English — Forum #723 (Page 257/642)

1. When desulfurizing coal-fired boilers, which method is more suitable for widespread use: ammonia-based desulfurization or calcium-based desulfurization? - HCBBS Forum
2. Haichuan Freelancer = Taobao for people from Haichuan - HCBBS Forum
3. Screw air compressor current overload - HCBBS Forum
4. Regarding the leakage of the mechanical seal flushing water - HCBBS Forum
5. Air compressor shaft displacement - HCBBS Forum
6. Polypropylene chiller maintenance - HCBBS Forum
7. Differences in startup between shell-and-tube heat exchangers and plate heat exchangers - HCBBS Forum
8. Issues regarding the detection of VOCs from fixed sources - HCBBS Forum
9. English in the process property table - HCBBS Forum
10. Recommended List of Instrument Procurement Manufacturers - HCBBS Forum
11. 【Picture of the Day】2016 05 23 Do you know what the insulation material used for the valve body in this image is? - HCBBS Forum
12. Seek help: technologies for efficient biogas production from alcoholic waste liquor, and technologies for efficient hydrogen production from biogas - HCBBS Forum
13. Can double-acting valves be used for the emergency shut-off valves in the tank farm pipelines? - HCBBS Forum
14. Is it necessary to collect seal oil when starting up the heat integration system catalytically? ? If the pump for water intermodal transport is started at this time, how can the pump’s seal be ensured? ? - HCBBS Forum
15. Chlorine absorption - HCBBS Forum
16. Do any of you work at Yanshan Petrochemical? Our company is planning to go for an inspection; please provide the route! - HCBBS Forum
17. Regarding the failures of steam injectors - HCBBS Forum
18. Gas design: 3-year station project, seeking a buyer - HCBBS Forum
19. Problems in the production of 17-17-17 chlorinated high-nitrogen compound fertilizers - HCBBS Forum
20. Looking for CAD drawings for PVC polymerization reactors, distillation towers, and cyclone dryers produced by the suspension method - HCBBS Forum
21. I’ve never seen these abbreviations for English flanges; please ask an expert for help - HCBBS Forum
22. 【Help】Safe distance for items around indoor fire hydrants - HCBBS Forum
23. What are the main aspects inspected during on-site quality management checks? - HCBBS Forum
24. Analysis and Forecast of Calcium Carbide Price Trends as of May 27 - HCBBS Forum
25. Recruiting electricians and instrument technicians for coking plants - HCBBS Forum
26. How should small-scale pure water treatment devices be maintained? ? ? ? - HCBBS Forum
27. Sign-in record post from May 23, 2016 - HCBBS Forum
28. One Question per Day on Synthetic Ammonia (Series 96) - HCBBS Forum
29. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； May 27th - HCBBS Forum
30. Unusual noises from a reciprocating compressor? ? Could the experts please analyze this for me? - HCBBS Forum
31. Shanghai ASPENTECH is recruiting chemical software testing engineers - HCBBS Forum
32. It’s not easy to find a job as an instrument technician, but don’t take advantage of my youth - HCBBS Forum
33. Various symptoms indicate excessive aeration, but the DO in the aerobic tank is below 1 mg/L, with only the end section reaching 3 mg/L - HCBBS Forum
34. Principle and structure of DIB-1 - HCBBS Forum
35. Laboratory mixing tank - HCBBS Forum
36. Do you know anything about the fragrance industry? Please come in - HCBBS Forum
37. Aspen simulated moving bed reactor - HCBBS Forum
38. Detection of toxic gases at the plant boundary - HCBBS Forum
39. Problems with the control panel in Aspen - HCBBS Forum
40. What are the level gauges that use the mass of the material (gravity) as a basis for conversion? - HCBBS Forum
41. Why must the oxygen content in the system be below 0.5% when a nitrogen cycle is established in the hydrogenation unit? - HCBBS Forum
42. Seeking help with the testing of demulsifying ability of gasoline detergent - HCBBS Forum
43. Treatment of phenol-containing wastewater from insulation material factories using centrifugal extractors - HCBBS Forum
44. Bored from shift work, want to open a factory - HCBBS Forum
45. What are the operation steps for adjusting the float level gauge reading of HART475 according to the glass plate indication? - HCBBS Forum
46. Does anyone in the Caesar material database have the HP40 material? - HCBBS Forum
47. Selection of sludge pumps for sedimentation tanks - HCBBS Forum
48. In-depth article ‖ An overview of residue hydrogenation units and their operational principles; worth saving! - HCBBS Forum
49. Case Analysis (23): Are they suffering from work-related injuries? - HCBBS Forum
50. SH/T 1789-2015 Chinese name: Industrial Pyrolyzed C5 - HCBBS Forum
51. If there is a leak in the tubes of a shell and tube heat exchanger, what methods can be used to repair it and prevent further leaks? - HCBBS Forum
52. Help! Separation of ethylene and acetylene. - HCBBS Forum
53. What is the boiling point of toluene at different pressures? - HCBBS Forum
54. 【Daily Topic】【Civil Engineering Version 20160522】 - HCBBS Forum
55. 【Daily Question】Deep Processing 20160522 Multiple Choice: The characteristic of ammonia synthesis production is: ( ) - HCBBS Forum
56. Can the catalytic main fan (including the standby unit) dry the furnace and the flue gas pipeline linings? - HCBBS Forum
57. Another achievement for \"Made in China\" in methanol production: domestic production of large-scale methanol gas-cooled reactors - HCBBS Forum
58. Excessive steam pressure in the ammonia vaporization tower - HCBBS Forum
59. Have you heard of Pagoda International Petrochemical Engineering Technology Co., Ltd.? - HCBBS Forum
60. 【Come translate when you’re free 01】--What does it mean to pretend? - HCBBS Forum
61. Issues with shared vapor pipelines for vapor recovery in storage tanks - HCBBS Forum
62. Seek the code: Design Code for LNG Receiving Stations GB51156-2015 - HCBBS Forum
63. Start switch valve control mode - HCBBS Forum
64. Sign-in record post from May 22, 2016 - HCBBS Forum
65. How to maintain plate heat exchangers - HCBBS Forum
66. What are the differences between these lubrication methods? - HCBBS Forum
67. Who is familiar with butene oligomerization units? - HCBBS Forum
68. Why does a white precipitate form when sulfuric acid is added to the alkali wash supernatant? - HCBBS Forum
69. One Question per Day on Synthetic Ammonia (Series 98) - HCBBS Forum
70. About emergency phone numbers - HCBBS Forum
71. Coal-based fuel gas - HCBBS Forum
72. Is the R2 license exam easy? - HCBBS Forum
73. 【Haichuan Freelancer】Advertising Copywriting Contest (Reply +5 Wealth) - HCBBS Forum
74. Differential pressure flow meter - HCBBS Forum
75. Instrument data of self-acting control valve - HCBBS Forum
76. One question per day on occupational health – May 18: Participate for a prize; 3 correct answers and you’ll get another prize - HCBBS Forum
77. How to calculate the amount of hydrogen that can be produced from one ton of liquid ammonia, and what is that amount? - HCBBS Forum
78. It’s not very popular - HCBBS Forum
79. How can electroplating wastewater be treated to ensure that the nickel levels are within acceptable limits? - HCBBS Forum
80. Are there any standards I can refer to for determining the number of supporting legs? - HCBBS Forum
81. Dynamic reactor simulated by Aspen - HCBBS Forum
82. Calculation of water spray cooling dimensions - HCBBS Forum
83. 【Daily Question No. 180】May 20, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
84. Which specification outlines the pressure tolerance ranges for various types of storage tanks? ? Urgent! Urgent! Urgent! ! ! - HCBBS Forum
85. Horizontal sack pump for hydrogen feed (Sulzer) - HCBBS Forum
86. Advantages and disadvantages of plate heat exchangers - HCBBS Forum
87. What type of steel is ST35.8.1? What is its thermal conductivity? - HCBBS Forum
88. Is explosion protection required around pipes carrying Class A substances? ? ? Urgent! Urgent! Urgent! ! ! - HCBBS Forum
89. Process calculation for continuously operating stirred-tank reactors - HCBBS Forum
90. 【Daily Judgment NO.16】May 24, 2016 - HCBBS Forum
91. One Question per Day on Synthetic Ammonia (Series 97) - HCBBS Forum
92. Six safety tips for storing hazardous items in summer - HCBBS Forum
93. Prepare emergency response plans, handle registration for hazardous materials, and provide consultation on safety standardization - HCBBS Forum
94. For corrosion by sulfuric acid an and ammonia water, which offers better results when using inexpensive materials? - HCBBS Forum
95. Simulation of side reactions in reactors - HCBBS Forum
96. High-temperature mechanical properties of steel plates - HCBBS Forum
97. I haven’t been here for months; it’s changed so much - HCBBS Forum
98. The allowable tensile strain for reusing bolts after long-term use - HCBBS Forum
99. Inspection test pressure for air cooler - HCBBS Forum
100. 【Daily Question】2016 05 19 Hydrogenation Section Multiple-choice Question The hot oil circulation in the distillation system can make use of kerosene and... - HCBBS Forum