English — Forum #723 (Page 569/642)

1. I have a question regarding heating gases - HCBBS Forum
2. The use of HART protocol in control systems - HCBBS Forum
3. Safety valve airtightness - HCBBS Forum
4. Announcement on Changes to the Management Area by the Regional Moderators of Life Forum - HCBBS Forum
5. What is needed to turn an idea into a reality? - HCBBS Forum
6. Please cast your vote - HCBBS Forum
7. The display value of the pressure transmitter does not match that of the DCS – what is the reason? - HCBBS Forum
8. CADWorx P&ID valve block scale issue - HCBBS Forum
9. Looking for someone to crack the data; sharing with fellow users - HCBBS Forum
10. What causes the second-stage movement in the propylene machine? - HCBBS Forum
11. Catalysis – Stripping of the distillation range in the fractionation system - HCBBS Forum
12. The pH of the water output from iron-carbon microelectrolysis decreases - HCBBS Forum
13. How to treat the wastewater from cofferdams - HCBBS Forum
14. Sharing of various PCS7 SOPs. - HCBBS Forum
15. How can a complete set of PLC-driven vacuum pumps be operated via DCS? - HCBBS Forum
16. Air separation – persistence leads to success; request for job transfer post - HCBBS Forum
17. A celebration in the chemical industry! ICIF 2015, the 14th China International Chemical Industry Exhibition (Shanghai) - HCBBS Forum
18. Should the lubrication pump and oil injector be turned on while cranking a reciprocating compressor? - HCBBS Forum
19. Is the orifice plate designed for standard conditions or for actual operating conditions? - HCBBS Forum
20. Are there any newly built chemical plants in Dongying? - HCBBS Forum
21. In the calculation of standard heat of combustion, is H2O produced in complete combustion in gaseous form? - HCBBS Forum
22. Order No. 84 of the State Administration of Work Safety - HCBBS Forum
23. What should be noted when reading a burette - HCBBS Forum
24. What are the symptoms of a DCS system failure? - HCBBS Forum
25. Soft water, deionized water - HCBBS Forum
26. What is the phenomenon of backflowing trays? - HCBBS Forum
27. Why are gate valves chosen as cut-off valves for steam and drain pipelines? - HCBBS Forum
28. 【Basic Knowledge of Glossary Definitions for “Polymers and Materials”-011】Glossary definitions related to polymers - HCBBS Forum
29. Requirements for filling in original records - HCBBS Forum
30. Chemical Engineering in Daily Life Test Question 1 – Standard Answers Available - HCBBS Forum
31. At the installation stage, what methods do people use (how do they proceed) to ensure the quality of pipeline welding or the quality of pump installation? - HCBBS Forum
32. Issues regarding the sealing of 1-inch ball valves with blind flanges - HCBBS Forum
33. Recovery of copper ions from wastewater - HCBBS Forum
34. Natural gas desulfurization - HCBBS Forum
35. 【Health Tips】Sun protection in hot weather – What you know and what you don’t know - HCBBS Forum
36. What is the best method for cleaning hydrogen scrubbers? - HCBBS Forum
37. Materials required for the company to obtain a design certificate - HCBBS Forum
38. Seeking advice - HCBBS Forum
39. Weekly topic: 8 Wealth points for those who answer correctly, 2 Wealth points for participation； Question 128 - HCBBS Forum
40. Can a steam jet pump be used to pump water? - HCBBS Forum
41. The exam has been postponed - HCBBS Forum
42. Is it a problem with the valve, or an issue with the signal from the equipment? - HCBBS Forum
43. What pumps are generally used for acidic water stripping and amine solution regeneration? - HCBBS Forum
44. What are the main conditions that lead to fatigue failure of pressure vessels? - HCBBS Forum
45. High-temperature lubricating oil cooling scheme - HCBBS Forum
46. Are there any new companies in the chlor-alkali industry? - HCBBS Forum
47. Ask about how to prepare materials for on-site steel structure construction - HCBBS Forum
48. What’s Aspentech like? I applied for a testing position there. Someone knowledgeable is online! - HCBBS Forum
49. Hydrogen production from coking dry gas - HCBBS Forum
50. Can the emergency shutdown procedure of a reciprocating compressor be carried out by using a self-acting unloader for unloading? - HCBBS Forum
51. Should I choose air separation or purification? - HCBBS Forum
52. The process manual valve has internal leakage - HCBBS Forum
53. Six rules for women’s success in the workplace - HCBBS Forum
54. I have a question regarding turbine interlocks that I’d like to ask everyone! - HCBBS Forum
55. Calculation of boiler flue gas volume - HCBBS Forum
56. Glass microspheres for anti-corrosion materials - HCBBS Forum
57. Regarding the time for the initial inspection of pressure vessels - HCBBS Forum
58. Installation of heat exchanger tube box gaskets - HCBBS Forum
59. How is localized corrosion in the tower structure generally repaired? What are the bases? - HCBBS Forum
60. Calculation formula for differential pressure flow meters - HCBBS Forum
61. Regarding the issue of the size ratio of the gauge legend circles in PID - HCBBS Forum
62. Should the large tie rod compensator be insulated? - HCBBS Forum
63. Software error occurs during the simulation of the Aspen PIMS reformer - HCBBS Forum
64. Wire to Water Efficiency - HCBBS Forum
65. What is the elastic modulus of polyurethane materials, and what is their Poisson’s ratio? - HCBBS Forum
66. For a reciprocating compressor with three-stage compression, how should the operator adjust the inter-stage circulation when shutting down the machine? - HCBBS Forum
67. Can a storage tank for 50% methanol-water solution with a capacity of 150 cubic meters be designed with a diameter of 4200 mm and a height of 10500 mm? - HCBBS Forum
68. Installation of pipe tray in ductwork - HCBBS Forum
69. 【Basic Knowledge of Glossary Definitions for “Polymers and Materials”-003】Glossary definitions related to polymers - HCBBS Forum
70. Translation for chemical engineering field (no software translation) - HCBBS Forum
71. Discussion on new specifications for oil storage tanks - HCBBS Forum
72. I’ve decided to take the exam for Certified Chemical Engineer in 2015! - HCBBS Forum
73. Suggestions for the spending section - HCBBS Forum
74. What type of steel pipe should be used for low-temperature liquid CO2? - HCBBS Forum
75. Is there a specified time for the demulsification value of general lubricating oils? What is the standard? - HCBBS Forum
76. Rising raw material prices help PVC stop falling and stabilize - HCBBS Forum
77. 【Basic Knowledge of Glossary Definitions for “Polymers and Materials”-004】Glossary definitions related to polymers - HCBBS Forum
78. Find the scanned version of 47013-2015 - HCBBS Forum
79. 【Daily Question】Question from Issue 20150805 - HCBBS Forum
80. Safety valve--the temperature drop effect caused by the discharge of gas and liquid - HCBBS Forum
81. How can we simply understand why compressors should not operate with liquid inside them, and why pumps should not suffer from cavitation? - HCBBS Forum
82. Ask about the structure of high-pressure reciprocating pumps and the names of their various components - HCBBS Forum
83. Plunger metering pump failure - HCBBS Forum
84. 【Daily Question】August 9: The role of cooling steam for the turbine disc in catalytic cracking flue gas turbines - HCBBS Forum
85. What is Digu paint? - HCBBS Forum
86. 18 companies that produce both urea and ** - HCBBS Forum
87. Regarding the issue of drain leakage - HCBBS Forum
88. Questions regarding fully threaded studs - HCBBS Forum
89. Calculation of wall thickness - HCBBS Forum
90. Feeling the difficulty in signing up, I composed two short poems as a light-hearted joke. - HCBBS Forum
91. Colleagues in the field of methanol-to-olefins: What are the reasons for the increased carbon deposition in the DMTO reaction? Please help find answers - HCBBS Forum
92. Classification of pressure pipelines - HCBBS Forum
93. The new company requires the establishment of an environmental management system, and I am seeking help - HCBBS Forum
94. 【Daily Question】Chemical Engineering Principles 124: Heating by Boiling (July 30) - HCBBS Forum
95. Reasons for the increase in nitrogen content in the transformed gas - HCBBS Forum
96. Regarding the exhaust device on top of the reducer - HCBBS Forum
97. What does “sleeperway” mean? - HCBBS Forum
98. Why is quenching and tempering necessary for steel parts? What is the effect? - HCBBS Forum
99. Analysis of the 8 Major Causes of Faults in Inverters and Preventive Measures - HCBBS Forum
100. Radar level gauge with isolation valve - HCBBS Forum