English — Forum #723 (Page 248/642)

1. Environmental Protection Tip of the Day 5.31: Reward for participation, plus 3 more rewards for answering correctly - HCBBS Forum
2. Properties and uses of 1,2-cyclohexanediol - HCBBS Forum
3. On membrane separation - HCBBS Forum
4. Calculation of finned tube heat exchangers (sheet-type) - HCBBS Forum
5. I haven’t been here for over half a year; I’m just dropping by today. . See how many of these faces look familiar? - HCBBS Forum
6. Is there any experience with insulation for the pipes inside the pedestals of various columns in atmospheric and vacuum distillation units, as well as for the bottom sections of these columns? - HCBBS Forum
7. Pump nameplate - HCBBS Forum
8. 【Weekly Topic】【Storage & Transportation Version 20160531】 - HCBBS Forum
9. Small and medium-sized pump and valve manufacturers lament: there is no market for their products! - HCBBS Forum
10. Relationship between flow rate and head of variable frequency pumps - HCBBS Forum
11. How to prevent DIB-1 from failing? - HCBBS Forum
12. What are the conditions under which the flow rate and head values on the pump and fan samples apply? ? - HCBBS Forum
13. Insulation issues for liquid nitrogen storage tanks, heat exchange systems, and pipelines! - HCBBS Forum
14. How to understand 100 E Pale Stock HF(3200g)? - HCBBS Forum
15. Basis for determining whether to install a buffer tank in front of the new hydrogen compressor - HCBBS Forum
16. Downstream utilization of C5? - HCBBS Forum
17. How to handle a fire in a residue tank? - HCBBS Forum
18. I have a small question - HCBBS Forum
19. 【Weekly Topic】【Quality Version 20160607】 - HCBBS Forum
20. Solutions for the decrease in outlet pressure of the heat transfer medium circulation pump - HCBBS Forum
21. Do you know all the question types in the postgraduate entrance examination English test? - HCBBS Forum
22. Skip weld and Stitch weld - HCBBS Forum
23. Discussion on the effect of operating pressure on bed pressure drop - HCBBS Forum
24. 【Picture of the Day】2016 06 07 What is the device in this picture? There’s a reward for getting it right! - HCBBS Forum
25. The design temperature is 900°C, the design pressure is 4 Ma, and the medium is air – what pipe material should be chosen? - HCBBS Forum
26. The LNG industry now has optimistic prospects - HCBBS Forum
27. Comparison between chemical absorption and PSA pressure swing adsorption - HCBBS Forum
28. How to calculate the steam consumption of a reaction vessel - HCBBS Forum
29. What is the maximum temperature tolerance for the insulation of the main flue in a coke oven? - HCBBS Forum
30. What should be considered when selecting a flow meter? Please give me some advice - HCBBS Forum
31. Why does the pH of wastewater passing through a high-efficiency biological aerated filter (BAF) decrease in water treatment? - HCBBS Forum
32. Penalties for safety violations - HCBBS Forum
33. How to start a business? - HCBBS Forum
34. Piping design +5 years + Shanghai (Please give me a job) - HCBBS Forum
35. How to deal with the thick layer of scum in the aerobic tank of a wastewater treatment plant - HCBBS Forum
36. Compilation of information on the wet process for sulfuric acid production - HCBBS Forum
37. 【Weekly Topic】【Storage & Transportation Version 20160607】 - HCBBS Forum
38. Under what circumstances is it necessary to install a return pipe at the pump outlet? - HCBBS Forum
39. What are the supports and hangers (the common symbols for support), and what are the regulations regarding the meanings of these symbols and their corresponding types? - HCBBS Forum
40. The moving ring and stationary ring of the pump - HCBBS Forum
41. Aerobic? Still anaerobic? How should one make the choice? - HCBBS Forum
42. Specific criteria for determining the points at which the device should be shut down - HCBBS Forum
43. Experts in moving containers, especially in tank container design, please come and discuss - HCBBS Forum
44. The purity of LNG at the cold box outlet is satisfactory; what is the reason for the unsatisfactory sample quality at the outlet of the loading pump? - HCBBS Forum
45. Common standards - HCBBS Forum
46. I need a process flow diagram for the copper washing section in ammonia synthesis, including control points; CAD format would be ideal. Thank you - HCBBS Forum
47. Have you used Yokogawa’s Fieldmate software? - HCBBS Forum
48. An overview of technological innovation achievements in the coal chemical industry in recent years - HCBBS Forum
49. It is not possible to generate a heat exchange network - HCBBS Forum
50. Development of downstream products for ammonium chloride; seeking cooperation - HCBBS Forum
51. Add a water pump to the pipeline - HCBBS Forum
52. 【Q&A Question 045】2016.06.04 - HCBBS Forum
53. 【Q&A Question 043】2016.06.02 - HCBBS Forum
54. Single tall tower startup time issue - HCBBS Forum
55. It was found that eight characters had been added next to the HaiChuan logo - HCBBS Forum
56. [Petroleum Weekly] Issue 11, May 29, 2016 - HCBBS Forum
57. Seeking help: For pipes of size ∅8, how should I choose the flange standard and seal face type? - HCBBS Forum
58. Feed separation tank for sulfur-resistant shift reaction - HCBBS Forum
59. Has anyone studied the Inte Key? - HCBBS Forum
60. I have a small question for everyone - HCBBS Forum
61. 【Daily Question】June 4, 2016: +2 wealth for participation； +3 to 8 wealth for correct answers - HCBBS Forum
62. About submersible pumps - HCBBS Forum
63. Leakage issue in the compressor interstage cooler - HCBBS Forum
64. Why is the catalyst cracking regeneration temperature low while the load on the external heat exchanger is high? - HCBBS Forum
65. Flash point - HCBBS Forum
66. Problem of catalytic thermal demolition of large blind flanges - HCBBS Forum
67. 【Weekly Topic】【Quality Version 20160602】 - HCBBS Forum
68. Analysis of htri results - HCBBS Forum
69. Discussion on the method for determining the oxygen content in ethylene at around 1% - HCBBS Forum
70. One question per day; those who answer correctly receive 5 wealth points, and those who participate receive 2 wealth points； Question 305 [ - HCBBS Forum
71. Popular science on delayed coking – useful knowledge worth saving! - HCBBS Forum
72. hydrocracking - HCBBS Forum
73. What does COMP THK 3.0mm mean? - HCBBS Forum
74. Is there any inherent connection between fire hazard categories A, B, and C and fire resistance ratings? ? Or are there regulations? ? - HCBBS Forum
75. What is the pressure difference across the flush orifice plate of a mechanical seal? The details are as follows. - HCBBS Forum
76. Which literary work is the excerpt from in the lower section of “One Question per Day”, along with the author’s name and the place and time of writing? Correct answer +3 - HCBBS Forum
77. What does SGS mean in Air Liquide’s logic? - HCBBS Forum
78. Boiler drum, exhaust fan - HCBBS Forum
79. [Haichuan Freelancers] Feasibility Study on Establishing “One-on-One Offices” in the Freelancer Hall to Upgrade It into a Specialized Hospital for Haichuan Chemical Industry - HCBBS Forum
80. The topics for the college entrance examination essay have been announced; come and take a look and share your opinions! - HCBBS Forum
81. Liquid ring vacuum pump - HCBBS Forum
82. What’s the level like for the certificate in Building Energy Efficiency Engineering? - HCBBS Forum
83. How to deal with catalyst caking in isothermal transformation furnaces? - HCBBS Forum
84. The DCS reading for the differential pressure (saturated) steam flow meter is at its maximum when there are no users - HCBBS Forum
85. Poetry and Literature section separator -- Please upgrade after management - HCBBS Forum
86. Questions about GB50016 standard - HCBBS Forum
87. The State Council issues the \"Ten Measures on Water Management\"; recycled plastics may become subject to reinspection - HCBBS Forum
88. Daily Question, June 7, 2016 – Catalysis Section: Calculating the potential content of aromatic hydrocarbons in reforming feedstocks - HCBBS Forum
89. Should the steam pipeline be extended? - HCBBS Forum
90. Regarding safety training - HCBBS Forum
91. Seeking help regarding mechanical seals - HCBBS Forum
92. One question per day; those who answer correctly receive 5 wealth points, and those who participate receive 2 wealth points； Question 304 - HCBBS Forum
93. I’m saving energy; where are you? Summary post - HCBBS Forum
94. I’m not quite sure about one of the 300 common safety hazards in chemical production - HCBBS Forum
95. What measures need to be incorporated in the design for unloading Class A liquids? ? - HCBBS Forum
96. Process flow - HCBBS Forum
97. What type of soot blower is suitable for fuel gas heating furnaces? - HCBBS Forum
98. Is it better to operate a distillation tower at high pressure or low pressure? - HCBBS Forum
99. Discussion on the calculation of safety valves - HCBBS Forum
100. How can the combustible gas content in a nitrogen environment be measured? - HCBBS Forum