English — Forum #723 (Page 307/642)

1. Do steam boiler cylinders need to be equipped with safety valves? - HCBBS Forum
2. Aspen simulation of the concentrated sulfuric acid-based acetylene purification unit - HCBBS Forum
3. After drying sodium chloride, crystallization problems still occur; please suggest effective solutions - HCBBS Forum
4. Water treatment ----- Applications of ultraviolet light - HCBBS Forum
5. A194 2H and A194 2HM - HCBBS Forum
6. The door of the gas station’s power distribution room leads directly outside - HCBBS Forum
7. Hesitating whether to jump or not - HCBBS Forum
8. Who are Yokogawa’s key distributors? - HCBBS Forum
9. Problems encountered during Caesar installation; I earnestly ask experts for help in resolving them - HCBBS Forum
10. Construction budget for instrumentation projects - HCBBS Forum
11. Relationship between valve opening degree and flow, pressure, and velocity - HCBBS Forum
12. How are the dimensions of the upper section of the amine-rich liquid flash tank in the amine solution regeneration unit calculated? - HCBBS Forum
13. Polyurethane elastomer with a hardness of 70 Shore A - HCBBS Forum
14. A plan to reform natural gas prices is being developed; prices for natural gas used in fertilizer production are set to be made more flexible - HCBBS Forum
15. Daily Question March 31, 2016: Return ratio problem - HCBBS Forum
16. 【Daily Question No. 145】March 30, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
17. Market situation of compound fertilizers - HCBBS Forum
18. How to determine the speed and power of a motor? - HCBBS Forum
19. Aspen regarding the Mitsui Cup - HCBBS Forum
20. Fengxi Linyi syngas and steam co-generation gasifier put into operation - HCBBS Forum
21. Can a cosmetics intermediate production workshop and a cosmetics finished product workshop coexist within the same factory complex? - HCBBS Forum
22. Can Q345R steel plates be welded with J427 electrodes? - HCBBS Forum
23. Compression refrigeration - HCBBS Forum
24. Issues related to CO in hydrorefining - HCBBS Forum
25. Seeking drawings for container mobile houses - HCBBS Forum
26. Fluctuations of the control valve - HCBBS Forum
27. Seeking advice on the flow rate of polypropylene foldable filter elements - HCBBS Forum
28. Besides its use in flue gases from power plant boilers, in which other industries has CCS been adopted? - HCBBS Forum
29. Can aerobic water be recycled to the anaerobic ammonia removal process? - HCBBS Forum
30. Request the calculation process for crude oil electric heaters - HCBBS Forum
31. How should wastewater treatment equipment be managed? The production process is so complex and complicated; I’m not familiar with it at all. What should I do? - HCBBS Forum
32. What are the differences between the national standards for steel pipes GB 3087, 8163, 8162, and 12459? - HCBBS Forum
33. China’s independently developed ultra-deep desulfurization technology for gasoline has been successfully put into operation - HCBBS Forum
34. Welding of chromium-molybdenum alloy steel - HCBBS Forum
35. What should the pressure difference between the inlet and outlet of the syngas heat exchanger for the transformed feed gas be controlled at? - HCBBS Forum
36. Environmental Protection Daily Post 4.02: Reward for participation is 5 points, plus another 5 points for answering correctly - HCBBS Forum
37. How often is it normal to clean the copper tubes of the cooling units in an open-type cooling tower? (The equipment has been in use for 4.5 years.) - HCBBS Forum
38. proii simulates heat transfer oil, equation of state - HCBBS Forum
39. Using large amounts of circulating water for replenishment, without adding any chemicals – will this have an impact on the equipment? ? ? - HCBBS Forum
40. Where are the best places to produce centrifugal hydrogen circulators? - HCBBS Forum
41. Selection of flow meters for low-temperature methanol washing units - HCBBS Forum
42. Etherified gasoline and hydrogenated gasoline - HCBBS Forum
43. How to extract the parameters of two-phase flow in HYSYS separately - HCBBS Forum
44. Looking for information related to registered mechanical (equipment) engineers - HCBBS Forum
45. How to absorb carbon dioxide using ethanolamine? - HCBBS Forum
46. Separation process for converting coke oven gas into natural gas at Jizhong Energy Well and Mine Group - HCBBS Forum
47. The problem of variable ratio control for primary and secondary flow rates - HCBBS Forum
48. The role of nitrogen supplementation in the reflux tank of Luchi low-temperature methanol wash - HCBBS Forum
49. Sulfur slurry filtration issue - HCBBS Forum
50. 【 Alkylation 】 Alkylated oil heavy oil - HCBBS Forum
51. One Question per Day on Synthetic Ammonia (Series 5**) - HCBBS Forum
52. The role of MBR membranes in wastewater treatment - HCBBS Forum
53. 【Chemical Processing】Issues related to the compression of liquefied hydrocarbon gases - HCBBS Forum
54. Methanol section: One question per day. What is the reason for the increase in pressure in the synthesis tower? 2016.04.01 - HCBBS Forum
55. Sichuan Provincial Chemical Engineering Design Institute - HCBBS Forum
56. Selection of housing material - HCBBS Forum
57. For on-site installed surge protectors, how to choose between series and parallel types? - HCBBS Forum
58. Methanol section: One question per day. What are the reasons for the unsatisfactory water solubility of pure methanol? How to handle it? 2016.04.12 - HCBBS Forum
59. “Application scenarios of the “SUB-TF100 Fork-Type Level Controller” - HCBBS Forum
60. Discussion on the axial compressive stress problem of heat exchange tubes - HCBBS Forum
61. Flow distribution of the same pump - HCBBS Forum
62. Bernoulli equation velocity term problem - HCBBS Forum
63. Workplace risk assessment steps - HCBBS Forum
64. I need information on the *ao acid four-in-one unit - HCBBS Forum
65. Pickling and passivation of chromium-molybdenum steel - HCBBS Forum
66. One Question per Day, March 29, 2016 - HCBBS Forum
67. The issue of regression of Aspen thermodynamic parameters - HCBBS Forum
68. Where is the spring of design? - HCBBS Forum
69. Sulfur Daily Question, April 3rd------5 wealth for participation, 10 wealth for correct answers - HCBBS Forum
70. Issues with bearing seal covers - HCBBS Forum
71. How can the energy recovered from reducing high-pressure gas to low-pressure gas be utilized? - HCBBS Forum
72. How to determine the amount of steam required in a gas generation furnace based on the hydrogen content in semi-water gas - HCBBS Forum
73. The Yokogawa CS3000 operator station cannot silence the alarm sounds from other operator stations - HCBBS Forum
74. Ten Methods of Safety Education” - HCBBS Forum
75. Looking for mixer manufacturers - HCBBS Forum
76. Reviewing the Old to Discover the New (Series 4) - HCBBS Forum
77. Why should the **furan solution be slowly poured into a 100 mL beaker containing 80 mL of methanol while it is still hot** - HCBBS Forum
78. Hello everyone, I’ve changed careers! - HCBBS Forum
79. How to simulate heat exchange network integration using Aspen Energy Analyzer 7.3 - HCBBS Forum
80. I have waste sulfur here; I wonder if it can be used to produce sulfuric acid - HCBBS Forum
81. Dear sea friends, please introduce the manufacturers of ammonia escape meters and their usage - HCBBS Forum
82. Sign-in record post from April 5, 2016 - HCBBS Forum
83. 【Weekly Topic】【Engineering Version 20160401】 - HCBBS Forum
84. How to evaluate professional titles - HCBBS Forum
85. 【Alkylation】Requirements for the sulfur content of raw materials and conversion pathways in the alkylation process - HCBBS Forum
86. Regarding the SCR interlock scheme - HCBBS Forum
87. Enameled plate condenser - HCBBS Forum
88. Post #1577865
89. There’s a blockage in the feed channel of the plate and frame filter press – it’s a real headache! - HCBBS Forum
90. Selection of the mesh size for screen corrugated packing - HCBBS Forum
91. I seek expert advice: what are the functions and working principles of activators and anti-gelling agents in gasoline refining? - HCBBS Forum
92. What are the advantages of material heat exchangers in the production of natural fatty alcohols? - HCBBS Forum
93. Analysis of the reasons for diaphragm breakdown in diaphragm pumps - HCBBS Forum
94. Recruitment for process engineers; salary: 100,000–150,000 yuan - HCBBS Forum
95. Occupational Health Daily Question 4.9: Participate for a prize; 5 points for each correct answer, plus an additional 5 points - HCBBS Forum
96. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 487 - HCBBS Forum
97. Is a pH value of 5.9 for sulfuric acid wastewater discharge considered within the acceptable range? - HCBBS Forum
98. Information on the advantages and disadvantages of LNG process packages, or introductions to projects that are already in operation - HCBBS Forum
99. Tianjian, a polymerization inhibitor for the transportation of isobutylene gas - HCBBS Forum
100. Heat exchange issues in reaction vessels - HCBBS Forum