English — Forum #337 (Page 33/163)

1. Our company can provide various type of personnel certificates for enterprises seeking to obtain new qualifications, upgrading from level 3 to 2, from level 2 to 1, or from level 1 to the top tier - HCBBS Forum
2. The condensate from the heat exchangers in the maleic anhydride plant is fed into demineralized water - HCBBS Forum
3. Gasification process flow and material balance diagram - HCBBS Forum
4. Share the SW plate exchange model. I hope it will be helpful for everyone’s learning* - HCBBS Forum
5. Measurement interface of magnetic flap level gauge - HCBBS Forum
6. I have limited space; is it acceptable to have a clear distance of less than 100 between the pumps? - HCBBS Forum
7. Does anyone here know anything about the standards for dehydrogenation treatment? - HCBBS Forum
8. Anti-static grounding brush for motor belts - HCBBS Forum
9. Let’s talk about the leakage issue with RSB gaskets. - HCBBS Forum
10. Why are metal hoses used to connect the inlet and outlet of process storage tanks? - HCBBS Forum
11. When adding activated carbon powder, do we need to consider powder explosion-proof issues in the factory? - HCBBS Forum
12. What tests do construction units of finished pressure vessels need to do? - HCBBS Forum
13. Consulting on the design and selection of high and low pressure lubrication stations for LNG projects - HCBBS Forum
14. Practical Handbook for Refrigeration Engineering Design – Edited by Guo Qingtang - HCBBS Forum
15. How do I write a description for a safety relief system? - HCBBS Forum
16. I have a question: in oxidation reactions involving potassium permanganate, how should it be added? - HCBBS Forum
17. Question: Heating and cooling design issues for the wax liquid tank - HCBBS Forum
18. Chemical Process Design Handbook (Fifth Edition) Volume 1 - HCBBS Forum
19. Help! Issues with boiler operation; seeking expert advice urgently! ! ! - HCBBS Forum
20. There are fire separation requirements between the two Class A factories; is it possible to establish a road passage between them? - HCBBS Forum
21. How can we confirm that the amount of exhaust gas being treated is 500 cubic meters per hour? - HCBBS Forum
22. Regarding the heat transfer coefficient K values under various operating conditions of the reaction vessel - HCBBS Forum
23. Registered Chemical Engineer Professional Examination – Past Exam Questions and Answer Explanations - HCBBS Forum
24. All pneumatic valves are equipped with AT-type reply device APL-410N. Can this be omitted? - HCBBS Forum
25. How to quickly batch-name PDF single-line diagrams - HCBBS Forum
26. For safety valves on steam and compressed air pipelines, should spring-loaded full-lift safety valves with wrenches be selected? - HCBBS Forum
27. Regarding the axonometric diagram of the pipeline, how is the coordinate system determined? How is the north direction determined in the design north and axonometric views? ” - HCBBS Forum
28. What type of container should be used to store benzoic acid? - HCBBS Forum
29. \"Management of Documentation for Surface Construction Projects in Oil and Gas Fields\" - HCBBS Forum
30. Which type of heat exchanger is suitable for using 6 kg of saturated steam to indirectly heat 1 kg of saturated steam so that it becomes superheated steam? - HCBBS Forum
31. Should the inlet and outlet of the process tank be equipped with flexible connections? - HCBBS Forum
32. Is wastewater that may produce chlorine gas considered to belong to Category A installations? Are explosion and fire prevention considerations necessary from a safety perspective? Are there any guidelines? - HCBBS Forum
33. Regarding the filter cake - HCBBS Forum
34. Is it possible to use carbon steel for corrosion protection in ozone oxidation towers? What kind of anti-corrosion coating would be good to use? - HCBBS Forum
35. Conditions for the installation of intermediate storage tanks - HCBBS Forum
36. What could be the reasons for a large amount of water to be discharged by the fans during winter when VOCS organic waste gases are being adsorbed? - HCBBS Forum
37. Emergency shut-off valve - HCBBS Forum
38. PID diagram pipe number - HCBBS Forum
39. Do the engineering documents prepared according to 3503/3543 lack inspection batches? - HCBBS Forum
40. How to speed up the emptying rate of the heavy materials at the bottom of the tower - HCBBS Forum
41. How should clause 5.2.22 of the petrochemical regulations be understood – namely that if the total volume of flammable liquids in the storage tanks of a facility is less than 1,000 cubic meters, such tanks can be located within the facility? - HCBBS Forum
42. How is the discharge capacity of the safety valve in the synthetic methanol process determined? - HCBBS Forum
43. A DCS isolation valve is installed at the outlet of the liquid chlorine storage tank; is it necessary to add an SIS isolation valve as well? - HCBBS Forum
44. Is there a sampling valve designed specifically for collecting small solid particles such as resin? - HCBBS Forum
45. On the impact of non-condensable gases on condensation efficiency - HCBBS Forum
46. ANSI B36.10 Chinese Version - HCBBS Forum
47. Are there regulations in Class A workshops that prohibit the use of plastic containers? Are there any solutions for fire protection requirements? For example, what about applying a fire-retardant coating to the outer surface of plastic? - HCBBS Forum
48. Difference between the red line on the pressure gauge in front of the safety valve and the set value of the safety valve - HCBBS Forum
49. Who has the drawings for an ozone generator? Urgently needed, thank you - HCBBS Forum
50. Manual on Production Technologies for Fine Organic Chemical Products [Edited by Han Chang-ri and Song Xiaoping], 2010 edition - HCBBS Forum
51. A calculation problem involving temperature increase - HCBBS Forum
52. How should water distribution be arranged at the inlet of an inclined tube sedimentation tank to prevent the sludge from floating? - HCBBS Forum
53. PFD sulfate - HCBBS Forum
54. Complete sets of equipment usually come equipped with control cabinets; is it compliant to place them in Class A or Class B workshops? - HCBBS Forum
55. How to achieve rapid solid-liquid separation of a mixture of micron-sized aluminum powder and water? - HCBBS Forum
56. Report on accident root cause analysis - HCBBS Forum
57. MSteel wire cutting optimization software - HCBBS Forum
58. 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
59. How is the packing volume of a spray tower calculated? How much moisture can be obtained from the demister? - HCBBS Forum
60. I’ve just arrived at the methamine plant and am currently learning*; I’d appreciate some guidance from those with more experience - HCBBS Forum
61. Problems with the Storage of Sodium Hypochlorite - HCBBS Forum
62. May I ask about the methanol content in the steam produced by purging with 0.3 MPa steam at around 0.1 MPa and 120 degrees Celsius? - HCBBS Forum
63. Why does the temperature drop to 148 when 99% pure hydrogen at 170℃ is mixed with *** at 190℃℃ - HCBBS Forum
64. Does the acid-resistant stone used in the nitric acid tank area of our factory meet the standards? - HCBBS Forum
65. Spacing between equipment within the device - HCBBS Forum
66. Does anyone have the electronic versions of these two books "Ethylene Equipment" and "Pipeline Equipment Selection and Engineering Application" - HCBBS Forum
67. Are ordinary contracting qualifications sufficient for using methanol storage tanks and pipelines in wastewater treatment? Are there any special qualification requirements? - HCBBS Forum
68. Calculation formula for pressure testing blind flanges - HCBBS Forum
69. Is hydrogen fluoride heavier or lighter than air? - HCBBS Forum
70. AQT 3034-2022 Guidelines for Safety Management of Chemical Process Operations - HCBBS Forum
71. Aspen property method - HCBBS Forum
72. CAD drawing design for reaction vessels - HCBBS Forum
73. On the relationship between vapor pressure and pressure - HCBBS Forum
74. Pipeline grade code - HCBBS Forum
75. What is the percentage of the tower’s cross-sectional area that should be covered by the nozzles in a spray tower? Are there any regulatory requirements? - HCBBS Forum
76. I would like to ask: what problems might arise if a refrigerant at -25°C is used to cool hot water to room temperature? Will the cooler freeze over? - HCBBS Forum
77. Material layout in fine chemical warehouses - HCBBS Forum
78. perchlorate - HCBBS Forum
79. Issues related to CIP cleaning - HCBBS Forum
80. May I ask whether storage tanks for flammable and explosive substances such as dichloromethane, dichloroethyl chloride, and benzene can have flat bottoms and roofs? - HCBBS Forum
81. Problems with the return water pressure in circulating water for different heat exchangers - HCBBS Forum
82. What problems can arise if the set points for nitrogen supply and nitrogen release under nitrogen sealing are too different? - HCBBS Forum
83. Old K says every week – Talking about things in the petrochemical design industry. Post 57: What to do when there are many equipment connections? - HCBBS Forum
84. Issues with drilling and welding main pipes and branch pipes - HCBBS Forum
85. May I ask if the storage tanks attached to the factory building can be located nearby outside the building? The type that doesn’t require spacing - HCBBS Forum
86. Is there any sludge drying method that uses steam to indirectly heat the sludge? No hot air needed - HCBBS Forum
87. Chemical process fluid pipelines - HCBBS Forum
88. Expiration date of emergency supplies - HCBBS Forum
89. Do nickel-cobalt-manganese hydroxides be ferromagnetic? - HCBBS Forum
90. Hello everyone, I would like to ask whether the water separator and the gas-liquid separator after distillation are the same device It’s still two different devices - HCBBS Forum
91. Syrup decolorization process - HCBBS Forum
92. Calculation of circulating pool volume - HCBBS Forum
93. For a reaction vessel with stirring, temperature control, and pressure control, and in the case of crystals present, what type of level gauge is suitable? - HCBBS Forum
94. Does EPDM gasket contain sulfur? - HCBBS Forum
95. What is this? - HCBBS Forum
96. Looking for recommended books on hydrogen production from methanol - HCBBS Forum
97. Does the composition of the gases change after compression? - HCBBS Forum
98. Masters, how do you calculate the wall thickness of a steam drum? - HCBBS Forum
99. Energy-saving water-source heat pump - HCBBS Forum
100. Substitution for glass-lined reaction vessels - HCBBS Forum