English — Forum #723 (Page 382/642)

1. Slaughterhouse wastewater -- which comes first, flotation or hydrolysis acidification tank? - HCBBS Forum
2. Environmental Protection Daily Question 1.13: Participate for a prize; 3 correct answers earn an additional 5 as a prize - HCBBS Forum
3. 【Daily Question】January 18, 2016: Allowable stress for austenitic stainless steel (first 60 replies + 2 points; additional 3–8 points for correct answers)... - HCBBS Forum
4. 【Daily Question】Chemical Engineering Principles 295: Sloped Tube Water Quality (January 15) - HCBBS Forum
5. Related to the gasification drum of space furnaces - HCBBS Forum
6. Treatment of various types of waste oil and water from coking processes: such as the water seals at the inlet and outlet of gas holders, gas condensate, and compressor oil-water mixtures – how do different companies handle this? - HCBBS Forum
7. 20160113 One question per day - HCBBS Forum
8. Please have a professional explain this: *The acid concentration unit for ao is 940 mL/L–1050 mL/L - HCBBS Forum
9. Haichuan Thanksgiving Season – The Teacher of Life, My Father 【Workplace 011】 - HCBBS Forum
10. Are the branch pipes connected in front of or behind the pressure gauge and orifice flow meter on the controller the same? - HCBBS Forum
11. “Whoever causes the problem must take responsibility for it! ” - HCBBS Forum
12. Benzene hydrogenation extraction distillation section - HCBBS Forum
13. For flow and filtration aids used in papermaking (auxiliary materials), when mixed with water, what type of flow meter should be used to measure the flow rate? - HCBBS Forum
14. Chilling water pump - HCBBS Forum
15. Manufacturers of catalytic main fans and exhaust fans - HCBBS Forum
16. Specifications of centrifugal pumps - HCBBS Forum
17. Seek advice on the size design of gas buffer tanks in pneumatic conveying systems - HCBBS Forum
18. Estimation of heat transfer losses - HCBBS Forum
19. Gas for CO incinerator in catalytic units - HCBBS Forum
20. Compressor stroke - HCBBS Forum
21. What are the requirements for instruments used to measure the flow rate of supercritical fluids? - HCBBS Forum
22. What are the main aspects checked during the three inspections and four adjustments for the steam pipeline of a newly installed unit? What is the purpose of acid cleaning medium-pressure steam? - HCBBS Forum
23. Area used in the refinery complex - HCBBS Forum
24. How to check crude oil prices - HCBBS Forum
25. Fluctuations in Emerson Coriolis mass flow meters - HCBBS Forum
26. The tank containing concentrated sulfuric acid has a hole in it; how can the tank be drained so that it can be repaired? - HCBBS Forum
27. What methods are used to determine whether the conversion temperature at each section of the converter is at its optimal level? - HCBBS Forum
28. How to choose heat transfer oil when heating between 100 degrees and 180 degrees - HCBBS Forum
29. 【Daily Question】2016.1.13 Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
30. How is the load of the heat exchanger in the butadiene tank determined? - HCBBS Forum
31. What is DHT-4H in polypropylene additives? - HCBBS Forum
32. 【Daily Question】2016 1.21 Multiple-choice question: When the reaction system of a hydrogenation unit is airtight, it is necessary to prevent accidents where high pressure leaks into the low pressure area. - HCBBS Forum
33. Specialization in catalysts - HCBBS Forum
34. Heat exchanger design software HTRI - HCBBS Forum
35. Rod mill - HCBBS Forum
36. 20160114 One question per day - HCBBS Forum
37. 11111111111111111111111111 - HCBBS Forum
38. Seeking a supervisor for the octanol production workshop - HCBBS Forum
39. Do petrochemical plants need to have enclosures around them? - HCBBS Forum
40. The issue of wall temperature monitoring in the organic sulfur hydrogenation reactor for coke oven gas - HCBBS Forum
41. Selection method for stainless steel mesh belt conveyors - HCBBS Forum
42. LPG low-point drainage issue - HCBBS Forum
43. Aspen plus, Hysys Principle Technical Support - HCBBS Forum
44. Structural differences of three-phase separators - HCBBS Forum
45. Haichuan’s “Season of Gratitude” – A Tribute to My Master, Master Wang [Production Area 002] - HCBBS Forum
46. Are people really ruined by money? - HCBBS Forum
47. Environmental Protection Daily Quiz: 1.15 – Participate for prizes; 3 correct answers earn an additional 5 prizes - HCBBS Forum
48. I just want to know! What on earth is instrument design for! - HCBBS Forum
49. Regarding the setting of binary interaction parameters - HCBBS Forum
50. Imagine what happens when the CU-based catalyst used in low-temperature conversion is not fully reduced, and process gas is introduced - HCBBS Forum
51. 【Daily Question No. 95】January 12, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
52. How to calculate the exergy y in HYSYS processes!!! - HCBBS Forum
53. How to treat the waste alkali discharged from the acetylene purification neutralization tower and the wastewater discharged from the cooling tower? - HCBBS Forum
54. Using water instead of oil for lubrication in centrifugal compressors - HCBBS Forum
55. Does the temperature transmitter built into the pump send its signal to the instrument control room? - HCBBS Forum
56. What kind of pump is a radiation pump? - HCBBS Forum
57. 【Daily Question】2016.01.12 15CrMo welding (2 wealth points for replying, plus 3-8 additional wealth points for a correct answer) - HCBBS Forum
58. Acceptance is the greatest form of kindness - HCBBS Forum
59. Chemical engineering journals and magazines - HCBBS Forum
60. A valuable new perspective on environmental protection – take a look at the new biological fillers for wastewater treatment (it only takes a minute to read about them; failing to do so might cost you regret for life) - HCBBS Forum
61. Turbine shaft seal leakage - HCBBS Forum
62. 【Active participation for mutual improvement: 1.23-1.29 – +2 for participation, +3~10 for correct wealth】 - HCBBS Forum
63. Hydrorefining, reforming, cracking - HCBBS Forum
64. Piping issues in centrifugal refrigeration units - HCBBS Forum
65. What are the reasons for the lack of reaction heat in medium-frequency converters? - HCBBS Forum
66. 2016120 One Question per Day - HCBBS Forum
67. Is the East experiencing a collective outbreak this year? - HCBBS Forum
68. Materials for pressure vessels that can withstand temperatures of minus 270 degrees Celsius? - HCBBS Forum
69. Issues regarding the flanges of heat exchanger linings - HCBBS Forum
70. Help: Calcium oxide is more difficult to dissolve in winter than in summer - HCBBS Forum
71. ★Specialized Examination for Chemical Engineering ★ — One question per day (2016-1-19) — Points are awarded for participation - HCBBS Forum
72. Seeking help with PROSAFE RS issues - HCBBS Forum
73. Analysis of the software HTRI - HCBBS Forum
74. Minor issues with the vacuum system pipes - HCBBS Forum
75. Fulu Project Management Documents - HCBBS Forum
76. Environmental Protection Daily Question 1.20: Participate for prizes; 3 correct answers earn an additional 5 prizes - HCBBS Forum
77. 【Daily Topic】【Live Version 20160122】 - HCBBS Forum
78. Dry powder fire extinguishers are placed in the evacuation passages - HCBBS Forum
79. Design and manufacturing qualifications for pressure vessels not classified into categories - HCBBS Forum
80. Chenchen Design Institute’s chlor-alkali design documents - HCBBS Forum
81. If the ammonia nitrogen level in the effluent is higher than that in the influent, how should it be adjusted? - HCBBS Forum
82. Gasoline desulfurization alcohol - HCBBS Forum
83. On the sulfidation of iron-molybdenum catalysts - HCBBS Forum
84. Control the temperature of the reaction vessel; for steam, control is generally applied to the steam inlet. As for circulating water, should control be applied to the water inlet or the outlet? - HCBBS Forum
85. Compressor reverse angle - HCBBS Forum
86. Questions regarding the desorption and relief system of the CO2 stripping urea plant - HCBBS Forum
87. These three sentences are classic - HCBBS Forum
88. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 421 - HCBBS Forum
89. 【Daily Question】1.17 Multiple-choice question: According to **health standards, the maximum allowable levels of hydrogen sulfide and sulfur dioxide in industrial and mining areas are... - HCBBS Forum
90. Manual calculation for coil heating - HCBBS Forum
91. Compressor lubricating oil - HCBBS Forum
92. The construction industry is shrinking, and excavators are not selling well; sales of excavators dropped by 34.9% in 2015 - HCBBS Forum
93. Pre-cooling system filler... - HCBBS Forum
94. How many people are taking the motivation exam this year~? ~· - HCBBS Forum
95. Ball valve for harsh conditions - HCBBS Forum
96. 【Daily Question No. 66】January 14, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
97. Seek advice on the classification, differences, and requirements of process flow diagrams - HCBBS Forum
98. Regarding the types of safety valves, when are they designed as safety valves for fire conditions, and when are they used as safety valves for blockage conditions? - HCBBS Forum
99. 【Daily Question】Chemical Engineering Principles 294: High-Mixing (January 14) - HCBBS Forum
100. Is it good to spread salt when it snows? - HCBBS Forum