English — Forum #337 (Page 51/163)

1. How to remove the odor of sulfur-containing organic compounds? - HCBBS Forum
2. Instruments for testing the calorific value and composition of gas - HCBBS Forum
3. Analysis of Blockages, Scaling, and Other Issues in Plate Heat Exchangers—EJS Scraper-Type Self-Cleaning Filters Installed Before Heat Exchangers - HCBBS Forum
4. May I ask how to obtain a graph showing the relationship between concentration, temperature, and density for ethanol and ammonia aqueous solutions? - HCBBS Forum
5. Selection of the precision for the post-multi-media filter safety filter - HCBBS Forum
6. What standard is used for the process pipeline documentation in LNG peak-shaving storage and distribution stations? - HCBBS Forum
7. Regarding the pressure-enthalpy diagram of the refrigerant R22 in the Danfoss Coolselector software - HCBBS Forum
8. Calculation of pipe pressure drop for laminar flow of high-viscosity materials - HCBBS Forum
9. Methods for calculating weld strength and weld dimensions - HCBBS Forum
10. It is necessary to recommend a suitable online oxygen content monitor - HCBBS Forum
11. What is the application range of the Bernoulli equation? - HCBBS Forum
12. Post on the distribution of wealth rewards for Process Area in October 2020 - HCBBS Forum
13. Can vibrators be installed on high-pressure pipelines? - HCBBS Forum
14. Defoamer design collaboration - HCBBS Forum
15. I would like to reuse the exhaust gas resulting from ozone oxidation through aeration. Is it possible to compress it using a blower or air compressor before reusing it? - HCBBS Forum
16. The propylene in the tank truck cannot be unloaded completely - HCBBS Forum
17. Piping instrumentation/pumps related to pH adjustment with HCl - HCBBS Forum
18. Does the positive-pressure non-metallic composite pipeline used in gas stations fall under the category of pressure pipelines? - HCBBS Forum
19. What does a control point in a centrifugal compressor refer to? - HCBBS Forum
20. Training for employees in the sulfur workshop - HCBBS Forum
21. Nitrogen sealing issue - HCBBS Forum
22. Energy balance - HCBBS Forum
23. Is there a process flow diagram for the preparation of glycerin via the hydrolysis of epichlorohydrin? - HCBBS Forum
24. 2020 Storage and Transportation Tank Farm Conference Report - HCBBS Forum
25. Should water features be installed in the chemical plant area to enhance its aesthetics? - HCBBS Forum
26. Low-pressure condensate - HCBBS Forum
27. Shanxi Gas Group signs contract for world’s first hydrogen energy development and utilization project demonstration - HCBBS Forum
28. PP pipes with good electrical conductivity? - HCBBS Forum
29. Changes in light and heavy components during distillation - HCBBS Forum
30. When draining water before steam soot blowing, the impact force of the steam is too strong; once it enters the water tank, excessive noise is generated. How can this be resolved? The water in the pool is still quite dirty. - HCBBS Forum
31. Experience in the design and use of triple-effect evaporators - HCBBS Forum
32. Manual valve in front of the steam trap, drainage issues - HCBBS Forum
33. Help needed - HCBBS Forum
34. Selection of pressure gauge range - HCBBS Forum
35. Apart from Hengli Petrochemical, these nine major domestic refining and chemical companies are worth paying attention to in 2021! - HCBBS Forum
36. Guys, what does this symbol mean? I’m a complete beginner and need some guidance - HCBBS Forum
37. How to ensure the safe protection and monitoring of long-distance hydrogen sulfide pipelines? - HCBBS Forum
38. Dry gas, propane-based hydrogen production - HCBBS Forum
39. VOC governance - HCBBS Forum
40. Liquid-liquid separator calculation table - HCBBS Forum
41. Dehydrogenation catalyst regeneration - HCBBS Forum
42. May I ask for the calculation formulas for design energy consumption, design specific energy consumption, and design energy specific consumption? - HCBBS Forum
43. Selection of filtration and separation equipment in chemical process production - HCBBS Forum
44. Deep analysis device for hydrochloric acid - HCBBS Forum
45. About the errors in the fifth edition of "Chemical Process Design Manual" - HCBBS Forum
46. Have you considered adding a section on battery chemistry processes? - HCBBS Forum
47. Air separation system flowchart - HCBBS Forum
48. Intelligent unpacking and material feeding replaces manual feeding - HCBBS Forum
49. Confusions in preparing alkaline solutions - HCBBS Forum
50. How to reduce emissions from the low-pressure steam drum and condensate collection - HCBBS Forum
51. Control scheme for the top temperature of the distillation tower and the liquid level in the reflux tank - HCBBS Forum
52. Distinguishing ethanol from methanol - HCBBS Forum
53. Old K says every week – talking about things in the petrochemical engineering design industry. Post 35: Looking back on the past – job assignments after graduation - HCBBS Forum
54. Warehouse grades: new problems for veteran revolutionaries - HCBBS Forum
55. Help with converting the usage of heat transfer oil and natural gas! - HCBBS Forum
56. Seeking help with PBAT process package - HCBBS Forum
57. Selection of the nominal pressure for pipe fittings - HCBBS Forum
58. I would like to ask the experienced colleagues about rough crushing of coal - HCBBS Forum
59. I would like to ask some experts about the design of instrument air supply. - HCBBS Forum
60. China’s petrochemical industry is undergoing a major transformation and restructuring - HCBBS Forum
61. Purification of sulfur paste to produce pure industrial-grade sulfur paste - HCBBS Forum
62. The tank is filled using a tank truck pump; an existing pump is reused, but its flow rate is slightly higher, which results in a greater flow velocity. What is the best way to limit the flow rate? - HCBBS Forum
63. Table of boiling points of water at various negative pressure values - HCBBS Forum
64. Seeking help regarding components in LNG - HCBBS Forum
65. Common problems in steam systems in winter - HCBBS Forum
66. Pipeline layout design issues - HCBBS Forum
67. I’ve been learning pipeline single-line diagrams recently, and the English version seems quite difficult. Could anyone who knows a lot about this topic provide a summary of the relevant knowledge points? Thank you all here. - HCBBS Forum
68. Fire hazards of phosphorus trichloride - HCBBS Forum
69. Is nitrogen sealing protection required for the high-level oil tank of a heat transfer oil furnace? - HCBBS Forum
70. What are the appropriate design pressure and design temperature for equipment operating at normal temperature and pressure? ? - HCBBS Forum
71. What is the density of ethylene at a gauge pressure of 1.2 MPa and 40°C? How is it calculated? - HCBBS Forum
72. Skid-mounted natural gas liquefaction units are suitable for the recovery of associated gas - HCBBS Forum
73. Vaporization enthalpy of glutarimine - HCBBS Forum
74. Modify the CAD drawing inside the compressed file - HCBBS Forum
75. Seek assistance for performance testing - HCBBS Forum
76. Who has the YS/T599 standard for ultra-fine palladium oxide powder? - HCBBS Forum
77. Issues related to Fenton treatment of electroplating wastewater - HCBBS Forum
78. The best stocks for the next 2 years: Rongsheng Petrochemical is the top choice in China’s private large-scale petrochemical industry - HCBBS Forum
79. Issues with the selection of view mirrors - HCBBS Forum
80. Types of separation membranes - HCBBS Forum
81. Setting of carbon monoxide and ammonia alarm values - HCBBS Forum
82. Sodium borohydride technology transfer - HCBBS Forum
83. By increasing the diesel temperature by 15°C, how much electricity can the fan save? - HCBBS Forum
84. What caused the pump to stop? - HCBBS Forum
85. Hydrodynamic vector suspension atomization energy-saving cooling tower - HCBBS Forum
86. The use of sodium saccharin - HCBBS Forum
87. Over-temperature issue during the operation of a three-bed RTO - HCBBS Forum
88. Acetylene content specification for medium and low temperature storage tanks in standard 16912 - HCBBS Forum
89. Center of gravity marker - HCBBS Forum
90. The waste heat recovery project for the rising tube in Shandong Rongxin has successfully passed the overall acceptance - HCBBS Forum
91. Selection calculation for vacuum pumps in evaporation systems - HCBBS Forum
92. Regarding the issue of explosive hazard areas for fuel oil - HCBBS Forum
93. The presence of material in the vacuum unit affects its operation - HCBBS Forum
94. What considerations should be taken when selecting a mixer for coil cooling in a reaction vessel? - HCBBS Forum
95. The reaction requires a temperature of 175 degrees Celsius; what heating medium can be used? - HCBBS Forum
96. Seek help in stages - HCBBS Forum
97. In reactions, it is often said that a certain reaction is a first-order reaction or a second-order reaction – what determines this? Are there any books that introduce this? - HCBBS Forum
98. Safety valve on the pump outlet - HCBBS Forum
99. Schematic flow diagram of propylene refrigeration - HCBBS Forum
100. Question regarding whether nitric acid constitutes a major hazard source - HCBBS Forum