English — Forum #723 (Page 547/642)

1. Our company wants to deal in paraffin oil. Is paraffin oil considered a hazardous substance? What is its code, and what qualifications are required? - HCBBS Forum
2. Chemical Engineering in Daily Life – Question 55: What do these compounds taste like? - HCBBS Forum
3. Does the power plant’s high-pressure heater not leak? - HCBBS Forum
4. How to manage issues related to contractors’ improper PPE use and construction practices - HCBBS Forum
5. In tower equipment, how can one determine whether it is a pressure vessel in such cases? - HCBBS Forum
6. Gas flow rate - HCBBS Forum
7. 【Daily Question 20150821】 - HCBBS Forum
8. Treatment of cyanide-containing wastewater by the sulfur dioxide air method - HCBBS Forum
9. There are problems with the metal wound gasket - HCBBS Forum
10. What are the Indian standard specifications that must be followed for the use of pressure vessels with hydrocarbon media in petrochemical plants in India? Also... - HCBBS Forum
11. Sealed oil tank - HCBBS Forum
12. The correct installation of thermal resistors can reduce measurement errors - HCBBS Forum
13. Which devices need to be installed in the factory building under what circumstances - HCBBS Forum
14. Atmospheric storage tank vent size - HCBBS Forum
15. 【Daily Question】Question from Issue 20150826 - HCBBS Forum
16. Separation and purification of butyl ethylene glycol ether from pyrrolidine NMP - HCBBS Forum
17. During the production process, how does everyone handle issues that are identified by the central control system? - HCBBS Forum
18. Are there anyone who can create renderings of chemical plant office buildings as well as the overall layout of the entire plant? - HCBBS Forum
19. Supplement and improve the analysis and evaluation of occupational disease hazard factors - HCBBS Forum
20. High-voltage motors and low-voltage motors - HCBBS Forum
21. The fields of youth allow me to sow the seeds of dreams - HCBBS Forum
22. Sulfur clogging of flues - HCBBS Forum
23. Tension of the V-belt - HCBBS Forum
24. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 288 - HCBBS Forum
25. One question per day (the first 20 people to post will receive 2 points as a reward) - HCBBS Forum
26. Sulfuric acid is pumped from the tank truck to the storage tank; which type of pump is suitable for this purpose - HCBBS Forum
27. How to remove a small amount of ammonium chloride from chlorobenzene solution? ~~ - HCBBS Forum
28. Chemical Engineering in Daily Life – Question 58: Is it effective to drink vinegar when drinking too much? - HCBBS Forum
29. Compressor gauge issues - HCBBS Forum
30. Reasons for the high vibration of slw300_315 - HCBBS Forum
31. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 290 [ - HCBBS Forum
32. Questions regarding the calculation of the minimum theoretical plate number using the Fenske equation - HCBBS Forum
33. How to explain the negative B value and mere shrinkage of a single type of coal - HCBBS Forum
34. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 289 - HCBBS Forum
35. Where does the slope of steam pipes come from? - HCBBS Forum
36. Heat recovery air conditioning system - HCBBS Forum
37. Xuyang Coal Chemical Research Institute is recruiting energy-saving and environmental protection engineers - HCBBS Forum
38. Simple production equipment capacity assessment report - HCBBS Forum
39. 【Daily Question】Question from Issue 20150825 - HCBBS Forum
40. Discussion on issues during the commissioning of hydrogen production plants! ! ! ! ! ! - HCBBS Forum
41. 【Daily Question】Chemical Engineering Principles 158: Reynolds Number (August 31) - HCBBS Forum
42. What module should be used for exhaust gas condensation calculations? - HCBBS Forum
43. How is the fire boundary determined for vertical fire-tube boilers? - HCBBS Forum
44. Medium flash point lookup - HCBBS Forum
45. Chemical Engineering in Daily Life – Question 54: What should you do if you have eaten food containing an excessive amount of mustard oil? - HCBBS Forum
46. Can such a newbie survive and make a living out there? - HCBBS Forum
47. Remote diagnosis and maintenance - HCBBS Forum
48. What are the design criteria for low-pressure storage tanks and atmospheric pressure storage tanks? - HCBBS Forum
49. Formulas for calculating the coking rate, coking amount, and catalyst circulation rate of DMTO unit catalysts - HCBBS Forum
50. SNCR denitration manufacturers - HCBBS Forum
51. 【20150830】What is SBA? - HCBBS Forum
52. Discussion on the outlet temperature of the Atlas machine’s nose cone (first week of September) - HCBBS Forum
53. Come in and discuss weld classification together. . . . . . - HCBBS Forum
54. How to improve the quality of oil washing - HCBBS Forum
55. “Does the “Burn Down” principle really exist? - HCBBS Forum
56. Strange issue with the differential pressure dual transmitter – could some expert give some advice? - HCBBS Forum
57. Knowing the vacuum residue extraction temperature, how to convert it to the actual boiling point extraction temperature - HCBBS Forum
58. Air separation technology Quality - HCBBS Forum
59. The exact meaning of Turndown - HCBBS Forum
60. For all the various aspects related to chemistry, if any are missing, you’re responsible for filling them in - HCBBS Forum
61. Problem of pressure release of instrument air at the site due to wind-on valves and wind-off valves - HCBBS Forum
62. 【Studying in the UK】Things to keep in mind regarding clothing, food, accommodation, and transportation! - HCBBS Forum
63. I’m facing a headache; please give me some advice. - HCBBS Forum
64. 【Daily Question】 August 26th Under normal production conditions, when is the quench oil switched? - HCBBS Forum
65. Maintenance issues with flameproof instruments - HCBBS Forum
66. Mass flow meter wiring - HCBBS Forum
67. Internet sales of chemical products, Shanghai – a referral bonus of 500 yuan - HCBBS Forum
68. Will the first-level construction engineer qualification be abolished? - HCBBS Forum
69. Air intake velocity of the reduction furnace - HCBBS Forum
70. What is the concentration ratio? What is the significance of increasing the concentration ratio? - HCBBS Forum
71. Water hammer problems in steam pipelines - HCBBS Forum
72. What do you think of a senior instrumentation engineer taking on the role of warehouse manager? - HCBBS Forum
73. 【Daily Question】August 31: At what temperature should the temperature during large-scale catalyst unloading be controlled? ℃? - HCBBS Forum
74. What is the principle of the speed control valve in pneumatic pipelines? - HCBBS Forum
75. 【Daily Question】 August 20th: Which one is considered an occupational disease in the petrochemical industry? ? ? ? - HCBBS Forum
76. Problems with valve positioners - HCBBS Forum
77. What are the strict requirements for operators in ** Danger ** filling? - HCBBS Forum
78. In project design, seeking help with issues such as the wiring of equipment from third-party manufacturers! ! ! ! - HCBBS Forum
79. Preheating before welding - HCBBS Forum
80. Sell Φ2.8*27M heavy ash calcination furnace at a low price - HCBBS Forum
81. Five requirements for the safe operation of tower cranes - HCBBS Forum
82. 【Daily Question】Chemical Engineering Principles 150: Heaters and Coolants (August 23) - HCBBS Forum
83. 【20150829 Daily Question】On the calculation methods of ratios - HCBBS Forum
84. 【Daily Question】Chemical Engineering Principles 153: Idealized Objects (August 26) - HCBBS Forum
85. Chemical Engineering in Life – Question 51: As a chemical engineer, how can one live a long life? - HCBBS Forum
86. Shared successfully! I’m sharing my experience and insights on getting hired through Haichuan Forum with everyone! - HCBBS Forum
87. Selection of gasket materials for gas pipeline flanges - HCBBS Forum
88. I have a question regarding material measurement: measuring tanks, static weighing, and flow meters - HCBBS Forum
89. July 2015 Outstanding Original Technology Theme Selection Contest (Advanced Evaluation Stage for the Technology Category) - HCBBS Forum
90. Issues in comprehensive energy consumption statistics - HCBBS Forum
91. Please explain some of the control measures for the oxidation process - HCBBS Forum
92. Is it necessary to add support plates at the bends of the U-tube bundle in a U-tube heat exchanger? - HCBBS Forum
93. The on-site vent pipeline for the high-pressure separator is DN80; why is another one needed on site? - HCBBS Forum
94. Accident Handling 30: What are the causes of wear on the one-way air caps in circulating fluidized bed boilers? - HCBBS Forum
95. What items do you check during inspections in your workshop? Just mention a few - HCBBS Forum
96. Condenser in cold storage equipment - HCBBS Forum
97. Boiler level - HCBBS Forum
98. What methods can be used as alternatives for ammonia detection in containers? - HCBBS Forum
99. CNOOC Datong Natural Gas - HCBBS Forum
100. Chemical Engineering in Life – Question 33: How to avoid dying of thirst in the desert? Standard answer already available - HCBBS Forum