English — Forum #723 (Page 431/642)

1. Who has an economic analysis of methanol production from coke oven gas - HCBBS Forum
2. In chemical manufacturing enterprises, to which category should the components in the control cabinets provided by the manufacturers of individual equipment belong... - HCBBS Forum
3. Partial pressure table of water vapor in hydrogen gas - HCBBS Forum
4. Some issues encountered during the commissioning of a vacuum distillation unit - HCBBS Forum
5. Blackening of lubricating oil - HCBBS Forum
6. Issues regarding the frequency conversion effects of frequency converters when used with positive displacement pumps and centrifugal pumps - HCBBS Forum
7. One question per day (1203) - HCBBS Forum
8. Civil Engineering Structure Discussion Area ----【Daily Question】Question from the 20151127 issue - HCBBS Forum
9. Soft thin wire capable of withstanding temperatures over 1500 degrees Celsius - HCBBS Forum
10. I wonder if centrifugal pumps can have their speed adjusted via frequency conversion; what about metering pumps (positive displacement pumps)? - HCBBS Forum
11. 【Daily Question】Chemical Engineering Principles 245: Shell and Tube Condenser (November 26) - HCBBS Forum
12. Questions regarding professional qualifications and work experience for applying for professional titles - HCBBS Forum
13. Can the material of carbon dioxide gas pipelines be seamless carbon steel pipes? - HCBBS Forum
14. Internal structure of the urea two-stage evaporation separator - HCBBS Forum
15. Determination of the maximum operating pressure of the pipeline - HCBBS Forum
16. What is the normal range for the recovery rate of steam condensate in chemical production plants? - HCBBS Forum
17. ASME anchor bolt material grades - HCBBS Forum
18. Equipment supplier recommended by the design institute - HCBBS Forum
19. Catalyst sought! - HCBBS Forum
20. What is the difference between excavation work and digging work? - HCBBS Forum
21. Why are control valves generally installed at the outlet - HCBBS Forum
22. Damp-proof cover for GE coal-water slurry gasifier - HCBBS Forum
23. What does RAMP mean in Siemens’ PCS7? - HCBBS Forum
24. Attracting investment for a new glycerin refining project - HCBBS Forum
25. Regarding home oxygen cylinders - HCBBS Forum
26. DCS configuration: edge-triggered? - HCBBS Forum
27. Bid transmitter - HCBBS Forum
28. Effects of excessive and insufficient outer epoxy flow rate in GE coal water slurry gasification on the gasification flow field and reactions - HCBBS Forum
29. How do I turn off the theme? - HCBBS Forum
30. Sign-in record post dated November 28, 2015 - HCBBS Forum
31. 【Petrochemical Section】Receive the special post for “Event Points” in November - HCBBS Forum
32. Environmental issues related to the cleaning of tank trucks - HCBBS Forum
33. Standards related to mechanical pumps, such as API 610, etc - HCBBS Forum
34. What is the scope of application for filter bags? - HCBBS Forum
35. The DOTP color code is high, making it difficult to resolve - HCBBS Forum
36. Everyone is welcome to discuss LDAR technology - HCBBS Forum
37. What are the problems in SNCR applications? - HCBBS Forum
38. Dry gas seal backpressure for pumps - HCBBS Forum
39. Do you know all eight key points for designing toughening formulations? - HCBBS Forum
40. Civil Engineering Structure Discussion Area ---- [Daily Question] Question from Issue 20151205 - HCBBS Forum
41. What is the membrane dosing tank method? - HCBBS Forum
42. Seeking assistance with the process settings for the dilute ammonia tank - HCBBS Forum
43. 【Daily Question】Question from 20151203 - HCBBS Forum
44. What is the impact of potassium and sodium elements in coal on the gasification reaction? - HCBBS Forum
45. Help needed regarding the BGL gasifier - HCBBS Forum
46. Starting oil pressure and quick-shut oil pressure - HCBBS Forum
47. Let’s talk about how things are after changing jobs - HCBBS Forum
48. Pulling the head off and trimming the tail - HCBBS Forum
49. Frequency modulation of the rich gas compressor in delayed coking - HCBBS Forum
50. Chemical plant inspection management system - HCBBS Forum
51. Prima introduces a low-hardness TPE suitable for window sealing - HCBBS Forum
52. CCI control valve - HCBBS Forum
53. Valve stem fracture location - HCBBS Forum
54. China in Western News 2015-12-02 - HCBBS Forum
55. What is the formula for calculating the deformation rate of pushed elbow? Where can I check this? Please give some guidance! - HCBBS Forum
56. Painting of valves - HCBBS Forum
57. Leakage in a converter tube - HCBBS Forum
58. Does the exhaust port on the pump casing discharge to the atmosphere directly, or does it depend on the medium? - HCBBS Forum
59. Treatment of flue gas desulfurization wastewater - HCBBS Forum
60. Impact of changes in crude oil composition on atmospheric and vacuum distillation units - HCBBS Forum
61. What does it depend on that SNCR urea proportional dilution cannot be achieved? - HCBBS Forum
62. 【Daily Question】Question from the 20151126 issue - HCBBS Forum
63. Catalytic raw material heavy metals - HCBBS Forum
64. 【Daily Question No. 34】November 26, 2015: +2 wealth for participation, +3 additional wealth for correct answers - HCBBS Forum
65. Regarding the Aspen feed issue - HCBBS Forum
66. 【Weekly Topic】November Issue 1: Heating for instrumentation and controls? - HCBBS Forum
67. Joint Learning*1125: +2 wealth for participation, +9 wealth for correct answers - HCBBS Forum
68. What is a liquefied gas cylinder? - HCBBS Forum
69. Newbie seeking help: several questions regarding gas detectors - HCBBS Forum
70. Gas content in the tubes of a forced-circulation evaporator and optimal flow rate - HCBBS Forum
71. 【Daily Question】Question from the 20151125 issue - HCBBS Forum
72. Reboiler heat transfer medium flow control issue - HCBBS Forum
73. What are the hazards of a drop in steam pressure in a turbine? - HCBBS Forum
74. The scores for the Shanghai safety engineer exam have been released, but the passing threshold has not yet been announced - HCBBS Forum
75. Regarding internal leakage in heat exchangers - HCBBS Forum
76. What are the pH and conductivity of various types of water in chemical production? Everyone is welcome to discuss - HCBBS Forum
77. What material filled inside the temperature-sensitive sleeve yields the best results? - HCBBS Forum
78. How does water quality lose its stability? How to tell? - HCBBS Forum
79. 【Daily Question】11.25 Multiple-choice question: Among the four types of hydrogenation reactions—denitration, deoxygenation, aromatic saturation, and monoenol saturation - HCBBS Forum
80. Sign-in record post dated December 3, 2015 - HCBBS Forum
81. I made a fool of myself - HCBBS Forum
82. What welding material to use for 20 (ANTI H2S)? - HCBBS Forum
83. Another reply to a colleague on WeChat - HCBBS Forum
84. November 27, Question 102 on Boiler Foundations: (A certain score will be given to the top 50) - HCBBS Forum
85. “The judgment for 11·22 has been issued; won’t the leaders come and take a look at our corrupted version? - HCBBS Forum
86. YT1000 valve positioner surge - HCBBS Forum
87. What are the brand manufacturers of crude oil shrinkage rate testers? - HCBBS Forum
88. Can the large opening analysis method for pressure vessel shells be used for the stress calculation of openings reinforced with protruding nozzles? - HCBBS Forum
89. In a process piping and instrumentation diagram, what do KMI and KPI represent respectively? - HCBBS Forum
90. 20151205 One question per day - HCBBS Forum
91. Analysis of the sulfate market trend in November 2015 - HCBBS Forum
92. 【Daily Question No. 66】December 01, 2015: +2 wealth for participation, +3 to +8 wealth for correct answers - HCBBS Forum
93. 【Active Participation for Joint Improvement 11.26-12.2】+2 for participation, +3~10 for correct answers - HCBBS Forum
94. Regarding steam temperature reducers - HCBBS Forum
95. Reply sent to a WeChat colleague yesterday - HCBBS Forum
96. 【Daily Question】True or False: The reason polytetrafluoroethylene is used as a sealing material is its resistance to high temperatures and various types of corrosion - HCBBS Forum
97. 【Picture of the Day】12.2 What is the device in this picture? - HCBBS Forum
98. December 1, Question 107 on Boiler Foundations: (A certain score will be given to the top 50) - HCBBS Forum
99. 【Daily Question No. 62】November 25, 2015: +2 wealth for participation, plus another +3 to +8 wealth for correct answers - HCBBS Forum
100. What are the sources and basic characteristics of phosphate scale? - HCBBS Forum