English — Forum #337 (Page 64/163)

1. Hexamethylenediamine process exchange - HCBBS Forum
2. What is the typical hydrogen sulfide content in the liquid separation tank at the inlet of the cyclohydrogen compressor? - HCBBS Forum
3. Does the Fuchs reaction fall under the category of hazardous processes that are subject to strict regulation? - HCBBS Forum
4. Do I need to consider explosion protection for 27.5% hydrogen peroxide? - HCBBS Forum
5. May I ask about the capacity of the accident emergency tank and the initial rainwater tank? Do they need to be entirely underground? What are the criteria for determining whether they can be built at the sewage treatment plant? - HCBBS Forum
6. When determining whether a multi-component mixture is suitable for separation by distillation, what aspects should be considered to ensure a comprehensive evaluation? - HCBBS Forum
7. May I ask what are the foreign alcohol engineering design companies? - HCBBS Forum
8. [Daily Question] Basic Process Knowledge (Multiple Choice) 20191108 - HCBBS Forum
9. [Daily Question] Basic Process Knowledge (True/False Questions) 20191119 - HCBBS Forum
10. Two-position valves used for safety interlock protection shall not be equipped with a handwheel mechanism - HCBBS Forum
11. The freezing point issue of vehicle urea - HCBBS Forum
12. Can liquid chemicals with Class A and B fire hazards from the tank area be directly added to the reaction vessel without using a high-level tank? - HCBBS Forum
13. In the main table of the design institute, there is an item titled “Street water supply and drainage”. Could someone experienced from the design institute please explain what this means? - HCBBS Forum
14. Mixed xylene MX and m-xylene MX - HCBBS Forum
15. Fuse installation and troubleshooting solutions - HCBBS Forum
16. Design of CNG station supply points - HCBBS Forum
17. Can tank truck loading and unloading operations be carried out on outdoor tanks in the workshop? - HCBBS Forum
18. Safety valve calculation - HCBBS Forum
19. Catalog of Special Equipment - HCBBS Forum
20. Industrial process technology for bisphenol S - HCBBS Forum
21. Diaphragm pump PID legend - HCBBS Forum
22. Truss design for tank roof - HCBBS Forum
23. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200306 - HCBBS Forum
24. Steam flow distribution problem - HCBBS Forum
25. dynamics equation - HCBBS Forum
26. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200310 - HCBBS Forum
27. In the pharmaceutical and chemical industry, if the length-to-diameter ratio of the explosion venting system in Class A workshops exceeds a certain value, does that necessarily mean it fails to meet the requirements? - HCBBS Forum
28. How is the flow velocity in a circular pipe calculated? - HCBBS Forum
29. Help needed - HCBBS Forum
30. I would like to ask about DCS alarm settings - HCBBS Forum
31. What are the main card and secondary card for Sinopec fuel cards? - HCBBS Forum
32. Can electric heat tracing be used in hydrogen production workshops or hydrogen-using workshops? - HCBBS Forum
33. Water hammer and vapor shock problems in the reactor jacket - HCBBS Forum
34. Safety valve calculation issues - HCBBS Forum
35. Questions regarding the setting of DCS alarm values - HCBBS Forum
36. Help solutions - HCBBS Forum
37. What does the vent wafer between the process flange and the sensing diaphragm teach? - HCBBS Forum
38. Do all PLC analog input channels require a safety isolation barrier? Will it have no impact if not done? (Grounding is proper) - HCBBS Forum
39. Does anyone have the process design for an annual production of 600,000 tons of coal-based methanol? It doesn’t need to be too detailed; a general outline of the process flow is sufficient - HCBBS Forum
40. Selection of hydrogen sulfide materials in acidic environments - HCBBS Forum
41. [Daily Question] Basic Process Knowledge (True/False: Fill in “√” for correct and “×” for incorrect) 2020.4.27 - HCBBS Forum
42. Emerson Pipe Tools - HCBBS Forum
43. Import structural model into PDMS - HCBBS Forum
44. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200224 - HCBBS Forum
45. I’m encountering severe overheating when using 32% nitric acid to adsorb organic substances with resin and then applying an alkali for desorption. What are some good solutions? - HCBBS Forum
46. Pipeline pressure drop calculation - HCBBS Forum
47. A dual-tube (balance tube) raw material conveying system is used; what does a dual-tube or balance tube look like? - HCBBS Forum
48. [Daily Question] Basic Process Knowledge (Multiple Choice) 20191225 - HCBBS Forum
49. Determination of design temperature for equipment and pipelines - HCBBS Forum
50. How to determine whether it is better to use a steam trap or a control valve and level gauge to maintain a certain liquid level in the steam condensate pipeline? - HCBBS Forum
51. Are there flame arresters and safety valves available with a fluorine-lined interior? What material should be used in corrosive environments with chlorinated exhaust gases? - HCBBS Forum
52. Hengli Petrochemical’s 3.2 million tons per year fluidized bed residue hydrocracking unit - HCBBS Forum
53. Emergency water supply for circulating cooling water - HCBBS Forum
54. Help: Olefin polymerization technology - HCBBS Forum
55. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200331 - HCBBS Forum
56. As shown in the figure, does the standard boiling point of a liquid in the solid volume gauge refer to the boiling point under working pressure? - HCBBS Forum
57. What methods can be used to separate and purify a mixture of methanol, ethanol, acetonitrile, and toluene? - HCBBS Forum
58. I am new to the catalytic regeneration system, please explain it to me! - HCBBS Forum
59. How to calculate the circulation flow rate of an external heat-type forced circulation evaporator - HCBBS Forum
60. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200325 - HCBBS Forum
61. Why is a subcooler needed? What is its function? - HCBBS Forum
62. Do you have a split cylinder at home? - HCBBS Forum
63. Help needed. Psa-co adsorbent reduction problem - HCBBS Forum
64. I once came across a post that said the flare would no longer be able to be used as a means for emergency emissions throughout the plant? - HCBBS Forum
65. Many project owners turn to patent holders to purchase process packages - HCBBS Forum
66. [Daily Question] Basic Process Knowledge (True/False Questions) 201912 10 - HCBBS Forum
67. To prevent exposure to the summer sun, should storage tanks be insulated or kept cool? - HCBBS Forum
68. Determination of the residual organic solvent content in the extracted aqueous phase - HCBBS Forum
69. Seeking advice on safety spacing for storage tanks in building codes - HCBBS Forum
70. Steel Platform Escalator Design Manual.pdf - HCBBS Forum
71. Brief overview of air separation operation problems and solutions 2(5) - HCBBS Forum
72. Seeking help with the liquid nitrogen vaporization process - HCBBS Forum
73. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200113 - HCBBS Forum
74. The relationship between the design pressure and the discharge pressure of a safety valve - HCBBS Forum
75. How are the pressure grades for pressure pipelines classified? That is, how to classify high-pressure pipes, medium-pressure pipes, and low-pressure pipes? - HCBBS Forum
76. reaction with water - HCBBS Forum
77. Adiabatic of the pump - HCBBS Forum
78. Can liquids with a flash point of less than 60°C not be fed into the incinerator for burning? - HCBBS Forum
79. How to calculate flow rate when there is a control valve in the pipeline? - HCBBS Forum
80. Help: Eliminate white smoke - HCBBS Forum
81. Everyone, take a look – is there any liquid flow inside the sealed sampler? - HCBBS Forum
82. What is the purpose of adding acid to ethylene oxide? - HCBBS Forum
83. I would like to ask what the difference is between a leakage test and a airtightness test - HCBBS Forum
84. Control of design nodes - HCBBS Forum
85. Seeking guidelines for the process design of the SDEP-SPT-PE2009 safety pressure relief system - HCBBS Forum
86. What are the methods for draining liquid after separation in a reaction kettle? - HCBBS Forum
87. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200120 - HCBBS Forum
88. How to understand the principle of local management for work safety - HCBBS Forum
89. Gas heater ignition device - HCBBS Forum
90. How should wastewater containing 10%–20% DMF, along with small amounts of dichloroethane and toluene, be treated? - HCBBS Forum
91. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200317 - HCBBS Forum
92. Technical analysis of the production process for industrial adipic acid - HCBBS Forum
93. Conversion between solution specific gravity, density, and solid content - HCBBS Forum
94. I have collected various picture albums on computing books; those who need them can leave their email address. - HCBBS Forum
95. May I ask whether magnetic flap valves can be used for sulfuric acid storage tanks, which are flammable and explosive storage tanks? What to do about bottom leakage? - HCBBS Forum
96. Steam pipeline Design pressure: full vacuum - HCBBS Forum
97. Propylene oxide production process, with flowchart included - HCBBS Forum
98. I was wondering if the more experienced colleagues could share with me the e-book on hydrogenation processing technology and engineering. I would be extremely grateful; thank you - HCBBS Forum
99. Seeking suppliers for the design of methane chloride plants and equipment supply - HCBBS Forum
100. Technology for producing propane from methane as a raw material - HCBBS Forum