English — Forum #723 (Page 563/642)

1. 【Daily Question】Chemical Engineering Principles 137: Constant Drying Conditions (August 10) - HCBBS Forum
2. Fire at the gas collector cleaning hole - HCBBS Forum
3. 【Daily Question】Question from Issue 20150818 - HCBBS Forum
4. The origin of the question regarding the equatorial zone of spherical tanks - HCBBS Forum
5. Lindan has fallen from its pedestal; it was eliminated from the top 4 with a 0:2 score yesterday - HCBBS Forum
6. What is the purpose of placing ceramic balls on top and bottom of the catalyst in the tower? - HCBBS Forum
7. How does the leak detection device for the descent tube of a space furnace work? - HCBBS Forum
8. Note: Real exam questions from 2012, Knowledge section, Morning session, Question 51 - HCBBS Forum
9. Looking for the manual for ABB valve positioners - HCBBS Forum
10. Seeking help with the calculation of a heat exchanger (supercritical condition) - HCBBS Forum
11. Inlet location of the reflux tank - HCBBS Forum
12. Xiaobai is seeking advice on technical issues related to electric actuators - HCBBS Forum
13. The busyness of work is a way of life - HCBBS Forum
14. Find customers for stainless steel filters - HCBBS Forum
15. Gasoline hydrogenation issue 1 - HCBBS Forum
16. Sany Construction Machinery signs a strategic cooperation agreement with Jiyuan Iron and Steel Group - HCBBS Forum
17. Coal-to-methanol: Texaco process – how to address the measurement of graywater flow - HCBBS Forum
18. Issues regarding the network networking of factory DCS systems - HCBBS Forum
19. Which parameters need to be tested for reformed naphtha C7+ as a PX raw material? - HCBBS Forum
20. Problems with unloading ethylene oxide storage tanks - HCBBS Forum
21. How do biomass boilers remove nitrogen oxides from flue gas? - HCBBS Forum
22. Gentle experts, have you heard of submersible reciprocating pumps? - HCBBS Forum
23. 【Basic Knowledge of Glossary Definitions for “Polymers and Materials”-017】Glossary definitions related to polymers - HCBBS Forum
24. Note: Real exam questions from 2010, Knowledge section, afternoon session, question 65 - HCBBS Forum
25. S7-200 SMART free port communication - HCBBS Forum
26. Problems in vacuum distillation of oils - HCBBS Forum
27. Methanol synthesis load regulation - HCBBS Forum
28. All the mechanical moderators have been replaced by newcomers, haha – the new waves push aside the old ones - HCBBS Forum
29. 【Daily Question】Chemical Engineering Principles 139: Extraction Operations (August 12) - HCBBS Forum
30. Discussion on the design speed of cryogenic liquid pumps - HCBBS Forum
31. Regulation lag issues during the commissioning of a distillation tower? - HCBBS Forum
32. For high-temperature centrifugal pumps that experience cavitation during operation and fail to achieve the desired flow rate and head, can cavitation be reduced by cutting the impeller? - HCBBS Forum
33. Calculation of the length of the molecular sieve adsorber section - HCBBS Forum
34. 【Basic Knowledge of Terminology Explanations for “Polymers and Materials”-026】Terminology explanations related to polymers - HCBBS Forum
35. What does it indicate that the color of wastewater becomes lighter after flocculation and sedimentation treatment? - HCBBS Forum
36. How to measure the steam seal clearance of a turbine - HCBBS Forum
37. Precise control of pump outlet pressure - HCBBS Forum
38. Note: Real exam questions from 2010, Knowledge section, afternoon session, question 47 - HCBBS Forum
39. Which companies offer EPC contracting for air separation projects? - HCBBS Forum
40. Questions regarding the fabrication of blind plates - HCBBS Forum
41. Information on refining and petrochemicals - HCBBS Forum
42. The circulating water system of the polymerization reactor contains a large amount of air - HCBBS Forum
43. Corrosion of carbon steel by isopropyl ether - HCBBS Forum
44. Pump lubrication oil issue - HCBBS Forum
45. The chimney of the urea granulation washing system occasionally contains urine - HCBBS Forum
46. Issues regarding the prizes for Qinghaichuan’s 1 million registered members campaign - HCBBS Forum
47. Summary of work before the initial operation of the device - HCBBS Forum
48. Does blending of oils lower their dry point? - HCBBS Forum
49. Doubts regarding Petrochemical Fire Protection Code 7.2.1 - HCBBS Forum
50. Precise desulfurization of dioxide - HCBBS Forum
51. NB/T47013-2015 Non-destructive testing download! - HCBBS Forum
52. Strange filling methods - HCBBS Forum
53. 【Daily Question】8.10 Back +2, Right +3 - HCBBS Forum
54. Setting of safety valves on pressure vessels - HCBBS Forum
55. Fire protection distance between loading/unloading nozzles for Class A, B, and C liquids and buildings - HCBBS Forum
56. I’m seeking help from everyone regarding the calculation of flue gas concentration - HCBBS Forum
57. Alkylation consumes a large amount of acid - HCBBS Forum
58. Sign-in record post from August 17, 2015 - HCBBS Forum
59. Are power cables allowed to have joints on the cable tray? - HCBBS Forum
60. Coke center temperature - HCBBS Forum
61. 【Daily Question】Chemical Engineering Principles 143: Finned Tube Heat Exchangers (August 16) - HCBBS Forum
62. Regarding the plan for isolating the tower via blind flanges during maintenance, how is the tower to be isolated when people need to enter it? - HCBBS Forum
63. The polarity of the thermocouple and extension wire is reversed - HCBBS Forum
64. Blue-type filter for equipment selection - HCBBS Forum
65. 【Daily Question】20150820 Knowledge related to coal carbonization (2 wealth points for replies + additional 3 wealth points for correct answers) - HCBBS Forum
66. The pressure in the gas collection pipe fluctuates greatly during coal loading - HCBBS Forum
67. 【Weekly Topic】(Wed**) 2015.8.13 What is turbidity? What are suspended solids? What is the difference between the two? - HCBBS Forum
68. Pressure vessel panel assembly - HCBBS Forum
69. Wastewater treatment in coking plants - HCBBS Forum
70. Is there a specified maintenance cycle for standard orifice plates? - HCBBS Forum
71. Boiler Foundation Questions 2: Glossary Explanations: (A certain score will be given to the top 30) - HCBBS Forum
72. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for participation； Question 139 - HCBBS Forum
73. Chemical Engineering in Daily Life – Question 13: Why does wearing less clothing make one feel warmer while sleeping in cold environments? Standard answer already available - HCBBS Forum
74. Corrosion issues in SED aromatic extraction - HCBBS Forum
75. What is the general composition of acidic gases in refineries? - HCBBS Forum
76. How should I choose between the two offers? - HCBBS Forum
77. Question 46 from the Morning Section on Professional Knowledge in 2014 - HCBBS Forum
78. Charts for tube sheet calculations in GB/T151 - HCBBS Forum
79. 【Daily Practice **2】Boiler multiple-choice questions (scores will be given to the top 30.) ） - HCBBS Forum
80. Cleaning of galvanized pipe evaporative condensers, using a specialized corrosion inhibitor for galvanized pipes - HCBBS Forum
81. Regarding the grounding of the secondary side of the transformer – seeking advice - HCBBS Forum
82. Alkylated sulfate consumption of sulfuric acid - HCBBS Forum
83. Pressurized coal gasification technology - HCBBS Forum
84. Hydrophobic multi-stage throttle orifice plate MO10.9A13M25S4 - HCBBS Forum
85. Precautions for installing butterfly valves - HCBBS Forum
86. Can dimethyl ether be removed in the light-end stripping tower? - HCBBS Forum
87. Ask about the selection of thermodynamic equations for ASPEN - HCBBS Forum
88. Issue with partition slot dimensions - HCBBS Forum
89. Boiler design recruitment - HCBBS Forum
90. Air cooler animation - HCBBS Forum
91. Sulfuric acid production during the dog days - HCBBS Forum
92. Heat-free adsorption dryer tower - HCBBS Forum
93. Which standard specifies the letters such as IH and ZE in pump types? - HCBBS Forum
94. Help request {Cleaning internal floating roof tanks, steaming, purging} - HCBBS Forum
95. Chemical Engineering in Daily Life - Question 4 - Standard Answers Available - HCBBS Forum
96. The meaning represented by rail models - HCBBS Forum
97. 【Daily Question】Question from Issue 20150813 - HCBBS Forum
98. Selection of the gas source for dry gas seals - HCBBS Forum
99. 【Daily Question】Question from Issue 20150819 - HCBBS Forum
100. 【Daily Question】Question from Issue 20150819 - HCBBS Forum