English — Forum #723 (Page 556/642)

1. Questions for the defense exam for design approvers of Class C pressure vessels in 2015 - HCBBS Forum
2. Chemical Engineering in Daily Life - Question 8 - Standard answers available - HCBBS Forum
3. Methanol production calculation - HCBBS Forum
4. Conversion calculations between molar percentage and mass percentage - HCBBS Forum
5. Gas entrainment in distillation column - HCBBS Forum
6. I’m looking for the electronic version of “Production and Operation of Polyvinyl Chloride”. If anyone has it, please share it with me. Thank you - HCBBS Forum
7. Tianjin hazardous materials warehouse accident - HCBBS Forum
8. Why add an oxygen leakage protection catalyst - HCBBS Forum
9. How to completely remove the catalyst at the bottom of the regenerator after shutting down a catalytic cracking unit - HCBBS Forum
10. How should a distillation tower be adjusted at the beginning of operation to function properly? - HCBBS Forum
11. Construction issues at the flue interface for waste heat recovery in coke ovens - HCBBS Forum
12. How should one deal with beggars on the streets? - HCBBS Forum
13. I would like to ask how the feed position in a floating valve tower is determined - HCBBS Forum
14. The UV valve is installed at the pump inlet for this purpose - HCBBS Forum
15. The metering pump damaged the pressure gauge - HCBBS Forum
16. Sign-in record post from August 16, 2015 - HCBBS Forum
17. 【Daily Question】Question from Issue 20150814 - HCBBS Forum
18. Note: Real exam questions from 2012, Knowledge section, Morning session, Question 45 - HCBBS Forum
19. What is the concept of 1 cubic meter of gas? - HCBBS Forum
20. Determination of the density of solid-liquid mixtures - HCBBS Forum
21. How to treat cyanide-containing wastewater - HCBBS Forum
22. Issues regarding the installation of safety warning signs for major hazard sources - HCBBS Forum
23. 【Basic Knowledge of Glossary Explanations for “Polymers and Materials”-018】Glossary explanations related to polymers - HCBBS Forum
24. Four factors affecting salary increases - HCBBS Forum
25. What are significant figures? What is the meaning of the “0” in significant figures? - HCBBS Forum
26. How is the discharge volume of a centrifugal compressor calculated? - HCBBS Forum
27. Dear friends, what model of steam jet pump does your company use? What are its approximate structural dimensions and price? - HCBBS Forum
28. Which equation is better for the chloromethane system? - HCBBS Forum
29. The issue of vacuum extraction under reduced pressure – how to create a vacuum? Have you seen this type of setup before? - HCBBS Forum
30. Process flow of acrylonitrile plant - HCBBS Forum
31. Everyone can share good electrical problems they encounter in their daily work - HCBBS Forum
32. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 283 - HCBBS Forum
33. Take a look at which flow meter should be used for these process conditions - HCBBS Forum
34. Problems with ball valves for tracks - HCBBS Forum
35. Questions about water-based paints. - HCBBS Forum
36. Does anyone know how to calculate the oil level maintenance time for large mechanical equipment (compressors, high-pressure pumps)? - HCBBS Forum
37. Note: Real exam questions from 2012, Knowledge section, Morning session, Question 68 - HCBBS Forum
38. Regarding the communication issue, please take a look, sir - HCBBS Forum
39. Regarding issues with the TRICON 1131 software, please come in, dear experts - HCBBS Forum
40. Corrosion of pressure vessels and its prevention - HCBBS Forum
41. The functions and purposes of the gasoline hydrodesorption cycle and the reaction cycle - HCBBS Forum
42. Daily Question Activity 8.16: 2 wealth for participation, 6 wealth for correct answers - HCBBS Forum
43. Characteristics of hydrogen production conversion furnaces - HCBBS Forum
44. Is anyone taking the registered cost estimator exam? - HCBBS Forum
45. Selection of feed location for solvent regeneration tower - HCBBS Forum
46. The impact of sulfate ions on alkali production - HCBBS Forum
47. Benefits of using flow control orifice plates - HCBBS Forum
48. Note: Real exam questions from 2011, Knowledge section, Morning session, Question 64 - HCBBS Forum
49. Maintenance of the mechanical parts and auxiliary devices of CNC machine tools - HCBBS Forum
50. Weekly topic: 5 Wealth points for those who answer correctly, 2 Wealth points for participation； Question 137 - HCBBS Forum
51. Where should low-temperature clothing be stored usually? - HCBBS Forum
52. Looking for domestic multi-point temperature modules that can replace the Rosemount 848 series or E+H TMT-125 products - HCBBS Forum
53. How to replace the battery of the CPU card in the CS3000 system online - HCBBS Forum
54. “Technical Department of HaiChuan Irrigation Co., Ltd.” – No news from the R&D team; feeling frustrated, so coming here to post - HCBBS Forum
55. What are the materials used in the construction of rotor pumps, and what is their composition? - HCBBS Forum
56. Review of methanol production in the first half of 2015 - HCBBS Forum
57. Aspen model analysis fee - HCBBS Forum
58. Parameter setting issues when selecting Partial-Vapor for the Condenser in the Aspen RadFrac module - HCBBS Forum
59. The difference between basic design and detailed design in petrochemical engineering - HCBBS Forum
60. What causes benzaldehyde to turn yellow? - HCBBS Forum
61. The issue is whether to butt or lap the tank roof panels - HCBBS Forum
62. Zinc oxide desulfurizer for hydrogen production equipment - HCBBS Forum
63. Can a non-intrinsic safety cable be used in place of an intrinsic safety cable? - HCBBS Forum
64. 【Basic Knowledge of Glossary Explanations for “Polymers and Materials”-024】Glossary explanations related to polymers - HCBBS Forum
65. 【Daily Question】Question from Issue 20150814 - HCBBS Forum
66. What to do if you forget a security question/ - HCBBS Forum
67. Heating process of high-temperature heat transfer oil - HCBBS Forum
68. Effect of boiling operation in the coking dry gas desulfurization tower - HCBBS Forum
69. Design pressure and temperature of the pump - HCBBS Forum
70. Accident Handling 15: How to prevent the wear-resistant material in the worn areas of a circulating fluidized bed boiler from falling off? - HCBBS Forum
71. Accident Handling 14: How to prevent the wear-resistant material in the worn areas of a circulating fluidized bed boiler from falling off? - HCBBS Forum
72. Lithium bromide power equipment - HCBBS Forum
73. Ring chamber fastening type plate clamp per ANST.B16.20 standard - HCBBS Forum
74. How many major natural gas transmission pipelines are there across the country? - HCBBS Forum
75. Sulfatide regeneration - HCBBS Forum
76. Calculate air flow rate given compressed air pressure and pipe size - HCBBS Forum
77. 【Strange Chemical Processes vs Amazing Designs】The first round of lucky prizes has been awarded! - HCBBS Forum
78. Issues with chemical dosing in steam generators during use? - HCBBS Forum
79. On-vehicle control box - HCBBS Forum
80. Does the ethylene plant have an ethylene refrigerant recovery system? - HCBBS Forum
81. Gasification unit of Inner Mongolia Jingneng Lignite Upgrading Project commences operation - HCBBS Forum
82. What is the microstructure of Q345R? - HCBBS Forum
83. Note: Real exam questions from 2012, Knowledge section, Morning session, Question 43 - HCBBS Forum
84. Who has video tutorials on principles of chemical engineering? - HCBBS Forum
85. Meeting Minutes on Root Rot Issues in Concrete Pouring at the Tower Area - HCBBS Forum
86. Is brass resistant to chloride corrosion? - HCBBS Forum
87. Liquid nitrogen is produced using a single tower; the purity of the nitrogen is unstable and cannot be maintained at a constant level - HCBBS Forum
88. 【Daily Question】Question from Issue 20150817 - HCBBS Forum
89. Bearing damage in the methanol circulator - HCBBS Forum
90. Topic on regular major overhauls of imported equipment (fourth week of August) - HCBBS Forum
91. Stainless steel wax-scraping device installed on the stainless steel internal floating disk - HCBBS Forum
92. What is the density range of the catalyst in the flue gas from the smoke extractor? - HCBBS Forum
93. Is backflow measurement feasible? - HCBBS Forum
94. Regarding the circulating water volume - HCBBS Forum
95. Application areas of TIG welding - HCBBS Forum
96. Installation of pipelines on both sides of the sulfur jacket valve - HCBBS Forum
97. 【20150817】How do people understand selecting the cable gauge based on current? - HCBBS Forum
98. What are your thoughts on the enterprises registered on Haichuan Forum? - HCBBS Forum
99. What are rich gas and dry gas? - HCBBS Forum
100. The sulfur content in the feed oil used for catalytic cracking is extremely high; precautions are necessary during production - HCBBS Forum