English — Forum #723 (Page 557/642)

1. Pipeline grade table for 31% salt acid and 32% alkaline solution - HCBBS Forum
2. Help request regarding boiler calculation software - HCBBS Forum
3. Treatment of ammonia-vapored wastewater - HCBBS Forum
4. How to calculate the molecular diameter under near-pressure conditions - HCBBS Forum
5. How to reduce the water temperature in the aerobic tank - HCBBS Forum
6. What are the thoughts of those in the chemical industry regarding the repeated explosion accidents? . - HCBBS Forum
7. How should such a class monitor handle this? - HCBBS Forum
8. Second public announcement on the environmental impact assessment for the project to produce 60,000 tons per year of F-T fine chemical products through comprehensive utilization of coke oven gas in Xinjiang Parafi - HCBBS Forum
9. How is ethylene glycol used to produce plasticizers? - HCBBS Forum
10. Chemical Engineering in Daily Life – Question 14 with Standard Answers Provided - HCBBS Forum
11. What are the reasons for the high density of refined diesel, and what are the ways to adjust it? - HCBBS Forum
12. Issues regarding the interlock shutdown of the TRICON unit control system - HCBBS Forum
13. Tips for dealing with broken crane booms - HCBBS Forum
14. 【Daily Question】Question from Issue 20150817 - HCBBS Forum
15. There is a significant difference between the instrument readings and those displayed on the DCS system screen - HCBBS Forum
16. Who can tell me how far apart these two explosion points are? - HCBBS Forum
17. Registration for survey and design - HCBBS Forum
18. How to maintain and inspect the crane’s wire ropes - HCBBS Forum
19. Alkylation reactor: poor separation of acid and hydrocarbon - HCBBS Forum
20. Valve pressure testing - HCBBS Forum
21. Why is the medium in urea production plants highly corrosive to materials? - HCBBS Forum
22. Design related to the downcomer structure of plate towers - HCBBS Forum
23. Measurement of the corner angles of welded joints - HCBBS Forum
24. Equipment for pressure vessel airtightness testing - HCBBS Forum
25. What are the reasons for failure to ignite in gas chromatography? - HCBBS Forum
26. Are there any good chemical engineering design institutes in Suzhou? - HCBBS Forum
27. Can I exchange lucky points for wealth? - HCBBS Forum
28. Help! Asking an expert – regarding reciprocating compressors and centrifugal compressors - HCBBS Forum
29. Issue of comprehensive piston force and nominal piston force in reciprocating compressors (solved) - HCBBS Forum
30. The reason why stock investors dislike charging their phones the most - HCBBS Forum
31. Hydrogenation catalyst sulfidation problem - HCBBS Forum
32. Who can help me check the viscosity of DSD acid solution? - HCBBS Forum
33. Aspen7.2 simulation of caustic soda concentration - HCBBS Forum
34. Are small optimizations or modifications to general chemical processes require confirmation from a design firm? If the safety supervision department does not approve it, what should be done? - HCBBS Forum
35. Chemical Engineering in Daily Life – Question 19: How much salt should you consume? Standard answer already available - HCBBS Forum
36. Questions regarding the operating temperature of 904 material; seeking answers from experts - HCBBS Forum
37. In the DELTA V system, the automatic operation of the temperature control valve results in large fluctuations; how should the PID be adjusted? - HCBBS Forum
38. How are the temperature and pressure in the polymerization reactor controlled? - HCBBS Forum
39. What is the impact of system volume on circulating water? - HCBBS Forum
40. Who is the best at sludge dewatering? ? ? Does anyone know what technique it is? - HCBBS Forum
41. Is timing required in the process of producing acetylene? - HCBBS Forum
42. Rosemount double-flange level measurement - HCBBS Forum
43. The starch slurry was sprayed all over the floor like flowers. . . It took over an hour to clean! - HCBBS Forum
44. The reverse angle problem of reciprocating compressors - HCBBS Forum
45. Structure and function of the damper before the wrong throttle inlet - HCBBS Forum
46. ASPEN simulation - HCBBS Forum
47. 【Basic Knowledge of Glossary Explanations for “Polymers and Materials”-019】Glossary explanations related to polymers - HCBBS Forum
48. What are the organic solvents similar to carbon tetrachloride? - HCBBS Forum
49. For internal floating roof tanks with vent holes, is a mechanical breathing valve necessary? - HCBBS Forum
50. Which senior has the PID drawings? - HCBBS Forum
51. In the workshop, I encountered a type of raw material with the letters LY written on it. - HCBBS Forum
52. Do cold bending specimens of steel plates for pressure vessels need to simulate post-weld heat treatment? - HCBBS Forum
53. Why were the asterisks used to replace my posted content? - HCBBS Forum
54. The tank under the pipe gallery - HCBBS Forum
55. 【Daily Question】Question from Issue 20150814 - HCBBS Forum
56. Which industries are related to cryogenic fluids? - HCBBS Forum
57. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 276 - HCBBS Forum
58. The corrosion of stainless steel by a mixture of HCl and water vapor - HCBBS Forum
59. Q235B steel plates cannot be used to manufacture Class III pressure vessels. - HCBBS Forum
60. I won 50 Lucky three times while cracking eggs today; I feel like I’m really lucky - HCBBS Forum
61. The issue of thermal expansion of the fluid inside the heat exchanger - HCBBS Forum
62. Why can’t I log in to Haichuan these past two days? - HCBBS Forum
63. Regarding the axial displacement of expansion joints - HCBBS Forum
64. Who has video courses on process equipment design? - HCBBS Forum
65. TRICON system issues - HCBBS Forum
66. Expansion joint installation issues - HCBBS Forum
67. What is the most commonly used software for heat exchanger calculations? - HCBBS Forum
68. The explosion at the Ruihai Hazardous Materials Logistics Warehouse in Tianjin Port: a warning for us! - HCBBS Forum
69. Accident Handling**: What are the hazards of a clogged return feeder in a circulating fluidized bed boiler? - HCBBS Forum
70. Forty years of hard work to perfect it: How China developed its own complete set of aromatic hydrocarbon technologies - HCBBS Forum
71. 【Daily Question】August 18: Judgment regarding the measurement of thrust disc clearance (+2 for the first 80 participants + 3–8 wealth points for correct answers) - HCBBS Forum
72. Recruiting desulfurization and denitrification design engineers - HCBBS Forum
73. Looking for information on the absorption of SO2 by ionic liquids - HCBBS Forum
74. Incident Handling 13: How to deal with coking of the bed material in a circulating fluidized bed boiler? - HCBBS Forum
75. LNG storage tank - HCBBS Forum
76. Question: Particle size of the raw oil mist - HCBBS Forum
77. How should the valve room for the oxygen control valve bank in an air separation unit be designed? Help. - HCBBS Forum
78. Please, experts, help me figure this out! Regarding the pressure issue of safety valves - HCBBS Forum
79. What are the factors affecting the cold hydrogenation conversion rate? - HCBBS Forum
80. Partition owner: Technical expert operation procedure - HCBBS Forum
81. What are the octane rating and aromatic content of reformed blended gasoline? - HCBBS Forum
82. What are the applicable scenarios for 235B and 245R, 345R? - HCBBS Forum
83. Chemical Engineering in Life - Question 6 - Standard answers available - HCBBS Forum
84. Seeking expert help with a thermometer issue - HCBBS Forum
85. Is it better to use a gauge pressure gauge or an absolute pressure gauge in a high vacuum environment? - HCBBS Forum
86. What do rich gas and dry gas refer to respectively? Please advise - HCBBS Forum
87. Reciprocating pump pressure stabilization pack - HCBBS Forum
88. The air cooler is placed at the top of the tower; how should it be installed? A special air cooler? - HCBBS Forum
89. Where does the waste amine solution in the tower and pipelines go when the amine solution regeneration unit is shut down? - HCBBS Forum
90. Inspections are not a trivial matter - HCBBS Forum
91. Jinlin Sheet Metal Unfolding Software - HCBBS Forum
92. 【Daily Question】Chemical Engineering Principles 140: Convection (August 13) - HCBBS Forum
93. The relationship between low-nitrogen burners and boilers - HCBBS Forum
94. Principles that should generally be followed for the installation location of valves - HCBBS Forum
95. Injection and shutdown of hydrogenation high-pressure air-cooling corrosion inhibitors - HCBBS Forum
96. Market conditions for cresol and p-cresol in 2015 - HCBBS Forum
97. Gas chromatograph manufacturers for natural gas hydrogen production plants - HCBBS Forum
98. 【Daily Question】Question from Issue 20150819 - HCBBS Forum
99. How to maintain high-flow heat exchangers? - HCBBS Forum
100. I think there’s something wrong with this question - HCBBS Forum