English — Forum #723 (Page 207/642)

1. Occupational Health Daily Question 7.9: Participate for a prize; 3 correct answers and another prize will be given - HCBBS Forum
2. 【Daily Topic】【Electrical Edition 20160713】 - HCBBS Forum
3. 【Daily Topic】【Engineering Version 20160711】 - HCBBS Forum
4. How to calculate reinforcement for square holes in towers? - HCBBS Forum
5. New technologies and processes currently being used to upgrade Kellogg-type ammonia synthesis plants - HCBBS Forum
6. Question: Regarding the safety technical supervision of pressure pipelines - HCBBS Forum
7. Regarding the question about the time at which feed is introduced into the hydrogenation unit, should the reactor be fed with feed while it is at cold temperature or at hot temperature? - HCBBS Forum
8. The reboiler of the pre-distillation tower is leaking, causing the temperature and pressure at the bottom of the tower to rise; why then do the temperature and pressure at the top of the tower decrease? - HCBBS Forum
9. Please answer the question - HCBBS Forum
10. 【Basic Knowledge of Occupational Health】: Production Materials - HCBBS Forum
11. Why does Chiga’s recycled hydrogen need to maintain a hydrogen sulfide content of several thousand ppm, while Sigea does not? - HCBBS Forum
12. Tianjin Registered Chemical Engineering Exam - HCBBS Forum
13. Where has the desulfurizer for the solvent regeneration unit gone? - HCBBS Forum
14. Question 24 from 2010, regarding process approval - HCBBS Forum
15. What technologies are currently being used for water coolers in domestic refining and chemical enterprises? - HCBBS Forum
16. Pipeline pressure testing issues in organic heat carrier boiler rooms - HCBBS Forum
17. Sulfuric acid delivery pipeline - HCBBS Forum
18. German companies’ sense of responsibility for accidents: Apologies needed even over the past 50 years - HCBBS Forum
19. Can 1.3MPa steam be used with 1.5MPa flanges and valves? - HCBBS Forum
20. What kind of pipes should be used for heat transfer oil at minus 30 degrees? - HCBBS Forum
21. Environmental Protection Daily Post 7.09: Reward for participation, plus 5 more rewards for answering 3 questions correctly - HCBBS Forum
22. If the inlet filter of the positive displacement pump is completely clogged, will the motor overload and shut down? - HCBBS Forum
23. Manifestations of side reactions in alkylated oils - HCBBS Forum
24. Safety Technology Exchange Edition: Daily Question (2016.7.9) - HCBBS Forum
25. Liquefied natural gas Vaporization - HCBBS Forum
26. Selection of safety valves and rupture discs - HCBBS Forum
27. An update from the air separation industry, dated 20160708: Linde undertakes a strategic transformation – focusing on the field of air separation gases - HCBBS Forum
28. Issues related to the use of activated carbon and defoamers in MDEA systems - HCBBS Forum
29. Whether a sight glass can be installed on the pump filter - HCBBS Forum
30. Seeking information on acetylene prices - HCBBS Forum
31. What material should be used for supporting the low thermal conductivity materials in a 400-degree jacket? ? ? - HCBBS Forum
32. 【Daily Topic】【HVAC Version 20160702】 - HCBBS Forum
33. Sign-in record post from July 3, 2016 - HCBBS Forum
34. 【Daily Judgment NO.54】July 5, 2016 - HCBBS Forum
35. 【Daily Topic】【Civil Engineering Version 20160711】 - HCBBS Forum
36. Help: Do you experts think the textbooks provided by the association are more useful or those from Tianjin University? - HCBBS Forum
37. Maintenance technology for floating ring seals in turbine compressors - HCBBS Forum
38. Air supply volume for incineration of sulfur recovery exhaust gases - HCBBS Forum
39. How does everyone detect air leaks in the system when producing acid from zinc concentrate? - HCBBS Forum
40. Natural gas experiences a temperature drop after passing through the separator - HCBBS Forum
41. How much catalyst does a plant with an annual production capacity of 1 million tons of polyethylene consume per year? - HCBBS Forum
42. 【Weekly Topic】【Storage & Transportation Version 20160708】 - HCBBS Forum
43. The installer shows you how to install Win10 using a USB drive - HCBBS Forum
44. Heat exchanger – Shell side – Supervisory inspection - HCBBS Forum
45. Treatment of deformation in the bottom plate of welded storage tanks - HCBBS Forum
46. Seek guidance on the selection of level gauges for large storage tanks containing hydrochloric acid, sulfuric acid, and lye - HCBBS Forum
47. Instrument Technical Specification Sheet - HCBBS Forum
48. Upload in DCS - HCBBS Forum
49. The issue of marking upper and lower limits on the on-site dashboard - HCBBS Forum
50. Regarding the regeneration of the softener - HCBBS Forum
51. One question per day; those who answer correctly receive 5 wealth points, and those who participate receive 2 wealth points； Question 320 [ - HCBBS Forum
52. 【Taste of Haichuan – Food Lovers of Haichuan Have Power】Staple Foods Series Voting - HCBBS Forum
53. Electric heating element - HCBBS Forum
54. I would like to ask about the principle of liquid nitrogen production - HCBBS Forum
55. reactor - HCBBS Forum
56. What is the required distance between outdoor pipe trenches or drainage ditches and buildings or structures? Are there any regulations regarding this? - HCBBS Forum
57. Sign-in record post from July 9, 2016 - HCBBS Forum
58. The effect of different oxygen concentrations on fuel combustion - HCBBS Forum
59. Is a buffer tank between the compressor and the dryer necessary? - HCBBS Forum
60. Sharing an interview experience left me confused. - HCBBS Forum
61. Blowout discs shall be replaced on schedule in accordance with relevant regulations. - HCBBS Forum
62. Heat exchanger vibration - HCBBS Forum
63. 【Daily Topic】【Civil Engineering Version 20160704】 - HCBBS Forum
64. How to convert 104.5% niacin to 100% sulfuric acid? - HCBBS Forum
65. Infrared thermometer emissivity - HCBBS Forum
66. Open course resources on pressure vessel design - HCBBS Forum
67. Pilot-scale verification of the new VESTA methanization technology - HCBBS Forum
68. High-temperature slurry on pumps and valves - HCBBS Forum
69. Mixing equipment calculation software - HCBBS Forum
70. Environmental Protection Daily Post 7.12: Reward for participation; an additional 5 rewards for answering 3 questions correctly - HCBBS Forum
71. What is the weld joint coefficient at the shell openings in opening reinforcement? - HCBBS Forum
72. Principles of accident prevention - HCBBS Forum
73. 【Weekly Topic】【Home Version 20160705】Experience the cool breeze of summer - HCBBS Forum
74. Occupational Health Daily Question 7.3: Participate for a prize; 3 correct answers and another prize will be given - HCBBS Forum
75. “\"30 years with no problems\" – can it exonerate one from liability for an accident? - HCBBS Forum
76. ZZYVP-16B self-acting pressure control valve with controller type (nitrogen supply valve) - HCBBS Forum
77. Insights from Instrument Procurement - HCBBS Forum
78. Thermal temperature calculation software after throttling - HCBBS Forum
79. Hydrocyanic acid price - HCBBS Forum
80. There are 65 reaction kettles (enamel/stainless steel); seeking project collaboration - HCBBS Forum
81. Vortex flow meter - HCBBS Forum
82. Naphtha hydrodesulfurization and dechlorination technology - HCBBS Forum
83. Are there still palladium-coated chlorine engineering electrolyzers available? - HCBBS Forum
84. [Essays] Laughter until I couldn’t stop - HCBBS Forum
85. Good methods for training instrument operators' skills - HCBBS Forum
86. 【Daily Topic】【Production Version 20160708】 - HCBBS Forum
87. Fog mai - HCBBS Forum
88. Regulations on Shift Handover in the Laboratory - HCBBS Forum
89. Is a work experience certificate demonstrating design qualifications also required for the basic exam of the certification test? - HCBBS Forum
90. How is joint efficiency calculated as mentioned in ASME B16.34? - HCBBS Forum
91. Sign-in record post from July 8, 2016 - HCBBS Forum
92. How to choose gaskets correctly? - HCBBS Forum
93. The shielded pump is cooled by a jacket, with recirculated water used for backflushing - HCBBS Forum
94. What material should be used for pipes in alcohol solutions of chloroacetic acid? - HCBBS Forum
95. Can the chloride ion concentration in water after treatment by a reverse osmosis system be reduced to below 0.1 ppm? - HCBBS Forum
96. 【Idiom Chain】7.10 Let’s go! Please follow me - HCBBS Forum
97. What is the contact angle of angular contact ball bearings? - HCBBS Forum
98. Hydrocracking shutdown - HCBBS Forum
99. Heat exchanger - HCBBS Forum
100. Problems with Mitsubishi centrifugal units - HCBBS Forum