English — Forum #723 (Page 626/642)

1. The mass flow meter reading shows a negative value - HCBBS Forum
2. 【Daily Question】June 15: What is the role of catalytic trirotation? - HCBBS Forum
3. Online analytical instrument for synthetic liquid nitrogen washing - HCBBS Forum
4. Differences between polyethylene adhesive tape and glass fiber cloth - HCBBS Forum
5. Issues regarding the heat transfer coefficient of negative pressure steam condensation - HCBBS Forum
6. Note: How much are you really worth? - HCBBS Forum
7. Questions about saturated steam and superheated steam? Urgent! Urgent! Urgent! Urgent! ! - HCBBS Forum
8. The separation tank size was calculated too small - HCBBS Forum
9. The application areas of the four major types of spectroscopy: mass spectrometry, spectroscopy, chromatography, and spectroscopy in general - HCBBS Forum
10. Zero-position tank maintenance access? Should it be normally closed? - HCBBS Forum
11. Features and applications of submersible pumps - HCBBS Forum
12. Seek treatment processes for wastewater with high ammonia nitrogen levels - HCBBS Forum
13. Problems with sulfur recovery processes. - HCBBS Forum
14. Issues regarding the standard dimensions in valve design - HCBBS Forum
15. Questions about flow meters - HCBBS Forum
16. Salinity tolerance for biological treatment - HCBBS Forum
17. Weekly topic: 5 Wealth points for those who answer correctly, 2 Wealth points for participation； Question 81 - HCBBS Forum
18. Sinochem Plastics Co., Ltd. Printing Materials Department is seeking sales representatives - HCBBS Forum
19. Food Topic 16 – Why should dumplings be eaten with vinegar - HCBBS Forum
20. Report on the PP plant at Yangtze River Petrochemicals, Donghua Energy - HCBBS Forum
21. Help – What are the design standards for pressure vessels with a design pressure exceeding 35 MPa? - HCBBS Forum
22. What measures has your organization taken to prevent heatstroke and reduce heat in the summer? - HCBBS Forum
23. Can *ao acid be used to adjust the pH of wastewater? - HCBBS Forum
24. Should the inlet valve for the accident nitrogen compressor be of type FO or FC? - HCBBS Forum
25. Two flow meters are installed on one pipeline - HCBBS Forum
26. How to improve the solubility of aminopicolinic acid (toxaphene) - HCBBS Forum
27. Manufacturers of diaphragm frames for nickel electrolysis - HCBBS Forum
28. Is it necessary to press the upper part of the converter catalyst layer with inert aluminum balls? - HCBBS Forum
29. For double-flange level gauges, what is the trend in liquid level when all of the material crystallizes in front of the primary valve on one side? - HCBBS Forum
30. Quench water return to tower temperature and quench tower top gas outlet temperature - HCBBS Forum
31. How is hydrogen production catalyst deactivation carried out, and how much heat is released during the deactivation process? - HCBBS Forum
32. How to translate “stem or shaft blow out resistant”? - HCBBS Forum
33. How to determine whether a safety valve has a diaphragm - HCBBS Forum
34. American standard 32\" pipe specification - HCBBS Forum
35. Does a pneumatic air hammer not have a motor? - HCBBS Forum
36. Simulation of catalyst consumption in circulating fluidized bed process - HCBBS Forum
37. Help – The meaning of safety valve models - HCBBS Forum
38. How to understand schedule? - HCBBS Forum
39. What causes maggots to form in the anoxic tank? - HCBBS Forum
40. Daily Question June 22, 2015 (Safe Communication): 3 wealth points for replies, 5 wealth points for correct answers; participation comes with rewards - HCBBS Forum
41. Seeking wastewater ammonia treatment technologies - HCBBS Forum
42. 【Safety Skills】What are the criteria for passing chemical analysis in hot work operations? - HCBBS Forum
43. Seeking information on the dimensions of Nippon Seiki bearings, bushings, and thrust discs - HCBBS Forum
44. Reinforcing layer inside the davyD111 container - HCBBS Forum
45. Weekly topic: 5 Wealth points for those who answer correctly, 2 Wealth points for participation； Question 77 - HCBBS Forum
46. Control of dry point in diesel reformate naphtha - HCBBS Forum
47. How to deal with centrifuge noise - HCBBS Forum
48. Why is preheating necessary before using an online chromatograph? - HCBBS Forum
49. After a leak occurred in the bottom plate of the sulfuric acid tank, a 400*400 square hole was made in the bottom plate; the weld cracked after welding - HCBBS Forum
50. \"China Coking Industry\" and \"Fuel & Chemicals\" - HCBBS Forum
51. Can a barrier solve the problem of interference? - HCBBS Forum
52. Why can a section of pipeline fall off its support frame? - HCBBS Forum
53. Questions regarding the signing of documents for pressure testing packages - HCBBS Forum
54. Summary and Rewards for Participation in the Overdraft Version of the Sea and River Management Standards - HCBBS Forum
55. One question per day; those who answer correctly receive 10 wealth points, while participants receive 2 wealth points； Question 226 - HCBBS Forum
56. Add a flow-limiting orifice plate at the outlet of the gear pump - HCBBS Forum
57. What do people usually do before installing packing in a structured packing tower? - HCBBS Forum
58. Who has information on Nikkatsu? Please send me some - HCBBS Forum
59. Seeking answers regarding control valve knowledge - HCBBS Forum
60. How to understand the turbine exhaust-type labyrinth seal - HCBBS Forum
61. They want the child to learn English, so they insist I buy an iPhone 6 - HCBBS Forum
62. Contact information for Jiangsu Sierbang Petrochemical’s coal-based olefins project - HCBBS Forum
63. Primary oil pressure and secondary oil pressure - HCBBS Forum
64. Calculation of the boiling heat transfer coefficient for plate evaporators - HCBBS Forum
65. 【Petrochemical Zone】Popular things in the petrochemical industry + Criticizing toilets (Funny 041) - HCBBS Forum
66. Coking: What is the difference between adding antifoam agents before the four-way valve and adding them at the top of the coke tower? - HCBBS Forum
67. Help, does anyone have technical materials related to wax oil/diesel hydrocracking? - HCBBS Forum
68. Regarding the issue of the daily burning time of the boiler - HCBBS Forum
69. Seeking help regarding three-eccentric valves - HCBBS Forum
70. Discussion on water reuse in caustic soda plants - HCBBS Forum
71. Seeking purchase of reclaimed water reuse equipment - HCBBS Forum
72. How do cooling towers help save water? - HCBBS Forum
73. Emergency help! ! ! ! ! ! ! ! ! - HCBBS Forum
74. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 232 - HCBBS Forum
75. Liquid-liquid mixing jet pump - HCBBS Forum
76. Small vibration dehydration screen for fine chemical industry - HCBBS Forum
77. The basket filter is clogged – what to do? - HCBBS Forum
78. Who has a thesis with an engineer title? Could you help me out! - HCBBS Forum
79. The design of the minimum return line orifice plate in the pump is unreasonable, resulting in high noise. What should be done? - HCBBS Forum
80. The soaking process after the catalyst has been reduced - HCBBS Forum
81. Selection of lubricating oil for boiler fans - HCBBS Forum
82. How to set the range of a steam flow meter - HCBBS Forum
83. 【Daily Question】Wastewater Knowledge-102 (June 17) (2 points for answering, 4 points for a correct answer) - HCBBS Forum
84. Transportation of large containers and heat exchangers - HCBBS Forum
85. What causes the increase in pressure difference in the hydrogenation reactor of a hydrogen production plant? - HCBBS Forum
86. May 2015 Outstanding Original Technology Theme Selection Contest — Voting Thread - HCBBS Forum
87. What are the typical steam parameters for circulating fluidized bed boilers, and what are the consequences of non-compliance? - HCBBS Forum
88. Dimensions of the loading port on light oil tankers - HCBBS Forum
89. 50-degree self-limiting heating tape for insulation cables. What does that mean? - HCBBS Forum
90. Project progress of Yulin Chemical Branch of China Shenhua Coal-to-Oil Chemical Co., Ltd - HCBBS Forum
91. The issue of nitrogen flushing for containers - HCBBS Forum
92. LCN and HCN - HCBBS Forum
93. Relevant calculations for water-to-water heat exchangers - HCBBS Forum
94. As the sulfur content in crude oil continues to increase, corrosion at the top of atmospheric distillation columns becomes more severe. Everyone shares the problems they have encountered in their facilities - HCBBS Forum
95. Goddesses and demons are powerline adapters; moderators, please spread the word - HCBBS Forum
96. 【Weekly Topic】Discussion on whether a valve should be installed in front of the safety valve (third week of June) - HCBBS Forum
97. What is the typical dust content in the process gas at the outlet of the carbon black scrubber tower? - HCBBS Forum
98. How to search for foreign standards - HCBBS Forum
99. How to choose the right flow meter from the wide variety of available ones - HCBBS Forum
100. What is the impact of high and low temperatures of the coal pulverization pressurized gasification agent on gasification production? - HCBBS Forum