlet pressure of 5 kPa and an air volume of 27,000 Nm3 - HCBBS Forum
76. Schneider Unity 10.0 Pro - HCBBS Forum
77. Accident Handling 30: What consequences can wear and tear of the one-way air cap in a circulating fluidized bed boiler cause? - HCBBS Forum
78. Catalyst temperature - HCBBS Forum
79. Some areas of confusion regarding the NFPA 85 standard - HCBBS Forum
80. The festive atmosphere is strong; fluctuations in the PVC market are limited - HCBBS Forum
81. Issues with the pipe cap of the pressure transmitter’s pressure tap drain valve? - HCBBS Forum
82. The impact of pressure during natural gas use - HCBBS Forum
83. Issues with container flange verification using SW6-2011 - HCBBS Forum
84. How to remove nickel ions from a solution? - HCBBS Forum
85. Discussion on installing a regulating valve on a steam turbine! - HCBBS Forum
86. Regarding taking the exams for fire engineers and safety engineers. Who can recommend a sample of a work certificate? - HCBBS Forum
87. The purpose of injecting aromatic solvents in the propane dehydrogenation process - HCBBS Forum
88. Accident Handling 39: What are the causes of damage to the economizer in a circulating fluidized bed boiler? - HCBBS Forum
89. What are the design temperature and operating temperature of the crude benzene storage tank? The design pressure and operating pressure of the tar storage tank are respectively... - HCBBS Forum
90. On the flow capacity of steam pressure reduction control valves - HCBBS Forum
91. Do Shell furnaces and Texaco furnaces require external insulation? - HCBBS Forum
92. 【Daily Question】 September 4: The amount of slurry returning to the tower increases – what happens to the liquid level at the bottom of the distillation tower? ? ? ? - HCBBS Forum
93. 【Daily Question No. 3】September 02, 2015: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
94. What to do if sedimentation is slow in the aerobic tank? - HCBBS Forum
95. Please give me some guidance, seniors - HCBBS Forum
96. API gravity of oil products - HCBBS Forum
97. Touring Award 2015.9 - HCBBS Forum
98. Should the emergency supplies list include all fire-fighting equipment on site? - HCBBS Forum
99. Vaporizer slag port pressure - HCBBS Forum
100. Regarding the TOC control criteria for crude salt - HCBBS Forum