English — Forum #337 (Page 39/163)

1. Thermal safety in chemical processes: Risk assessment and process design - HCBBS Forum
2. May I ask what the effects are of high pressure in the suction tank of the second stage of the propylene compressor? - HCBBS Forum
3. Introductions and comparisons of various heating methods are provided; everyone is welcome to add more information - HCBBS Forum
4. The entire chemical industry chain and listed companies - HCBBS Forum
5. Sulfur regeneration system - HCBBS Forum
6. What causes high turbidity in industrial recirculating water? - HCBBS Forum
7. Absorption - HCBBS Forum
8. I’ve run into a difficult math problem and I’m seeking advice from experts on how to solve it! ! ! - HCBBS Forum
9. Regarding the pressure relief process - HCBBS Forum
10. A flow diagram of a series-connected full-cycle hydrocracking reaction system - HCBBS Forum
11. Several problems that occur during the spraying of polyurethane elastomers - HCBBS Forum
12. Can the H76H-16 check valve only be installed in a vertical pipe? Can horizontal pipes be installed? - HCBBS Forum
13. calcium carbide slag - HCBBS Forum
14. Gas characteristic coefficient calculated for the safety valve - HCBBS Forum
15. How many DOs are required to control the start and stop of a motor using DCS? - HCBBS Forum
16. If the nitrogen supply is interrupted, how should the automatic control valves for nitrogen inlet and outlet of the Class A storage tank equipped with a nitrogen seal operate in an emergency? - HCBBS Forum
17. Calculation of exhaust gas emissions - HCBBS Forum
18. Add advanced control (APC) to the compressor CCC system - HCBBS Forum
19. Regarding long-distance pipelines for corrosive media? - HCBBS Forum
20. For the loading of Class B flammable liquids, should the vapor phase be directed to the oil and gas recovery system? - HCBBS Forum
21. Are there any recommended manufacturers in China that produce high-quality control valves and instruments at the top tier? - HCBBS Forum
22. Which region has more new methanol-to-hydrogen projects than Shandong? - HCBBS Forum
23. Natural Gas Filtration and Separation Unit Operation and Maintenance Manual - HCBBS Forum
24. Resource Sharing | Second Petrochemical Industry Industrial Internet Conference – Collection of Keynote Speeches - HCBBS Forum
25. Update: Add an article on the latest formulas for gas pipeline pressure drop calculation - HCBBS Forum
26. Proceedings of the 1983 International Fertilizer Conference: London, November 13–16 - HCBBS Forum
27. PID diagram reading - HCBBS Forum
28. Can vertical tanks and horizontal tanks be installed on the same fire dike? What should be the distance between a horizontal tank and a vertical tank if possible? - HCBBS Forum
29. I’m looking for recommendations for useful software to delete duplicate files on a computer - HCBBS Forum
30. Section 6.2.22 of GB56160 stipulates that storage tanks equipped with steam heaters shall have measures in place to prevent liquid over-temperature - HCBBS Forum
31. High-pressure steam line cleaning and purging - HCBBS Forum
32. How can these chloride ions be removed from wastewater? - HCBBS Forum
33. On the critical flow of fluids - HCBBS Forum
34. A brief discussion on the meaning of entropy - HCBBS Forum
35. Questions and Answers on Production Operations in Small and Medium-Sized Ammonia Synthesis Plants, Third Edition - HCBBS Forum
36. Air cooler cleaning - HCBBS Forum
37. There are formulas for coloring kraft paper; those who know how to prepare them, please get in touch - HCBBS Forum
38. Lan coal production and power generation - HCBBS Forum
39. Hello everyone, I would like to ask what is the proportion of magnetic particle testing for pressure pipelines? - HCBBS Forum
40. Is it necessary to use compressed air for purging the steam pipeline in the reactor jacket? - HCBBS Forum
41. Electrical Control Technology [edited by Yao Jianfei], 2011 edition - HCBBS Forum
42. Preparation of LaCoO3 by citrate complexation method - HCBBS Forum
43. Hanamaki can also be industrialized - HCBBS Forum
44. ​ The legal basis requiring enterprises that use hazardous chemicals in production to conduct regular safety assessments - HCBBS Forum
45. Why is it necessary to maintain the back pressure constant when shutting down a back-pressure steam turbine? - HCBBS Forum
46. What adhesive is used to apply in the gasket grooves when installing plate heat exchanger gaskets? - HCBBS Forum
47. Compilation of completion documents - HCBBS Forum
48. With a total investment of 11.7 billion yuan, the hoisting of the tallest tower in Jiutai New Materials’ 1 million-ton coal chemical project has been completed - HCBBS Forum
49. PH electrode manufacturers - HCBBS Forum
50. The refining industry is also experiencing intensifying competition! Ethylene consumption will peak around 2030; how can companies succeed - HCBBS Forum
51. Impact of system pressurization during startup on the compression system (prior to the alkali scrubber) in an ethylene plant - HCBBS Forum
52. What is the pressure filling and release rate during the system airtightness testing? - HCBBS Forum
53. The full English name of CRG in David’s CRG technology - HCBBS Forum
54. Do you have 2205 with a steel lining, titanium with a steel lining, Hastelloy with a steel lining, or other types of alloys with a steel lining? - HCBBS Forum
55. I have a question for all the bosses: how much oil is needed to start up the large cycle, and how can this amount be calculated or determined? [Fist bump][Fist bump] - HCBBS Forum
56. SIS logical solution, - HCBBS Forum
57. How to recover alcohol from wastewater containing 16% alcohol and 10% sodium chloride - HCBBS Forum
58. Small software - Air property calculation - HCBBS Forum
59. Regarding the SIS system - HCBBS Forum
60. Lao K says every week – talking about things in the petrochemical design industry. Post 60: Those things that leave design firms at a loss - HCBBS Forum
61. Seeking energy-saving methods - HCBBS Forum
62. Requirements for the layout of conventional distillation towers, stripping towers, etc - HCBBS Forum
63. Is it harmful if the level in the pump oil cup and the oil sight glass is high? If so, what are the hazards? - HCBBS Forum
64. Smoking issue with the Spandex SM fan series. - HCBBS Forum
65. How is sodium hydrosulfide used in the mineral processing process? - HCBBS Forum
66. Does anyone have the data sheet for the pressure relief manhole? Could you please upload it? - HCBBS Forum
67. Compressor gas valve - HCBBS Forum
68. May I ask how much steam is lost due to steam tracing, and how is this amount calculated? - HCBBS Forum
69. Problems with the framework structure in floor plans - HCBBS Forum
70. For various reasons, water from high-level tanks on site is pumped to low-level tanks using centrifugal pumps; how can siphoning be prevented? - HCBBS Forum
71. Is there anyone who does energy chemical engineering design? - HCBBS Forum
72. Regeneration technology for precious metal catalysts in the treatment of organic waste gas and VOC emissions - HCBBS Forum
73. Tuning fork densitometer - HCBBS Forum
74. Chemical processing workshop – Fire detector installation - HCBBS Forum
75. Selection of the vent pressure for the breathing valve - HCBBS Forum
76. At what temperature does dissolved oxygen in the boiler coil water precipitate? - HCBBS Forum
77. N,N-Dimethylbutylamine separation technology - HCBBS Forum
78. When the system is airtight, there are only standards for pipeline airtightness and leakage rates; is there a standard for the overall airtightness leakage rate of the system? - HCBBS Forum
79. What equipment should be used to pressurize the air to 50KPa? - HCBBS Forum
80. What considerations should be taken for ventilation in Class A factories (for methanol)? Additionally, what other safety measures need to be considered besides ventilation? - HCBBS Forum
81. Illustrated Diagrams of Chemical Production Processes (3rd Edition) (Volume 1 and 2) - HCBBS Forum
82. Selection of elbows at the expansion bends in steam pipes - HCBBS Forum
83. An inventory of mainstream landfill leachate treatment processes - HCBBS Forum
84. Should the new standards or old standards be applied during the renovation or maintenance of pressure pipelines? - HCBBS Forum
85. Spandex - HCBBS Forum
86. Power distribution issues for the water injection pumps in the spherical tank water injection system - HCBBS Forum
87. I have a question regarding the throttling expansion of gases - HCBBS Forum
88. How to remove impurities from sodium chloride - HCBBS Forum
89. I need advice on the interlock setup for the storage tank’s vent valve and isolation valve! - HCBBS Forum
90. I would like to know the pressure under discharge conditions for a safety valve calculated using SW6 - HCBBS Forum
91. On the uses of coke oven stack venting - HCBBS Forum
92. Questions about steam jet pumps - HCBBS Forum
93. Temperature of steam condensate under pressure - HCBBS Forum
94. What is the difference between the two types of steam reboilers? - HCBBS Forum
95. Maintenance plan and production plan required for a benzene extraction unit with an annual output of 26,000 tons - HCBBS Forum
96. Is it possible to separate water, methanol, and ammonia nitrogen? - HCBBS Forum
97. Illustrated flowchart of fine chemical production process - HCBBS Forum
98. Usage Instructions - HCBBS Forum
99. Unit converter - HCBBS Forum
100. According to the latest standards, what pressure pipeline class do pipelines for transporting methanol and benzene with a diameter of DN50 or larger fall under? - HCBBS Forum