English — Forum #337 (Page 66/163)

1. Steam condensate pipeline setup - HCBBS Forum
2. How is the price for the technology transfer of the process package determined? - HCBBS Forum
3. [Daily Question] Basic Process Knowledge (True/False Questions) 201912 4 - HCBBS Forum
4. Selection of the diameter for the bypass pipe to prevent freezing in circulating water pipelines during winter? - HCBBS Forum
5. Relationship between circulating hydrogen volume and reaction temperature - HCBBS Forum
6. During the commissioning phase of fluidized bed gasification, how should unqualified gas be handled? Discharge it directly – if the oxygen content is high, can it be sent to the flare? - HCBBS Forum
7. What should be considered when using silicon carbide in steelmaking? - HCBBS Forum
8. Water ripple annular groove sealing surface - HCBBS Forum
9. [Daily Question] Basic Process Knowledge (Multiple Choice) 20191106 - HCBBS Forum
10. I came up with a process and sought advice on its feasibility. - HCBBS Forum
11. Those who are involved are welcome to join the discussion - HCBBS Forum
12. Looking for the correspondence table between the saturated vapor pressure and temperature of pure toluene, thanks???? - HCBBS Forum
13. High nozzle pressure - HCBBS Forum
14. 141- Application of feather leaf separation and multi-factor swirl parent-child separation technologies and equipment in acetylene production and purification for PVC projects - HCBBS Forum
15. Design heat exchangers - HCBBS Forum
16. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200401 - HCBBS Forum
17. Spacing between buried tanks - HCBBS Forum
18. What does the character “ and” mean here? - HCBBS Forum
19. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200301 - HCBBS Forum
20. The issue of replacing filler metal materials in welding procedure qualification - HCBBS Forum
21. [Daily Question] Basic Process Knowledge (True/False Questions) 20191121 - HCBBS Forum
22. Is there any amino protection technology that has been industrialized in the world at present? - HCBBS Forum
23. Hydrocracking Unit Technical Q&A (2nd Edition) Cloud Disk - HCBBS Forum
24. I have some questions regarding the \"HG/T 20680-2011 Specifications for Process Calculations in Boiler Room Design\" - HCBBS Forum
25. Purchase request: Ethylene process package - HCBBS Forum
26. What is the difference between graphite carbonizers and semi-graphite carbonizers? - HCBBS Forum
27. The issue with the temperature of the condensate pump - HCBBS Forum
28. Desulfurization design - HCBBS Forum
29. Water treatment - HCBBS Forum
30. [Daily Question] Basic Process Knowledge (True/False Questions) 201912 3 - HCBBS Forum
31. Help! Conversion between standard cubic volume of gas and mass - HCBBS Forum
32. How to calculate the flow rate and number of spiral nozzles (atomization) - HCBBS Forum
33. For a pipe with two outlets, when pressure rises, one outlet is opened to maintain stable pressure, while the flow rate at the other outlet decreases - HCBBS Forum
34. [Daily Question] Basic Process Knowledge (Multiple Choice) 20191227 - HCBBS Forum
35. Solubility of hydrogen sulfide - HCBBS Forum
36. Seeking advice on the stirring method for reaction vessels - HCBBS Forum
37. Help with the simple process flow - HCBBS Forum
38. Fan selection, air volume calculation - HCBBS Forum
39. Insulated flange - HCBBS Forum
40. Regarding pressure pipelines and pressure vessels - HCBBS Forum
41. Is the equipment list in A3 or A4 format? - HCBBS Forum
42. What's the matter with the redness caused by benzene acid washing color comparison? - HCBBS Forum
43. [Daily Question] Basic Process Knowledge (True/False Questions) 20191219 - HCBBS Forum
44. Basic Process Knowledge (True/False Questions: Fill in “√” for correct answers and “×” for incorrect ones) May 26, 2020 - HCBBS Forum
45. I need help – what are the abbreviations for MF and ML? - HCBBS Forum
46. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200216 - HCBBS Forum
47. Critical maximum temperature difference - HCBBS Forum
48. Issues to be noted when using steel-making cored wires - HCBBS Forum
49. The effect of pressure within the system on material velocity - HCBBS Forum
50. Is it necessary to insert the feed pipe for the reactor solvent (methanol) to the bottom? ? ? - HCBBS Forum
51. Is the heat release when preparing a 30% solution of solid sodium hydroxide in water the same as that when diluting a 60% sodium hydroxide solution to obtain a 30% solution of the same mass? - HCBBS Forum
52. Noise in hydraulic transmission systems and countermeasures - HCBBS Forum
53. Can Fenton reagent denitrate? - HCBBS Forum
54. Adiabatic flashing Isothermal flashing - HCBBS Forum
55. When the heat transfer oil becomes deteriorated and needs to be replaced, is it necessary to steam-clean and purge the existing pipelines? - HCBBS Forum
56. Problems with the preheating reboiler. - HCBBS Forum
57. What is the difference in calorific value between coke dust and coke? - HCBBS Forum
58. Exploration of approaches for the resource utilization of SDS flue gas desulfurization ash from the Naki dry process - HCBBS Forum
59. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200124 - HCBBS Forum
60. The oil field production fluid contains 5,000–8,000 ppm of hydrogen sulfide; the operating pressure is 9 MPa, the operating temperature is 280°C, and the design pressure is 10.8 MPa - HCBBS Forum
61. How to clean surface sizing residue? - HCBBS Forum
62. [Daily Question] Basic Process Knowledge (True/False Questions) 201912 16 - HCBBS Forum
63. Why are there two controls for the air fan here? - HCBBS Forum
64. Design of 100 cubic meter methanol storage tank - HCBBS Forum
65. What should be the flux when using a ceramic membrane ultrafiltration filter for river water? Can it be backwashed with water? - HCBBS Forum
66. Have you seen the bizarre design of this type of pump? - HCBBS Forum
67. Requirements for the layout on top of the pipe gallery - HCBBS Forum
68. [Daily Question] Basic Process Knowledge (Multiple Choice) 20191026 - HCBBS Forum
69. [Daily Question] Basic Process Knowledge (True/False Questions) 201912 7 - HCBBS Forum
70. The digital factory and physical factory of the refining and chemical plant are constructed and delivered simultaneously. - HCBBS Forum
71. [Daily Question] Basic Process Knowledge (Multiple Choice) 20191104 - HCBBS Forum
72. What is the standard used for classifying electrical explosion-proof hazard areas? - HCBBS Forum
73. Pressure vessel nozzle thickness - HCBBS Forum
74. Ethylene cracking - HCBBS Forum
75. Why do solid substances also have a flash point? - HCBBS Forum
76. Hydrogen peroxide pipeline installation - HCBBS Forum
77. Help – Calculation of mixed density - HCBBS Forum
78. Quick facts about spunbond non-woven fabrics - HCBBS Forum
79. How should a nearly saturated solution of hydrazine hydrate containing a small amount of methanol be treated? - HCBBS Forum
80. What are the technical parameters of the on-site testing device for current transformers? - HCBBS Forum
81. Solution of the hydrogen chloride drying process flow - HCBBS Forum
82. Graduation thesis on chemical engineering processes - HCBBS Forum
83. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200229 - HCBBS Forum
84. Raw oil pretreatment - HCBBS Forum
85. Treatment of wastewater containing nitric acid - HCBBS Forum
86. Material selection for concentrated phosphoric acid reaction vessels - HCBBS Forum
87. Regular inspection of fixed pressure vessels - HCBBS Forum
88. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200215 - HCBBS Forum
89. How can one determine whether the salts produced by chemical plants are by-products, ordinary solid waste, or hazardous solid waste? - HCBBS Forum
90. Calculation of heat of mixing for sulfuric acids at different concentrations - HCBBS Forum
91. [Daily Question] Basic Process Knowledge (True/False) 20191129 - HCBBS Forum
92. What is process design? Is there an exact definition? - HCBBS Forum
93. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200207 - HCBBS Forum
94. Does the chlor-alkali industry produce sodium hypochlorite? Sodium hydroxide must be at the anode; then what is at the cathode?... - HCBBS Forum
95. What are some good solutions for internal leakage in valves on the boiler water pipeline? - HCBBS Forum
96. Brief analysis of the sulfur-based acid production process, with a flowchart! - HCBBS Forum
97. Is the fire hazard of sodium sulfide classified as Class A? - HCBBS Forum
98. [Daily Question] Basic Process Knowledge (Multiple Choice) 20200226 - HCBBS Forum
99. The company produces some oxygen and hydrogen in-house; aside from using it for its own needs, there is a surplus amount. What are the usual procedures required if this surplus is to be sold? - HCBBS Forum
100. Is it necessary to have specific qualifications to conduct HAZOP/LOPA analyses for enterprises? - HCBBS Forum