English — Forum #723 (Page 37/642)

1. What is the reason for the high temperature of the acidic gas coming out of the heat regeneration tower in low-temperature methanol washing? - HCBBS Forum
2. Operational details of iron removal using xanthosiderite method - HCBBS Forum
3. Calculation issues for the heat transfer oil reboiler in a distillation tower - HCBBS Forum
4. Do motors over 7.5KW require a motor protector? ? ? - HCBBS Forum
5. Are there any requirements regarding the solute concentration during ion exchange? Can a solution with a mass concentration of around 50% be used directly for ion exchange? - HCBBS Forum
6. When conducting cavitation head experiments on a pump, is it necessary to use the medium under operating conditions for the experiment? - HCBBS Forum
7. Exchange flowers and offer mutual support - HCBBS Forum
8. Environmental Protection Daily Question (12.18) - HCBBS Forum
9. What fire hazard category is assigned to oil separators, where the oil mainly consists of organic acids, isopropyl alcohol, and aldehydes? ? - HCBBS Forum
10. A breakthrough and innovative new type of solar material – subphthalocyanine - HCBBS Forum
11. 【Special News】The tourism section of the Leisure Area is inviting you to come home and participate in the events! - HCBBS Forum
12. Implementation Plan for the Intelligent Development of Chemical Enterprises - HCBBS Forum
13. How are holes made in the pressure vessel head? - HCBBS Forum
14. Propylene glycol-water absorption experiment - HCBBS Forum
15. The Vanukov furnace and the blast furnace have many common features - HCBBS Forum
16. Is it true that the larger the selection of high-voltage equipment, the better? - HCBBS Forum
17. The time when the results will be released is getting closer and closer. . . - HCBBS Forum
18. Inspiring article: Expertise means being unsurpassed by anyone else - HCBBS Forum
19. 2016-12-22 True or False Questions - HCBBS Forum
20. How to repair a vacuum pump that has stuck - HCBBS Forum
21. Asahi Kasei zero-gap electrolyzer - HCBBS Forum
22. A newcomer to design wants to ask the experts here a question regarding steam measurement - HCBBS Forum
23. Selection of mechanical pumps - HCBBS Forum
24. Test questions - HCBBS Forum
25. How do I determine the size of a flange? - HCBBS Forum
26. Big news! **The Central Committee and the State Council have issued guidelines for advancing reforms in the field of work safety! - HCBBS Forum
27. A new future for clean energy: efficient electrocatalytic hydrogen evolution electrodes - HCBBS Forum
28. Will the rookies get eliminated in the first round of this year’s playoffs? - HCBBS Forum
29. The two terms for catalysis - HCBBS Forum
30. Daily Safety and Fire Protection Question (12.20) - HCBBS Forum
31. Coking and coal chemical manufacturing enterprises are seeking VOCS control technologies for cooperation - HCBBS Forum
32. Safety management in chemical enterprises - HCBBS Forum
33. Excuse me, expert – what is the thinnest thickness that a 250 mm pipe cap can have? - HCBBS Forum
34. I have a few questions regarding the airtightness test of the system that I still haven’t figured out; I’d like to ask everyone for advice - HCBBS Forum
35. Some flowers and applause, please - HCBBS Forum
36. Turbine and exhaust fan - HCBBS Forum
37. 2016-12-19 True or False Questions - HCBBS Forum
38. Is the rocket single-core or dual-core now? - HCBBS Forum
39. London was known as the Foggy City 60 years ago; now it’s Beijing in China that is the Foggy City! ! - HCBBS Forum
40. Intergranular corrosion and ferrite content? - HCBBS Forum
41. Seeking help from all the experts here - HCBBS Forum
42. Regarding the selection of instrument air compressors - HCBBS Forum
43. Discussion topics - HCBBS Forum
44. How to translate “small case”? - HCBBS Forum
45. Foundation-laying ceremony for the Zhongxi Environmental Protection project for the harmless treatment of coal tar and coal tar residues - HCBBS Forum
46. How are Oupai’s wooden doors? - HCBBS Forum
47. Hiring hydrogen engineers - HCBBS Forum
48. Online analyzer - HCBBS Forum
49. Negative pressure safety valve and breather valve - HCBBS Forum
50. Methods for dealing with damaged linings - HCBBS Forum
51. anti-surge valve - HCBBS Forum
52. What is the average lifespan of front-line workers in the petrochemical industry? - HCBBS Forum
53. Can Class A and Class B storage tanks really be placed inside a factory building? ? I’m so torn - HCBBS Forum
54. Do people like to travel in winter? - HCBBS Forum
55. Should the pressure gauge be installed in front of or behind the pump’s outlet valve? - HCBBS Forum
56. Is there a minimum operating pressure for centrifugal circulating hydrogen compressors? - HCBBS Forum
57. What is the best separator for dehydrating and deslagging coal tar? - HCBBS Forum
58. What are the current mainstream brand names of methanol synthesis catalyst manufacturers, both domestically and internationally? - HCBBS Forum
59. Method for recovering heat from low-grade steam in the ethylene glycol purification unit - HCBBS Forum
60. May I ask whether the ammonia nitrogen stripping tower should be classified as Category A, Category B, or Category C in terms of hazard level? ? Belongs to - HCBBS Forum
61. Fixed-bed temperature measurement point - HCBBS Forum
62. Factory calibration of combustible gas detection alarms - HCBBS Forum
63. Safety and Fire Safety Puzzles (12.26) - HCBBS Forum
64. After hitting 100 once, the next two attempts were both misses - HCBBS Forum
65. Reasons for high pressure difference in the reactor - HCBBS Forum
66. In progress: Notice from the “Petrochemical Section” regarding the collection of chemical technology materials (prizes and right to be credited) - HCBBS Forum
67. Things often overlooked in equipping workshops with emergency shower and eye wash stations - HCBBS Forum
68. Condenser is leaking water - HCBBS Forum
69. Year-end summary - HCBBS Forum
70. What are the fire separation distances required between Class A, B, and C liquid storage tanks and Class B buildings (warehouses) as well as Class C buildings (warehouses)? - HCBBS Forum
71. For a 90% methanol aqueous solution with a production rate of 1 t/h, should continuous distillation or batch distillation be used? - HCBBS Forum
72. What data can a coking plant obtain? - HCBBS Forum
73. Explain the principle of magnetic magnetostrictive level gauges - HCBBS Forum
74. Which specialty is responsible for tracking the primary valves of instruments? - HCBBS Forum
75. Russian Tu-154 crash: no survivors - HCBBS Forum
76. Reciprocating compressor fault diagnosis - HCBBS Forum
77. What’s wrong with the calculation process for determining the optimal thickness of insulation for steam pipes? - HCBBS Forum
78. Fine slag treatment - HCBBS Forum
79. The fourth set of three consecutive numbers - HCBBS Forum
80. Seek a three-phase separation machine for the dehydration and deslagging of coal tar - HCBBS Forum
81. GB151 specifies that the outer diameter of titanium and titanium alloy heat exchange tubes shall not exceed 32, but the given specifications for the heat exchanger state that the outer diameter of the heat exchange tubes is... - HCBBS Forum
82. DIN24166 - HCBBS Forum
83. Heat exchanger design - HCBBS Forum
84. What are Class A and Class B warehouse facilities? Does placing a Class A liquid storage tank inside a factory building count as a Class A goods warehouse? ? - HCBBS Forum
85. Preparation for the chemical engineering exam - HCBBS Forum
86. What is used for corrosion protection in sulfuric acid tanks? - HCBBS Forum
87. There are too many villains - HCBBS Forum
88. Has your company provided a heating allowance? - HCBBS Forum
89. The graywater heater has poor heat exchange efficiency; how to deal with it? - HCBBS Forum
90. Daily Water Treatment Question (12.23) - HCBBS Forum
91. Non-standard chemical equipment - HCBBS Forum
92. [Daily Question] 20161222 Explanation of terms in catalytic cracking: reaction time - HCBBS Forum
93. Does anyone have the process flow for low-temperature methanol washing? Please share it - HCBBS Forum
94. Lecture on Crane Operation Safety 01 - HCBBS Forum
95. On the 18th attempt, 100 gold eggs were smashed; 29 times the participation value was won, resulting in a loss of 100~ - HCBBS Forum
96. When using SW6 to calculate conical shells, the effective thickness changes while the B value remains unchanged; how to resolve this? - HCBBS Forum
97. Our company is launching a new project; as the client, what tasks should I carry out in terms of equipment technology? - HCBBS Forum
98. Are there any materials on the design of slot distributors? - HCBBS Forum
99. The company is obtaining the design qualification for Class D pressure vessels (for the first time). During the evaluation, questions will be asked of the designers – is there any question bank available? - HCBBS Forum
100. Instructions for Portable Eye Washer - HCBBS Forum