English — Forum #723 (Page 598/642)

1. How to regenerate and recycle activated carbon - HCBBS Forum
2. Regarding the issue of oil adjustment - HCBBS Forum
3. Weekly topic: 5 Wealth points for those who answer correctly, 2 Wealth points for participation； Question 115 - HCBBS Forum
4. Cost of producing 1 cubic meter of LNG from coke oven gas - HCBBS Forum
5. Need help with tower calculations? Find the tower diameter and height - HCBBS Forum
6. What material should be used for high temperatures, acidity, and high solid content? - HCBBS Forum
7. Where should the materials from the online analysis cabin be disposed of? - HCBBS Forum
8. A class survives 3 disasters, with an inescapable shadow - HCBBS Forum
9. Are there any chemical engineering design companies in Changchun? - HCBBS Forum
10. 【Daily Question】Chemical Engineering Principles 103: Plate Columns (July 8) - HCBBS Forum
11. Why hydrogen pipelines should not be laid in ditches - HCBBS Forum
12. What is zero-grade air? - HCBBS Forum
13. The market is unstable; PVC continues to decline - HCBBS Forum
14. Float level gauge - HCBBS Forum
15. How to handle work performance evaluations - HCBBS Forum
16. Who has seen my salary? - HCBBS Forum
17. 【Daily Question】Wastewater Knowledge-112 (July 14) (2 points for answering, 4 points for a correct answer) - HCBBS Forum
18. Is there anything else required for the flowmeter field transmitter that performs temperature and pressure compensation? - HCBBS Forum
19. A couple of things about injection molding - HCBBS Forum
20. Regarding the long-term trend recording function of the CS3000, how many days can long-term trends be stored? Why do different tag numbers have different retention times? - HCBBS Forum
21. The issue of centralized heating in the industrial park - HCBBS Forum
22. The role of production water in LNG storage tanks - HCBBS Forum
23. NACE treatment, liquid-contacting part - HCBBS Forum
24. Automatic control of scrubbers and vacuum towers - HCBBS Forum
25. Why does a high lubricating oil temperature lead to low compressor lubricating oil pressure? - HCBBS Forum
26. For those all waiting for the notification regarding registration for chemical-related activities, have you ever thought that the relevant authorities won’t issue such a notification at all? - HCBBS Forum
27. What does 3JIA-6-16/22(3JIAVID) mean? - HCBBS Forum
28. What happens if the filter at the inlet of the vacuum tower bottom pump gets clogged? - HCBBS Forum
29. For the layout of fire hydrants in a warehouse, are they needed on all four sides of the warehouse? - HCBBS Forum
30. Gasification simulation - HCBBS Forum
31. What is the structure of a multi-stage centrifugal pump? - HCBBS Forum
32. Rotary dryer - HCBBS Forum
33. The first domestic production facility for cobalt-based slurry-bed Fischer-Tropsch synthesis catalysts developed by Yanchang Petroleum was successfully commissioned - HCBBS Forum
34. Prices of molecular sieves and activated alumina for air separation - HCBBS Forum
35. Shijiazhuang is seeking process design engineers with over 10 years of experience - HCBBS Forum
36. Calculation of the one-pass conversion rate for methanol synthesis - HCBBS Forum
37. Material issues with the thermal insulation support ring - HCBBS Forum
38. What to do when you run into this kind of guy? - HCBBS Forum
39. Examination and Training for Pressure Pipeline Design Approvers - HCBBS Forum
40. What is the difference between selecting a negative pressure and a gauge pressure transducer? - HCBBS Forum
41. Heat transfer oil furnace fuel - HCBBS Forum
42. What are good ways to deal with a leak in the heating coil at the bottom of a liquid sulfur storage tank? - HCBBS Forum
43. How to deal with carbon monoxide carried in the ethylene at the top of the C2 distillation column? - HCBBS Forum
44. Aromatic content testing - HCBBS Forum
45. Nippon Steel 6-meter M-type coke oven - HCBBS Forum
46. Can there be an excess of dimers in the vapor phase of butadiene? - HCBBS Forum
47. Issues related to the daily maintenance of instruments - HCBBS Forum
48. 【Daily Question】- Technical parameters of the spraying unit in an eye washer (2 points for a reply, 4 points for a correct answer) - HCBBS Forum
49. Market analysis of the domestic sulfuric acid market in June 2015 - HCBBS Forum
50. What are the requirements for the verticality of the equipment flanges on heat exchangers? - HCBBS Forum
51. How to handle filter elements with oil-containing fiber balls? - HCBBS Forum
52. What are the key parameters of screw pumps? - HCBBS Forum
53. The function of solenoid valves - HCBBS Forum
54. When testing stainless steel valves, the chloride ion content in water must not exceed 25 ppm - HCBBS Forum
55. [Weekly Topic] -008- The impact of carbon-nitrogen ratio on the operation of activated sludge process - HCBBS Forum
56. Difference in heat exchange between 8 kg of steam and 4 kg of steam - HCBBS Forum
57. How to determine the length of bolts and nuts for glass-lined pipes - HCBBS Forum
58. Could someone explain the production process and flow of dimethyl ether? - HCBBS Forum
59. Are there any standards for low-temperature protection? - HCBBS Forum
60. Seeking help with determining the endpoint in potentiometric titration - HCBBS Forum
61. What happens if a section of a pipe that relies on gravity flow is reduced in diameter? - HCBBS Forum
62. How much is a reasonable fine for employees per day? - HCBBS Forum
63. Jokes about the weak stock market - HCBBS Forum
64. The design intent of having the pressure vessel safety valve piping extend all the way to the bottom of the vessel - HCBBS Forum
65. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 248 - HCBBS Forum
66. What property package is used in Aspen Utilities Planner? - HCBBS Forum
67. On the production costs of pure water and ultrapure water - HCBBS Forum
68. The “Industrial Test of Integrated Gasification-Low-Rank Coal Pyrolysis Technology (CGPS)” project has passed the evaluation - HCBBS Forum
69. The gauges printed with a 3D printer are so cool! - HCBBS Forum
70. During forward flow expansion, both the expander and the air compressor are oversized; how can the condition of air entering the tower be ensured? - HCBBS Forum
71. Equipment Supervisor (based in Changshou District), Chongqing Group Company – a recommendation bonus of 500 yuan - HCBBS Forum
72. How does your factory control the noise generated by the fans in the boilers? - HCBBS Forum
73. Design pressure of pipeline »= Design pressure of equipment - HCBBS Forum
74. On the relationship between boiling point and relative volatility - HCBBS Forum
75. Selection of the absorption tower circulation pump - HCBBS Forum
76. Yesterday, HaiChuan’s registered users exceeded 1 million - HCBBS Forum
77. Make interlocking with Hali Systems DCS 1.1 - HCBBS Forum
78. Can rope holes for maintenance be designed on the top of a circulating fluidized bed boiler? - HCBBS Forum
79. Steam pipeline purging should be carried out after the insulation work on the pipeline system is completed - HCBBS Forum
80. Discussion on reducing losses in oil depots - HCBBS Forum
81. Electric valve for fire-fighting dual-purpose gun in tank area - HCBBS Forum
82. Why does a distillation tower need reflux? - HCBBS Forum
83. Bolt nut 35#/25# - HCBBS Forum
84. How should clause 10.1.1 of GB50093-2013 be understood? - HCBBS Forum
85. If you were the class leader, how would you communicate with the troublemaking class members? - HCBBS Forum
86. Analysis of Key Environmental Protection Markets in the Second Half of 2015 (Personal Opinion) - HCBBS Forum
87. Which projects for coal-to-olefins are still in progress currently? - HCBBS Forum
88. Question: How should “Battery Limit Conditions” be translated? Thank you! - HCBBS Forum
89. Can a manual high-pressure hydraulic directional valve handle such high pressures manually? - HCBBS Forum
90. Level controller - HCBBS Forum
91. What is the density of 50.4% liquid caustic at 60°C? - HCBBS Forum
92. What does it mean to keep a low profile in personal life but be proactive in one’s work? - HCBBS Forum
93. Feed coarse argon column - HCBBS Forum
94. Oil and gas field pipelines - HCBBS Forum
95. How to perform the temper embrittlement tendency assessment test with stepped cooling - HCBBS Forum
96. Summary of domestic producers of hydrogenation catalysts - HCBBS Forum
97. Foss positioner feedback iop - HCBBS Forum
98. I’m turning to the experts here: How can one use Honeywell PKS to set the system time in the configuration settings? And how can historical data be viewed after it has been archived? - HCBBS Forum
99. Do products made from foreign materials that are to comply with national standards require a welding procedure qualification? - HCBBS Forum
100. How is the KV value of a valve calculated? - HCBBS Forum