English — Forum #723 (Page 474/642)

1. Outlet temperature of the propylene refrigeration compressor. - HCBBS Forum
2. 【Daily Question】 November 2nd: What are the upper and lower limits for gasoline ignition? - HCBBS Forum
3. Chemical corrosion protection in the smelting process of non-ferrous metals - HCBBS Forum
4. Recommended molten salt flow rate - HCBBS Forum
5. I urgently need the Chinese version of API-SPEC-12B; please help. . . - HCBBS Forum
6. September 2015 Outstanding Original Technology Theme Selection Contest (Award Post) - HCBBS Forum
7. Basic knowledge of alkylated gasoline - HCBBS Forum
8. 【Daily Question No. 44】October 30, 2015: +2 wealth for participation, plus another +3 to +8 wealth for correct answers - HCBBS Forum
9. Condensate oil: Knowledge of petroleum products - HCBBS Forum
10. Help needed - HCBBS Forum
11. What are the differences between 16MnR, Q235, and Q345R? - HCBBS Forum
12. Questions regarding the use of safety valves - HCBBS Forum
13. I haven’t been here for a long time; I have new questions and need everyone’s help - HCBBS Forum
14. Crude oil stabilization process: the products are light hydrocarbons and heavy hydrocarbons. Is the stripping process useful? - HCBBS Forum
15. The purging issue after oil is received or sent into storage tanks - HCBBS Forum
16. Request \"Fire separation distance analysis general plan\"” - HCBBS Forum
17. How exactly should rainwater and sewage be separated in the plant area? - HCBBS Forum
18. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 346 - HCBBS Forum
19. Joint Learning*1027: +2 wealth for participation, +9 wealth for correct answers - HCBBS Forum
20. Seeking advice on heating lubricant tanks - HCBBS Forum
21. Is the wet perimeter the perimeter of the water-crossing cross-section? Is that correct? - HCBBS Forum
22. At work, we encourage people to embrace life, inspire their youth, apply what they learn, and find motivation – 【please recommend some good books!】 - HCBBS Forum
23. Seeking help from experts! Who knows what the first 3 in 1120SC46010.3-18\"-03CB1S01-ST means? - HCBBS Forum
24. When starting a gas well by throttling to reduce pressure, is it possible to use ethylene glycol as a co-solvent? - HCBBS Forum
25. Seeking guidance from experts on theoretical knowledge - HCBBS Forum
26. What are the basic principles of the economic functions of safety? - HCBBS Forum
27. ASME material grade issues - HCBBS Forum
28. Control valve issues - HCBBS Forum
29. Seek advice on the comprehensive utilization of coke oven gas: producing natural gas as a by-product in the synthesis of ammonia synthesis gas - HCBBS Forum
30. What are the structural features of a carbon dioxide absorption tower? - HCBBS Forum
31. Eating too much salt is really harmful to health - HCBBS Forum
32. Pipes in the PID diagram - HCBBS Forum
33. Consultation on anti-corrosion issues for pipeline valves - HCBBS Forum
34. New methods to accelerate chemical reactions: “Multiphase Flow Reactors” – such as those used in phase-transfer catalytic reactions - HCBBS Forum
35. Welding of heat-treated 2205 sheets - HCBBS Forum
36. Sealing of pressure vessel nozzles - HCBBS Forum
37. [Serial] The growth story of a chemical engineering designer - 56 - HCBBS Forum
38. Equipment for grinding bentonite - HCBBS Forum
39. What are the factors that affect the solubility of a solution? - HCBBS Forum
40. Why were the grades for duplex steel removed in GB/T14976-2012? - HCBBS Forum
41. How is the scope of pressure vessels defined? - HCBBS Forum
42. Is it reasonable for the wastewater discharged from chemical plants to be treated at a leachate treatment station before being released? - HCBBS Forum
43. Some little tips on RTO for waste gas treatment - HCBBS Forum
44. Does anyone have a computer simulation version of the 375 or 475 controller? - HCBBS Forum
45. What are the methods for cleaning fouling from tower equipment? - HCBBS Forum
46. 【Daily Question No. 47】November 04, 2015: +2 wealth for participation, +3 to +8 wealth for correct answers - HCBBS Forum
47. Joint Learning*1029: +2 wealth for participation, +9 wealth for correct answers - HCBBS Forum
48. Issues with sliding pipe supports and fixed pipe supports - HCBBS Forum
49. Which factory produces the best-performing shielded pumps? - HCBBS Forum
50. What components are most likely to crystallize in the tube side of the [titanium cooler]? - HCBBS Forum
51. How to line a container head with stainless steel - HCBBS Forum
52. Is it difficult to separate n-butane and isobutane using crude butane for gas separation? Are there any units that are already in operation? - HCBBS Forum
53. Reasons for fluctuations in the measurement values of guided-wave radar level gauges - HCBBS Forum
54. Does anyone know which coking company in Henan uses equipment from Taiyuan Heavy Industry? ? ? - HCBBS Forum
55. Question about the unit for sulfur content - HCBBS Forum
56. Sign-in record post from October 29, 2015 - HCBBS Forum
57. Please, expert, help me work on the next question about the absolute pressure of a transformer - HCBBS Forum
58. What is asphalt penetration related to? - HCBBS Forum
59. 【Daily Question】Question 31: Test question from issue 20151030 (Reply +2)； For the other +3) - HCBBS Forum
60. 【Daily Question】Question from Issue 20151104 - HCBBS Forum
61. Who prepares the environmental emergency response plans for each workshop? - HCBBS Forum
62. What exactly does “Reduced Trim” mean as the spool type indicated in the control valve data sheet? - HCBBS Forum
63. Why are there so many fake potassium iodide reagents? - HCBBS Forum
64. Suspension bed and fluidized bed - HCBBS Forum
65. 3051 Pressure Transmitter - HCBBS Forum
66. Calibration of eddy current probes and piezoelectric probes - HCBBS Forum
67. Questions regarding learning materials on pumps. - HCBBS Forum
68. What does the pipe material in the PID diagram mean? - HCBBS Forum
69. Can an aeration head be used to replace an air flotation aerator? - HCBBS Forum
70. How many stages are there in catalyst reduction? - HCBBS Forum
71. The valve industry is too chaotic; I need help - HCBBS Forum
72. 【Daily Question】Chemical Engineering Principles 219: Distillation Columns (October 31) - HCBBS Forum
73. For the crude oil stabilization process, with reflux, can steam stripping be used to increase production? - HCBBS Forum
74. 【Daily Question】Chemical Engineering Principles 220: Distillation Columns (November 1) - HCBBS Forum
75. Everyone, let’s work on question 28 of the 2015 First-Class Constructor Examination – multiple-choice questions 27-30 from the \"Engineering Economics\" section; there will be a reward for those who answer correctly - HCBBS Forum
76. Database backup for Honeywell systems - HCBBS Forum
77. Why is the flow rate of water from the MBR not constant? - HCBBS Forum
78. Seek energy consumption data for petrochemical product production - HCBBS Forum
79. Insulation issues for non-metallic equipment~~ - HCBBS Forum
80. Polypropylene process flow diagram - HCBBS Forum
81. Regarding the hydrogenation cracking cycle hydrogen - HCBBS Forum
82. Requirements for flare installation in ammonia synthesis - HCBBS Forum
83. Advanced processing of coal tar - HCBBS Forum
84. 【Daily Question】Nov. 3, 2015: Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
85. 【Daily Question】10.29 True or False: The precision of separating petroleum distillation products - HCBBS Forum
86. Why do chemical explosions occur frequently from June to August? - HCBBS Forum
87. Please help recommend a high-quality sealing filler for instrument cable glands - HCBBS Forum
88. New methods to accelerate chemical reactions: “Multiphase Flow Reactors” – such as those used in phase-transfer catalytic reactions - HCBBS Forum
89. 0Cr13 welding process - HCBBS Forum
90. In the overall process of ammonia synthesis using coal as a raw material, what part does the shift reaction belong to, and what is its principle of operation? - HCBBS Forum
91. How did my wealth drop to 40? - HCBBS Forum
92. When using the ASPEN heat exchanger module and not entering the number of heat exchange tubes, the simulation results differ significantly from the actual values - HCBBS Forum
93. Pipeline Diagram Studio - HCBBS Forum
94. Briefly describe the purpose of the performance acceptance tests for circulating fluidized bed boilers? - HCBBS Forum
95. Problem of inaccurate indication by the load cell - HCBBS Forum
96. 【Daily Question】11.2 True or False: The hydrocarbons in the sulfur recovery feed gas are mainly burned in the flue gas incinerator - HCBBS Forum
97. Post on salary payment for the touring team in October 2015 - HCBBS Forum
98. What is the difference between bevel gear transmission and spur gear transmission? - HCBBS Forum
99. Looking for recommendations for high-quality low-flow metering pumps - HCBBS Forum
100. What are the harms of nitrogen oxides to the human body? - HCBBS Forum