English — Forum #723 (Page 604/642)

1. Oil-containing wastewater treatment technology and PID diagram - HCBBS Forum
2. What signals are transmitted to the DCS by differential pressure instruments (such as differential pressure level transmitters and densitometers)? Is it a pressure signal or... - HCBBS Forum
3. What are the methods for phosphorus removal from wastewater? - HCBBS Forum
4. Who has the **latest military standards – General specifications for metal bellows expansion joints used in pipelines** - HCBBS Forum
5. following a reasoned request from - HCBBS Forum
6. Characterization issues of coal simulant for gasification - HCBBS Forum
7. How to reduce the cost of blending marine diesel - HCBBS Forum
8. 【Daily Question】2015.07.01 Heat exchange tubes (2 wealth points for a reply, +3–8 wealth points if the answer is correct) - HCBBS Forum
9. What material should be chosen for a tower with a temperature of around 820 degrees? - HCBBS Forum
10. Discussion on several issues regarding low-temperature methanol washing - HCBBS Forum
11. Catalyst sulfidation and passivation in hydrocracking units - HCBBS Forum
12. A translation issue in the process package - HCBBS Forum
13. Daily Question 2015.7.1 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (multiple-choice question) - HCBBS Forum
14. Water feeding issue in the dry gas hydrogen production deoxygenator - HCBBS Forum
15. Could someone please help upload the two books by Professor Chen Xuejun related to two-phase flow? - HCBBS Forum
16. What material should be chosen for a tower with a temperature of around 820 degrees? - HCBBS Forum
17. Issues regarding steam/nitrogen purging in the device - HCBBS Forum
18. Regarding the phase loss issue in the input power supply of the frequency converter - HCBBS Forum
19. Weekly topic: 5 Wealth points for correct answers, 2 Wealth points for participation； Question 102 - HCBBS Forum
20. Which is more resistant to chloride corrosion, RPP or PTFE? - HCBBS Forum
21. What is the purpose of the project number for chemical engineering projects? - HCBBS Forum
22. 【Daily Question】- Temperature of the water source used for eye washers (3 points for a reply, 5 points for the correct answer) - HCBBS Forum
23. Pressure tap point of the pressure transmitter - HCBBS Forum
24. Selection of alloy materials at low pH values - HCBBS Forum
25. The issue of whether face washers or cleansing devices should be used in China’s standards for eye washers - HCBBS Forum
26. 【Daily Question】- Questions on occupational diseases and occupational health (2 wealth points for replies, +2 wealth points for correct answers) (June 26) - HCBBS Forum
27. Impact of using vacuum distillation oil as a substitute - HCBBS Forum
28. One iron metal + R&D engineer - HCBBS Forum
29. Jiangsu Province has issued the 2014 certification for chemical engineering professionals! - HCBBS Forum
30. Seeking advice on the reasons for variations in the quality of silicone monomer products - HCBBS Forum
31. Calculation of valve (butterfly valve) torque! - HCBBS Forum
32. Product features of electromagnetic flowmeters - HCBBS Forum
33. What does 0.5KV mean in the cable model ZR-DJYVP-0.5KV? What factors are primarily considered when choosing a cable model? - HCBBS Forum
34. Transportation issues of 1000kg liquid chlorine cylinders within the plant - HCBBS Forum
35. Fire hazard classification of ammonia water and fire separation distances for underground ammonia tanks - HCBBS Forum
36. Innovative start-up and shutdown method for the coal-based hydrogen production unit at Maoming Petrochemical - HCBBS Forum
37. Installation requirements for a 64-kilogram gate valve with a DN40 diameter - HCBBS Forum
38. Question 63 on the morning of the first day of 2011 - HCBBS Forum
39. The engagement will take place in a while. - HCBBS Forum
40. Electric reciprocating pump accumulator - HCBBS Forum
41. How is residence time calculated? ? - HCBBS Forum
42. May I ask what are some good chemical enterprises in Jining? - HCBBS Forum
43. The flammability issue of metallic magnesium - HCBBS Forum
44. Weekly topic: 5 Wealth points for correct answers, 2 Wealth points for participation； Question 104 - HCBBS Forum
45. I would like to ask about the registration fee for certified safety engineers - HCBBS Forum
46. A problem with the calculu block of CS3000 - HCBBS Forum
47. Do I need to consider their order when installing the instruments? - HCBBS Forum
48. I have a question regarding the bottom liquid level in a pressure relief tower - HCBBS Forum
49. Someone in the same department has changed roles – how do you adapt to the new job? - HCBBS Forum
50. Seeking help with high-pressure saturated water pumps - HCBBS Forum
51. Identifying cables can be approached from several aspects - HCBBS Forum
52. Dear sea friends, what is used to absorb the acidic gas emitted from your workshops? - HCBBS Forum
53. Pump selection for catalytic flue gas desulfurization EDV - HCBBS Forum
54. Parma actually went bankrupt – business is truly like a battlefield! - HCBBS Forum
55. Issues regarding the handling of safety procedures for multiple projects at the same company - HCBBS Forum
56. What do you do if you see a supervisor not wearing a safety helmet? - HCBBS Forum
57. Regarding the selection of reactors - HCBBS Forum
58. What is an appropriate value for controlling the temperature of the transformed stripping off-gas? - HCBBS Forum
59. Clarifying the usage of frequency converters in acid pumps - HCBBS Forum
60. Six common quality defects in bearings after heat treatment - HCBBS Forum
61. Jiangsu High-Tech Fluorine Chemical Industrial Park — Changshu Fluorine Chemical Industrial Park - HCBBS Forum
62. 【Daily Question】Principles of Chemical Engineering 095: Multiple Parallel Walls (June 30) - HCBBS Forum
63. Is it normal for the pressure and temperature inside the cylinder to be higher than those in the jacket? - HCBBS Forum
64. Technical issues regarding how to ensure the quality of water in eye wash stations on-site - HCBBS Forum
65. Medium and temperature of frozen saline - HCBBS Forum
66. Find the viscosity of the material - HCBBS Forum
67. Abnormal noises from Cummins diesel engines when shut down - HCBBS Forum
68. What does wzhbzhxf spell? - HCBBS Forum
69. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 236 - HCBBS Forum
70. I occasionally hear this song, “The Song of the Aspiring Students,” and would like to recommend it to everyone! - HCBBS Forum
71. What is the composition of hydrogen produced as a by-product of coke oven gas methanation? - HCBBS Forum
72. What impact does the level of CO produced as a result of this transformation have on methanol synthesis? - HCBBS Forum
73. Which company is the best for cyclone separators used in gasification? - HCBBS Forum
74. What is the difference between hot and cold torches in pressurized gasification of pulverized coal? - HCBBS Forum
75. I no longer need another account that was registered three years ago; how can I delete it? - HCBBS Forum
76. Suction pressure of liquefaction unit - HCBBS Forum
77. Guidelines for the Standardized Management of Industrial Hazardous Waste Generating Units--3 - HCBBS Forum
78. Knowledge Training Plan for Various Positions in 5.5-meter Ramming Coke Ovens - HCBBS Forum
79. MAN air separation unit oil station three-way valve - HCBBS Forum
80. Adaptation period after changing jobs - HCBBS Forum
81. 【Daily Question】Chemical Engineering Principles 092: Filtration Rate (June 27) - HCBBS Forum
82. Regarding the issue of the decrease in the outlet temperature of the gaseous heat medium - HCBBS Forum
83. Operating Procedures for Plate Heat Exchangers in Reformation Units - HCBBS Forum
84. Questions about hydrogen production operations? - HCBBS Forum
85. Is the normal-temperature tank at a low temperature? How to check? - HCBBS Forum
86. Welding issues of super duplex steel SAF2507 - HCBBS Forum
87. What is the purpose of certified safety professionals? - HCBBS Forum
88. How to reduce vibration and noise in washing machinery - HCBBS Forum
89. Seeking help with gas distribution and boiling pot issues in a converter furnace - HCBBS Forum
90. Principle of lubricating oil temperature control valve - HCBBS Forum
91. If the intermediate-pressure reactor in the hydrogen production plant overheats, can medium-pressure steam be introduced? - HCBBS Forum
92. Reasons for catalyst feed atomization - HCBBS Forum
93. Questions regarding the safety procedures for hazardous chemical projects - HCBBS Forum
94. In steel structures, for the fillet welds at the right angles between two vertical plates, is the height of the weld leg determined by the thickness of the thin plate? Where is it from? - HCBBS Forum
95. Chloride ions—oil seal corrosion issue - HCBBS Forum
96. What devices can be used to process heavy fuel oil and coal tar - HCBBS Forum
97. 【Daily Question】June 30 – Issues related to starting centrifugal pumps (+2 for the first 80 participants, +3–8 extra points for correct answers...) - HCBBS Forum
98. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 237 - HCBBS Forum
99. Comparison of the advantages and disadvantages of diesel engines and gasoline engines - HCBBS Forum
100. Seeking methods for treating iron-containing wastewater - HCBBS Forum