English — Forum #723 (Page 251/642)

1. Inner Mongolia’s 1.37 million-ton coal-to-olefins project to begin trial operation in July - HCBBS Forum
2. Reasons for the darkening color of coal tar hydrogenated refined oil - HCBBS Forum
3. Safety Technology Exchange Area: One Question per Day, 5.26 - HCBBS Forum
4. Viscosity of n-propyl acetate at 80°C - HCBBS Forum
5. 【Weekly Topic】【Storage & Transportation Version 201605027】 - HCBBS Forum
6. Preheating burner - HCBBS Forum
7. Forklift Operation Guidelines - HCBBS Forum
8. How are the fouling coefficient and thermal conductivity calculated in heat exchangers? Urgent! Urgent! Urgent! ! ! - HCBBS Forum
9. I’m saving energy; where are you? - HCBBS Forum
10. How to draw a flowchart - HCBBS Forum
11. Zero-point migration - HCBBS Forum
12. 【Daily Judgment NO.12】 May 20, 2016 - HCBBS Forum
13. How is the best way to connect the wire and float in a servo level gauge? - HCBBS Forum
14. 【Daily Question】2016 05 27 Hydrogenation Section Multiple-choice question On the control panel of the DCS system, “AU.” - HCBBS Forum
15. Regarding the classification of carbon content in stainless steel - HCBBS Forum
16. Process flow for synthesizing tert-butanol - HCBBS Forum
17. 【Weekly Topic】【HVAC Version 201605018】 - HCBBS Forum
18. Initial distillation and 90% point - HCBBS Forum
19. 【Daily Question】Advanced Processing 20160525 Multiple Choice: Synthetic resin raw materials generally contain a certain amount of antioxidants,... - HCBBS Forum
20. Transformed water vapor ratio - HCBBS Forum
21. Cutting off after sulfidation is completed in the converter - HCBBS Forum
22. 【Weekly Topic】【 HVAC Version 201605024】 - HCBBS Forum
23. I have a few questions regarding flanges that I need to ask - HCBBS Forum
24. How is the backpressure in the pipeline downstream of the steam-traced condensate valve calculated? - HCBBS Forum
25. Polyethylene glycol is produced by the copolymerization of ethylene oxide and ethylene glycol - HCBBS Forum
26. Upper and lower covers of the coking tower and four-way valves - HCBBS Forum
27. Seek guidance on circulating water quality - HCBBS Forum
28. Delta V - HCBBS Forum
29. Is gear repair clearance measured in factories? What method? - HCBBS Forum
30. How to resolve operational faults in oxidation ditches - HCBBS Forum
31. Regarding reading permissions - HCBBS Forum
32. Common faults of plate heat exchangers and their solutions - HCBBS Forum
33. 【Picture of the Day】2016 05 27 What is the device in this picture? - HCBBS Forum
34. Regarding the compressors used in heat pump distillation - HCBBS Forum
35. Reasons for off-flow in a double-tube heating furnace - HCBBS Forum
36. Does anyone have the construction and acceptance specifications for grounding systems? ? GB50169 - HCBBS Forum
37. Can vacuum pumps and hydraulic ejectors be used in parallel? - HCBBS Forum
38. Occupational Health Daily Question 5.21: Participate for a prize; 3 questions, and an additional prize for 3 correct answers - HCBBS Forum
39. Come to Wuhan, and Kushen will show you the “beauty” of Wuhan! - HCBBS Forum
40. Is it necessary to obtain approval from the relevant authorities for the pilot and pilot-scale tests conducted in the early stages of developing chemical products? - HCBBS Forum
41. Can hydrogen-containing waste gas be discharged directly? - HCBBS Forum
42. Are pivot-type drainage and fully flexible drainage more prone to leaks? Will the service life of a fully flexible drainage system be affected by oil leakage due to rubber aging? - HCBBS Forum
43. What is the type of flange sealing surface for the A42Y-25 safety valve? RF, FM - HCBBS Forum
44. 【Weekly Topic】【Quality Version 20160523-25】 - HCBBS Forum
45. Is it necessary to install toxic gas detection and alarm systems for naphthalene? - HCBBS Forum
46. What are the things to be mindful of when using 53C? - HCBBS Forum
47. Steam trap issues - HCBBS Forum
48. Spending money recklessly - HCBBS Forum
49. 【Daily Question】20160524 Opening Reinforcement Analysis Method (Top 50 participants + 2 rewards) - HCBBS Forum
50. Private enterprise or foreign company? Everyone, please give some advice - HCBBS Forum
51. Safety Technology Exchange Edition: Daily Question (2016.5.27) - HCBBS Forum
52. 【Daily Topic】【Electrical Edition 20160524】 - HCBBS Forum
53. Need help urgently - HCBBS Forum
54. After raising the coal cake by 10 centimeters, black-headed coke and large pieces of coke appeared in large quantities - HCBBS Forum
55. Valves attached to the heat exchanger - HCBBS Forum
56. A faint affection - HCBBS Forum
57. Everyone keeps calling him “Lao Wang”. Have you read this article about “Lao Wang”? - HCBBS Forum
58. Environmental Protection Tip of the Day 5.21: Reward for participation, plus 3 more rewards for answering correctly - HCBBS Forum
59. Why are the instrument signals from the site sent to these different locations? There are images - HCBBS Forum
60. How to calculate the carbon consumption in methanol synthesis from natural gas - HCBBS Forum
61. 【Weekly Topic】【Storage & Transportation Version 201605018】 - HCBBS Forum
62. For production modifications, how to determine the load-bearing capacity of a structure - HCBBS Forum
63. 【Chemical Industry Standards】Circulating water parameters - HCBBS Forum
64. Methanol trimethylamine ion exchange resin - HCBBS Forum
65. Xuzhou Dongxing’s LNG production facility using 40,000 cubic meters per hour of coke oven gas has been successfully put into operation - HCBBS Forum
66. Super Claus sulfur recovery process - HCBBS Forum
67. Control of medium-pressure waste boiler water during transformation - HCBBS Forum
68. 【Q&A Question 036】May 26, 2016 - HCBBS Forum
69. The company has a task to remove scale from iron ore powder pipelines; could someone give some advice? - HCBBS Forum
70. Basic Knowledge – Basic Knowledge of Organic Organic Chemistry 01 - HCBBS Forum
71. 【Daily Judgment NO.11】 May 19, 2016 - HCBBS Forum
72. Electroslag balling - HCBBS Forum
73. Sulfur Daily Question, May 22------3 points for participation, 10 points for a correct answer - HCBBS Forum
74. Purging issue - HCBBS Forum
75. Which is better, drinking purified water or mineral water? - HCBBS Forum
76. Seamount intrinsically safe solenoid valve - HCBBS Forum
77. Study on liquid distribution in corrugated packed towers - HCBBS Forum
78. I would like to ask fellow sailors: how should a hammer-type check valve be selected, and which standards should be referred to? - HCBBS Forum
79. Sign-in record post from May 19, 2016 - HCBBS Forum
80. Proposal to launch the [The Most Beautiful Poem in My Heart] campaign in the poetry section - HCBBS Forum
81. What flow meters are available that can output pulse signals? - HCBBS Forum
82. The heat exchange area for flue gas-water interaction, along with the required materials - HCBBS Forum
83. SIS design - HCBBS Forum
84. 【Daily Topic】【Production Version 20160517】 - HCBBS Forum
85. Issues regarding the renewal registration and continuing education for injection molding professionals - HCBBS Forum
86. Flue gas temperature after denitration - HCBBS Forum
87. I would like to ask: what size of reformer is required for a PX plant with a capacity of 700,000–800,000 tons per year? - HCBBS Forum
88. Analysis of axial force in boiler feed water pumps - HCBBS Forum
89. Which companies have national standards for purifying lubricating oils and a need to filter and regenerate hydraulic oil? - HCBBS Forum
90. Keep in mind! Open the newborn’s tiny fists in a timely manner - HCBBS Forum
91. Regarding the cleaning of packaging barrels - HCBBS Forum
92. Wooden grid packing benzene washing tower - HCBBS Forum
93. Problem with the shielded pump: high current. Please everyone share your thoughts - HCBBS Forum
94. The pH of the wastewater from the Lindlar low-temperature methanol wash alcohol-water separation tower is low - HCBBS Forum
95. Material selection for mixed acid equipment - HCBBS Forum
96. One Question per Day on Synthetic Ammonia (Series 102) - HCBBS Forum
97. Does a baffle rod heat exchanger require a patent license? - HCBBS Forum
98. How is the water vapor ratio in a pipeline calculated? ? ? - HCBBS Forum
99. Is the heat exchange in the air-steam preheater equivalent to the adiabatic exchange in the turbine? - HCBBS Forum
100. What are the raw materials that can replace lithium oxide in hydrogen production? - HCBBS Forum