English — Forum #337 (Page 25/163)

1. Steel sleeve over steel pipe - HCBBS Forum
2. GPSA - Gas Processors Suppliers Association, Engineering Data Book (14th Ed) Engineering Data Manual for Gas Processing - HCBBS Forum
3. What preheating temperature can be achieved in the reactor using 1.0 MPa medium-pressure superheated steam (200°C)? - HCBBS Forum
4. Freezing water pressure retention issue - HCBBS Forum
5. Boiler superheated steam analysis - HCBBS Forum
6. The steam pipeline industry requires no rust removal or anti-corrosion treatment - HCBBS Forum
7. What is raw driving, and what are its definitions and special requirements? - HCBBS Forum
8. Question - HCBBS Forum
9. Is it required that the torch fuel gas system have at least one alternative gas supply source? - HCBBS Forum
10. Help with chemical reactions - HCBBS Forum
11. Which components do not belong to non-methane hydrocarbons? - HCBBS Forum
12. sodium terephthalate - HCBBS Forum
13. Seeking help with WBS decomposition for petrochemical projects - HCBBS Forum
14. Is there any requirement for explosion protection regarding self-acting control valves? Is there any talk about fire prevention? - HCBBS Forum
15. A welding issue regarding the bottom support of a slotted elbow - HCBBS Forum
16. Plug-flow reactor with recirculating stream - HCBBS Forum
17. Why is a low liquid level interlock installed in storage tanks? - HCBBS Forum
18. Mid-to-senior level engineer in chemical engineering, seeking a job without an office requirement - HCBBS Forum
19. What is the difference between fixed-tube-sheet heat exchangers, U-tube heat exchangers, and floating-head heat exchangers? What are the structural differences? - HCBBS Forum
20. Classification of fire hazards in incinerators - HCBBS Forum
21. How to choose installation materials for equipment - HCBBS Forum
22. Seeking \"Simulation of Petroleum Refining Process\" - HCBBS Forum
23. What should a construction technician learn if he wants to switch to working as a production technician in a chemical company? - HCBBS Forum
24. How much heat is required to heat 300 kg/h of ethylene glycol to steam? - HCBBS Forum
25. What is the difference between an emergency accident tank and an emergency sewage tank? - HCBBS Forum
26. For 3-6 kg of saturated steam, what type of ball valve should be used? Are there any detailed specifications available? - HCBBS Forum
27. Problems with the C5 separation unit - HCBBS Forum
28. What type of safety valve should be used in a micro-negative pressure furnace - HCBBS Forum
29. What are some good solutions if the conduits or liquid connection parts of the instrument freeze in winter, causing the instrument to stop displaying readings? - HCBBS Forum
30. Who can help calculate the required heat exchange area for the cooler in the table below? Urgent urgent urgent - HCBBS Forum
31. How can one view attributes of parts in SolidWorks such as dimensions, quantity, and specifications? - HCBBS Forum
32. Steam heating calculations - HCBBS Forum
33. Seek help: Table for comparing propane tank liquid levels at 4000 - HCBBS Forum
34. Is there a hessius-entropy diagram that allows for the simultaneous calculation of multiple pressures (or temperatures)? - HCBBS Forum
35. I need a production process flow for PTA. Thank you! ! ! - HCBBS Forum
36. Reduce COD in wastewater? - HCBBS Forum
37. Use of the Trend module in the Yokogawa VP system DCS - HCBBS Forum
38. Solution testing method - HCBBS Forum
39. Freeze crystallization process - HCBBS Forum
40. On the air compressor selection catalog, is a flow rate of 0.6 m³/min specified under standard conditions or under 8 kg pressure? - HCBBS Forum
41. Temperature difference control at the top and bottom of the distillation column - HCBBS Forum
42. Calculation of spray tower flow rate - HCBBS Forum
43. Saturated steam and superheated steam - HCBBS Forum
44. Chemical analysis and testing - HCBBS Forum
45. How to address the fluctuations in the outlet pressure of both pumps during production? - HCBBS Forum
46. Is it feasible to convert an ammonia storage tank into a waste oil boiler? ? - HCBBS Forum
47. Can materials with different fire extinguishing methods be stored in the same warehouse if an appropriate fire extinguishing method is used for all of them? - HCBBS Forum
48. May I ask that wastewater treatment equipment needs to be explosion-proof in explosion-proof areas; can blueprints still be issued with an environmental protection grade of Class B? - HCBBS Forum
49. The environment sector urgently needs new jobs - HCBBS Forum
50. Stabilization of the butadiene system - HCBBS Forum
51. ASPEN simulation calculation: Distillation column calculation + schematic diagram - HCBBS Forum
52. Explanation of the specifications for DNW-type cationic catalysts in both Type A and Type B - HCBBS Forum
53. During the first start-up of the unit, when were the utility services introduced? Please, expert, help me understand this - HCBBS Forum
54. What does the thermocouple sleeve model GWM33*2-160 mean? - HCBBS Forum
55. Petroleum product quality standards - HCBBS Forum
56. How to set up the interlock for the ratio of hydrogen and oxygen in the production of hydrogen peroxide using the anthraquinone method? - HCBBS Forum
57. If I am selling complete sets of exhaust gas adsorption equipment, does my company still need to have the qualifications to produce drawings for exhaust gas systems? - HCBBS Forum
58. The thermal bypass system adjusts the height of the condenser and the return tank - HCBBS Forum
59. For pressure pipelines with a diameter of DN50 or larger, which need to be resistant to acids, those with a steel lining are used. Can such pipelines be submitted for inspection as pressure pipelines? Is it not possible to proceed with the inspection? - HCBBS Forum
60. Is a check valve needed at the fan outlet of the organic waste gas adsorption unit? - HCBBS Forum
61. Question: Which standards should be referred to for determining the wall thickness of pipes used in the chemical industry? - HCBBS Forum
62. Question: What does the gasket symbol “gasket garlock 706 ff” on the drawings from Hualu Design Institute mean? - HCBBS Forum
63. Recruiting a single social insurance-registered chemical engineer (to be promoted to Level A in the chemical field) - HCBBS Forum
64. MTO plant recruiting process experts - HCBBS Forum
65. With a total flow rate of 500 cubic meters per hour, is it better to use 3 small pumps with 2 in use and 1 as a backup, or 1 large pump with 1 in use and 1 as a backup? - HCBBS Forum
66. Kraus reaction air distribution control - HCBBS Forum
67. What metal is suitable for 90-degree supersaturated sodium chloride? - HCBBS Forum
68. How is the regular discharge volume of a steam generator calculated? - HCBBS Forum
69. The polymer product cannot be shaped due to an excessively high iron content - HCBBS Forum
70. Can the chlor-alkali industry use 316L material for refining once and twice saturated brine at a temperature of 40 degrees? - HCBBS Forum
71. How can I set the labeled text to be the same as the text below it? - HCBBS Forum
72. Is a straight pipe section required at the inlet of a centrifugal pump? - HCBBS Forum
73. Pipe design size - HCBBS Forum
74. What does it mean for a diaphragm pump to experience pressure buildup? - HCBBS Forum
75. What about the statement in the second volume of Physical Chemistry published by Nanjing University, which claims that the maximum one-way conversion rate for ammonia synthesis is 26%? - HCBBS Forum
76. Increase the flow rate of the medium in the pipeline - HCBBS Forum
77. Seek help: Comparison of process technologies such as pressure swing adsorption, temperature swing adsorption, membrane separation, low-temperature catalytic methods, active adsorption, and isothermal adsorption - HCBBS Forum
78. The material is fed into the methanol distillation vent line of the reactor under atmospheric pressure - HCBBS Forum
79. Process drawings illustrating the workflow - HCBBS Forum
80. What kind of pump can be used to extract the salt, namely sodium chloride, that settles at the bottom after it precipitates out in saline water? - HCBBS Forum
81. Do boilers that use condensate water as feedwater require the addition of phosphates and ammonia? - HCBBS Forum
82. PFA consumables for isotope analysis applications - HCBBS Forum
83. Should the backpressure valve of the chemical dosing pump be installed near the pump itself, or closer to the point where the chemical is applied? - HCBBS Forum
84. There are Class A storage tanks as well as ordinary storage tanks inside the fire dike. Are there any spacing requirements between Class A tanks and ordinary tanks? - HCBBS Forum
85. For 20,000 tons per day, after passing through the V-type filter, what type of filter would be suitable for further filtration? - HCBBS Forum
86. Reasons for the red color change in resorcinol and treatment methods - HCBBS Forum
87. Where can I find the industrial standards for various chemical products? - HCBBS Forum
88. Hydrogen production by electrolyzing water - HCBBS Forum
89. Zhejiang Huiyong New Materials Co., Ltd. —— A leader in deep dehydration using molecular sieve membranes - HCBBS Forum
90. Is there any material that can meet the requirements? - HCBBS Forum
91. What are the consequences if the safety valve or rupture disc openings are made too large? - HCBBS Forum
92. I would like to ask about the meaning of the letter codes for valve models in the drawings from Hualu Design Institute - HCBBS Forum
93. Recycling of reaction heat - HCBBS Forum
94. Why is potassium hydroxide more expensive for the alkali washing process in single-crystalline silicon production, and why isn’t sodium hydroxide used instead? - HCBBS Forum
95. Key analyses in reactors drive biological smart manufacturing during the 14th Five-Year Plan period - HCBBS Forum
96. Information related to filling out blind plate tickets - HCBBS Forum
97. The world beneath the diaphragm - HCBBS Forum
98. The root valve (manual valve) of the separator does not close properly – how can it be replaced under pressure? - HCBBS Forum
99. What type of valve is suitable for use on large-diameter exhaust gas adsorption ducts with diameters over 400, one that offers good sealing performance and high pressure resistance? - HCBBS Forum
100. What are the dangers of hydrogen peroxide? - HCBBS Forum