English — Forum #723 (Page 561/642)

1. Questions regarding the liquid sulfur tank cover plate - HCBBS Forum
2. Question: Is a safety license required to use **chemicals for producing non-hazardous products**? - HCBBS Forum
3. 【Daily Question】August 10: What happens to the oxygen content in flue gas when carbon buildup occurs in catalysts? - HCBBS Forum
4. How to use Aspen to simulate the solubility of organic compounds in water - HCBBS Forum
5. Chemical Engineering in Daily Life – Question 24: When should monosodium glutamate be added when cooking? Standard answer already available - HCBBS Forum
6. How to deal with air coming from the floor drain - HCBBS Forum
7. How to calculate the oxygen-coal ratio - HCBBS Forum
8. I would like to ask the experts: Is the liquid level indicator on site of the gasoline hydrocracking fractionator showing abnormal readings? - HCBBS Forum
9. Applications for safety assessment engineers can be submitted today – let’s all do our best! ! ! - HCBBS Forum
10. What is the typical fluctuation in bed temperature for each wax oil hydrogenation unit? - HCBBS Forum
11. Are there any specifications regarding the size of valves in process flow diagrams? - HCBBS Forum
12. φ108×76×76, is there such a tee? - HCBBS Forum
13. Calculation of the relationship between blower air delivery volume and external temperature - HCBBS Forum
14. The chlorine content in crude benzene is severely above the limit - HCBBS Forum
15. Help: Does anyone know a method for detecting hydrogen sulfide and ammonia in water treated by stripping? - HCBBS Forum
16. 【Daily Question】Chemical Engineering Principles 141: Stagnant Flow (August 14) - HCBBS Forum
17. Which teacher can help me calculate the area required for the heat exchanger? - HCBBS Forum
18. Comparison of three major brand screw compressors - HCBBS Forum
19. What is a low-temperature stress relief condition? - HCBBS Forum
20. Technical exchange post - HCBBS Forum
21. Automatic pipeline material statistics program - HCBBS Forum
22. Process diagram for transporting corrosive materials using compressed gas - HCBBS Forum
23. Discussion on the selection of air separation steam turbines - HCBBS Forum
24. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 282 - HCBBS Forum
25. Can superelastic materials be crushed? - HCBBS Forum
26. Are there air filter cartridges that need to be cleaned before being used again after replacement? - HCBBS Forum
27. How are fully welded ball valves classified? - HCBBS Forum
28. Effects of partial load operation on Texaco gasifiers - HCBBS Forum
29. The rod of the guided wave radar level gauge is too long; can the excess part be cut off? Urgent - HCBBS Forum
30. What do 24V and 5V mean on the power supply module in a DCS? - HCBBS Forum
31. What skills should process engineers possess and what areas of knowledge should they be familiar with? - HCBBS Forum
32. What is the purpose of backwashing? What is the backwash intensity of a filter? - HCBBS Forum
33. Design of structured packing towers - HCBBS Forum
34. Are there any limitations regarding magnetic particle testing of takeover fillet welds? - HCBBS Forum
35. The flow rate of the oxygen pipeline in the gasifier fluctuates significantly - HCBBS Forum
36. Responsibilities of the parties to the environmental impact assessment report contract - HCBBS Forum
37. Questions regarding the \"Self-Control Installation Manual\" HG/T21581-2012 - HCBBS Forum
38. 【Daily Question】August 13: Inspection and assessment after major repairs of pumps (first 80 participants get +2 points; those who answer correctly receive an additional 3–8 wealth points) - HCBBS Forum
39. What is the purpose of insulating and heating the gas line of a heating furnace? - HCBBS Forum
40. How to change the pipe diameter for E+ H72 series vortex flowmeters - HCBBS Forum
41. Cascade control - HCBBS Forum
42. Several questions regarding the feeding of space furnaces - HCBBS Forum
43. What instrument is used to measure pure hydrogen? - HCBBS Forum
44. 【Daily Question】What is the outlet for the overhead circulation oil in the cracking and fractionation tower on August 22nd? - HCBBS Forum
45. Questions regarding the design of the motor base - HCBBS Forum
46. I’d like to ask everyone for advice~ The cylinder’s air volume is insufficient for some unknown reason~ - HCBBS Forum
47. The origin of the regulation on the maximum hole diameter without additional drilling - HCBBS Forum
48. Container equipment is labeled HL and HHL - HCBBS Forum
49. Request for the assessment questions for the first phase of pressure vessel design examiner certification in 2015 - HCBBS Forum
50. How to use the Oriental simulation system, and how to view scores - HCBBS Forum
51. When is the registration and the exam date for this year’s Survey and Design Engineer examination? - HCBBS Forum
52. How are the water seal tanks for the two large tanks, namely the acidic water tank and the lean amine liquid tank, installed on top of those large tanks? - HCBBS Forum
53. At the same end of the air compressor, the two vibration measurement points that are 90° apart differ by a factor of 1 - HCBBS Forum
54. Design and selection of steam air coolers - HCBBS Forum
55. The effect of flow rate on compressor vibration - HCBBS Forum
56. Where should sales go in the new normal? - HCBBS Forum
57. 【Basic Knowledge of Glossary Definitions for “Polymers and Materials”-020】Glossary definitions related to polymers - HCBBS Forum
58. 【Daily Question】August 17: What is the function of metal passivators in FCC units? - HCBBS Forum
59. Errors in the updates of certain fields in the Site Statistics -- Management Team -- table; needs to be fixed! - HCBBS Forum
60. How is the allowable stress calculated under the exp operating condition? - HCBBS Forum
61. THA butterfly head cutting dimension calculation algorithm - HCBBS Forum
62. Without Ad, will the Trail Blazers’ strength decline significantly this year? - HCBBS Forum
63. EJA differential pressure transmitter, FF fieldbus, fault code AL22 - HCBBS Forum
64. How to translate Another factor that can affect both motor and total efficiency - HCBBS Forum
65. A detailed introduction to pump backpressure water hammer - HCBBS Forum
66. At the age when one should understand the ways of the world, I still cause worry to my parents - HCBBS Forum
67. Sensor technology makes electrical switches smarter - HCBBS Forum
68. I’d like to ask about the salary levels for designers in Shanghai - HCBBS Forum
69. What do the pressures of the condenser and reboiler in the Aspen distillation module mean? - HCBBS Forum
70. Slag tank pump selection - HCBBS Forum
71. Are there any corrosion-resistant instrument air hoses? - HCBBS Forum
72. Chemical Engineering in Daily Life – Question 15: Why is it easy to find toilets in China? Standard answer already available - HCBBS Forum
73. What is really like the intelligent capacitive drum level gauge? - HCBBS Forum
74. 【Weekly Topic】(39) August 20, 2015: What are the necessary conditions for a volumetric analysis method? - HCBBS Forum
75. Recommendations for domestic brands of metric screw scales and weight-reduction scales - HCBBS Forum
76. How to determine if there is a leak in the tube bundle of a fixed-tube-sheet heat exchanger - HCBBS Forum
77. Steam stripping and hydrogen stripping in the stripper of the diesel hydroprocessing unit - HCBBS Forum
78. How is the residual heat of gasification ash calculated? - HCBBS Forum
79. Replace the tank foam generator - HCBBS Forum
80. What are the main reasons for motor overheating during the individual testing of a pump? - HCBBS Forum
81. Regarding the temperature of the steam - HCBBS Forum
82. Screw compressor - HCBBS Forum
83. What material should be used for pipes in steam heating systems? - HCBBS Forum
84. What reaction occurs when benzaldehyde turns yellow under light? - HCBBS Forum
85. 【Haichuan Anhuan Cup】--0012+Safety Technical Regulations for Demineralized Water Operations+*anpangpang - HCBBS Forum
86. How to verify whether the analysis results are accurate and reliable - HCBBS Forum
87. 1000 MPa dynamic seal! - HCBBS Forum
88. May I ask what software you use for production? - HCBBS Forum
89. Heat transfer coefficient of shell-and-tube heat exchangers - HCBBS Forum
90. Measurement of turbine steam seal clearance - HCBBS Forum
91. Accident Handling 12: What are the measures to prevent coking of the bed material in circulating fluidized bed boilers? - HCBBS Forum
92. I have a question for everyone: in the numbering of expansion joints, what does the term \"nominal size\" refer to – the nominal diameter? - HCBBS Forum
93. What is Shanghai Huidé Energy Saving Technology Co., Ltd. like? - HCBBS Forum
94. Biological treatment activated sludge - HCBBS Forum
95. How do pitting and crevice corrosion occur? - HCBBS Forum
96. 【Daily Question】Question from Issue 20150811 - HCBBS Forum
97. Deaerator height - HCBBS Forum
98. Sign-in record post from August 19, 2015 - HCBBS Forum
99. What’s wrong if the submersible pump doesn’t deliver water? - HCBBS Forum
100. Reactor jacket water hammer - HCBBS Forum