English — Forum #723 (Page 485/642)

1. On the corrosion protection of buried storage tanks - HCBBS Forum
2. Why do circulating fluidized bed boilers have a large heat storage capacity? - HCBBS Forum
3. 【Daily Question】10.24 True or False: The key to hydrogen pre-refining catalysts lies in (Reply with +2 for rewards) - HCBBS Forum
4. How to calculate the conversion between gas-phase and liquid-phase components at different temperatures and pressures? - HCBBS Forum
5. Vapor pressure of gasoline at saturation - HCBBS Forum
6. We are planning to install a hydrogen compressor for a recent project; seeking a suitable brand! - HCBBS Forum
7. Discussion on valve opening degree? - HCBBS Forum
8. Let’s work on questions 67-68, the multiple-choice questions on laws and regulations from the 2015 First-Class Constructor Examination, question 13 part 2 - HCBBS Forum
9. Liquid chlorine cylinder handling room - HCBBS Forum
10. What safety precautions should be observed when taking samples on-site? - HCBBS Forum
11. Let’s work on question 17-20 from the 2015 First-Class Constructor Examination, related to \"Engineering Economics\": multiple-choice questions 05-06 - HCBBS Forum
12. Let’s work on question 19-20 from the 2015 First-Class Constructor Examination, in the section on \"Engineering Economics\": multiple-choice questions 09-10 - HCBBS Forum
13. Is there any update to GB/T6540-1986, Method for the Determination of Color of Petroleum Products? What is the current standard number for color determination methods? - HCBBS Forum
14. What types of manual and electric valves should be used in the pipelines for edible starch dispersions? - HCBBS Forum
15. Question 68 on Boiler Foundations, October 21: (A certain score will be given to the top 40) - HCBBS Forum
16. 【Ethylene Question Bank】10.19 What are the disadvantages of using distillation to remove MA/PD (methylacetylene and methacylene)? - HCBBS Forum
17. Diesel additive – dimethyl ether - HCBBS Forum
18. Are there any friends who can recommend jobs in DCS? - HCBBS Forum
19. Saturated steam at 0.1 MPA (gauge pressure), when converted to superheated steam, what is the maximum temperature it can reach? - HCBBS Forum
20. The impact of large fluctuations in bed temperature on ammonia synthesis catalysts - HCBBS Forum
21. What are the key indicators that are regularly checked and analyzed when the air cooler is in operation? - HCBBS Forum
22. The function and principle of the downcomer, explained in simple terms - HCBBS Forum
23. How to determine the water demand for coke oven gas collectors - HCBBS Forum
24. Describe the shutdown procedures for the circulating water plant? - HCBBS Forum
25. Joint Learning*1022: +2 wealth for participation, +9 wealth for correct answers - HCBBS Forum
26. 【Daily Question】Question from Issue 20151023 - HCBBS Forum
27. How to deal with an increase in the inlet pressure of the synthesis tower? - HCBBS Forum
28. 【Daily Question】10.24 True or False: The function of a cracking furnace is: (Reply with +2 wealth) - HCBBS Forum
29. Regarding the straight-through temperature of coke ovens - HCBBS Forum
30. I’m leaving tomorrow - HCBBS Forum
31. Safe release of new equipment - HCBBS Forum
32. Joint Learning*1026: +2 wealth for participation, +9 wealth for correct answers - HCBBS Forum
33. The multi-era of propylene - HCBBS Forum
34. Compatibility issues between Smart Plant 3D and AMD graphics cards - HCBBS Forum
35. One post per day - HCBBS Forum
36. Three tips to reduce carcinogens in cooking - HCBBS Forum
37. Design principles for the pressure tapping pipeline size of gasifiers - HCBBS Forum
38. Methods to reduce corrosion in the pre-hydrogenation system - HCBBS Forum
39. Ammonia evaporation tower in the chemical production workshop - HCBBS Forum
40. 【Petrochemical Zone】Recent Updates on Jobs (Reply +10) - HCBBS Forum
41. I’ve been working on a device recently, which is an external pressure vessel with a vacuum level of 10 Pa. Can SW6 be used for its verification? How should the design pressure be determined? - HCBBS Forum
42. 【Daily Question】Question from the 20151019 issue - HCBBS Forum
43. PDMS tube bottom elevation issue - HCBBS Forum
44. Classification of explosion hazard zones for valves with flange connections - HCBBS Forum
45. What inspections should be carried out on the boiler itself before starting a circulating fluidized bed boiler? - HCBBS Forum
46. Dry gas hydrogen production shutdown - HCBBS Forum
47. Looking for a question bank on liquefied gas desulfurization and dewaxing - HCBBS Forum
48. Oxygen-enriched combustion in power plant boilers - HCBBS Forum
49. Selection of explosion-proof terminal communication equipment and solutions to problems that arise? ? ? - HCBBS Forum
50. 【Daily Question No. 6】October 19, 2015: +2 wealth for participation, +3 additional wealth for a correct answer - HCBBS Forum
51. Bimetallic thermometer - HCBBS Forum
52. 【Quality Reading】Review and Outlook of the Global Refining Industry in 2014 - HCBBS Forum
53. Xuanli Environmental Energy’s 500,000-ton-per-year coal tar hydrogenation project - HCBBS Forum
54. Diesel decolorization sand - HCBBS Forum
55. Seeking help with rotary valve installation issues - HCBBS Forum
56. 【Petrochemical Zone】+ A summary post in the “SimSun” font – please give it a like! - HCBBS Forum
57. Which factories, and which aspects of those factories are prone to fires caused by static electricity? - HCBBS Forum
58. Briefly describe the installation precautions for the liquid receiving tank and its support plate? - HCBBS Forum
59. Waste gas treatment methods for painting booths and drying rooms - HCBBS Forum
60. How to simulate three-component distillation in ASPEN? - HCBBS Forum
61. 【Daily Question No. 38】October 22, 2015: +2 wealth for participation, +3 to +8 wealth for correct answers - HCBBS Forum
62. Analysis instrument carrier gas and standard gas framework procurement - HCBBS Forum
63. Environmental Protection Daily Quiz: October 23 – Participate for prizes; 3 correct answers and you’ll get another 3 as a reward - HCBBS Forum
64. What materials are generally used for gaskets in low-pressure steam systems? - HCBBS Forum
65. The mixing tank has a flat bottom, with the feed inlet located lower down; help with selecting an agitator - HCBBS Forum
66. Guidelines for the Standardized Management of Industrial Hazardous Waste Generating Units--8 - HCBBS Forum
67. Is there anyone who specializes in design? Could you help me calculate the heat exchange area? - HCBBS Forum
68. Production management system - HCBBS Forum
69. Laying of gasoline outer pipe - HCBBS Forum
70. Does SUS316L material rust? - HCBBS Forum
71. What is the significance of controlling the temperature of the walls in a methanol synthesis tower? - HCBBS Forum
72. 【Daily Question】10.22 True or False: The function of a compression alkali scrubber is (+20 wealth) - HCBBS Forum
73. Which company makes the best high-pressure reciprocating pumps? - HCBBS Forum
74. Can temperature measurement holes be added to the tank body later? - HCBBS Forum
75. White crystals appeared in the ammonia pipeline of the ammonia condensation cooler in the sulfuric ammonium production section - HCBBS Forum
76. Propylene plant started up - HCBBS Forum
77. Characteristics of Nanjing Guochang’s methanol synthesis process - HCBBS Forum
78. Which expert has conducted gas-liquid combined pressure tests, and how is the calculation done? - HCBBS Forum
79. Calculation of end cap cutting dimensions - HCBBS Forum
80. Hastelloy plate heat exchanger - HCBBS Forum
81. Welding process issues for 200mm carbon steel plates - HCBBS Forum
82. How should flanges of different pressure ratings be connected? - HCBBS Forum
83. Let’s work on questions 11-20 from the 2015 First-Class Constructor Examination, multiple-choice questions on Laws and Regulations, numbers 40-42 - HCBBS Forum
84. What demulsifiers are generally used in the acidic water stripping unit? - HCBBS Forum
85. Precision media filter - HCBBS Forum
86. 【Cracking Question Bank】The purpose of removing acidic gases from cracking gas is - HCBBS Forum
87. 【Help】How to draw the P,T diagram for materials on the main material line - HCBBS Forum
88. 【Daily Question】Question from Issue 20151022 - HCBBS Forum
89. Is there a shut-off valve installed in front of the flame arrester? - HCBBS Forum
90. For atmospheric-pressure heat exchangers at 200 degrees, is it necessary to use expansion joints? - HCBBS Forum
91. What kind of cable is used for communications such as RS485? - HCBBS Forum
92. What is the function of the air seal tank and the nitrogen seal tank before entering the electrolyzer? - HCBBS Forum
93. 【Ethylene Question Bank】10.20 True or False: The dehydrogenation ability of alkanes is related to the molecular structure of the alkanes - HCBBS Forum
94. Can luck be exchanged for wealth? - HCBBS Forum
95. Is there still a future for coking? - HCBBS Forum
96. What is the general proportion of China’s territory that is covered by acid rain areas? - HCBBS Forum
97. In the Snam process, the medium-pressure level is too low - HCBBS Forum
98. Why is it necessary to control the hotspot temperature? - HCBBS Forum
99. 【Daily Question】Question from Issue 20151020 - HCBBS Forum
100. Let’s work on Questions 10-20 from the 2015 First-Class Constructor Examination, multiple-choice questions 38-39 on Laws and Regulations - HCBBS Forum