English — Forum #337 (Page 14/163)

1. Heat exchanger manufacturing - HCBBS Forum
2. Storage of dibromoethane - HCBBS Forum
3. Does the production of polyphenylene sulfide fall under polymerization processes? - HCBBS Forum
4. May I ask if a tank containing tar, such as an oil separator or air flotation tank, can be installed inside a room (factory building)? ? ? - HCBBS Forum
5. 【Daily Topic】【HVAC Version 20170416】 - HCBBS Forum
6. 【Weekly Topic】【Storage & Transportation Version 20170107】 - HCBBS Forum
7. Issues related to medium treatment in process pipelines - HCBBS Forum
8. Where can I buy the association’s books? - HCBBS Forum
9. Process design - HCBBS Forum
10. Process Section – Daily Hydrogenation Process Knowledge Question No. 045 - HCBBS Forum
11. 【Daily Question】 【AC Version for Static Equipment...Question 61】 March 2, 2019 – Revised multiple-choice questions...Everything is going well - HCBBS Forum
12. The atmospheric temperature is 30 degrees and the relative humidity is 70%. What is the water content in mg/m3? ! - HCBBS Forum
13. Hazard source classification Value assignment issue - HCBBS Forum
14. The thermal expansion displacement is large; is it possible to install 2 expansion joints on the pipeline? - HCBBS Forum
15. Operating specifications for nitrogen storage tanks in power stations - HCBBS Forum
16. Come and claim it! Come and claim it quickly~ The Craft Area is offering high-temperature allowances, and everyone here can get one! ! ! - HCBBS Forum
17. Calculation of emergency discharge volume for atmospheric and low-pressure storage tanks - HCBBS Forum
18. Reformation hydrogen-to-oil ratio issue - HCBBS Forum
19. Wastewater recycling - HCBBS Forum
20. Fire hazard classification of ethylene glycol refrigerators - HCBBS Forum
21. Cooling of cryogenic reactors - HCBBS Forum
22. How to remove chlorides from sodium nitrate to the greatest extent possible - HCBBS Forum
23. Knowledge sharing on moving bed vaporizers - HCBBS Forum
24. 【Ten Years of Rapid Development in Chemical Equipment】From 2018 to 2024, Liaoyang Petrochemical achieved domestication of the entire production chain for PETG copolyesters, from raw materials to finished products, through technological innovation - HCBBS Forum
25. Seeking advice from experienced drivers - HCBBS Forum
26. Relevant design standards for preventing burns in high-temperature process pipelines - HCBBS Forum
27. Petrochemical Design Manual, Revised Edition, Volume 2: Standards and Specifications - HCBBS Forum
28. Which is more expensive, ethylene or acetylene? - HCBBS Forum
29. Calculation of VOC emissions from storage tanks and nitrogen volume for nitrogen sealing - HCBBS Forum
30. How should one deliver items when doing business? Can it only be sent out then? Are there any tips? - HCBBS Forum
31. Selection and application of materials - HCBBS Forum
32. How to reduce the hazards of power harmonics from variable-frequency power supplies and the protective structures involved - HCBBS Forum
33. 【Daily Question】 【AC Version for Static Equipment...Question 83】 March 24, 2019 – Revised multiple-choice questions...Everything is going well - HCBBS Forum
34. 【Ten Years of Rapid Development in Chemical Equipment】China’s largest production facility for organic phase-change energy storage materials came online between 2090 and 2024 - HCBBS Forum
35. Must a micro-positive pressure nitrogen-sealed storage tank be equipped with a safety valve? - HCBBS Forum
36. Problems with the limiting frame - HCBBS Forum
37. 【Daily Topic】【Engineering Version 20170104】 - HCBBS Forum
38. For exhaust gas treatment, is it better to use a fan connected by a belt or a fan with a direct connection? - HCBBS Forum
39. How should a steam tracing piping diagram be drawn? ? What is the minimum diameter that a heat tracing tube can have? ? - HCBBS Forum
40. Does anyone have a graduation project template for synthesizing ammonium bicarbonate? - HCBBS Forum
41. What are the process technologies for the pretreatment of hydrogen production from coke oven gas? - HCBBS Forum
42. Steam calculation - HCBBS Forum
43. Can the equipment port orientation diagram be represented in a top view without detailed drawings? - HCBBS Forum
44. Comparison of dichloroethane cracking technologies - HCBBS Forum
45. 【Daily Question】 【AC Version for Static Equipment...Question 84】 March 25, 2019 – Revised multiple-choice questions...Everything is going well - HCBBS Forum
46. [Daily Question] Basic Process Knowledge (True/False Questions) 20190904 - HCBBS Forum
47. Guys, when calculating mass transfer processes with limited mass transfer, how do we determine the gas-liquid mass transfer coefficient? - HCBBS Forum
48. Why is ammonia from SCR denitration mixed with air? - HCBBS Forum
49. How to calculate the initial velocity in a free-fall pipeline - HCBBS Forum
50. 【Haichuan Equipment Guessing Game】Gentlemen, take a look – what kind of amazing device is this? - HCBBS Forum
51. Gasoline Hydrogenation SIS - HCBBS Forum
52. 【Common Issues in Haichuan Pipeline Design】--Which media require closed-loop sampling - HCBBS Forum
53. How to separate water from exhaust gases - HCBBS Forum
54. I need help installing a device outside the pipeline - HCBBS Forum
55. Question: What type of facility should a workshop that uses phosphoric acid be classified as? Class V? - HCBBS Forum
56. Control of design nodes - HCBBS Forum
57. Air compressor selection issues - HCBBS Forum
58. What do you do regarding trenches, drainage ditches, and pipe trenches in factory buildings where flammable gases that are heavier than air may accumulate? - HCBBS Forum
59. Freezing points of bisphenol A solutions at various concentrations - HCBBS Forum
60. An antioxidant needs to be added to the ethylene glycol solution of PEG2000 - HCBBS Forum
61. Pipe roughness - HCBBS Forum
62. What types of storage tanks are prohibited from being buried? - HCBBS Forum
63. Answers to questions on flue gas desulfurization technology - HCBBS Forum
64. Crude benzene unloading device - HCBBS Forum
65. What are the fire hazard categories for ammonia nitrogen stripping and steam stripping? Can it be placed together with the hydrogen peroxide storage tank? - HCBBS Forum
66. 【Weekly Topic】【Electrical Edition 20170115】 - HCBBS Forum
67. 【Daily Topic】【Production Version 20170101】 - HCBBS Forum
68. Is the air separation design designed for explosion-proof or non-explosion-proof use? - HCBBS Forum
69. Is a steam temperature and pressure reduction device necessary? - HCBBS Forum
70. [Daily Question] Basic Process Knowledge (Multiple Choice) 20190224 - HCBBS Forum
71. For a storage tank containing an aqueous solution with about 50% methanol, placed outdoors and with feed at a certain temperature, is insulation necessary? - HCBBS Forum
72. May I ask which manual or calculation document the calculations for the following spray towers are based on? Extra points for high scores, please - HCBBS Forum
73. Siphon pipe flow interruption - HCBBS Forum
74. 2021 List of Top 100 Suppliers in the Petroleum and Chemical Industry - HCBBS Forum
75. In a kettle-type reactor with an internal coil, why is the temperature at the outlet of the coil lower than the temperature in the kettle? - HCBBS Forum
76. Internet-famous snowflake cake (my version) - HCBBS Forum
77. How do I write a description for a safety relief system? - HCBBS Forum
78. Would you like to add a jacketed cooler to the exhaust pipe? Are such coolers available for sale? - HCBBS Forum
79. Three-stage injection: The connection between power steam pumps and liquid ring pumps - HCBBS Forum
80. 【HaiChuan Explores the World】Ancient Chinese drainage systems - HCBBS Forum
81. Organic waste gas is purified through adsorption treatment; a fan with a flow rate of 2000 and a pressure rating of 4000 Pa is selected. Why is the actual flow rate only around half of that, and unable to reach the desired level? - HCBBS Forum
82. What is the best cooling method for cooling solid raw materials or products? - HCBBS Forum
83. Could you please tell me how much 1 ton of circulating water and chilled water (including chilled brine) costs at your factory? Indicate the area where it is located - HCBBS Forum
84. The 16th Zhuang Changgong and Wu Yunchu Award for Advancement in Chemistry and Chemical Engineering was presented at the Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences - HCBBS Forum
85. Pipeline Design Software V2.0 Official Version - HCBBS Forum
86. I have a question regarding the heat release during steam liquefaction - HCBBS Forum
87. Zhejiang Zhoushan Project to Build a 1,000-ton-scale Pilot Plant for Polyolefin Elastomers (POE) - HCBBS Forum
88. The child’s graduation project! ! - HCBBS Forum
89. Approaches and steps for process package development - HCBBS Forum
90. I’m asking experts in MIP catalytic cracking: what type of fluidized bed does the riser belong to, and the same for the secondary riser? - HCBBS Forum
91. 【Weekly Topic】【Production Version 20170107】 - HCBBS Forum
92. 【Ten Years of Rapid Development in Chemical Equipment】2013–2024 Industrial Demonstration Project for Dimethyl Sulfide Production via Methyl Sulfide-Hydrogen Peroxide Oxidation Method - HCBBS Forum
93. I need help calculating the secondary condenser for distillation or rectification - HCBBS Forum
94. What is dimethylformamide? - HCBBS Forum
95. What is Dingtongoxime? Is dingtongoxime toxic? - HCBBS Forum
96. Water cooling - HCBBS Forum
97. When testing pipeline sections individually, do the valves, whether open or closed, also undergo testing along with that particular section of pipeline? - HCBBS Forum
98. May I ask what is the typical filling pressure for ton-scale gas cylinders? - HCBBS Forum
99. Why does tar vacuum exhaust contain sulfur dioxide and carbon monoxide? - HCBBS Forum
100. What are the common centrifuge devices used in pharmaceutical production? - HCBBS Forum